Novel low energy consumption integrated A2/O-MBR reactor

Abstract

The invention provides a low energy consumption integrated A2 / O-MBR reactor. The reactor is structurally characterized in that two groups of guide plates are symmetrically arranged at the center of a reaction tank body, a vertical section of a region sandwiched between the guide plates is inverted funnel-shaped, and an aerobic zone (comprising a membrane unit zone and an aeration zone) is formed at the center, and descending zones (namely anaerobic / anoxic zones) are formed at two sides; the aeration energy can be sufficiently utilized, the hydraulic scouring effect on the membrane surface is improved, and the sufficient hydraulic circulation can be obtained by the aerobic zone or between the anaerobic / anoxic zones; the water circulating flow between the aerobic zone and the descending zones can be well adjusted through an exchange flow control valve; the nitrogen and phosphorus removal capacity of the reactor can be greatly improved, the aeration amount can be reduced by 50% or above; and meanwhile, the total aeration amount can be reduced by more than 50% by adopting the simple variable aeration technology of a power-driven three-way valve; through the superposition of the above technologies, the aeration amount can be reduced to 20-30% of the original aeration amount; therefore, the reactor has the characteristics of high efficiency in nitrogen and phosphorus removal, small floor area and low energy consumption.

Description

technical field [0001] A new low-energy integrated A2 / O-MBR reactor, involving an optimized configuration of the MBR reactor, which makes full use of the aeration energy, which is used not only for scouring the membrane surface but also for the anaerobic zone, anoxic zone and oxygen consumption zone. The hydraulic circulation in the zone can not only greatly improve the denitrification and phosphorus removal capacity of the reactor, but also reduce the aeration rate by more than 50%. At the same time, the variable aeration technology can reduce the overall aeration rate by more than 50%. , the aeration rate can be reduced to 25-30% of the original, so the new low-energy integrated A2 / O-MBR reactor has the characteristics of high-efficiency denitrification and phosphorus removal, small footprint and low energy consumption. The invention belongs to the technical field of sewage treatment, in particular to an integrated membrane bioreactor. Background technique [0002] Membra...

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Problems solved by technology

The principle of airlift circulation and the application of H circulation pipe can replace the pump to return sludge, which greatly reduces energy consumption; however, the biological reaction tank and the membrane filter tank are set up separately, and the environmental conditions required for denitrification and phosphorus removal cannot be formed structurally. Phosphorus removal can only be solved by pre-installed anaerobic ponds and anoxic ponds. The energy consumption problem has been alleviated to a certain extent, but it has not been solved to a great extent.

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