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Waste water treatment device, and waste water treatment method

A technology for wastewater treatment and equipment, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. problems, to achieve the effect of facilitating growth and adhesion, preventing excessive thickening, and reducing the content of organic matter

Inactive Publication Date: 2015-05-13
MITSUBISHI CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, microorganisms cannot fully act on wastewater, and it is difficult to carry out stable and sufficient anaerobic biological treatment.

Method used

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  • Waste water treatment device, and waste water treatment method

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Embodiment

[0065] In this embodiment, the wastewater treatment device includes: the aforementioned anaerobic tank, the aforementioned aerobic membrane bioreactor unit, and the aforementioned biofilm unit.

[0066] Regarding the anaerobic tank, L×W×H is 700mm×2000mm×1800mm, and the effective volume is 2.1m 3 , the inner filled acrylic fiber packing is 18×0.54=9.72m 2 .

[0067] Regarding the aerobic tank of the aerobic membrane bioreactor unit, L×W×H is 1000mm×600mm×2300mm, and the effective volume is 1.32m 3 . The interior is filled with PVDF hollow fiber plate microfiltration membrane, the membrane pore size is 0.4μm, and the membrane area is 18m 2 .

[0068] Regarding the biofilm treatment unit, L×W×H is 350mm×450mm×1100mm, and the effective volume is 0.16m 3 , the supporting layer of the biofilm treatment tank is pebbles with a thickness of 0.1m, the iodine value of coal-based activated carbon is 1100mg / g, the methyl blue value is greater than 330mg / g, the tannic acid value is 41...

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Abstract

The invention provides a waste water treatment device, and a waste water treatment method. The waste water treatment device comprises an anaerobic tank used for anaerobic biological treatment of waste water under anaerobic conditions, and an aerobic membrane bioreactor used for anaerobic biological treatment and membrane filtration of waste water processed via the anaerobic tank; and a carrier composed of acrylic acid non-woven fabric is arranged in the anaerobic tank. The waste water treatment device is capable of improving adhesiveness of anaerobic microorganisms on the carrier, and realizing full proceeding of anaerobic biological treatment.

Description

technical field [0001] The invention relates to a wastewater treatment device and a wastewater treatment method capable of treating refractory wastewater containing refractory substances such as printing and dyeing wastewater or coal wastewater. Background technique [0002] In the prior art, it is known that anaerobic biological treatment can effectively decompose nitrogen-containing pigment substances contained in printing and dyeing wastewater or carbolic acid substances contained in coal wastewater. When carrying out biological treatment of these printing and dyeing wastewater or coal wastewater, it is usually anaerobic first and then aerobic: first use anaerobic biological treatment to make nitrogen-containing pigment substances or carbolic acid substances into easily degradable substances or low-toxic substances, and then reuse Aerobic biological treatment removes organic matter in the effluent of anaerobic biological treatment. [0003] Patent Document 1 describes a ...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 川岸朋树刘锐
Owner MITSUBISHI CHEM CORP
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