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公开(公告)号:US20130248443A1
公开(公告)日:2013-09-26
申请号:US13255007
申请日:2010-12-17
申请人: Jie Guan , Oijia Fu , Hong Zhou , Yan Jin , Weiqing Xu , Jungang Zhang , Yanping Liu , Minggang She
发明人: Jie Guan , Oijia Fu , Hong Zhou , Yan Jin , Weiqing Xu , Jungang Zhang , Yanping Liu , Minggang She
IPC分类号: C02F11/00
CPC分类号: C02F11/004 , C01B19/02 , C02F3/06 , C02F3/34 , C02F11/06 , C02F11/127 , C02F2101/106 , C02F2103/18 , C02F2303/16 , Y02W10/15
摘要: Wastewater, for example flue gas desulphurization blowdown water, containing soluble selenium is treated in a bioreactor. Microorganisms in the reactor reduce the selenium to elemental selenium, which is insoluble. The elemental selenium is discharged from the reactor in waste sludge also comprising biomass and other suspended solids. Non-microbial suspended solids are removed by way of acid dissolution followed by de-watering. The remaining sludge is burned at a temperature below the selenium oxidation temperature to remove biomass while leaving selenium particles behind.
摘要翻译: 在生物反应器中处理含有可溶性硒的废水,例如烟气脱硫排污水。 反应器中的微生物将硒还原成不溶性的元素硒。 元素硒在还包括生物质和其他悬浮固体的废物污泥中从反应器中排出。 非微生物悬浮固体通过酸溶解除去后除去。 剩余的污泥在低于硒氧化温度的温度下燃烧,以除去生物质,同时留下硒颗粒。