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.
出处
《中国给水排水》
CAS
CSCD
北大核心
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)
关键词
扬水曝气器
生物接触氧化
滦河源水
除藻
叶绿素A
water-lifting aerator
biological contact oxidation
Luanhe River source water
algal removal
chlorophyll a
