摘要
在分析目前常见剩余污泥处置方式及其不足的基础上,通过实验对蚯蚓处理徐州市不同城市污水处理厂剩余污泥的效果进行了研究。结果表明,蚯蚓对纯生活废水的污泥处理效果最好,减量率高达79.99%;蚯蚓对不同类型污泥的有机质,N,P,Cu,Zn,Pb,Cd的含量均有不同程度的改善,说明这种方法可以很好的实现污泥的减量化、无害化和资源化,是一种非常有前途的污泥处理方法。
On the foundation of analysis of the current common residual sludge disposal methods and disadvantages, earthworm treatment effect of Xuzhou city sewage treatment plant sludge were studied through the experiment. The results showed that, the pure life wastewater sludge treatment works hest, with a reduction rate of 79.99%; earthworm on different types of sludge for nitrogen, phosphorus, organic matter, heavy metal copper, zinc, lead, cadmium content were improved to varying degrees, which means that this method can achieve a good sludge reduction, harmlessness and resources, so it＇s a very promising method for sludge treatment.
出处
《环境科技》
2012年第6期21-24,共4页
Environmental Science and Technology
关键词
蚯蚓
剩余污泥
处理
Earthworm
Surplus sludge
Treatment
