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Sand-based flat membrane-bioreactor

A technology of bioreactors and bioreaction pools, applied in the direction of sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc. Short life and other problems, achieve the effect of large circulating water, reduce water consumption and chemical cleaning dosage, and reduce equipment costs

Inactive Publication Date: 2011-11-23
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a sand-based membrane-bioreactor, in order to solve and overcome the problems that the known membrane bioreactors adopt organic membranes with short service life and inorganic ceramic membranes with high cost, high energy consumption and high operating costs.

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Embodiment Construction

[0042] Sand-based membrane bioreactor of the present invention, it mainly comprises:

[0043] Biological reaction tank 2, membrane filter 3, biological drum air flow meter 4, biological drum air tube 5, membrane drum air flow meter 6, membrane drum air tube 7, n-shaped circulation pipe 8, sand substrate type membrane module 9, suction pump 10. Partition wall 11, purified water flow meter 12, air pump 13, sand substrate type membrane element 14, membrane support 15 (see figure 1 ).

[0044] The specific composition is: the membrane filter 3 and the biological reaction tank 2 are separated by a partition wall 11, and the top of the partition wall 11 is submerged in the biological reaction tank 2 or the membrane filter tank 3 from the water level to a depth of 10-35 cm, and the bottom of the partition wall 11 has holes An n-shaped circulation pipe 8 is installed on the partition wall 11 between the membrane filter tank and the biological reaction tank; the main body of the n-sh...

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Abstract

A sand-based flat membrane-bioreactor mainly comprises a bio-reaction cell, a membrane filter cell, a biological air-blowing flowmeter, a biological air-blowing pipe, a membrane air-blowing flowmeter, a membrane air-blowing pipe, an n-shaped circulating pipe, a sand-based flat membrane component, a suction pump, a partition wall, a purified water flowmeter, an air pump, a sand-based flat membraneelement, and a membrane bracket. Based on the well-known water permeable brick technology, the invention is prepared by the following steps: coating an organic membrane material to obtain a long-lifemembrane element - sand-based flat membrane element, forming a sand-based flat membrane component by the membrane element, and forming a sand-based flat membrane-bioreactor by the sand-based flat membrane component. The invention solves and overcomes the problems of a short service life due to the adoption of an organic membrane, and high cost, high running energy consumption and high running expense due to the adoption of an inorganic ceramic membrane for well-known membrane bioreactors. The membrane bioreactor becomes a technique for water treatment, sewage treatment, and sewage regeneration and recycle, which is more practical, and is suitable for popularization and large-scale utilization.

Description

technical field [0001] The invention belongs to the technical field of membrane bioreactors, in particular to a sand substrate type membrane-bioreactor. Background technique [0002] The membrane bioreactor is composed of a biological reaction pool unit and a membrane separation unit. Its characteristics are: good quality of treated water, suitable for reuse of treated water; small footprint, high environmental adaptability; high degree of automation, easy operation and management. The scale of its application continues to develop. Municipal sewage treatment projects of 10,000 tons and hundreds of thousands of tons have appeared, and the number of applications is increasing. Thousands of membrane bioreactor projects have been obtained in many countries and regions in the world. application. [0003] There are two types of known membrane bioreactors: one-piece and split-body. The membrane units are submerged and external cross-flow. The membrane materials used in the membran...

Claims

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Application Information

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IPC IPC(8): C02F3/12C02F3/10
CPCY02W10/10
Inventor 樊耀波徐国良徐云秦升益
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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