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AABR (Anaerobic Baffled Reactor)-compound type MBR (Membrane Biological Reactor) integrated device and method for treating organic wastewater

An organic wastewater, composite technology, applied in water/sludge/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. Membrane fouling, reducing energy consumption, optimizing the effect of aeration

Active Publication Date: 2015-04-29
POWERCHINA ZHONGNAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of ABR reactors and membrane bioreactors (MBR), the effluent water quality after treatment of medium and high concentration organic wastewater cannot meet the "Urban Sewage Recycling and Utilization of Urban Miscellaneous Water Quality" (GB / T18920-2002) and " Comprehensive sewage discharge standard "(GB8978 1996) secondary standard

Method used

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  • AABR (Anaerobic Baffled Reactor)-compound type MBR (Membrane Biological Reactor) integrated device and method for treating organic wastewater

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0039] Example 1. The amount of treated water: 200m of a biopharmaceutical wastewater 3 / d.

[0040] Influent water quality: COD: 2000~2700mg / L, BOD: 500~700mg / L, NH 3 -N: 130-160 mg / L, TP: 4-6 mg / L, SS: ≤200 mg / L.

[0041] Design parameters: The AABR reaction tank is divided into three compartments, the first compartment is an anoxic section, and the second and third compartments are anaerobic sections. The volume of each compartment is the same, the width ratio of the downflow chamber and the upflow chamber is 1:4, and the angle of the baffle is 45°. The residence time of the anoxic section is 6h, the residence time of the anaerobic section is 12h, and the residence time of the composite MBR reaction tank is 16h.

[0042] Equipment selection: submersible mixer power 0.3KW, MBR membrane module adopts curtain type hollow fiber membrane module, model FP-AⅣ, elastic packing specification: φ200×1500, blower power: 3kw, sludge / mixed liquid return pump power 2.2kw, The power of...

example 2

[0046] Example 2, the amount of treated water: 1000m of sugar beet wastewater 3 / d.

[0047] Influent water quality: COD: 5000~6000mg / L, BOD: 2000~2800mg / L, NH 3 -N: ≤50mg / L, SO 4 2- : 350~600mg / L, SS: 1000~4000mg / L.

[0048] Design parameters: The AABR reaction tank is divided into three compartments, the first compartment is an anoxic section, and the second and third compartments are anaerobic sections. The volume of each compartment is the same, the width ratio of the downflow chamber and the upflow chamber is 1:4, and the angle of the baffle is 45°. The residence time of the anoxic section is 6h, the residence time of the anaerobic section is 24h, and the residence time of the composite MBR reaction tank is 20h.

[0049] Equipment selection: submersible mixer power 1.5KW, MBR membrane module adopts curtain type hollow fiber membrane module, model FP-AⅣ, elastic packing specification: φ200×1500, blower power: 15kw, sludge / mixed liquid return pump power 4kw, output Th...

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Abstract

The invention discloses an AABR (Anaerobic Baffled Reactor)-compound type MBR (Membrane Biological Reactor) integrated device and a method for treating organic wastewater. In order to realize standard-reaching treatment of organic wastewater with middle and high concentrations, the integrated device comprises a compound type MBR reaction tank provided with fillers and an MBR membrane assembly; the water outlet end of the compound type MBR reaction tank is communicated with a water production tank; the water inlet side of the compound type MBR reaction tank is provided with an AABR reaction tank communicated with a water inlet pipe; the AABR reaction tank comprises an anoxic section and multi-grade anaerobic tanks; the anoxic section and the multi-grade anaerobic tanks are internally provided with vertically-arranged baffle plates; the mud outlet end of the compound type MBR reaction tank is communicated with the anoxic section and a first-grade anaerobic tank respectively; the water inlet pipe is communicated with the anoxic section and the first-grade anaerobic tank in the multi-grade anaerobic tanks of the AABR reaction tank respectively. According to the AABR-compound type MBR integrated device, an ABR (Aerobic Baffled Reactor) is improved into an AABR and a form of a reversed A / A / O (Anaerobic / Anoxic / Oxic) nitrogen and phosphorus removal process is composed of the AABR and the compound type MBR reaction tank, so that organic matters with the middle and high concentrations are degraded and the nitrogen and phosphorus removal is also realized.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an "AABR-composite MBR" integrated device for treating organic wastewater and a wastewater treatment method. Background technique [0002] The ABR reactor has a built-in vertical deflector, which divides the reactor into several reaction chambers in series, and each reaction chamber is a relatively independent upflow sludge bed (UASB) system. Although ABR can be regarded as a simple series connection of multiple UASBs in terms of structure, it is significantly different from a single UASB in terms of process. ABR is closer to the plug-flow process. Each reaction chamber can domesticate and cultivate microbial communities that are compatible with the water quality and environmental conditions of the sewage flowing into the reaction chamber, resulting in the separation of the acid-producing phase and the methane-producing phase of the anaerobic reaction, which is conducive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 徐巍禹芝文李勇陈湘斌贺前锋
Owner POWERCHINA ZHONGNAN ENG
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