Construct a large solar heater using an insulated structure mounted to the roof and painted black. Fill the interior with brass tubing painted black, and line the interior of the insulating structure with mirrors. Add one mirror above the structure as a back/lid that stands up vertically at the back of the structure. Careful to monitor the suns rays each season and make sure it's not aiming any reflected light at dry flammable materials. Route the pipes through your system and connect them to the in and out on the solar oven.
Hey... I need a one on one. I am a biosystems engineering student. I would like to know more about cleaning the biogas and compressing it to cylinders. Is there anyway we could get in contact
Very helpful. Consider a wood chip compost pile next to the biodigester to keep it warm. I'm planning this inside a small "greenhouse" to heat the digester.
Very helpful video and I very much appreciate your detailed explanation. We own a farm and we have lots of animals and lots of leftover vegetable products and a bio digester set up with the filtration system like what you explained here is exactly what’s needed. Ultimately we would like to do the same thing is maybe filter the Biogas a second time through the three step process so that it can be compressed into cylinders and used to power a Biogas generator. That is really what we would like to do and would like to get to this point because we’re trying to build a offgrade community that will use Biogas for the generator and solar panels with a battery back up system where we can implement this kind of generator when the battery level drops below 50%. I am very interested in learning more on a larger scale but we want to make sure we do it correctly and would love to communicate sometime for a sharper outcome that can be used for off grid living. As far as the toilets we will be using incinerator toilets and the gray water will be put through a gray water filtration system before going into the Drain system. We have given this much thought I just thought I’d share a little bit with you as well. Thank you so much will always be watching
Thanks Patrick. Sounds like you have a really given it some thought. Your system sound like the perfect system! Keep me updated when you get it running. Always interesting to hear about others experiences with biogas and off-grid tech
Yeah same here on all points what I have to worry about now is he saying it's not efficient to run in the winter I will make that comment to him as well
As your toilet waste also produces biogas and contains the bacteria needed for the digestion process; why incinerate it rather than putting it into the digester?
brother, is making bio gas is risky or not? do we need to change water and other things time to time? how to depose the water etc? what is in the white form? where i can get it? please, help me.
HI Pranjal. There is a risk to making biogas, but it is only usually dangerous when the gas is pressurized. Yes you will need to change the water from time to time but that will depend on how much gas you are producing. If you are making lots of gas you will need to change more often. The white material is cat litter, you can also use silica gel beads. Something to remove the moisture from the gas.
@@GetMeOffGrid_ thank you, your work is really great and simple to understand, simple to do.😃😃 But, i thinking to make a biogas in a 1000 litre water tank. Is it a good idea and store the gas in a big tube? Is this a good idea.?
It really depends on the amount of gas you are producing. If you check out my other scrubbers video, you will see I changed the design a bit to help with the monitoring of the materials. th-cam.com/video/4HXgKTqT-l8/w-d-xo.html
I have collected tiny iron particles from creeks when panning for gold - I used a magnet to separate them from the other fine particles in the pan - maybe a jar of this?
Did you find the water siphoning back into the digester when ever its temperature droped? The fix would be another empty jar before the water jar. Digester into top of the empty jar and water jar fed from bottom of empty jar.
I am very impressed by your work on modifying the biogas system to a cold climate. For a while, I was thinking about a single solution to purify both CO2 and H2S through a sustainable method. How about using NaOH or KOH solution to bubble through first? H2S becomes Na2S/K2S+H2O and CO2 becomes Na2CO3/K2CO3+ H2O. Then we can add a water container to bubble through to remove alkalinity in the gas in case. You can make the system locally sustainable if you use KOH solution made from wood-ash.
Interesting idea. I like the fact it could be homemade, using the wood ash. It doesn't reduce the number of scrubbers though, as if you use water to remove the alkalinity you would have to then remove any excess moisture using some dehydration: cat litter, charcoal etc.
@@GetMeOffGrid_ thanks for the reply. In fact KOH absorbs almost all the CO2 compared to just bubbling through water. So you will get less volume of gas which has high methane content. This helps reduce the storage space. You will get good clean burning.
Thanks for this informative tutorial, I would like to know more about second jar, what did you use . I see white powder, it's of which material or component?
Hi sir good day. I want to know more about biogas system and Anaerobic. I want to contruct one in our house for cooking. Can I have your guidance sir please.
I am into hydroponic farming, and want to use the CO2 in a controlled enclosed environment during the day. How can I extract CO2 gas from the water? (2) It appears like low temperatures slow down the production of methane gas. What is the optimal temperature level to maximize gas production?
Hi. As I sure you know, as you are a hydroponic farmer, CO2 dissolves in water to for carbonic acid. It is quite difficult to get carbon dioxide back out of the water. You could boil it? But its quite energy intensive. Optimal temperatures are 35-40 degrees C.
You can increase the efficiency of the CO2 removal stage by using aquarium air stones. They make the bubbles really small thus increasing the surface area of the gas/water interface. Not sure if you have enough pressure though. Secondly, a glass enclosure (greenhouse) around the biogas digester would warm it up quite a bit, especially if you paint the digester housing black. Use the Sun.
Hi Thomas, Thanks for the suggestions. Check out my most recent video on scrubbers...I did extactly as you suggest...great minds! th-cam.com/video/4HXgKTqT-l8/w-d-xo.html I didn't go for a greenhouse, I went for the other option which was a lot of insulation: th-cam.com/video/TJUqjQbnon4/w-d-xo.html
Thanks for this. Really clever using cat litter. Hadn‘t thought of that. For heating, would maybe encasing your digester in compost be a reasonable heat source for avoiding decommissioning in winter?It would require a high heat compost with enough nitrogen and cellulose, but seems like a good off-grid thing worth experimenting with.
The way the tubes are set, releasing the gas into the bottom of the container. The gas will then go up, as it is lighter than air and the pressure build up will push it through the next scrubber.
I believe cars run on cng as lpg is deemed too dangerous. Cng is basically 98% methane. This biogas was stated to be 80-90% pure so it should run a car but with a little less efficiency.
I think you could justifiably do it either way around. I chose to do it last so there is less chance of the wool being corroded by moisture and rusting.
Question the left over product is dry to use as fertilizer and cat I use pet waste for bio gas and would the pet waste after it has been used for bio gas be a safe fertilizer
Using dog waste could be dangerous as it could have bacteria that can affect humans in. So if you the use it on food plants it could be transferred to you
@@GetMeOffGrid_ got you I assume would be sterile will have to do the experiment on a large cat shelter I support on central america, also if you keep ading manure and vegetables food scrap the system will keep running
Please explain why you're not able to run this in the winter how cold is it where you're at in a winter that would be a problem if you wouldn't be able to use this year round
The digester needs to be at least 35 degrees C to work well. So in the winter, depending on your insulation and air temp it could be a lot of energy to keep that temp. Not a problem if you shut it down, might have to reboot with some cow manure in the spring.
Hi Tom! Can you show me the process of how to do that things? I know the process but I don't how to do it step by step. Where should I put the hose at the end? What is that storage tank? Sorry for a lot questions. I hope you will help me.
I have added chapters to the video description so hopefully you will be able to navigate to important bits of the video more easily. For more information about the biogas digester setup step-by-step check out this video: th-cam.com/video/Z9MTCFWTpyo/w-d-xo.html
Hello this video is amazing but i couldn't hear properly what material did you use for removing water vapour and sulfide, i have been using biogas since 2007 but couldn't start generator for power generation but now i can fix it by using your method to purify it thanks man
How long is a piece of string. It will all depend on how much volume of moist gas is moving through your system. I haven't got a good idea of any relationship between feed in a time on the filter change yet.
Great video, you mentioned decommissioning the biodigester for winter because it was too expensive to heat. Why don't you heat it with a biogas heater?
@@GetMeOffGrid_ can i use rice grains instead of cat citter its a doubt ???is it possible bcoz have seen people dip their mobiles in a pot of rice to absorb the water if it gets wet
The steel wool will look like it has rusted. So when that gets to over half I'd suggest it needs to be changed. Cat litter needs to be changed when it can no longer absorb moisture. Check out this video, for a set of scrubbers that are easier to check these things: th-cam.com/video/4HXgKTqT-l8/w-d-xo.html
The quick answer is yes. A few options, either increasing the pH to above 85 or by adding soda ash. I've never done it though so can't say how easy or effective either would be.
How do you replennish the CO2 reaction in water? Maximum von entrationbwill be reached and then? Baking Soda? Calcium containing chalk-Rock? Regular change of water?thanks
Hello I like your videos but I may have some questions like how much time it need to produce gas and I was facing problems with scrubbing it from these toxic gases hope you would answer and thank you any way
@@GetMeOffGrid_ Hi and thank you for your reply. When yu say not recommended as it would become volatile,can yu elaborate please and ca you reccomend a suitable preasure. Regards Martin steele
That's very helpful as video. I'm learning English and I don't get yet a sharper listening. I'd like to see the orthography of the second bottle content that you have use instead of silica gel.
@@GetMeOffGrid_ I got it, It was cat litter that I was looking for. As you said in the video, cat litter is cheaper and more available than silica gel, isn't it?
gr8 info...i have one question .i have built big digester (12feet diameter 7 feet high underground) now i am to the filteration plz suggest the size of tubes . m thinking 3 inch pvc pipes but couldn't get exact size info.on internet
When the water becomes more acidic, around pH5 will probably be good. Any lower and it will be too acidic. The cat litter can be disposed of in normal trash. If you have compostable cat litter then you can put it in the compost. The acidic can be neutralized with lime or chalk
Sir, well don it's very good useful explanation about your project I wish you very mush success in it. Greetings from Johan D. BELGIUM Technical Engineer
@@GetMeOffGrid_ I planning to do biogas in big level I definitely take video and dedicate that video for you if iam successful, you are my inspiration.
A byproduct you will have from the steel wool will be moss killer, it'd be better to put the dryer after that if you can find a use for it. However do check if your country still allows the use of it, the law in Denmark for example stands that you can use it but can no longer buy it.
This is interisting Idea, I want to create something like this in Philippines where I lived. Because it has a warm climate. And also I want to ask how to use biogas to generator, what generator is possible for biogas to turn into electricity.
Hi, happy to see your video that actually searching for. but is the entire project is still working? as what is the time you can use the methane after purifying by this method. What is your digester tank capacity?. Is CO2 can be removed by simply passing through the water without any pressure? hope that you will answer me. I was using this biogas 1Mcube capacity from 2010 onwards by putting kitchen waste only( 3-5kg) If this is working will need to upgrade my biogas .. Thanking you
Hi Navin. The CO2 can be removed by passing through just the water, yes. I would expect any biogas system to be pressurised from the tank towards the storage. It does not need to be pressurised more than that to use these scrubbers. The system will work continuously, you will need to change the water at some point as the water would get saturated with CO2 (that will become Carbonic acid). You will need to change the drying agent (silica or cat litter) when it gets saturated with water. You will also need to change the steel wool once that has all reacted with the H2S. You will be able to tell when the steel wool needs changing because it will be oxidised (turn brown). How long will this take? With a small digester like you have, it will be once at year or something like that.
It depends what type of cat litter you use. Clay and wood, normally. Things that are dry and will expand when made wet. It will remove the moisture from the gas.
Can you please tell me if this system works for acid fumes like nitric acid or bromine ? I want to install one to my fume hood but I am so confused, nobody can give me a clear answer. I would greatly appreciate an answer from you thanks !
I am not a chemist so not really familiar with those chemicals. A quick search on Google tells me that if you add lime to the water you can neutralize the nitric acid. Bromine looks like a much more complex chemical so you will have to your own research on that one.
You will only need to change it when it has become saturated with water and therefore would not be able to absorb more moisture. When this is will depend on how much gas you are producing.
@@GetMeOffGrid_ thanks; great help; this project I am making will be the first in Qatar; hope I can do it right; I will share with you the complete process when it is completed; again thanks and bless you
another questin; Sequence of tanks; according to you; cat litter is used to dehydrate the gas; should'nt this be the last stage of the purification procsses; i.e. after the CO2 extraction tank ??
That would depend on the volume of gas you are producing. The material you use to dry the gas it relatively simple to tell, once it becomes saturated with moisture change it. For the water the easiest way to tell would be to check the pH if it has become more acidic than tap water you can change it. The iron wool will change colour, or rust so change it when it becomes mostly rusty. I hope that helps.
@@GetMeOffGrid_ thanks after this video there was no video about your biogas project How's the progress so far, what were the solutions you applied since your last attempt to fill the Ballon failed Curious to know.
@@samlenlap I am currently redoing the digester. It needs to be moved and I am going to make some changes to the design (adding a drain etc). This is taking a while unfortunately as I have been focusing on my other projects. I hope to get a video out in the next month on the biogas.
I believe you should be using Iron oxide as the scrubber agent for Hydrogen sulfide rather than the Iron metal found in steel wool. You can burn the wool to react the metal with air and form the oxide.
I hope you found this useful. Let me know if you did, if you didn't where would you like more detail? Cheers
Construct a large solar heater using an insulated structure mounted to the roof and painted black. Fill the interior with brass tubing painted black, and line the interior of the insulating structure with mirrors. Add one mirror above the structure as a back/lid that stands up vertically at the back of the structure. Careful to monitor the suns rays each season and make sure it's not aiming any reflected light at dry flammable materials. Route the pipes through your system and connect them to the in and out on the solar oven.
Great idea! I will hopefully get round to doing something with a solar heater at some point.
Thank u so much .
No problem!
Hey... I need a one on one. I am a biosystems engineering student. I would like to know more about cleaning the biogas and compressing it to cylinders. Is there anyway we could get in contact
Very helpful. Consider a wood chip compost pile next to the biodigester to keep it warm. I'm planning this inside a small "greenhouse" to heat the digester.
And make sure the greenhouse is vented at the top
Very helpful video and I very much appreciate your detailed explanation. We own a farm and we have lots of animals and lots of leftover vegetable products and a bio digester set up with the filtration system like what you explained here is exactly what’s needed. Ultimately we would like to do the same thing is maybe filter the Biogas a second time through the three step process so that it can be compressed into cylinders and used to power a Biogas generator. That is really what we would like to do and would like to get to this point because we’re trying to build a offgrade community that will use Biogas for the generator and solar panels with a battery back up system where we can implement this kind of generator when the battery level drops below 50%. I am very interested in learning more on a larger scale but we want to make sure we do it correctly and would love to communicate sometime for a sharper outcome that can be used for off grid living. As far as the toilets we will be using incinerator toilets and the gray water will be put through a gray water filtration system before going into the Drain system. We have given this much thought I just thought I’d share a little bit with you as well. Thank you so much will always be watching
Thanks Patrick. Sounds like you have a really given it some thought. Your system sound like the perfect system! Keep me updated when you get it running. Always interesting to hear about others experiences with biogas and off-grid tech
Yeah same here on all points what I have to worry about now is he saying it's not efficient to run in the winter I will make that comment to him as well
As your toilet waste also produces biogas and contains the bacteria needed for the digestion process; why incinerate it rather than putting it into the digester?
Thanks for sharing this video. Mabuhay from the Philippines.
Thanks!
This is what I am looking for. Thank you for a good explanation & in sharing your project..
Great! Glad it helped
Thanks a lot❤
Needed it for a project of mine
good info! looking forward to the compressed gas video.
You and me both!
@@GetMeOffGrid_this looks cool th-cam.com/video/mLblB04UfUo/w-d-xo.html
Great video and info! thanks
Glad it was helpful!
Thank you so much for that information. It is very useful for me
Glad it was helpful!
Thanks a lot good information
Glad it was helpful!
Thank you so very much for the video ❤
brother, is making bio gas is risky or not? do we need to change water and other things time to time? how to depose the water etc?
what is in the white form? where i can get it? please, help me.
HI Pranjal. There is a risk to making biogas, but it is only usually dangerous when the gas is pressurized. Yes you will need to change the water from time to time but that will depend on how much gas you are producing. If you are making lots of gas you will need to change more often. The white material is cat litter, you can also use silica gel beads. Something to remove the moisture from the gas.
@@GetMeOffGrid_ thank you, your work is really great and simple to understand, simple to do.😃😃 But, i thinking to make a biogas in a 1000 litre water tank. Is it a good idea and store the gas in a big tube? Is this a good idea.?
Hi Tom , nice video. It is great to see the channel growing.
Hi Craig. Thanks very much! I really appreciate you coming back and watching new videos. Cheers
This video was very helpful, i have a defence at school today cos I'm currently working on a project on biodigester
Glad it helped!
Good afternoon
Please what else can i use in place of silica gel or catfeed?
@@onoworemuriomen8163 Activated charcoal
@@GetMeOffGrid_ Thank you sir
You are best teacher.
Thank u so much.
Thank u youtube.
I learn a lot on youtube.
I am glad you find my videos useful! Cheers
What is the name of the other chemical used after water in the scrubber
Thankyou for the video. How often do we have to replace the filtering materials?
It really depends on the amount of gas you are producing. If you check out my other scrubbers video, you will see I changed the design a bit to help with the monitoring of the materials. th-cam.com/video/4HXgKTqT-l8/w-d-xo.html
solar for heating?
Yeah, that is what I would really like to do!
@@GetMeOffGrid_ can the gas actually push a generator to make elecktricity?
Very informative and helpful video. Thanks for your efforts and time.
Glad it was helpful!
Awesome 👍
Thanks
Awesome videos, can't wait for the gas compression and generator videos.
You and me both!
Good job, is there any other alternatives to steel wool for the h2s scrubber? Thanks
Water will remove some H2S, I don't know of another way. I'm sure there must be though. If I come across one I'll let everyone know
I have collected tiny iron particles from creeks when panning for gold - I used a magnet to separate them from the other fine particles in the pan - maybe a jar of this?
Thank you bro fro your valuable information.
No worries. Glad you found it valuable
Thanks for u r information
No worries. I am glad you found it useful
How often should each filter need to be changed? Or is there a way to test it?
Did you find the water siphoning back into the digester when ever its temperature droped? The fix would be another empty jar before the water jar. Digester into top of the empty jar and water jar fed from bottom of empty jar.
I didn't find that, although, the digester itself never really got working properly.
What is the input for this system?
Cow manure and kitchen scraps
@@GetMeOffGrid_ Ok.. but how do you add that thro such a thin input pipe...
@@nagendravc If you check out some of my other biogas videos you will see I use a waste disposal unit to shred the food scraps
@@GetMeOffGrid_ Aah Got it! Thanks
I am very impressed by your work on modifying the biogas system to a cold climate. For a while, I was thinking about a single solution to purify both CO2 and H2S through a sustainable method. How about using NaOH or KOH solution to bubble through first? H2S becomes Na2S/K2S+H2O and CO2 becomes Na2CO3/K2CO3+ H2O. Then we can add a water container to bubble through to remove alkalinity in the gas in case. You can make the system locally sustainable if you use KOH solution made from wood-ash.
Interesting idea. I like the fact it could be homemade, using the wood ash. It doesn't reduce the number of scrubbers though, as if you use water to remove the alkalinity you would have to then remove any excess moisture using some dehydration: cat litter, charcoal etc.
@@GetMeOffGrid_ thanks for the reply. In fact KOH absorbs almost all the CO2 compared to just bubbling through water. So you will get less volume of gas which has high methane content. This helps reduce the storage space. You will get good clean burning.
Goodmorning Sir
Can I ask something?
This is for school purposes
Thanks for this informative tutorial, I would like to know more about second jar, what did you use . I see white powder, it's of which material or component?
What is the white powder name?
Cat litter
Nice video. at wich rate should we change for example the water of the scrubbers?
Hi sir good day. I want to know more about biogas system and Anaerobic. I want to contruct one in our house for cooking. Can I have your guidance sir please.
How can I help you?
thank you for detailed explanation.......If you may, why didn't you close the opening of the feed to prevent oxygen from entering??
Simple and easy to do, best video on the topic😃🤩🌱🌏
Thanks so much 😊
I am into hydroponic farming, and want to use the CO2 in a controlled enclosed environment during the day. How can I extract CO2 gas from the water? (2) It appears like low temperatures slow down the production of methane gas. What is the optimal temperature level to maximize gas production?
Hi. As I sure you know, as you are a hydroponic farmer, CO2 dissolves in water to for carbonic acid. It is quite difficult to get carbon dioxide back out of the water. You could boil it? But its quite energy intensive. Optimal temperatures are 35-40 degrees C.
Very cool. Why are there two “inputs” to the water filter? Thanks!
I had two outputs from my digester. Cheers
@@GetMeOffGrid_I was wondering the same thing
Those top pipe not airtight will d gas not leak out or have air ingress?
Thanks such an information,
I am happy it was useful to you
hi, can an alkaline solution instead of distilled water when removing CO2 in the purification of methane.
Thank you
You're welcome
You can increase the efficiency of the CO2 removal stage by using aquarium air stones. They make the bubbles really small thus increasing the surface area of the gas/water interface. Not sure if you have enough pressure though.
Secondly, a glass enclosure (greenhouse) around the biogas digester would warm it up quite a bit, especially if you paint the digester housing black. Use the Sun.
Hi Thomas, Thanks for the suggestions. Check out my most recent video on scrubbers...I did extactly as you suggest...great minds! th-cam.com/video/4HXgKTqT-l8/w-d-xo.html
I didn't go for a greenhouse, I went for the other option which was a lot of insulation: th-cam.com/video/TJUqjQbnon4/w-d-xo.html
@@GetMeOffGrid_Too funny! I will check it out.
Usefull video, i would like to ask if Whats the name of that powder that is cheaper than silica.thank you
Cat litter
Thanks for this. Really clever using cat litter. Hadn‘t thought of that. For heating, would maybe encasing your digester in compost be a reasonable heat source for avoiding decommissioning in winter?It would require a high heat compost with enough nitrogen and cellulose, but seems like a good off-grid thing worth experimenting with.
Suprb👍👍
Thanks 👍
how do you make sure the gas goes in and comes out through the correct tube. do you use any suction methods to ensure that?
The way the tubes are set, releasing the gas into the bottom of the container. The gas will then go up, as it is lighter than air and the pressure build up will push it through the next scrubber.
Awesome video. Do you think this system would work with wood gasifier generator?
@tom - can you provide more details on the material used for the removal of Hydrogen Sulphide pls
It is iron wool. Sometimes used to clean metal. Any kind of iron shavings would work.
Can this purified biogas be used in lpg converted cars
I am not sure to be honest. I have seen people using this biomethane to power vehicles but am not sure if they use the same system as LPG
Thanks man
@@Moses_Mash No worries
I believe cars run on cng as lpg is deemed too dangerous. Cng is basically 98% methane. This biogas was stated to be 80-90% pure so it should run a car but with a little less efficiency.
Is there a reason why you place the steel wool scrubber last? Why not first, then the water, then the dehydration?
I think you could justifiably do it either way around. I chose to do it last so there is less chance of the wool being corroded by moisture and rusting.
@@GetMeOffGrid_ Thanks. Makes sense. Just thought you’d get residual h2s in your water and kittylitter.
I think you would for sure, but I don't think thats a bad thing. The water will act as a "pre-filter"
Question the left over product is dry to use as fertilizer and cat I use pet waste for bio gas and would the pet waste after it has been used for bio gas be a safe fertilizer
Using dog waste could be dangerous as it could have bacteria that can affect humans in. So if you the use it on food plants it could be transferred to you
@@GetMeOffGrid_ got you I assume would be sterile will have to do the experiment on a large cat shelter I support on central america, also if you keep ading manure and vegetables food scrap the system will keep running
Nice vid
Thanks!
Please explain why you're not able to run this in the winter how cold is it where you're at in a winter that would be a problem if you wouldn't be able to use this year round
The digester needs to be at least 35 degrees C to work well. So in the winter, depending on your insulation and air temp it could be a lot of energy to keep that temp. Not a problem if you shut it down, might have to reboot with some cow manure in the spring.
Does the order in which the purification done matter?
Hi..can you please tell me what is the second white colour thing do use to remove the water,,if can mention product lint or its name
It is cat litter
Hi Tom! Can you show me the process of how to do that things? I know the process but I don't how to do it step by step. Where should I put the hose at the end? What is that storage tank? Sorry for a lot questions. I hope you will help me.
I have added chapters to the video description so hopefully you will be able to navigate to important bits of the video more easily. For more information about the biogas digester setup step-by-step check out this video: th-cam.com/video/Z9MTCFWTpyo/w-d-xo.html
Hello this video is amazing but i couldn't hear properly what material did you use for removing water vapour and sulfide, i have been using biogas since 2007 but couldn't start generator for power generation but now i can fix it by using your method to purify it thanks man
Hi Adil. I have updated the description and put the information there for you. Cheers
Great vedio .I think adding lime to water (lime water) react easier with co2
Yeah. Adding lime would precipitate the CO2 into chalk. Definitely would work, unsure how it compares in terms of effectiveness
Thank bro i am plannig for large scale of biogas plant
Nice! Where in the world are you doing that? This might be of interest to you...my latest scrubber upgrade: th-cam.com/video/4HXgKTqT-l8/w-d-xo.html
@@GetMeOffGrid_ i am from india sir i am going to plan 1.3 tdp biogas plant for my bussness
@@hiteshpatel4567 Very nice! Very cool, good luck with it
would this get rid of odor in biogas
How fast will these filters need to be replaced? when does the water stop taking up co2, when is the cat litter too moist to take more water...
How long is a piece of string. It will all depend on how much volume of moist gas is moving through your system. I haven't got a good idea of any relationship between feed in a time on the filter change yet.
Great video, you mentioned decommissioning the biodigester for winter because it was too expensive to heat. Why don't you heat it with a biogas heater?
With the new insulated housing, it is actually not at all expensive. Check it out here: th-cam.com/video/TJUqjQbnon4/w-d-xo.html
Are all the tubes in the bottle to be inserted in the same height ??
In input should go to the bottom of the scrubber and the output should come from the top. Exact heights is not too important
@@GetMeOffGrid_ thanks for the prompt responses will let u know once done .Appreciate the responses
@@GetMeOffGrid_ can i use rice grains instead of cat citter its a doubt ???is it possible bcoz have seen people dip their mobiles in a pot of rice to absorb the water if it gets wet
Thanks. Great content!! So how do we know when it's the right time to replace the water, car litter or the steel wool
The steel wool will look like it has rusted. So when that gets to over half I'd suggest it needs to be changed. Cat litter needs to be changed when it can no longer absorb moisture. Check out this video, for a set of scrubbers that are easier to check these things: th-cam.com/video/4HXgKTqT-l8/w-d-xo.html
But can the CO² be seperated and using for other applications?
The quick answer is yes. A few options, either increasing the pH to above 85 or by adding soda ash. I've never done it though so can't say how easy or effective either would be.
How do you replennish the CO2 reaction in water? Maximum von entrationbwill be reached and then? Baking Soda? Calcium containing chalk-Rock? Regular change of water?thanks
Sir how connections done for purification process ?
Kindly make short to guide
th-cam.com/video/4HXgKTqT-l8/w-d-xo.html
does the water need replacing? Also, does the cat litter become too moisture laden to work? Ditto for the steel wool?
Yes, yes and yes.
How often do you need to change the filters? Could you use a trompe to clean and pressurize the gas?
Can dry sand be a good alternative for cat litter
It could be. Personally, if I couldn't get cat litter I'd use charcoal.
Goodmorning Sir, it is uses an air pump?
No its passive
Hello I like your videos but I may have some questions like how much time it need to produce gas and I was facing problems with scrubbing it from these toxic gases hope you would answer and thank you any way
All these things are variable. Depends on the size of your digester, and the type of feed you are using. What problems are you having?
Hi is it possible to compress gas into liquid form.
Regards Martin steele
Yes. You just need sufficient power to compress it. Not really recommended though as it would become really volatile.
@@GetMeOffGrid_ Hi and thank you for your reply. When yu say not recommended as it would become volatile,can yu elaborate please and ca you reccomend a suitable preasure.
Regards Martin steele
That's very helpful as video. I'm learning English and I don't get yet a sharper listening. I'd like to see the orthography of the second bottle content that you have use instead of silica gel.
Hi, not sure exactly what you mean but in the description, I explain each bottle. Hopefully, you can find what you need there.
@@GetMeOffGrid_ I got it, It was cat litter that I was looking for. As you said in the video, cat litter is cheaper and more available than silica gel, isn't it?
gr8 info...i have one question .i have built big digester (12feet diameter 7 feet high underground) now i am to the filteration plz suggest the size of tubes . m thinking 3 inch pvc pipes but couldn't get exact size info.on internet
It doesn't really matter the size of tubes. 3" would work fine.
@@GetMeOffGrid_ thnnxx ..will update soon
Great! Thanks. I have a question. How often should you change the water, cat litter and steel wool in the bottles?
That really depends on how much gas you are producing. At the moment I don't have any guidelines for this I'm afriad.
How stable is the steel wool after it filters out the hydrogen sulphide? How to dispose without killing the neighbor's cat?
I would dispose of it in your general waste to be safe.
Once the filter medias are saturated how do you responsibly dispose of them? Also does the steel wool just turn to rust?
The steel wool does turn to rust. The cat litter can go in normal household waste. If you use activated charcoal it can be composted.
Love from India....💐🎊🎉
Many thanks
@@GetMeOffGrid_ most welcome
Can I use saw dust instead of cat litter
Yes, I don't see why not. I imagine that it would need to be changed more regularly
When is the right time to change the acid water and the cat litter? How to disposal them?
When the water becomes more acidic, around pH5 will probably be good. Any lower and it will be too acidic. The cat litter can be disposed of in normal trash. If you have compostable cat litter then you can put it in the compost. The acidic can be neutralized with lime or chalk
I didn't get d name of d gas drier you mentioned
sorry ignore my last comment; your process sequence is correct; my own over sight
No worries. Thanks for watching 😊
Sir, well don it's very good useful explanation about your project I wish you very mush success in it.
Greetings from Johan D. BELGIUM
Technical Engineer
Many thanks
Thank you so much for the video
Thanks for asking the question. I hope this video provided the information you wanted
@@GetMeOffGrid_ I planning to do biogas in big level I definitely take video and dedicate that video for you if iam successful, you are my inspiration.
I am happy that I can help people on their journey. That's really kind of you. Cheers
@@GetMeOffGrid_ Could you please let me know where are you from
Sure. I am from an area in the UK called the New Forest
Do you ever have to change the cat litter, water or steel wool?
Yes
A byproduct you will have from the steel wool will be moss killer, it'd be better to put the dryer after that if you can find a use for it.
However do check if your country still allows the use of it, the law in Denmark for example stands that you can use it but can no longer buy it.
That's interesting. I hadn't even thought about using the waste products from the steel wool. Cheers
This is interisting Idea, I want to create something like this in Philippines where I lived. Because it has a warm climate. And also I want to ask how to use biogas to generator, what generator is possible for biogas to turn into electricity.
Most generators can be used with biogas. Petrol generators can be adapted or you can use specailised gas powered generators.
How much methane percentage you get after purification. Try to check with biogas analyzer..
Hi. What is a biogas analyzer?
Hi, happy to see your video that actually searching for.
but is the entire project is still working? as what is the time you can use the methane after purifying by this method. What is your digester tank capacity?. Is CO2 can be removed by simply passing through the water without any pressure?
hope that you will answer me.
I was using this biogas 1Mcube capacity from 2010 onwards by putting kitchen waste only( 3-5kg)
If this is working will need to upgrade my biogas ..
Thanking you
Hi Navin. The CO2 can be removed by passing through just the water, yes. I would expect any biogas system to be pressurised from the tank towards the storage. It does not need to be pressurised more than that to use these scrubbers. The system will work continuously, you will need to change the water at some point as the water would get saturated with CO2 (that will become Carbonic acid). You will need to change the drying agent (silica or cat litter) when it gets saturated with water. You will also need to change the steel wool once that has all reacted with the H2S. You will be able to tell when the steel wool needs changing because it will be oxidised (turn brown). How long will this take? With a small digester like you have, it will be once at year or something like that.
@@GetMeOffGrid_ Thanks a lot Tom very much .i will definitely try when our lock down completes ... and will inform you....
@@GetMeOffGrid_I wonder if you could leave a suspended acid test strip in the water to be able to check the acidity. Or maybe a purple cabbage leaf.
.
Is the order of the scrubbers important?
You want to ensure that there is not moist gas leaving the scrubbers, so you could swap the iron wool and desiccant around.
Hi , what is the white material in the second cylinder (the moisture) .Is there alternatives easier to use ?
Check the description for more info
Can we used a soda lime sir instead of cat litter
?
Yes you could
stp la litière de chat est composer de quoi?
et le fait que tu utilise c'est comment?
It depends what type of cat litter you use. Clay and wood, normally. Things that are dry and will expand when made wet. It will remove the moisture from the gas.
Can you please tell me if this system works for acid fumes like nitric acid or bromine ? I want to install one to my fume hood but I am so confused, nobody can give me a clear answer. I would greatly appreciate an answer from you thanks !
I am not a chemist so not really familiar with those chemicals. A quick search on Google tells me that if you add lime to the water you can neutralize the nitric acid. Bromine looks like a much more complex chemical so you will have to your own research on that one.
@@GetMeOffGrid_ thank so much for replying, at least now I know it's possible for nitric acid but yes I'll continue my research.
thanks for your reply; when do you replace and/or how often do you replace the cat litter?
You will only need to change it when it has become saturated with water and therefore would not be able to absorb more moisture. When this is will depend on how much gas you are producing.
@@GetMeOffGrid_ thanks; great help; this project I am making will be the first in Qatar; hope I can do it right; I will share with you the complete process when it is completed; again thanks and bless you
another questin; Sequence of tanks; according to you; cat litter is used to dehydrate the gas; should'nt this be the last stage of the purification procsses; i.e. after the CO2 extraction tank ??
How soon should you change the water and all other stuff?
That would depend on the volume of gas you are producing. The material you use to dry the gas it relatively simple to tell, once it becomes saturated with moisture change it. For the water the easiest way to tell would be to check the pH if it has become more acidic than tap water you can change it. The iron wool will change colour, or rust so change it when it becomes mostly rusty. I hope that helps.
@@GetMeOffGrid_ thanks after this video there was no video about your biogas project
How's the progress so far, what were the solutions you applied since your last attempt to fill the Ballon failed
Curious to know.
@@samlenlap I am currently redoing the digester. It needs to be moved and I am going to make some changes to the design (adding a drain etc). This is taking a while unfortunately as I have been focusing on my other projects. I hope to get a video out in the next month on the biogas.
@@GetMeOffGrid_ looking forward to your future biogas videos
I wonder if using high ph water like giving the filter a calcium carbonate bottom with lots of strontium , would purify hydrogen sulfide well too
Interesting. What would you uses as the source of strontium. Can't say I've ever seen or heard it in the shops.
@@GetMeOffGrid_ aquarium stores have crushed coral that is high in strontium
Hello Sr. Please what are the three product you puted in the jars.
Firts:...?
Second:...?
Third:...?
1) Water 2) Cat litter (desiccant) 3) Iron wool
Where can I buy scrubbers like links please
You have to make them. That's why I made the video so you can see how to do it :-)
I believe you should be using Iron oxide as the scrubber agent for Hydrogen sulfide rather than the Iron metal found in steel wool. You can burn the wool to react the metal with air and form the oxide.