国内外污水污泥资源化利用技术

Sewage sludge contains a lot of organic matter, bacteria, heavy metals and other toxic and hazardous substances, it will result in ecological environment pollution and endanger human health if sewage sludge can't be proper handled. Otherwise, sewage sludge is rich in nitrogen, phosphorus, potassium and other substances that can be utilized, from the other hand, sewage sludge can be as a resource for utilization. So currently how to more scientific and effective treat and disposal sludge is a pressing problem at home and abroad. Sludge utilization technologies have made a lot of progress and significant achievements at home and abroad. To sum up, the way of sludge resource utilization contain: agricultural usage, energy usage, materials usage etc.