দেখুন কিভাবে পুকুরে একই সাথে মাছ ও সবজি চাষ করা হচ্ছে

#1.The Integrated Floating Cage Aquageoponics System (IFCAS) was developed as an aquaculture-horticulture based on the concept of integrated farming system approach firstly in Bangladesh in 2013 to produce fish and vegetables in floating condition where waste materials (fish feces and unused feed) from fish culture dissolved in the pond water and settled on the bottom mud are used for vegetables production.Of the newly adopted term aquageoponics, aqua, geo and ponics means water, mud/soil and cultivation, respectively. In fact, aquageoponics is a new version of traditional aquapoincs where soil is used as a medium instead of conventional media such as hydroton, pebbles, and sponges.
#2.Farmers had been drinking fresh groundwater from wells, whereas previously they had had to use ponds and mudholes which were contaminated with bacteria and viruses. However, the wells were also contaminated with naturally occurring high concentrations of poisonous arsenic, causing skin ailments and cancers. Awareness of the problem developed through the 1990s.
Allan Smith, an epidemiologist at the University of California at Berkeley, observed that the arsenic problem affects millions of people worldwide:
You can't see it or taste or smell it. The idea that crystal-clear drinking water would end up causing lung disease in 20 or 30 years is a little weird. It's unbelievable to people.[citation needed]
Hussam developed his filter after years of testing hundreds of prototypes. The final version contains 20 pounds of shards of porous iron, which bonds chemically with arsenic. It also includes charcoal, sand and bits of brick. It filters nearly all of the arsenic from the well water.