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1. 发明公开

EP2104649A4 SYSTEM AND METHOD FOR ENHANCING AN ACTIVATED SLUDGE PROCESS 有权转让
标题翻译：系统VERFAHREN ZUR VERBESSERUNG EINES AKTIVIERTEN SCHLAMMVERFAHRENS
公开(公告)号：EP2104649A4
公开(公告)日：2012-07-18
申请号：EP08724459
申请日：2008-01-09
申请人： SIEMENS INDUSTRY INC
发明人： MARSTON PETER G , WOODARD STEVEN , WECHSLER IONEL
IPC分类号： C02F3/00 , C02F3/12
CPC分类号： C02F3/12 , C02F1/5236 , C02F1/56 , C02F2305/12 , Y02W10/15
摘要： A system for enhancing an activated sludge process that includes at least one aeration tank subsystem for receiving a flow a wastewater and for introducing dissolved oxygen to a population of microorganisms to promote growth of biological flocs in a mixed liquor defined by a concentration of mixed liquor suspended solids. A weighting agent impregnation subsystem includes an impregnation tank for mixing the mixed liquor, virgin weighting agent, and recycled weighting agent to impregnate the weighting agent into biological flocs suspended in the mixed liquor to form weighted biological flocs. A flocculant injection port located downstream from at least one aeration tank for introducing a flocculant to the mixed liquor for enhancing settling and thickening of the weighted biological flocs and for providing agglomeration of non-impregnated biological flocs and/or partially impregnated biological flocs with weighted biological flocs. At least one clarifier separates and collects the weighted biological flocs from the mixed liquor to provide a secondary effluent and a settled sludge. A return activated sludge subsystem recycles the majority of the settled sludge to the at least one aeration tank. A weighting agent recovery subsystem removes and shears the remaining settled sludge and recovers the weighting agent therefrom and reintroduces the weighting agent to the at least one aeration tank. A wasting subsystem wastes the remaining sludge of the weight agent recovery subsystem to control the population of the microorganisms in the mixed liquor.
摘要翻译：一种用于增强活性污泥工艺的系统，其包括至少一个曝气池子系统，用于接收废水流并将溶解氧引入微生物群体，以促进生物絮凝物在混合液中生长，所述混合液体由悬浮的混合液固体。加重剂浸渍子系统包括用于混合混合液的浸渍槽，原始加重剂和再循环的加重剂以将加重剂浸渍到悬浮在混合液体中的生物絮凝物中以形成加权的生物絮凝物。位于至少一个曝气池下游的絮凝剂注入口，用于将絮凝剂引入混合液中，以增强加权生物絮凝物的沉降和增稠，并提供非浸渍的生物絮凝物和/或部分浸渍的生物絮凝物与加权生物絮状物。至少一个澄清器从混合液中分离和收集加权的生物絮凝物，以提供二次流出物和沉降的污泥。返回活性污泥子系统将大部分沉降的污泥再循环至至少一个曝气池。加重剂回收子系统除去和剪切剩余的沉淀污泥并从中回收加重剂，并将加重剂重新引入至少一个曝气池。浪费的子系统会浪费重物质回收子系统的剩余污泥，以控制混合液中的微生物群体。

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