The Air Flotation Thickening of Wasted Activated Sludge by Adding Collectors Used in Mineral Flotation
Two wasted activated sludges (WAS),from an industrial wastewater treatment and a sewage treatment plant respectively,and 7 collectors are used to investigate the feasibility of air flotation thickening of WAS by adding the collectors used in mineral processing.The collectors experimented include straight chain fat acids with different chain length,sodium oleate,alkyl sodium sulphonate,sodium dedecylsulfonate,and dodecylamine.The results show that the thickening efficiency varied depending on different collectors.Of the collectors experimented,dodecanoic acid and dodecylamine are best collector for thickening both sludges.
Collectors Dodecanoic acid Wasted activated sludge Air flotation thickening
T.C.Sun Z.G Cui J.Kou
Department of Environmental Engineering University of Science and Technology Beijing,Beijing,China
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
3501-3506
2008-09-24(万方平台首次上网日期,不代表论文的发表时间)