微污染期沉淀/气浮串联工艺的生产性试验研究  

Demonstration Project for Upgrading Water Treatment Plant by Combined Process of Sedimentation and Dissolved Air Flotation: Removal of Pollutants during Low Pollution Period

作　　者：时玉龙[1] 马军[1] 杨家轩[1] 翟学东[1] 曹平[2] 李爽 韩伟 王凤梅[2] 潘芹[2] 

机构地区：[1]哈尔滨工业大学城市水资源开发利用<北方>国家工程研究中心,黑龙江哈尔滨150090 [2]淮南首创水务有限责任公司,安徽淮南232001 [3]北京首创水务集团公司,北京100028

出　　处：《中国给水排水》2014年第1期34-37,42,共5页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07424-006)

摘　　要：将沉淀/气浮串联工艺应用到给水厂的升级改造中,并在淮河流域某水厂建成了处理能力为2×104m3/d的示范工程。对微污染期的处理效果进行了测定,除常规指标外,还分析了原水以及沉淀、气浮出水中颗粒物粒径分布及对不同粒径范围内颗粒物的去除特性。研究表明,当水厂原水处于微污染期时,沉淀/气浮强化常规处理工艺能有效削减污染物,并表现出较强的抗冲击负荷能力,对保障后续臭氧高级氧化工艺和生物活性炭滤池的正常运行发挥了重要作用。The combined process of sedimentation and flotation was developed to upgrade a conventional water treatment plant with a capacity of 20 000 m3/d. The operation results during the low pollution period were determined. The common water quality indexes, the particle size distribution in the raw water, settled water and flotation-treated water as well as the particles removal characteristics were analyzed. The combined process could effectively reduce pollutants during the low pollution period, show high resistance to impact loading, and play an important role to ensure normal operation of the subsequent O3/BAC processes.

关 键 词：水厂升级改造 斜管沉淀 平流气浮 微污染期 粒径分布 

分 类 号：TU991.2[建筑科学—市政工程]