CN101955296A

CN101955296A - Membrane active carbon bioreactor (MACBR) with sedimentation basin

Info

Publication number: CN101955296A
Application number: CN2010102180782A
Authority: CN
Inventors: 申克勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2011-01-26

Abstract

The invention relates to a membrane active carbon bioreactor (MACBR) with a sedimentation basin and discloses a water treatment technology for treating organic pollutant effluents by the combination of microorganisms, a sedimentation basin, activated carbon and an ultrafiltration membrane. By utilizing the combination of the microorganisms, the sedimentation basin as well as the activated carbon and the ultrafiltration membrane in a membrane pond, higher treatment efficiency, longer membrane service life, lower energy consumption and cleaner treating water can be obtained.

Description

The film activity charcoal bio-reactor MACBR of band settling tank

Technical field:

A kind of water technology that utilizes microorganism, settling tank, gac and ultra-filtration membrane that high density hardly degraded organic substance pollutant effluents such as sanitary sewage, slaughterhouse water, dyeing waste water, textile waste are handled.Processing intent is to make treating water reach national specified discharge standard or reuse standard.

Background technology:

Membrane bioreactor (MBR) is a kind of efficient water technology that development in recent years is got up.For keeping high efficiency processing power, traditional membrane bioreactor is thought under the isolation of film, need not to keep settling tank again, and muddy water mixed solution can keep high sludge concentration in the biochemistry pool.But find that in practice membrane flux can reduce under high sludge concentration.For keeping certain membrane flux level, take at present be strengthen with air to film blow brush intensity, the result has caused the raising of energy consumption again, and has reduced film work-ing life.The biological activated carbon technology is to utilize activated carbon adsorptive capacity and adhere to the technology that microorganism is handled sewage on it, and gac is general with bigger particle in the traditional way, and tends to run off with treating water.At above problem, the film activity charcoal bio-reactor MACBR of band settling tank has been invented in design.

Summary of the invention:

Reactor comprises biochemical reaction tank, settling tank, gac membrane cisterna, mud storage pool, gas blower and water pump.Sewage order in reactor is carried out biochemical reaction, gravitational settling, charcoal absorption, biochemical reaction once more, the treating water that obtains cleaning under the buffer action of film.

Description of drawings

Biochemistry pool in the accompanying drawing one, settling tank, gac membrane cisterna, mud storage pool and accessory gas blower and water pump have been formed " the film activity charcoal bio-reactor-MACBR of band settling tank ".

Embodiment

Traditional membrane bioreactor is subdivided into biochemical reaction tank, settling tank, gac membrane cisterna and mud storage pool.Still keep high sludge concentration in the biochemical reaction tank, to keep high-caliber processing efficiency.Sewage precipitates through entering settling tank behind the biochemical reaction tank, and in the bottom of settling tank, supernatant liquor then enters in the gac membrane cisterna based on the sludgd deposition of microorganism.The supernatant liquor of settling tank is to have obtained the to a certain degree treating water of purifying treatment under action of microorganisms, and Pollutant levels contained in the water reduce greatly, but some dissolved organic matters that are difficult to be degraded by microorganisms still are present in the supernatant liquor.Membrane module is set in the gac membrane cisterna and adds an amount of active carbon powder.Gac has adsorption, can adsorb residual hardly degraded organic substance after adding, and comprises colored organism and has the organism of smelling flavor.The dosage of gac is determined according to pollutant kind contained in the water yield and the water and concentration.The microorganism that the while activated carbon surface adheres to can be decomposed adsorbed organic matter, reaches the processing to pollutent.The gac that has adsorbed pollutent under the buffer action of film with water sepn, thereby the treating water that is more cleaned, gac can not lose with current yet simultaneously.The microorganism that grows in the gac hole can absorb and decomposes adsorbed contaminants.The part pollutent forms the microbial cell human body, makes the adsorptive power of gac obtain certain recovery.After the sludge concentration that aging death and the microorganism that comes off from hole form in the gac membrane cisterna reaches certain level, must handle it.Concrete measure is that the mud in this pond is transferred to the mud storage pool.For keeping the microorganism concn in the biochemistry pool, sedimentary mud in the settling tank must be back in the biochemistry pool in proportion and replenish.Excess sludge then is transferred to the mud storage pool.

The equipment that cooperates is gas blower, in the biochemistry pool and the microorganism in the gac membrane cisterna provide oxygen to keep the psychological need of aerobic microbiological.Water pump provides mud and the isolating power for the treatment of water.

Claims

1. water technology that the combination that utilizes microorganism, settling tank, gac and ultra-filtration membrane is handled pollutant effluents.Comprise following composition:

Biochemistry pool carries out biochemical reaction to pollutants in sewage and handles;

Settling tank carries out precipitation process with settling tank to the biochemistry pool mixed solution;

The gac membrane cisterna adds gac and ultra-filtration membrane is set in the pond, utilize the gac in the pond that the settling tank supernatant liquor is carried out absorption reaction, and the microorganism that utilizes gac to adhere to carries out the secondary biochemical reaction, finally utilizes membrane sepn to go out clean treating water.

Three above-mentioned pond body units rearrange the main body of the film activity charcoal bio-reactor-MACBR of band settling tank according to the sequencing of biochemistry pool-settling tank-gac membrane cisterna.