摘要
广州市区水系发达 ,在城区布满了汇入珠江的大小河涌 16条 ,这些原本是泻洪和美化城市景观的重要河涌 ,如今由于城市的发展和污水处理的滞后 ,导致这些河涌都受到严重的污染 ,也导致珠江水的污染。作者在调查广州珠江河段及广州市河涌水质污染状况的基础上 ,在实验室模拟河涌建立了渠式混凝反应器 ,针对河涌污水的水质状况 ,对污水进行涌内处理的研究 ,结果表明 ,分段投加聚合氯化铝 ,渠式混凝沉淀 ,可以有效地改善城市污水。实验采取分段加药的方式 ,控制污水流速在 4 2 .2L/h ,CODCr的去除率比一次加药提高 15 % ,混凝后生成的絮体体积沉淀速度比一次加药提高近 2倍。
Based on investigating the water pollution status in municipal sewage canals,a new canal reactor of coagulation is designed in simulated canals in the laboratory. Adding drugs with canal coagulant precipitation can improve municipal sewage efficiently. The experimental results show when the drugs are added sectionally and the flow speed is controlled at 42.2 L/h,the removal rate of COD Cr is increased by 15% than the drugs were added at one time. The volume of sewage flocculant is nearly doubled.
出处
《工业水处理》
CAS
CSCD
2002年第5期30-32,共3页
Industrial Water Treatment
基金
广东省自然科学基金资助项目 (0 0 0 72 7)
