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.
出处
《中国给水排水》
CAS
CSCD
北大核心
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)
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
upgrading of water treatment plant
inclined tube settler
horizontal flotation
low pollution period
particle size distribution
