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Novel pretreatment film bioreactor and application method thereof

A membrane bioreactor, pretreatment technology, applied in chemical instruments and methods, filtration treatment, special treatment targets, etc., to achieve the effects of reducing usage, improving stability, and improving the quality of produced water

Pending Publication Date: 2019-10-01
水艺环保集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High degree of process automation, unattended, easy management and maintenance, fundamentally solve the problem of decentralized sewage treatment and reuse

Method used

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  • Novel pretreatment film bioreactor and application method thereof
  • Novel pretreatment film bioreactor and application method thereof
  • Novel pretreatment film bioreactor and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A decentralized integrated sewage treatment and reuse device based on pretreatment membrane bioreactor photocatalytic oxidation technology

[0051] (1) Introduce rural domestic sewage into the pretreatment area, where the raw water indicators are as follows:

[0052]

[0053] Among them, the anoxic / aerobic process (referred to as A / O process) is adopted in the pretreatment area. After the pretreatment process, the water quality indicators are as follows:

[0054]

[0055] (2) The water produced in the pretreatment area enters the MBR area, and the MBR water production indicators are as follows:

[0056]

[0057]

[0058] The MBR membrane adopts a submerged hollow fiber membrane with a membrane separation pore size of 0.4 μm and a membrane flux of 15LMH.

[0059] (3) The water produced in the MBR area enters the MBR water production area, a small amount is used for membrane system maintenance, and most of the overflow enters the photocatalytic oxidation area...

Embodiment 2

[0063] A decentralized integrated sewage treatment and reuse device based on pretreatment membrane bioreactor photocatalytic oxidation technology

[0064] (1) Introduce the sewage from the soybean product processing plant into the pretreatment area through the septic tank, and the raw water indicators are as follows:

[0065]

[0066] Among them, the coagulation sedimentation / anoxic / aerobic process is adopted in the pretreatment area. After the pretreatment process, the water quality indicators are as follows:

[0067]

[0068] (2) The water produced in the pretreatment area enters the MBR area, and the MBR water production indicators are as follows:

[0069]

[0070] The MBR membrane adopts a submerged hollow fiber membrane with a membrane separation pore size of 0.4 μm and a membrane flux of 12LMH.

[0071] (3) The water produced in the MBR area enters the MBR water production area, a small amount is used for membrane system maintenance, and most of the overflow en...

Embodiment 3

[0077] A decentralized integrated sewage treatment and reuse device based on pretreatment membrane bioreactor photocatalytic oxidation technology

[0078] (1) Introduce the sewage from the community into the pretreatment area through the septic tank, and the raw water indicators are as follows:

[0079]

[0080] Among them, the anoxic / aerobic process is adopted in the pretreatment area. After the pretreatment process, the water quality indicators are as follows:

[0081]

[0082] (2) The water produced in the pretreatment area enters the MBR system, and the MBR water production indicators are as follows:

[0083]

[0084] The MBR membrane adopts a submerged hollow fiber membrane with a membrane separation pore size of 0.4 μm and a membrane flux of 12LMH.

[0085] (3) The water produced in the MBR area enters the MBR water production tank, a small amount is used for membrane system maintenance, and most of the overflow enters the photocatalytic oxidation area for oxid...

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Abstract

According to the invention, rural domestic sewage, residential domestic sewage or a small amount of industrial wastewater are collected, then enter a pretreatment area through a lifting system for coagulation sedimentation and anaerobic and anoxic processes in the pretreatment area, and automatically flow into a MBR area after pollution indexes meet the water inflow requirement of an MBR system; through the treatment in the MBR area, the turbidity of produced water is less than or equal to 1 NTU, and other indexes conform to produced water quality indexes of the MBR system. Photocatalytic oxidation produced water enters a water producing area and can be overflowed and discharged, and can also be sent to a recycling point through a pressurization system for recycling. The traditional process, the film process and the advanced oxidation process are organically combined to form a movable integrated water treatment device aiming at small water quantity, the system has high automation degree, is unattended, does not need subsequent disinfection treatment, has no disinfection byproducts, and is simple and convenient to maintain.

Description

technical field [0001] The invention relates to a sewage treatment and recycling device, in particular to a decentralized integrated sewage treatment and recycling device based on the photocatalytic oxidation technology of a pretreatment membrane bioreactor. Background technique [0002] Membrane bioreactor (referred to as MBR process) uses membranes instead of secondary sedimentation tanks for solid-liquid separation of mud-water mixtures in biochemical processes. It uses open hollow fiber, flat-plate, and tubular membrane modules, and places the membranes directly in the aerobic tank. Or place it alone, through the negative pressure suction or positive pressure of the pump, the water will permeate the surface of the membrane to achieve the purpose of filtration and purification. The MBR process has been successfully applied to the treatment of urban sewage and industrial sewage at home and abroad. [0003] The core of the MBR process is the ultrafiltration-grade separatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F3/301C02F3/1273C02F1/30C02F1/32C02F1/725C02F1/001C02F2203/006C02F2303/14C02F2209/08C02F2209/14C02F2209/10
Inventor 张锋同现鹏袁梦龙谢宝实张杰
Owner 水艺环保集团股份有限公司
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