重庆某污水处理厂出水发黄原因及应对措施研究  

Study on Effluent Yellowing and Countermeasures of a Sewage Treatment Plant in Chongqing

作　　者：诸力维 王同奎 王宇 周洋 邹蓉 张楷彬 刘晓 田爽 李晓林 Zhu Liwei;Wang Tongkui;Wang Yu;Zhou Yang;Zou Rong;Zhang Kaibin;Liu Xiao;Tian Shuang;Li Xiaolin(Chongqing Three Gorges Yufu Drainage Co.Ltd.,Chongqing 401133,China;College of Chemistry and Chemical Engineering,Southwest University,Chongqing 400715,China)

机构地区：[1]重庆市三峡鱼复排水有限责任公司,重庆401133 [2]西南大学化学化工学院,重庆400715

出　　处：《云南化工》2024年第1期104-107,共4页Yunnan Chemical Technology

摘　　要：污水处理厂出水的色度是排水水质的重要考察指标。重庆市某污水处理厂出水间歇性发黄,通过调查和实验分析得出,该厂出水发黄的原因是出水中锰离子浓度偏高,说明现有处理工艺无法实现对锰离子的有效去除。基于此,通过实验探究了出了在初沉池中添加适当的碳酸氢钠作为混凝剂,可以有效降低污水中锰离子的浓度。在锰离子浓度较高时,将源头水引入备用的初沉池,添加碳酸氢钠进行混凝处理,可有效降低了出水的色度。Effluent chromaticity is an important factor in sewage treatment industry.The cause of intermittent yellowing of effluent from a sewage treatment plant in Chongqing is investigated and analyzed.According to the investigation,it is found that the possible causes of effluent yellowing are sludge disintegration,high concentration of ammonia nitrogen and the presence of non-ferrous metal ions.According to our experimental analysis,the main reason is the existence of manganese ion,and the current sewage treatment technology cannot effectively remove manganese ion.Based on this,this work reports using sodium bicarbonate as coagulant in the primary sedimentation tank can effectively reduce the concentration of manganese ion and thus effectively reduce the effluent chromaticity.

关 键 词：污水处理 出水发黄 锰离子 混凝剂 

分 类 号：X703[环境科学与工程—环境工程]