专利汇可以提供Treatment of waste water by microorganism专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain shudge which can easily be treated, by using, as pH controlling agent, calcium carbonate, magnesium carbonate, etc. in a biological treating method of organic matters-containing waste water to decompose the organic matters at a high rate.
CONSTITUTION: Waste water containing organic matters is treated by using microorganism in an active sludge process, a water spray filter bed process, etc. As the treatment proceeds, the pH falls. At least one selected from the group consisting of calcium carbonate, magnesium carbonate and magnesium hydroxide is contacted as pH controlling agent with the waste water. As compared with a neutralization process by using sodium hydroxide, the decomposition rate of the organic matters is increased, the amount of sludge formed is decreased, sludge which adheres to piping and walls of instruments can easily be removed, and surplus sludge settles satisfactorily.
COPYRIGHT: (C)1980,JPO&Japio,下面是Treatment of waste water by microorganism专利的具体信息内容。
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