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Method for Enrichment of Methanosarcina and Methanothrix in Treatment of Sulphate Organic Wastewater

Active Publication Date: 2016-03-02
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology

Sulfate is contained in waste water. During the anaerobic treatment process, primary inhibition and secondary inhibition of anaerobic microorganisms, especially methanogens (MPB) are caused by sulfate reducing bacteria (SRB) reducing sulfate, often leading to anaerobic The failure of the oxygen reactor severely restricts the engineering application of the anaerobic process in this type of wastewater treatment

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  • Method for Enrichment of Methanosarcina and Methanothrix in Treatment of Sulphate Organic Wastewater
  • Method for Enrichment of Methanosarcina and Methanothrix in Treatment of Sulphate Organic Wastewater
  • Method for Enrichment of Methanosarcina and Methanothrix in Treatment of Sulphate Organic Wastewater

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the examples, so as to facilitate the understanding of the present invention, the methanogens described in the examples are only Sarcina methanosarcina and Methanothrix.

[0011] 1. The reactor used in the anaerobic treatment system for sulfate organic wastewater: the reactor uses an anaerobic baffle reactor (ABR) with 5 compartments, with a total volume of 77L and an effective volume of 61.6L, which are defined as 1 according to the direction of water flow. , 2, 3, 4, 5 compartments. Each compartment of the reactor is composed of upper and lower flow chambers. The volume ratio of the upper and lower flow chambers is 3:1. The volume of the first compartment is 1.5 times that of the other compartments, and the volume of the other compartments is the same. The angle at the bottom edge of the baffle leading to the upflow chamber is a deflector with an upward 45°C, which is convenient for se...

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Abstract

The invention discloses a method for enriching methanosarcina and methanothrix during sulfate organic wastewater treatment. According to the method, anaerobic reactors of at least four compartments connected in series, the starting mode of a sulfate organic wastewater anaerobic treatment system and a running control mode of a sulfate organic wastewater anaerobic treatment system are adopted. The method can be used for solving the difficulty that the growth and activity of methanosarcina and methanothrix during the process of sulfate organic wastewater anaerobic treatment are inhibited, realizing the separation of a sulfate reducing phase from a methane producing phase and the separation of methanosarcina from methanothrix and achieving the purpose of directionally enriching the methanosarcina and methanothrix.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method for enriching Methanosarcina and Methanothrix in sulfate organic wastewater treatment. Background technique [0002] Sulfate-containing organic wastewater is a kind of industrial wastewater that is difficult to treat, and it is discharged in large quantities in the production process of light industry, pharmaceutical, chemical and pesticide industries. In the past two decades, the use of anaerobic process to treat sulfate-containing organic wastewater has always been the focus of environmental engineering. Wastewater contains sulfate. During anaerobic treatment, primary and secondary inhibition of anaerobic microorganisms, especially methanogens (MPB), is caused by the reduction of sulfate by sulfate-reducing bacteria (SRB), which often leads to anaerobic treatment. The failure of the oxygen reactor severely restricts the engineering application of the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F3/34
CPCY02E50/30
Inventor 蒋永荣刘成良刘可慧韦平英
Owner GUILIN UNIV OF ELECTRONIC TECH
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