重庆合川污水处理厂Orbal氧化沟工艺的优化改造研究  

OPTIMIZATION AND TRANSFORMATION OFORBALOXIDATION DITCHINCHONGQINHECHUAN SEWAGE TREATMENT PLANT

作　　者：郝丽岭 罗斌 余波 吴晓林 吉方英[2] 

机构地区：[1]重庆市合川排水有限公司 [2]重庆大学城市建设与环境工程学院,重庆400520

出　　处：《水处理技术》2015年第7期128-130,共3页Technology of Water Treatment

基　　金：水体污染控制与治理科技重大专项(2013ZX07314)

摘　　要：为解决厌氧池污泥沉积严重、氧化沟充氧不足、脱氮效率低等问题,合川污水处理厂分别对厌氧池结构、氧化沟内曝气系统进行了改造,增加了厌氧池搅拌系统和氧化沟内回系统。工程实践表明,改造后出水COD、NH3-N、TN、TP均值分别是24、1.63、14.7、0.52 mg/L,有效提高了系统的硝化、反硝化及生物除磷效果;处理每千方污水除磷剂投加量节约2.5 kg和电能消耗节约12 k Wh。To solve some problems that exit in Hechuan sewage treatment plant, such as the serious sludge deposit in anaerobictank, adequate oxygenation of Orbaloxidationditch and low efficiency of nitrogen removal, a series of technical reform is carried out, including the modification of anaerobictank＇s structure and aerationsystem within oxidationditch. It has been found by engineeringpractice that, afier the technical reform, the average effluent COD, NH3-N, TN, TP are 24 mg/L, 1.63 mg/L, 14.7 mg/L, 0.52 mg/U The effect of nitrification, denitrification and biological removal phosphorus is obviously improved, and this will save 2.5 kg phosphate removing agent dosage and 12 kWh powerconsumption per thousand square sewage.

关 键 词：城镇污水处理厂 ORBAL氧化沟 技术改造 脱氮除磷 节能降耗 

分 类 号：X703.1[环境科学与工程—环境工程]