氯胺消毒工艺在郊区水厂的应用实践  

Applications and Practice of Disinfection Process with Chloramine in Suburban Water Treatment Plants

作　　者：张华军 

机构地区：[1]上海南汇自来水有限公司,上海201300

出　　处：《净水技术》2012年第4期61-65,共5页Water Purification Technology

摘　　要：该文介绍了上海浦东新区南汇地区郊区水厂的原水具有高耗氧量、高氨氮、季节性变化大的特点。通过在自来水制水工艺中增添加氨装置,控制沉淀池出水氨氮为0.5 mg/L左右;采用化合氯消毒后,可有效保证管网余氯稳定性和控制消毒副产物,但该方法也存在菌落总数检出率和色度升高及制水成本提高约0.008元/t的问题。Raw water of Nanhui district suburb water plant is of high concentration of CODMn and NH3-N with large seasonal variation. Ammonia dosing system was added in water treatment processes, which made effluent NH3-N maintain 0.5 mg/L at the outlet sedimentation tank. The results show this measure is helpful to ensure the residual chlorine stability in distribution network and lower the concentrations of disinfection by-products （DBPs）. However, water treatment cost increases by 0.008 RMB/t, removal rate of total bacteria count and color decreases after this measures is used.

关 键 词：氯胺 工艺 郊区水厂 消毒 

分 类 号：TU991[建筑科学—市政工程]