Device for relieving membrane pollution of electric reinforced separation membrane and synchronously promoting methane production

A technology to strengthen separation and membrane pollution, which is applied in the direction of water pollutants, biological treatment devices, electrochemical and biological combination treatment, etc., can solve the problems of membrane pollution cost, increase, and restriction of large-scale application, so as to reduce sludge loss, Enhanced efficiency, improved treatment efficiency and effluent water quality

Inactive Publication Date: 2018-09-04
DALIAN UNIV OF TECH
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Problems solved by technology

However, due to the need to improve the yield and conversion rate of energy gas, the serious problem of membrane fouling and the increased cost have restricted its large-scale application,

Method used

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  • Device for relieving membrane pollution of electric reinforced separation membrane and synchronously promoting methane production
  • Device for relieving membrane pollution of electric reinforced separation membrane and synchronously promoting methane production

Examples

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Embodiment

[0024] Example: Treatment of Low Concentration Organic Wastewater by Electrically Strengthening Carbon Nanotube Hollow Fiber Membrane Bioreactor

[0025] Such as figure 1 As shown, the device is composed of a reactor main body, a carbon nanotube hollow fiber membrane module 7, a vacuum pressure gauge 4, a water inlet pump 2, an insulation layer 12, a low-voltage direct current power supply 3 and wires, etc., wherein the water inlet regulating tank 1 is The peristaltic pump 2 is connected to the bottom of the sludge reaction layer 15 in the reactor barrel through the water inlet pipe; the main body of the reactor is a tubular structure with an effective volume of 1L; the carbon nanotube hollow fiber membrane module 7 is all composed of carbon nanotubes, which are electrically conductive The sealant is glued into a bundle and placed in a uniformly perforated plastic tube as a membrane module. The top of the module is provided with a water outlet 6 connected with the outlet pipe ...

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Abstract

The invention provides a device for relieving membrane pollution of an electric reinforced separation membrane and synchronously promoting methane production. A membrane separation technology, an anaerobic microbial technology and a bioelectrochemistry technology are organically combined. The device relates to the technical field of sewage treatment. The device provided by the invention belongs toan integrated immersed anaerobic membrane bioreactor, which comprises a reactor main body, a separation membrane assembly, a three-phase separator, a pressure detection device, a water pump, a temperature control device, a power supply device and the like, wherein the separation membrane assembly is made of conductive materials, so that the dual effects of filtering and biological cathodes are achieved. The device can reach the following effects that on one hand, the sludge loss can be reduced through interception; meanwhile, electrical bias is applied onto the surface of the membrane; the occurrence of membrane pollution is relieved through the static electricity repulsion effect; on the other hand, through the introduction of an electric field, the growth and metabolism of electric active microbes can be stimulated; the organic matter conversion efficiency in the anaerobic reaction is enhanced, so that the treatment efficiency and the outlet water quality can be improved; in addition, energy sources can be recovered from sewage in a biogas mode; the operation energy loss can be supplemented.

Description

technical field [0001] The invention relates to a device for mitigating membrane fouling and synchronously promoting methane production through an electrically strengthened separation membrane, which belongs to the technical field of sewage treatment. Background technique [0002] In recent years, as a new technology, the anaerobic membrane bioreactor has received widespread attention in the field of sewage treatment. It is the coupling of membrane separation technology and anaerobic biological technology. Good, and energy recovery and other advantages. However, due to the need to improve the yield and conversion rate of energy gas, the serious problem of membrane fouling and the increased cost have restricted its large-scale application, so appropriate measures should be taken to promote gas production, control and alleviate membrane fouling, and combine Membrane characteristics for reactor optimization become a key issue. [0003] Studies have shown that the main causes ...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F3/28C02F3/34C02F11/04C02F101/30
CPCC02F3/005C02F3/2853C02F3/34C02F11/04C02F2101/30C02F2203/006Y02E50/30
Inventor 全燮赵松文陈硕于洪涛张耀斌赵慧敏
Owner DALIAN UNIV OF TECH
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