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1. 发明授权

US5569385A Food processing effluent rendering process and apparatus 失效
标题翻译：食品加工流出液生产过程及装置
公开(公告)号：US5569385A
公开(公告)日：1996-10-29
申请号：US340331
申请日：1994-11-14
申请人： Lynda C. O'Carroll , Colm D. O'Carroll , Alan Jones , Marilyn T. Matlock , Roderick D. McLeod
发明人： Lynda C. O'Carroll , Colm D. O'Carroll , Alan Jones , Marilyn T. Matlock , Roderick D. McLeod
IPC分类号： C02F1/56 , C02F1/54
CPC分类号： C02F1/56
摘要： A process for the rendering of an effluent stream from a food processing plant, in which the effluent has or is made to have an acidic pH and carries proteinaceous material. The effluent is contacted with an inorganic coagulant (clay) that together with the acidic pH effectively neutralizes ionic charges on the proteinaceous material to cause the proteinaceous material to precipitate out of solution. The effluent stream is contacted with a biologically derived polymeric flocculant to facilitate settling of the precipitated proteinaceous material as flocs. The inorganic coagulant is present in an amount by weight of at least 1.5 times or 2.5 times the amount by weight of polymeric flocculant. Flocs are removed from the effluent stream to thereby render the effluent stream. A biologically derived co-flocculant is added to the effluent stream after contact with the effluent stream by coagulant and flocculant. Insoluble salts of alkaline earth metals are added to the effluent stream after contact with the effluent stream by coagulant and flocculant. The process may be applied to unit operations within the food processing plant. Apparatus for floc treatment include a mixing and acidity settling tank, a conical settling vessel with baffled outlet, a floc seed supply for effluent entering the settling vessel, an effluent diffuser at the inlet to the settling vessel and an agitator set to delay agitation until floc settles in the settling vessel.
摘要翻译：一种用于从食品加工厂提供流出物流的方法，其中流出物已经或被制成具有酸性pH并携带蛋白质材料。流出物与无机凝结剂（粘土）接触，与酸性pH一起有效中和蛋白质物质上的离子电荷，使蛋白质物质沉淀出溶液。流出物流与生物衍生的聚合物絮凝剂接触以促进沉淀的蛋白质材料作为絮凝物沉降。无机凝结剂的存在量为聚合物絮凝剂重量的至少1.5倍或2.5倍。从流出物流中除去絮凝物，从而使排出物流。在通过凝结剂和絮凝剂与流出物流接触后，将生物衍生的共絮凝剂加入流出物流中。通过凝结剂和絮凝剂与流出物流接触后，将碱土金属的不溶性盐加入流出物流中。该方法可以应用于食品加工厂内的单元操作。用于絮凝处理的设备包括混合和酸度沉淀池，具有带挡板的出口的圆锥形沉降容器，用于进入沉降容器的流出物的絮状种子供应源，沉降容器入口处的流出物扩散器和用于将搅拌延迟至絮凝物的搅拌器落在沉降船上。

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