三种投加方式化学强化BAF除磷的试验研究  

PHOSPHORUS REMOVAL BY BIOLOGICAL AERATED FILTER THROUGH THREE CHEMICAL METHODS

作　　者：李欣[1] 马营营[1] 董文艺[2] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]哈尔滨工业大学深圳研究生院,广东深圳518055

出　　处：《水处理技术》2011年第7期120-122,共3页Technology of Water Treatment

基　　金：国家"水体污染控制与治理"科技重大专项(2008ZX07317-02)

摘　　要：两级曝气生物滤池串联工艺对有机物和氮的去除效果较好,但除磷效果不理想,常采取化学强化除磷的方法来达到排放标准。分别研究了前置、同步、后置铁盐(FeCl3)化学强化BAF进行化学除磷的效果。结果表明,前置除磷效果最好,同步好于后置,但考虑到前置和后置都得增加沉淀池,所以同步强化也是一种较好的方法,能够使出水TP达标。Two-stage biological aerated filter process had a better removal of organic matter and nitrogen,but phosphorus removal is not effective,chemically enhanced phosphorus removal method is often adopted to achieve the standards.For this,the paper studied the pre-dosing,synchronization,post-dosing（FeCl3） chemically enhanced the effect of BAF for phosphorus removal.The results showed that： the best was pre-dosing,synchronization was better than post-dosing,but pre-dosing and post-dosing needed sedimentation tank,so synchronization was also a good way to meet TP effluent standards.

关 键 词：化学强化 曝气生物滤池 除磷 

分 类 号：X703.1[环境科学与工程—环境工程]