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Eo, mùi gì kinh thế?
09 Nov, 2018
gạch làm từ nước tiểu
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The bio-brick was produced by students from Cape Town, who collected urine from specially designed male urinals (bô, bình đái, chỗ đi tiểu) at the university’s engineering building and mixed it with sand and bacteria.
Bio-bricks are made in moulds (khuôn) at room temperature (nhiệt độ phòng), removing the need for high temperature kilns. Nitrogen and potassium, which are crucial for commercial fertilisers, are created as by-products during the process.
...Bio-bricks are created through a natural process called microbial carbonate precipitation, said Randall, similar to the way seashells are formed. Loose sand, which has been colonised with bacteria that produces urease, is mixed with the urine. Urease breaks down the urea in the urine, producing calcium carbonate, which cements the sand into shape.
While regular bricks are kiln-fired at temperatures of 1,400C and produce large amounts of carbon dioxide, the bio-bricks do not require heat.
Bài trước: Thân thật
Tags: funny
"Sh*t house"?