城市二级污水的工业回用  

Industrial retrieval utilization of second class urban sewage

作　　者：曾德勇[1] 

机构地区：[1]华能北京热电厂,北京100023

出　　处：《中国电力》2003年第4期38-41,共4页Electric Power

摘　　要：针对城市污水经处理后的工业利用问题,介绍华能北京热电厂近2年的城市污水工业回用情况,通过分析表明,城市二级污水经石灰深度处理后,主要水质指标满足循环冷却水补充水的水质要求;在浓缩2.0～2.5倍的情况下,循环冷却水系统铜材的腐蚀速度小于0.005mm/年,粘附速度30天小于10mg/cm2;有毒污染物基本不超过饮用水和生活用水标准,人体非直接接触的回用是安全的;制水成本为1.14元/m3,具有极大的经济效益和社会效益。In view of the industrial utilization problem of urban sewage after being treated,the paper briefs the industrial retrieval utilization situation of urban sewage in recent two years in Huaneng Beijing Cogeneration Power Plant.The analysis showed that,the main water guality indexes of second class urban sewage after being deeply treated with lime could satisfy the quality requirements of make-up water of circu-lating cooling water:in the condition of2.0～2.5times concentration,the corrosion rate of copper material in the circulating cooling water system was less than0.005mm/year,adhesion rate was less than10mg/cm 2 in30days;The toxic pollutants didn't basically exceed the stan-dard of drinking water and living water,the retrieval utilization for not directly contacted human body was safe;Cost of water preparation was1.14yuan/m 3 ,with big economic benefit and social benefit.

关 键 词：城市二级污水 污水处理 水质分析 工业回用流程 污水处理厂 

分 类 号：X703[环境科学与工程—环境工程]