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Process for the reduction of the biochemical oxygen demand of sewage and for the recovery of the inherent protein

阅读:172发布:2021-12-15

专利汇可以提供Process for the reduction of the biochemical oxygen demand of sewage and for the recovery of the inherent protein专利检索,专利查询,专利分析的服务。并且THE BIOCHEMICAL OXYGEN DEMAND OF SEWAGE OF THETYPE OF MEAT, DIARY AND FERMENTATION WASTE, IS REDUCED BY ADDING TO THE SEWAGE AT LEAST 120 G./M.3 OF A WATER SOLUBLE ALUMINUM SALT OR BIVALENT OR TRIVALENT IRON SALT, 0.5 TO 1 FLI./M.3 OF BENTONITE OR KAOLIN AND 5 TO 10 G./M.3 OF POLYMERS OR COPOLYMERS OF ACRYLIC ACID-ACRYLIC AMIDE IN THE FORM OF AN AQUEOUS SOLUTION. THE SUSPENSION IS STIRRED AND THE PH ADJUSTED TO EXCEED 10 BY ADDITION OF A BASIC CALCIUM COMPOUND SUCH AS LIME MILK OR CALCIUM HYDROXIDE. THE PRECIPITATE THUS OBTAINED IS SEPARATED BY SETTING AND TRANSFERRED TO A CONICAL TANK FOR TREATMENT WITH CARBON DIOXIDE UNTIL THE PH IS NO HIGHER THAN 7, AND THE RESULTING PRECIPITATE IS FILTERED AND STERILIZED AT A TEMPERATURE ABOVE 130*C. UNDER PRESSURE, TO PRODUCE A BIOCHEMICAL CULTURE MEDIUM OR ANIMAL FEED.,下面是Process for the reduction of the biochemical oxygen demand of sewage and for the recovery of the inherent protein专利的具体信息内容。

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