稀土元素对活性污泥影响的初步研究  

Preliminary Study on Effects of Rare Earth Elements on Activated Sludge

作　　者：胡勤海[1] 楼雪松 叶兆杰[1] 

机构地区：[1]浙江农业大学环保系

出　　处：《稀土》1996年第3期44-46,共3页Chinese Rare Earths

摘　　要：初步研究了稀土元素镧（Ｌａ）、铈（Ｃｅ）、镨（Ｐｒ）、钕（Ｎｄ）及其混合物对活性污泥生长的影响。结果表明，５０ｍｇ／Ｌ浓度以上的稀土元素对活性污泥生长有明显的影响，表观变色上浮；显微可见菌胶团疏松分散，原生动物个体游离。Effects of rare earth elements (La, Ce, Pr, Nd, and their mixture) on activated sludge were studied preliminarily. The results show that the rare earth elements(≥50mg/L) affect obviously activated sludge. The sludge changed in colour and floated in appearance. It could be seen that zoogloea were loosed and protozoan was free under a microscope.

关 键 词：稀土元素 活性污泥 原生动物 废水处理 

分 类 号：X132[环境科学与工程—环境科学] X703