扬水曝气/生物接触氧化工艺的除藻效果研究  

Algae Removal Effect by Combined Process of Water-lifting Aeration and Biological Contact Oxidation

作　　者：周真明[1] 黄廷林[2] 丛海兵[2] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021 [2]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《中国给水排水》2007年第15期13-16,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2002AA601140)

摘　　要：研究了扬水曝气与生物接触氧化组合工艺对藻类的去除效果，考察了生物填料悬挂于水体的深度、距扬水曝气器的距离以及生物接触氧化反应器的水力停留时间（HRT）等因素对除藻效果的影响。试验结果表明：扬水曝气／生物接触氧化组合工艺对藻类的平均去除率为41．7％．对蓝藻、绿藻、硅藻的平均去除率分别为39．3％、23．7％、31．3％，对滦河源水中优势藻种——铜绿微囊藻的平均去除率为25．6％；生物填料可以悬挂在扬水曝气器周围25m、深度为0～3m的水体内，HRT以3h左右为宜。The algae removal effect by the combined process of water-lifting aeration and biological contact oxidation was studied. The influence of the main factors, including the submerged depth of biological media, the distance between biological medium and the water-lifting aerator and hydraulic retention time （HRT） of the biological contact oxidation reactor, on the algae removal effect was investigated. The experimental results show that the average removal rate of algae by the combined process is 41.7%,and the average removal rates of Cyanophyta, green algae, diatom and Microcystis aeruginosa are 39.3%, 23.7%, 31.3% and 25.6% respectively. The biological media can be suspended around the water-lifting aerator at 0 to 25 m and under water surface at 0 to 3 m, and the HRT should be controlled at about 3 h.

关 键 词：扬水曝气器 生物接触氧化 滦河源水 除藻 叶绿素A 

分 类 号：TU991.25[建筑科学—市政工程]