环境工程学报2012，Vol.6Issue(8)：2837-2840,4.
高铁酸钾预处理对活性污泥脱水性能的影响
Effect of pretreatment by ferrate potassium on activated sludge dewaterability
摘要
Abstract
Different dosages of ferrate potassium were added to the activated sludge to investigate the effects of ferrate potassium on sludge flocs characteristics and the dewatering indexes. Sludge flocs characteristics in- cluded particle sizes and the content of EPS. Dewatering indexes included sludge filtration （CST） and dewate- ring extent （solid extent of centrifugation）. The results show that pretreatment by ferrate potassium can change the structure of the sludge flocs and improve sludge dewatering extent. But it also increases the content of EPS, which affects adversely the dewaterability of the sludge. Fe （OH） 3 derived from the decomposition ferrate potassi- um can result in more flocculation of flocs and improve sludge settleabilitv.关键词
剩余活性污泥/高铁酸钾/污泥絮体Key words
excess activated sludge/ferrate potassium/sludge flocs分类
资源环境引用本文复制引用
冀海壮,叶芬霞..高铁酸钾预处理对活性污泥脱水性能的影响[J].环境工程学报,2012,6(8):2837-2840,4.基金项目
浙江省科技厅钱江人才计划项目 （）
