氯胺的氧化助凝助滤效能  

EFFICACY OF OXIDATING COAGULATION AID AND FILTER AID OF PRECHLORAMINATION

作　　者：陈杰[1] 李圭白[2] 杨威[3] 陶辉[2] 

机构地区：[1]苏州立昇膜分离科技术有限公司,江苏苏州215152 [2]哈尔滨工业大学市政工程学院,黑龙江哈尔滨150090 [3]哈尔滨商业大学环境工程系,黑龙江哈尔滨150076

出　　处：《水处理技术》2006年第12期24-26,30,共4页Technology of Water Treatment

基　　金：国家高技术研究发展计划(863)项目(2002AA601140);黑龙江省自然科学基金资助项目(E200510);黑龙江省教育厅基金项目(10551093)

摘　　要：本研究以低温低浊水和高藻水为研究对象,通过烧杯搅拌试验和中试试验探讨了氯胺对地表水的氧化助凝效果。试验结果表明,采用预氯胺化工艺以后,沉淀出水(或气浮出水)以及过滤出水浊度明显降低;通过提高氯氮比可改善其助凝效果;同时滤后水中的颗粒总数大幅降低,过滤周期延长。Based on the actuality that contaminated raw water mostly contains high ammonia-N and a majority of water treatment plants use prcchlorination process in our country, the coagulating efficiency of chloramine as a coagulant aid was studied by Jar stirring and pilot-scale tests in low temperaturc and low turbidity water and higher algae water. The results showed that, compared with conventional treatment process, prechloramination process could apparently decrease the turbidity of settled water （or dissolved air flotation effluent water） and filtered water, and the coagulation-aid efficiency was enhanced with a higher ratio of chlorine （C12） to ammonia-N （N）. The particle counts in filtered water was decreased by 63.4%; filtrating period was extended by. 15.7% Moreover,the coagulation-aid mechanism ofprechloramination was investigated.

关 键 词：饮用水 预氯胺化 中试 浊度 颗粒数 过滤周期 

分 类 号：X703.5[环境科学与工程—环境工程]