PROCESS FOR PURIFICATION TREATMENT OF WASTEWATER A

专利名称：PROCESS FOR PURIFICATION TREATMENT

OF WASTEWATER AND APPARATUS FORPURIFICATION TREATMENT OFWASTEWATER

发明人：Kenichi USHIKOSHI,Toru MORITA,Masao

KOMATSU,Teizo MIZUTANI

申请号：US14765088申请日：20140630

公开号：US20150368130A1公开日：20151224

专利附图：

摘要：A process for purification treatment of wastewater according to the presentinvention is a process for conducting a purification treatment of wastewater containingpolyvinyl alcohol by using a membrane bioreactor process, the process including addinga nutrient to a treatment system. The nutrient is preferably added to an aeration tank.The nutrient preferably contains nitrogen. An amount of the nutrient initially added ispreferably 5% or more and 25% or less in terms of nitrogen. The process for purificationtreatment of wastewater preferably includes a step of measuring a nitrogen contentafter a treatment, and an amount of the nutrient added is preferably adjusted on thebasis of the result of this measurement while checking the effect on the basis of achemical oxygen demand. The nutrient may be added to the aeration tank by amechanism that adds the nutrient to the treatment system or by feeding the nutrientmanually to the treatment system.

申请人：SUMITOMO ELECTRIC INDUSTRIES, LTD.

地址：Osaka-shi, Osaka JP

国籍：JP

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