安徽农业科学2009，Vol.37Issue(22)：10648-10649,2.
反冲洗强度对生物活性滤池过滤效果影响
Influence of Backwashing Intensity on the Filtration Effect of Bioactive Filter
摘要
Abstract
[Objective] The purpose was to supply technical support for extending the filtration cycle of bioactive filter and enhancing its filtration effect. [Method] With water collected from Huangpu River as source water, water treated by conventional precipitation method as experimental influent, the bioactive filters with different filter material combinations such as active carbon-quartz sand and active carbon-haydite were used to study the influence of backwashing intensity on their filtration effect. [Result] After the bioactive filter was backwashed with low-intensity water, the consumption rate of dissolved oxygen in Filter 1 and 2 were 33.30% and 38.46% resp. after they had been running for 30 min and their consumption rates fluctuated around 37.80% and 42.10% resp. in 24 h. After the bioactive filter was backwashed with high-intensity water, the consumption rate of dissolved oxygen in Filter 1 and 2 did not reach 37.70% till they had been running for 240 min and their consumption rates were about 35.10% yet after 24 h. After the bioactive filter was treated by air-water backwashing, the consumption rate of dissolved oxygen in Filter 1 and 2 were 33.90% and 35.48% resp. after they had been operating for 120 min and their consumption rates fluctuated around 35.90% and 36.10% resp. in 24 h. After the bioactive filter was backwashed, their organic removal rates fluctuated around 13%. [Conclusion] The various washing methods had no obvious influence on the filtration effect of bioactive filter. About 40% backwashing water consumption could be saved by using air-water backwashing.关键词
反冲洗/生物活性滤池/有机物Key words
Backwashing/Bioactive filter/Organic matter分类
资源环境引用本文复制引用
王华,谭秋,吕锡武,杨开明..反冲洗强度对生物活性滤池过滤效果影响[J].安徽农业科学,2009,37(22):10648-10649,2.基金项目
西华大学人才引进基金(R0520439) （R0520439）
863计划国家重大科技专项(2002AA601130). （2002AA601130）
