METHOD AND SYSTEM FOR REMOVING PHOSPHORUS BY GASIFICATION
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United States of America Patent
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May 22, 2017
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Sep 1, 2015
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A method for removing phosphorus by gasification, the method including: a) providing a membrane bioreactor including a reaction tank and a membrane separation system; b) aerating the reaction tank to control a redox potential in the reaction tank to be higher than −200 mV; and c) controlling the dissolved oxygen concentration around the membrane separation system to be greater than 0 and smaller than 2 mg/L and the dissolved oxygen concentration in the reaction tank excluding the membrane separation system to be greater than 0 and smaller than 1 mg/L, and allowing the dissolved oxygen concentration around the membrane separation system to be higher than the dissolved oxygen concentration in the rest zones of the reaction tank. A phosphorus removal system by gasification includes: a reaction tank, a membrane separation system, a water production system, an aeration system.
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