专利汇可以提供Backwash method for functional membrane专利检索,专利查询,专利分析的服务。并且PURPOSE: To backwash and remove even clogging soluble salt in a membrane and make the life of the membrane longer without increasing differential pressure so much as in the backwash method with water or chemical solution and without damaging the membrane by using vapor as backwash medium and permeating the same from one surface side to the other surface side of a functional membrane.
CONSTITUTION: For instance, in the treatment of high conductive waste liquid from an atomic power station, waste liquid is heated by an evaporation can 2, introduced into a membrane demister 5 through a gas-liquid separator 4 to remove mist. Only clean vapor permeates a membrane 6 and is condensed in a condensor 7. When a functional membrane 6 is backwashed, vapor without impurities generated in a vapor generator is introduced into a membrane demister 5 through a valve 10 to wash the membrane 6. The backwashed and permeated vapor is condensed in a condensor 11 and stored in a backwash water receiving tank 12, while the backwash waste liquid is fed into an evaporation can 2 through a pump 13 and a valve 14 and condensed.
COPYRIGHT: (C)1989,JPO&Japio,下面是Backwash method for functional membrane专利的具体信息内容。
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