Rotating Membrane Bio-Airlift Loop Reactor

Abstract

The invention relates to an MBR membrane bioreactor for treating sewage and wastewater and particularly relates to a rotary membrane biological gas lift recirculation reactor. A water suction pump, a self-sucking pump and an electromagnetic pneumatic pump are arranged outside a reactor body; sewage flows into the reactor body under the action of the water suction pump; a membrane filtering device is arranged in the reactor body and comprises membrane components, a frame body, a rotary joint and aerator pipes; the membrane components are fixedly mounted at two ends of the frame body respectively; the frame body and the membrane components are driven to rotate by the rotary joint; the self-sucking pump is connected with a water inlet of the rotary joint through a hose; pipes on two sides of the frame body are water producing pipes; the water producing pipes on the two sides are connected with different water producing openings of the rotary joint through hoses; the electromagnetic pneumatic pump is connected with a gas inlet of the rotary joint; the aerator pipes penetrate through two ends of each membrane component; and the aerator pipes are connected with different gas outlets of the rotary joint respectively through hoses. According to the rotary membrane biological gas lift recirculation reactor, the equipment energy consumption is reduced, and the maintenance cost is lowered.

Description

technical field [0001] The invention relates to an MBR membrane bioreactor for treating sewage and waste water, in particular to a rotating membrane biogas-lift circulation reactor. Background technique [0002] Water pollution and water resource shortage have become major global environmental problems, and water pollution control and recycling technologies are increasingly valued by countries. my country's water resource shortage and water pollution are particularly serious, so it is particularly important to develop efficient water regeneration and reuse technologies. Membrane Bio Reactor (MBR for short) is a high-tech water treatment developed at the end of the 20th century. The outstanding advantages of good water quality, small footprint, low sludge output, and convenient operation and management are increasingly being valued and applied in the fields of sewage treatment and water recycling. [0003] Due to the high-efficiency retention of membranes, membrane bioreact...

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Problems solved by technology

In the process of operation, in order to maintain the membrane flux, membrane fouling is often removed by regular air and water backwashing, drug soaking, etc. The derivative problem brought about by this maintenance process is that compared with conventional biochemical treatment, the membrane bioreactor The energy consumption of the process is high, and the maintenance cost is high in the later stage. How to solve this contradiction is a difficult problem that scholars and engineers participating in the research in the industry are facing.

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