On site waste water Installer/inspector here! The ships sewage treatment system you described is just like a system we install all over Washington state! It’s called a NuWater, even has a “sludge return” that sends sludge from the clarifier back into the trash tank! Pretty neat the similarities household systems have with large maritime systems.
A long time ago we figured out proper filtration of water and at this point it's been perfected to a point where it's basically the same process for the same type of wastewater. If you do filter gray water it will be a different process more often than not.
NCL has documentary videos on their cable channel on how they recycle their waste water. Every crew have to attend training seminars on how to properly dispose of our waste water on the ship. There are sinks and drains with signs warning not to dispose chemicals. Since those pipes goes direct to waste water recycling. If you ask for free potable water water or ice. That water is either desalinated or recycled from grey water. But that water also has to pass through a 3 stage water filter on the water fountain dispenser and ice machine.
John Adamski the data given in this was incorrect. Majority of consumed water is recycled. Pool water, AC function, drinking and washing water is all a combination of Watermaker Desalination system, or recycled treated water.
Unlike feces, pee is generally sterile*, so basically it's just water with some organic compounds. In that sense it's actually cleaner for the environment than bath water, which contains lots of artificial chemicals, surfactants in particular. Edit: okay since people seem to have a problem with me saying "pee is generally sterile", let me clarify: I'm not recommending you use pee as disinfectant, and in fact I am most likely technically incorrect. I am saying that in the context of waste water treatment, pee is not very harmful to the environment when compared to bath water. There are billions of Fish in the oceans that pee all the time. But fish don't use shampoo, at least as far as we know.
Such projects are engineering marvels. It's fascinating what humans can accomplish. They're building future floating cities so this technology is vital for future survival
Cute how he thinks pretentious feel good little laws actually mean shit in international waters lmao specially when cruises always foreign register ships or go to other jurisdictions to avoid retard EU shit. Such a naive infant.
This video should be shown to everyone who believes blackwater is discharged untreated... Your voice is so calming and the topics you pick are so sensible. I'm definitely subscribing
@@cazw179 Carnival are totally falling apart lately. Emissions problems, machinery problems, staff problems and fines - it's a wonder people still sail with them.
@@runarandersen878 - I last sailed in the Navy about 10 yrs ago discharge regulations are nothing new they are however all geographically based and in certain areas of the oceans it's technically legal to dump that doesn't mean ships discharge raw sewage in these areas treatment technology is by no means complicated
Fascinating stuff. It's very interesting to see how it's treated. During years of RVing we became very familiar with black and grey water, although the systems merely store the waste until it can be responsibly disposed of.
Great video! I'd like to point out that according to MARPOL Annex IV, the discharge of untreated sewage is allowed beyond 12 nmi from the nearest land outside of special areas (Baltic Sea for passenger ships). In theory this means that a passenger ship crossing the Atlantic can discharge raw untreated sewage directly to the sea at a moderate rate. Cargo ships can discharge raw sewage even in the Baltic with the 12 nmi rule. There are also problems with sewage treatment plants as recent studies indicate that in many cases they do not function as they should due to technical or operational reasons. This means that there are cases where raw sewage is discharged right in front of our beaches. The discussions regarding this issue are ongoing at the IMO.
They should add a class in school called : TH-cam Where you can just search youtube for anything school safe and educational to your own liking for the hour. Would be easy to pay attention, and the amount of cool stuff you could randomly learn in a year would be far more useful than the garbage shit and homework you are givin in other courses.
@l atleast this here video, was fun though. school is neither fun nor useful. and besides, through youtube and the internet in general, people of course, DO learn things more valuable than "where does it go on ships"
I always assumed a sewage tank. I know the Olympic Class liners had a large fresh water tank for sinks, toilets, etc. Still, I can't wait to see how ships do it. Edit: I see I wasn't that far off
The Olympic Class liners I'm sure just dumped it overboard, no treatment at all. Back then there weren't really any regulations on such. I don't think even land-based sewage was typically treated back then. The fresh water tanks may have been because it was cheaper just to carry it on board than to run desalinization at the time, if they even had that ability at all.
@@NorthWestern1919 Yes, carrying it aboard from land rather than producing it through desalinization as modern ships do. Given the limitation of carrying it on board, I'd imagine the toilets probably used seawater?
@@quillmaurer6563 oh, toilets, the pool, and even all bathrooms used seawater. there were small systems to desalinize water but they weren't very efficient
There are several other methods and systems for this. This is just an examplary one. Not all sewage treatment plants work this way. For those who wonder what happens to the oil coming especially from galley sinks; there are also grease traps in these systems
I love love love love love this video. The voice how it was so calming and relaxing, and the actual video of how it discharges into the water actually being more fresher than most water is mesmerizing.
Great video, I had no idea they filtered before it went into the sea, just thought the greywater/bathwater was a-ok and the blackwater was stored until docking. Very cool to see though.
Regulation 11 - Discharge of sewage 1 Subject to the provisions of regulation 3 of this Annex, the discharge of sewage into the sea is prohibited, except when: .1 the ship is discharging comminuted and disinfected sewage using a system approved by the Administration in accordance with regulation 9.1.2 of this Annex at a distance of more than 3 nautical miles from the nearest land, or sewage which is not comminuted or disinfected at a distance of more than 12 nautical miles from the nearest land, provided that, in any case, the sewage that has been stored in holding tanks shall not be discharged instantaneously but at a moderate rate when the ship is en route and proceeding at not less than 4 knots; the rate of discharge shall be approved by the Administration based upon standards developed by the Organization; or .2 the ship has in operation an approved sewage treatment plant which has been certified by the Administration to meet the operational requirements referred to in regulation 9.1.1 of this Annex, and .2.1 the test results of the plant are laid down in the ship's International Sewage Pollution Prevention Certificate; and .2.2 additionally, the effluent shall not produce visible floating solids nor cause discoloration of the surrounding water. 2 The provisions of paragraph 1 shall not apply to ships operating in the waters under the jurisdiction of a State and visiting ships from other States while they are in these waters and are discharging sewage in accordance with such less stringent requirements as may be imposed by such State.
The "settlement" chamber is actually flocculation, which is the process of using a flocculant such as aluminum sulfate, which binds loose particals within the water and makes them dense enough to sink, leaving pure water on top
Both actually. Big storage tanks, which can be filled from the shore, but they also use waste heat from the engines to make fresh water all the time the ship is running too.
Modern vessels usually have an onboard desalination plant where they can take in sea water, and remove salt and other contaminates to make it same for consumption it use in toilets, showers, sinks, etc
I also would have guessed they use sea water. Instead of carrying huge amount of water. I also guess for some small islands, using their water to fill a large cruise ship would not be good because of the amount.
Mostly sea water itself. Then using something like "reverse osmosis" which basically removes the salt, to put it the simplest way possible. That being said, when vessels spend more time in port or shallow anchorages it's not possible to get sea water so some reserve must be on board, depending on the size of the vessel and the demand. It's not rare that vessels take fresh water from the shore, depending on the area they are trading and the effectiveness of their water treatment facilities on board.
Some vessels even had a dehumidifier to deal with the stuff that's too dense. Where they dry it and turn it into either a chunky powder or compress it into bricks. That can then easily be send to an incinerator when the ships goes to shore :)
*I've always wondered this. My two theories had been that they either flush it right into the ocean or they recycle it (after I found out that some ships even have desalination plants). Well this video explains it better. Thanks.*
I have been on that ship in the thumbnail, it's the pacific jewel and it was owned by P&O cruises but has since Been handed over, to zen cruises and is now called Karnika and I was on it in June of 2018, reply on my comment if you were on it at that same time. Beautiful ship really! Plz like my comment!
Tampons are not supposed to be flushed, neither domestically nor on ships. Of course many women ignore this which causes damage to the sewerage system.
Andy Theber A solar minimum? I think you mean a solar maximum, that‘s the dangerous one. A large solar storm could destroy most of our technology, and then there you are. No infrastructure to support so many people anymore => hunger, thirst, resource wars => population reduction.
Toilets on ships use far less water than domestic toilets. Less than 1 litre per "flush." "flush" because, although it wasn't mentioned in this video, the system actually uses a vacuum to suck the waste through the pipes. Each toilet has a valve in the U bend, flushing cycles the valve. Only a little water needed.
@@forestdenizen6497 Oh, it's correct. I even saw a documentary on a lady who had even her bowels sucked out of her body because she flushed while still seated.
I find this stuff absolutely fascinating - on NCL Escape a few years ago, they told us that the water expelled back into the ocean was the quality of drinking water - absolutely blew my mind!
This is exactly what I used to design. I used to be the process engineer for Wartsila. What you described was a standard sewage treatment plant, where most tankers, cargo vessels and old cruise liners have. The newer cruise liners usually use a more advanced type using MBR or MBBR technology due to the more stringent IMO 227.64 including section 4.2. I'd be happy to explain further if you're interested.
Do ferries just use regular storage tanks and then empty them at the harbours? I'm talking about ferries that do relatively short journeys, up to 20 hours, let's say. I'm interested in this because I live in Tallinn which has a very busy harbour at around 10 milion passengerys annually, most of them travel between Tallinn and Helsinki, some between Tallinn and Stockholm. The rest (approx half a million) are cruise tourists.
@@Rebasepoiss It depends on a lot of variables including space, the amount of water that is required to be stored and how much the ports charge to accept the wastewater. For those sort of ferries it would easiest to just store the water until they get to the port. However after a cost analysis it might be more financially viable to put a simple sewage treatment plant on.
@@StrongAsHouses Still can't imagine it should be all that expensive I would expect the bulk of the cost for it would simply be compensating the port for their sewage bill along with a small fee to oversee the transfer process since I presume that is probably what most ports do is just dump it into the municipal wastewater system of the nearby city.
All ships have an FW generators which A unit used for conversion of seawater into fresh water by vacuum distillation based on evaporation and condensation. Single-stage freshwater generator consists of a chamber with two titanium plate packs acting as an evaporator and a condenser respectively. A vacuum of 85-95% is maintained in the system by a brine/air ejector. Seawater evaporates at a temperature of approximately 40°C due to the vacuum condition as it passes between the plates of evaporator heated by hot fresh water from the engine jacket cooling system, or by steam. Generators can be equipped with disinfection units (Chlorination, UV-radiation and Silver ionization), pH-adjustment and rehardening filters.
Thumbs up if you've ever been on a cruise ship! I've been on a cruise ship once, it was the Carnival Cruise ship that went from Long Beach to Baja California.
There are classes about this in my area. Not about how cruise ships work, but about how sewer plants work. I remember going on a field trip to ours when I was in grade school. Now, I work there and we still do tours for classes of all ages. From grade school all the way through university. He didn't touch on it, but those little bacteria do another equally impressive thing while digesting the waste. They produce methane. This methane is then used to fuel generators to produce 'green' electricity. If you're interested in learning more about it. Do a search for 'wastewater cogeneration'. At my plant we process an average 7 MGD (million gallons per day) everyday. Like in the video, the water being discharged is often cleaner than the body of water it's going into. We are able to show this by sampling above and below our discharge point in the river. If you can, I recommend taking a tour through your local treatment facility. There are a number of different ways that they operate. Often, it's determined by the scale of the operation. Not to mention, it's always good to see what you are paying for.
Nice vid mate, and cool info. Looking forward that in the future you can explain to us how the Boeing Jetfoil works. That is when you have time. Anyways, I'll be waiting. and again, cool vid...
Word on the street is, they put stuff in the food (stool softener) to prevent wear and tear on the pipes. But you didn't hear it from me (cruise ship musician with 9 years experience) haha.
i literally read a comment on a different video talking about how they wanted to learn how cruise ship toilets work. 30 minutes later and it’s in my recommended.
"Captain, the ballasts are too low. The ship is destabilizing."
"Call the kitchen. We're serving burritos tonight."
Haha number one comment
Burger King is now selling tacos for $1!
😂😂😂😂😂
Jack sparrow: Get taco bell on the line!
🤣🤣🤣🤣😆😆😆😂😂
When you think the bacteria are working but they really are living a life of opulence and luxury by their standards
i mean if giving those little buggers a life of luxury is so useful to us then it's hella worth it lmao
They're first class passengers onboard of cruise ships, makes total sense to me.
🦠
Bacteria: "Dis sum good shit!"
Jesus loves you all very much repent and believe onto Him and be saved from eternal punishment of sin amen, Jesus DIED for you
On site waste water Installer/inspector here! The ships sewage treatment system you described is just like a system we install all over Washington state! It’s called a NuWater, even has a “sludge return” that sends sludge from the clarifier back into the trash tank! Pretty neat the similarities household systems have with large maritime systems.
A long time ago we figured out proper filtration of water and at this point it's been perfected to a point where it's basically the same process for the same type of wastewater. If you do filter gray water it will be a different process more often than not.
I'm binge watching these because these are very very pleasing to the eye, easy to understand, and very informative!
Keep up the amazing work!
I got a test tomorrow but I find this interesting rather than studying xD
Disinformation from the Cruise industry Do some real research.
Furry!
this is all fine and dandy until someone waffle stomps a turd down the shower
WHAT?!
WHAT ARE THEY DOING WITH WHAT?!
True......true
Luckily not everyone is doing it the turd has already been broken down at that point its going to go the greywater system.
What about when you have really bad diarrhea and your bum hole gets sore? The best comfort for that is taking a poo in a gentle warm shower.
"The bowels of the ship". Nice little ending :-)
Lol!!
Good to the last drop
Fish loves grey water...shit happens
K-M: Ehrenworth all rights reserved
K-M: Ehrenworth all rights reserved.
Qqqqqq
‘’TH-cam recommendations has brought us together again.”
did you already saw video about restoring old soviet chainsaw?
Shit is a binding agent.
You got a «shitty» recommendationlist
You edited this comment yet you still misspelled brought
Salt Salt don’t get jealous
I have been on a 160,000 ton, over 5000 passengers. Always been curious about what they do with waste water.
NCL has documentary videos on their cable channel on how they recycle their waste water.
Every crew have to attend training seminars on how to properly dispose of our waste water on the ship. There are sinks and drains with signs warning not to dispose chemicals. Since those pipes goes direct to waste water recycling.
If you ask for free potable water water or ice. That water is either desalinated or recycled from grey water. But that water also has to pass through a 3 stage water filter on the water fountain dispenser and ice machine.
Chris Bautista great id like a whisky on the rocks made from shit.
they make soup with it
John Adamski the data given in this was incorrect. Majority of consumed water is recycled. Pool water, AC function, drinking and washing water is all a combination of Watermaker Desalination system, or recycled treated water.
It goes right into the ocean who are they kidding...
I'm a seafarer myself and I can say this guy knows what he's talking about. very entertaining channel mate. new sub here
5:43 it's not just clean, it's miracle water. It brought those fish back from the dead.
Hahahaha
😂😂😂
Lol
I'm pretty sure some of the Gray water has pee in it considering some people pee in the Shower.
Unlike feces, pee is generally sterile*, so basically it's just water with some organic compounds. In that sense it's actually cleaner for the environment than bath water, which contains lots of artificial chemicals, surfactants in particular.
Edit: okay since people seem to have a problem with me saying "pee is generally sterile", let me clarify: I'm not recommending you use pee as disinfectant, and in fact I am most likely technically incorrect. I am saying that in the context of waste water treatment, pee is not very harmful to the environment when compared to bath water.
There are billions of Fish in the oceans that pee all the time. But fish don't use shampoo, at least as far as we know.
Waffle stomp 😂
@@brettunderwood7291 Don't you start. My god the images that story put in my brain.
Doesn’t everyone do that?
What about period blood dripping out in the shower? Gonorrhea pee? That crap is NOT sterile...😑
nice...
And you *Liked* it. ;)
Such projects are engineering marvels. It's fascinating what humans can accomplish.
They're building future floating cities so this technology is vital for future survival
You didnt have to watch it
@@shadowxxe but we made her.
Cute how he thinks pretentious feel good little laws actually mean shit in international waters lmao specially when cruises always foreign register ships or go to other jurisdictions to avoid retard EU shit. Such a naive infant.
This video should be shown to everyone who believes blackwater is discharged untreated...
Your voice is so calming and the topics you pick are so sensible. I'm definitely subscribing
Will Jolliff : I think for some ships this is still the case. But luckily new restrictions keep coming.
Watched a programme recently that stated Carnival are the worst and have been fined millions for dumping waste oil. Thanks to a whistleblower.
@@cazw179 Carnival are totally falling apart lately. Emissions problems, machinery problems, staff problems and fines - it's a wonder people still sail with them.
@@waverleyjournalise5757 My last experience with Carnival was back in 2003.
That did it for me. lol
@@runarandersen878 - I last sailed in the Navy about 10 yrs ago discharge regulations are nothing new they are however all geographically based and in certain areas of the oceans it's technically legal to dump that doesn't mean ships discharge raw sewage in these areas treatment technology is by no means complicated
Fascinating stuff. It's very interesting to see how it's treated. During years of RVing we became very familiar with black and grey water, although the systems merely store the waste until it can be responsibly disposed of.
Fun fact: Titanic and her sister ships just discharged waste water into the sea.
😒 Disappointed. Should have been rooting for iceberg instead of Leo.
oh shit
I mean did people really think about the environment at that time
Well... the Titanic discharged everything on the ship into the sea.
@@williammahony9347 and that's why, we now have IMO.
So when the ships hull is compromised by either running aground or hits an iceberg it's appropriate to yell, Oh sheeeit...
Store
High
In
Transit
@@josephjackson1956 R/woosh?
@@josephjackson1956 ohhhhhhhhh
@@abdelkadersenouci3108 lol
No shit
Those little bacteria are the unsung heroes of the cruise ships.
🤣🤣
They're the unsung heroes everywhere. It's basically the same system in sewage treatment plants everywhere on the planet.
I don’t really like poop jokes, but it is a solid number two.
Why don't they put the sewage treatment system on the "poop deck."
-_-
Just leave get out
Lol!
That's good. Love it 😊
Great video! I'd like to point out that according to MARPOL Annex IV, the discharge of untreated sewage is allowed beyond 12 nmi from the nearest land outside of special areas (Baltic Sea for passenger ships). In theory this means that a passenger ship crossing the Atlantic can discharge raw untreated sewage directly to the sea at a moderate rate. Cargo ships can discharge raw sewage even in the Baltic with the 12 nmi rule.
There are also problems with sewage treatment plants as recent studies indicate that in many cases they do not function as they should due to technical or operational reasons. This means that there are cases where raw sewage is discharged right in front of our beaches. The discussions regarding this issue are ongoing at the IMO.
Eeeewwwwwwww!!!
…it's dried and served as chocolate-waffles next morning.
Jesus christ...
Straight to the soft serve machines
@@HerpDerpNV Tom Carvel poops just like the machine.!
I wish I was taught at school like this, it would make it much more interesting
Yeah at least we have internet. My be like how do you know all this type of stuff. I be like I'm smart lol. It just be TH-cam tho.
They should add a class in school called : TH-cam Where you can just search youtube for anything school safe and educational to your own liking for the hour. Would be easy to pay attention, and the amount of cool stuff you could randomly learn in a year would be far more useful than the garbage shit and homework you are givin in other courses.
This is literally what we learned in school lol
You will straight go to poran hub after this
@l atleast this here video, was fun though. school is neither fun nor useful. and besides, through youtube and the internet in general, people of course, DO learn things more valuable than "where does it go on ships"
Loving the sound affects of the bacteria :')
I always assumed a sewage tank. I know the Olympic Class liners had a large fresh water tank for sinks, toilets, etc. Still, I can't wait to see how ships do it.
Edit: I see I wasn't that far off
The Olympic Class liners I'm sure just dumped it overboard, no treatment at all. Back then there weren't really any regulations on such. I don't think even land-based sewage was typically treated back then. The fresh water tanks may have been because it was cheaper just to carry it on board than to run desalinization at the time, if they even had that ability at all.
@@quillmaurer6563 The fresh water tanks were only there to supply water to sinks and showers.
@@NorthWestern1919 Yes, carrying it aboard from land rather than producing it through desalinization as modern ships do. Given the limitation of carrying it on board, I'd imagine the toilets probably used seawater?
@@quillmaurer6563 Yes, I think so, but I'm no expert on the Olympic class.
@@quillmaurer6563 oh, toilets, the pool, and even all bathrooms used seawater.
there were small systems to desalinize water but they weren't very efficient
There are several other methods and systems for this. This is just an examplary one. Not all sewage treatment plants work this way. For those who wonder what happens to the oil coming especially from galley sinks; there are also grease traps in these systems
2:36 this is a diesel room of the german submarine U-995, not a sewage system
I knew this looked more like a engine than a sewage treatment system
What's the difference amiright
I don't even know if it's a joke
He didn’t say it was a sewage system. He literally said “down in the engine room” and showed s picture of an engine room.
Everyone's done all the jokes, so i'll just say that was an interesting and well crafted video.
One more...
Roses are red,
Violets are blue...
Now I really know my number two. 💩👌
best joke yet
It’s at 420 likes I won’t like it
Yup
Spoiler: it drains in a tank that feeds the drinking water.
I knew this would end badly
It's all just water under the boat.
@@stormtrooper7177 www.reddit.com/r/woooosh
tl:dw
Lol good job
Hi... Great video.... Can you mention which software u use for these amazing animations ?
I use the Adobe suite, but any motion graphics software would do it
@@CasualNavigation thanks for your reply
I love love love love love this video. The voice how it was so calming and relaxing, and the actual video of how it discharges into the water actually being more fresher than most water is mesmerizing.
3:50
sorry for the guy who has to clean those filters
Don't feel sorry for him, he makes a fortune recycling condoms and recovering the bits of gold from dentures.
Cruise ship worker, especially the technical ones like the one that work in the water treatment department, is paid extremely well.
Great video, I had no idea they filtered before it went into the sea, just thought the greywater/bathwater was a-ok and the blackwater was stored until docking. Very cool to see though.
Help. This channel is way underrated
A N I M E
N
I
M
E
Nice Review! Always Wondering what happens to the waste on ships! There is so much going on on a Cruise Ship. Incredible.👍🏿
Brown thumbs up 🤣
Regulation 11 - Discharge of sewage
1 Subject to the provisions of regulation 3 of this Annex, the discharge of sewage into the sea is prohibited, except when:
.1 the ship is discharging comminuted and disinfected sewage using a system approved by the Administration in accordance with regulation 9.1.2 of this Annex at a distance of more than 3 nautical miles from the nearest land, or sewage which is not comminuted or disinfected at a distance of more than 12 nautical miles from the nearest land, provided that, in any case, the sewage that has been stored in holding tanks shall not be discharged instantaneously but at a moderate rate when the ship is en route and proceeding at not less than 4 knots; the rate of discharge shall be approved by the Administration based upon standards developed by the Organization; or
.2 the ship has in operation an approved sewage treatment plant which has been certified by the Administration to meet the operational requirements referred to in regulation 9.1.1 of this Annex, and
.2.1 the test results of the plant are laid down in the ship's International Sewage Pollution Prevention Certificate; and
.2.2 additionally, the effluent shall not produce visible floating solids nor cause discoloration of the surrounding water.
2 The provisions of paragraph 1 shall not apply to ships operating in the waters under the jurisdiction of a State and visiting ships from other States while they are in these waters and are discharging sewage in accordance with such less stringent requirements as may be imposed by such State.
Me: what a dumb question...
Me,2 seconds later: this is actually a pretty good question
I just love hearing him say “water”
You’re videos are well done. I don’t go on cruises but I find marine engineering interesting.
join the navy and be an engineer youll hate it :^)
Be smart and become a merchant sailor. Youll either love it or hate it
“Hopefully you enjoyed today’s topic” it was a bit shit.
All jokes aside, interesting video.
*Imagine the maintenace the engine crew make to that tanks and pumps to keep it running, as an engineer it is more like a hell*
It warms my heart to hear popular TH-cam channels use places like "Glastonbury" to guage populations ❤️ great to hear some places I recognise!
I just got off a cruise today from the Bahamas and been wondering this the whole trip 😂😂😂
Mikayla Blevins 😆lol
Is this the only time where someone is actually wondering and stumbles across this guy’s video about it?
Ask them if they make people drink the treated water.
Bacteria be eating yo shit!!! 🤣🤣🤣🤣
Me too I sat in my cabin and pondered that thought the whole trip.!
Why am I up at 1am watching a video about sewage on a ship...
"Yes"
It happens
It is something you need to consider next time you are planning to build a cruise ship.
At least you're watching something educatory and not some random crap
Weird that it all showed up on our feed at 1am ... it’s 1am here too 😳
Submarine's engine room @ 2.35. I learned about sewage treatment systems at nautical college 40 years ago.
Do NOT flush if you see bubbles in the water lol
I found this video a year ago and for some reason this is my favorite video on this channel
What do you do as a not-youtube job?
You know so much about naval architecture, design, and function, as an amateur sailor I am very impressed!
The "settlement" chamber is actually flocculation, which is the process of using a flocculant such as aluminum sulfate, which binds loose particals within the water and makes them dense enough to sink, leaving pure water on top
Where does the water come from? A huge tank filled at the port or do they purify sea-water during the cruise?
Both actually. Big storage tanks, which can be filled from the shore, but they also use waste heat from the engines to make fresh water all the time the ship is running too.
Modern vessels usually have an onboard desalination plant where they can take in sea water, and remove salt and other contaminates to make it same for consumption it use in toilets, showers, sinks, etc
I also would have guessed they use sea water. Instead of carrying huge amount of water. I also guess for some small islands, using their water to fill a large cruise ship would not be good because of the amount.
Mostly sea water itself. Then using something like "reverse osmosis" which basically removes the salt, to put it the simplest way possible. That being said, when vessels spend more time in port or shallow anchorages it's not possible to get sea water so some reserve must be on board, depending on the size of the vessel and the demand. It's not rare that vessels take fresh water from the shore, depending on the area they are trading and the effectiveness of their water treatment facilities on board.
Fresh water generator(evaporater)
Came to understand what ships do with sewage water. Come out knowing the basics of sewage treatment, instructions super clear?
The toilet flush works as a vacuum. Very powerful on my last cruise I lost two loo brushes and my underpants.
Some vessels even had a dehumidifier to deal with the stuff that's too dense. Where they dry it and turn it into either a chunky powder or compress it into bricks. That can then easily be send to an incinerator when the ships goes to shore :)
Wow pounding in my head so much knowledge i don't need
LOL
"they don't dump it into the sea"... "then they eject it into the ocean"
It's all down to the speed of the disposal 😉
@@stormtrooper7177 like diarrhoea!
They don't "just" dump it into the sea ;)
Remember to flush twice, people. For stability!
I've flush 3 time, 1 before using and 2.time after using it.
Perich29
Same here😂😂
Perich29 why what the point
Why would you do that
These sorts of videos are so educational it is better than watching the soaps on what I call normal TV
Thank you very much. Good stuff. No padding, just information. Excellent.
Hi sir
I had this doubt what they do with waste water.. Now i got good idea from this video..
Thanks for another informative video...🙏👍😊
Good video as always and good channel, well done.
water + flip-flops = gray water
woah, the more the know!
this channel is the reason I don’t sleep
Very entertaining and fun to watch. Thanks for posting this.
*I've always wondered this. My two theories had been that they either flush it right into the ocean or they recycle it (after I found out that some ships even have desalination plants). Well this video explains it better. Thanks.*
In the old days we just stuck our bum out of a port-hole!
You deserve a lot more subscribers!
I never thought
Poop in cruise ships was so interesting
Fascinating! I had never thought about this until it popped up in TH-cam. Great explanation.
Apparently people in India actually take dumps in the shower (as well as the street) so hearing that grey water isn't treated as well is kinda scary.
StrykerV8//// 3rd World Countries are NASTY AND DISGUSTING!!!! GOOD LUCK GETTING YOUR TOILET TO FLUSH IN MOST EUROPEAN COUNTRIES!!!!!
@@ezrabrooks12 have you never heard of waffle stomp? 😂😂
@@royisdabest ... I'm curious, but I suspect that I shouldn't google that...
@@giin97 stomping a stool aka shit down the drain aka waffle
@@giin97 deficating in the shower than try to stomp it down with your foot
It truly is how uncanny ships are to actual living beings.
Good analogy: except they don't reproduce, nor grow.
Sophie same thing with cars
0:10 been on her , Pacific Dawn and Pacific Jewel 😁 she certainly ain’t small at 70000 tonnes it’s just that others are bigger now
Pacific Jewel is now the Karnika
well small by todays standards
shadowXXe I agree nowadays some cruise ships have more people than my town 😂😂
Ace Roane I know 😔
been on the jewel twice and i got lost so easily on the first few days
This video is much better than the "What happens before you flush the toilet on a cruise ship" video.
I have been on that ship in the thumbnail, it's the pacific jewel and it was owned by P&O cruises but has since Been handed over, to zen cruises and is now called Karnika and I was on it in June of 2018, reply on my comment if you were on it at that same time. Beautiful ship really!
Plz like my comment!
Captain, not sure why but I can't stop laughing at the animated tampons!
Tampons are not supposed to be flushed, neither domestically nor on ships.
Of course many women ignore this which causes damage to the sewerage system.
40-50 gallons of water a day for average person? He hasn't met my kids!!
your spoilt darlings will go extinct with the rest of us, don't worry
Im Irish so we drink more beer than that daily.
Andy Theber A solar minimum? I think you mean a solar maximum, that‘s the dangerous one. A large solar storm could destroy most of our technology, and then there you are. No infrastructure to support so many people anymore => hunger, thirst, resource wars => population reduction.
Toilets on ships use far less water than domestic toilets. Less than 1 litre per "flush."
"flush" because, although it wasn't mentioned in this video, the system actually uses a vacuum to suck the waste through the pipes. Each toilet has a valve in the U bend, flushing cycles the valve. Only a little water needed.
@@forestdenizen6497
Oh, it's correct. I even saw a documentary on a lady who had even her bowels sucked out of her body because she flushed while still seated.
Coincidentally, I’m watching this as I’m dropping a 💩
@may day lmao
Same
Same
Same here
*You barbarian*
Great job on this video very well spoken, I’ve wondered for years what happened to human waste on ships. Well done.
I find this stuff absolutely fascinating - on NCL Escape a few years ago, they told us that the water expelled back into the ocean was the quality of drinking water - absolutely blew my mind!
ok ive never hit the notification faster
Great now I know where my Dad went after he went to the toilet on our Caribbean Cruise 10 days ago
That's Hot anthem of the seas?
This is exactly what I used to design. I used to be the process engineer for Wartsila. What you described was a standard sewage treatment plant, where most tankers, cargo vessels and old cruise liners have. The newer cruise liners usually use a more advanced type using MBR or MBBR technology due to the more stringent IMO 227.64 including section 4.2. I'd be happy to explain further if you're interested.
Do ferries just use regular storage tanks and then empty them at the harbours? I'm talking about ferries that do relatively short journeys, up to 20 hours, let's say. I'm interested in this because I live in Tallinn which has a very busy harbour at around 10 milion passengerys annually, most of them travel between Tallinn and Helsinki, some between Tallinn and Stockholm. The rest (approx half a million) are cruise tourists.
@@Rebasepoiss It depends on a lot of variables including space, the amount of water that is required to be stored and how much the ports charge to accept the wastewater. For those sort of ferries it would easiest to just store the water until they get to the port. However after a cost analysis it might be more financially viable to put a simple sewage treatment plant on.
@@StrongAsHouses Still can't imagine it should be all that expensive I would expect the bulk of the cost for it would simply be compensating the port for their sewage bill along with a small fee to oversee the transfer process since I presume that is probably what most ports do is just dump it into the municipal wastewater system of the nearby city.
Basically it is stored at the bottom helping the ships stability.
How is this so relaxing? Great video, learnt a lot.
Bacteria: So Jerry, what's on the drink menu for tonight?
Jerry (Bacteria): Oh, ya' know... The liquid extractions from poop.
All ships have an FW generators which A unit used for conversion of seawater into fresh water by vacuum distillation based on evaporation and condensation. Single-stage freshwater generator consists of a chamber with two titanium plate packs acting as an evaporator and a condenser respectively. A vacuum of 85-95% is maintained in the system by a brine/air ejector. Seawater evaporates at a temperature of approximately 40°C due to the vacuum condition as it passes between the plates of evaporator heated by hot fresh water from the engine jacket cooling system, or by steam. Generators can be equipped with disinfection units (Chlorination, UV-radiation and Silver ionization), pH-adjustment and rehardening filters.
Instructions not clear took a cruise and I forgot to poop now I’m being SHIPED off to the hospital 😂
Hahahaha
Not funny didn’t laugh
R Ip well that is unfortunate
I love your videos ! you make every topic interresting!
Thanks Lionel
Did we miss "bacteria in the bowels of the ship?" Very clever
Gee that's what I always wanted to know. I always wondered how toilets work on a cruise ship. LOL
I enjoyed this a lot
Same, good to know that ships aren't that dirty
Interesting and informative. Thank you.
Thumbs up if you've ever been on a cruise ship!
I've been on a cruise ship once, it was the Carnival Cruise ship that went from Long Beach to Baja California.
@Harvey Logan Mine was Ensenada as well, it is in Baja California.
There are classes about this in my area. Not about how cruise ships work, but about how sewer plants work. I remember going on a field trip to ours when I was in grade school. Now, I work there and we still do tours for classes of all ages. From grade school all the way through university.
He didn't touch on it, but those little bacteria do another equally impressive thing while digesting the waste. They produce methane. This methane is then used to fuel generators to produce 'green' electricity. If you're interested in learning more about it. Do a search for 'wastewater cogeneration'.
At my plant we process an average 7 MGD (million gallons per day) everyday. Like in the video, the water being discharged is often cleaner than the body of water it's going into. We are able to show this by sampling above and below our discharge point in the river.
If you can, I recommend taking a tour through your local treatment facility. There are a number of different ways that they operate. Often, it's determined by the scale of the operation. Not to mention, it's always good to see what you are paying for.
Every so often, you hear about a ship getting caught with a "magic valve"- dumping waste directly to the sea.....
Some does have but most don't
@@endraruhendri6550 - The fines are too steep and people lose their licenses when caught.
Shout out from Glastonbury! That’s caught me by surprise 😂😂😂
"bowels of the ship"... I see what you did there :D
Thanks for this info. I just watched a news about cruise ships and got me thinking of this
Great video. Very informational
Very interesting 😀👏👏
Nice vid mate, and cool info. Looking forward that in the future you can explain to us how the Boeing Jetfoil works. That is when you have time. Anyways, I'll be waiting. and again, cool vid...
Cheers Mike - I already have it on my list.
I wonder what happens to all the hummm waste 😵💩💩on the plane
it is shot into space by an Elon Musk rocket, what else?
Word on the street is, they put stuff in the food (stool softener) to prevent wear and tear on the pipes. But you didn't hear it from me (cruise ship musician with 9 years experience) haha.
i literally read a comment on a different video talking about how they wanted to learn how cruise ship toilets work. 30 minutes later and it’s in my recommended.
Carnival just dumps wherever... Yes, they've been caught and fined accordingly
We have a composting toilet on our sailboat. I wonder if that system could be scalable to work on a larger ship?