重污染期沉淀/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 High 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 廖斌[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》2013年第23期42-46,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：为满足国家新颁布的《生活饮用水卫生标准》的要求,需要对现有水厂进行升级改造。由于沉淀与气浮工艺在水质净化效能上具有一定的优势互补性,因此提出了基于沉淀与气浮串联的水厂升级改造技术,并在淮河流域规模为2×104m3/d的某自来水厂进行了工程示范,深入分析了在重污染期该工艺对各指标的去除效果。研究表明,该工艺能有效削减原水中污染物的浓度,并显现出较强的抗冲击负荷能力,对保障后续臭氧/生物活性炭工艺的正常运行发挥了重要作用。Conventional drinking water treatment processes currently used in most drinking water treatment plants in China need to be upgraded to meet the Standards for Drinking Water Quality （ GB 5749- 2006）. Sedimentation and dissolved air flotation have complementary advantages, thus a combined process of sedimentation and dissolved air flotation was developed to upgrade a 20 000 m^3/d drinking water treatment plant in the Huaihe River Basin. The removal effects of pollutants by the combined process during the heavy pollution period were investigated. The combined process could effectively reduce pollutants in raw water, showed high resistance to impact loading, and played an important role to guarantee 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 重污染期 总余铝含量 

分 类 号：X703[环境科学与工程—环境工程]