首页> 外国专利> A PROCESS FOR ELIMINATION OF COLOR, ODOR AND REDUCTION OF BIOLOGICAL OXYGEN DEMAND (BOD) AND CHEMICAL OXYGEN DEMAND (COD) OF DISTILLERY EFFLUENTS

A PROCESS FOR ELIMINATION OF COLOR, ODOR AND REDUCTION OF BIOLOGICAL OXYGEN DEMAND (BOD) AND CHEMICAL OXYGEN DEMAND (COD) OF DISTILLERY EFFLUENTS

机译：消除废水中颜色，气味和减少生物需氧量（BOD）和化学需氧量（COD）的方法

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摘要

The present invention relates to a process for removal of color, odor and reduction in Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) of a distillery effluent, said process comprising the steps of; adding to the distillery effluent one or more alkali metal salts and/or one or more alkaline earth metal salts with alkali hydroxide to from a precipitate, separating the precipitate thus formed and optionally, repeating the above process one or more time till the effluent contains less than 8 to 9 % of total solid content and the color of supernatant is light yellow. To the supernatant, alum and alkali is added to form a precipitate entrapping remaining inorganic / organic impurities and thereby formed a substantially colorless, odorless effluent subjected to filtration using filtering media to obtain substantially colorless odorless treated effluent having low value of COD and BOD.

机译：本发明涉及一种去除颜色，气味并降低蒸馏厂废水的生物需氧量（BOD）和化学需氧量（COD）的方法，所述方法包括以下步骤：将一种或多种碱金属盐和/或一种或多种碱土金属盐与碱金属氢氧化物一起添加至蒸馏出物中，以从沉淀物中分离出如此形成的沉淀物，并任选地重复上述过程一个或多个时间，直到流出物中所含的盐含量降低为止。固体含量的8-9％，上清液的颜色为浅黄色。向上清液中添加明矾和碱以形成沉淀物，截留残留的无机/有机杂质，从而形成基本上无色，无味的流出物，使用过滤介质对其进行过滤，从而获得具有低COD和BOD值的基本上无色的无味处理后的流出物。

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公开/公告号IN212473B

专利类型
公开/公告日2008-02-15

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申请/专利号IN60/CHE/2004
发明设计人 BAHUBALI GUNDAPPA NAGAVI;VENKATACHALA SREENIVASA DATTAMUTHY;SETHU MADHAVA SAMEERA;HOSAKOTE GURUMALLAPPA SHIVAKUMAR;
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申请日2004-01-27
分类号C02F11/14;
国家 IN
入库时间 2022-08-21 20:07:18

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