An o/a integrated membrane biological treatment device based on the amount of micro-anaerobic sludge and a method for treating sewage using the device

Abstract

The invention discloses an A / O integrated membrane biological treatment device based on microanaerobic sludge quantity and a method for treating sewage by using the device, and relates to the field of sewage treatment. The device comprises an aerobic zone, a micro sludge quantity anaerobic zone, a precipitation tank, an aeration tray, a membrane module, an electric flocculation device, a sewage buffer storage tank, a purified water storing tank, a water-charging pump, an aeration pump, a circulating pump, a reflux pump and a self-priming pump. A use method comprises the following steps: firstly, opening the aeration pump and an aeration valve for continuously aerating; secondly, filling the aerobic zone with activated sludge, performing nitration reaction treatment, performing denitrification reaction on the micro sludge quantity anaerobic zone, removing phosphorus by the electric flocculation device, removing phosphorus by the membrane module in an intensified manner, and removing nitrogen and small particulate matters. The device disclosed by the invention also has the characteristics of small occupied area, convenience in use, high treatment efficiency and the like, and is more suitable for being installed and used on a ship; the device accords with or is superior to discharge standards, stipulated by a new IMO convection, of domestic sewage in nitrogen and phosphorus effluent indicators. The device and the use method thereof disclosed by the invention are suitable for treating sewage.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an O / A integrated membrane biological treatment device based on the amount of microanaerobic sludge and a method for treating sewage by using the device. Background technique [0002] With the rapid growth of population and the rapid development of shipping industry, the marine environment has been challenged unprecedentedly. In recent years, due to the substandard discharge of domestic sewage from ships, the marine and river environments have gradually deteriorated. In order to protect limited marine resources, countries around the world are taking active and effective measures to prevent and reduce marine pollution from ships. The IMO.MEPC.227(64) resolution passed by the Marine Environment Protection Committee of the United Nations National Maritime Organization on October 1, 2012, carried out the discharge standard of the IMO.MEPC.159(55) resolution passed on October 13, 2006...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low treatment efficiency, poor stability, large occupied area of ​​equipment, low removal rate of nitrogen and phosphorus, and serious pollution of membrane modules in the existing sewage treatment device, the present invention proposes a method based on the amount of microanaerobic sludge. / A integrated membrane biological treatment device and method of using the device to treat sewage

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