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Method and device for immobilizing mbr with microorganisms

A microbial immobilization and carrier technology, which is applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the complex structure of the reactor and cannot fully reflect the advantages and cost of the combination of immobilized microorganisms and MBR. Advanced problems, to reduce the number of chemical cleaning, improve processing capacity and stability, and promote the effect of decomposition

Active Publication Date: 2017-02-15
GO HIGHER ENVIRONMENT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this patent, the hollow fiber membrane module and the cubic filler are placed in partitions in the aerobic reactor. The reactor structure is complex and the cost is high, which cannot fully reflect the advantages of the combination of immobilized microorganisms and MBR.

Method used

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  • Method and device for immobilizing mbr with microorganisms

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example 1

[0033] Coal chemical wastewater treatment project, treatment capacity 500m 3 / d, raw water COD400-800mg / L, ammonia nitrogen 180-240mg / L, SS 150-200mg / L. After being treated by the microbial immobilized membrane bioreactor, the effluent COD20-50mg / L, ammonia nitrogen3 , The cleaning cycle is increased from 90 days to 130 days, and the cleaning cost is reduced by 25%.

example 2

[0035] Tobacco wastewater treatment and reuse project, with a treatment capacity of 200m 3 / d, raw water CODcr is 600-1800mg / L, BOD is 130-400mg / L, SS is 250-500mg / L. After being treated by the microbial immobilized membrane bioreactor, the effluent CODcr is less than 50mg / L, and the turbidity is less than 1NTU. The system has been running for one month, and the transmembrane pressure (TMP) has risen from 2.7kPa to 5.6kPa. The membrane pressure difference has risen steadily and the operation is stable.

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Abstract

The invention provides a microbial immobilization MBR (Membrane Bioreactor) device and a use method thereof. The device mainly comprises a water feeding pump, a membrane pool, a membrane component, a microbial immobilization carrier, a water generation pump, a fan and the like. A microbial immobilization technique is combined with a membrane bioreactor, so that the biological species of the reactor are enriched, microorganisms are subjected to proliferation on the carrier, the sludge concentration is reduced, and the membrane pollution is slowed down; and through the washing function of the carrier to the membrane surface, uninterrupted physical cleaning is carried out, and the period of chemical washing is prolonged. The operation energy consumption is low, the membrane pollution degree is reduced, and the initial investment of equipment is reduced; and the device is simple in structure, small in occupied space and simple to operate, and is convenient in automation operation and operation control.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method and a device for immobilizing MBR with microorganisms. Background technique [0002] As a new sewage treatment process that combines membrane separation and biotechnology, membrane bioreactor (MBR) has excellent and stable effluent quality and small footprint, making it suitable for urban sewage and industrial wastewater treatment and reuse. Becoming a very competitive option and highly regarded globally. As an efficient water treatment technology, MBR is in the stage of development and perfection, and it still has certain defects that need to be further solved. At present, high operating energy consumption and membrane fouling are the main bottlenecks restricting the engineering application of MBR. [0003] Membrane fouling control is mainly achieved from three aspects: membrane module properties, sludge mixture properties and operating co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12C02F3/34
CPCY02W10/10
Inventor 陈福泰杨艳郝福锦
Owner GO HIGHER ENVIRONMENT GRP CO LTD
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