啤酒厂用过的硅藻土可作氮肥德国柏林工业大学．柏林啤酒酿造试验教学研究所最近的一项研究成果表明：啤酒厂用过的一种硅藻上是农业上一种很有价值的植物养料。现世界上许多啤酒厂采用干硅藻土作过滤辅助材料，用后严生大量硅质泥渣。这种硅质泥渣中的连机物质可缓慢地释... Brewery used diatomite for nitrogen fertilizer Berlin University of Technology. A recent study from the Institute for the Study of Beer Brewing in Berlin found that a diatom used in breweries was a valuable plant nutrient in agriculture. Many breweries in the world use dry diatomaceous earth as auxiliary material for filtration, and use a large amount of siliceous sludge after slashing. This siliceous sludge in the connected substances can be slowly released ...