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Methane reduction agent, preparation method and methane in-situ reduction method

A technology of methane and methane oxidizing bacteria, which is applied in the fields of methane reducing agent, preparation, and methane in-situ reduction, which can solve the problems of poor methane removal effect, achieve the effect of reducing the greenhouse effect, wide application range, and broad market application prospects

Active Publication Date: 2022-07-22
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned problems existing in the prior art, the present invention provides a methane reduction agent, a preparation method and an in-situ reduction method of methane in order to achieve the above-mentioned purpose, and the reduction method can effectively solve the methane removal effect existing in the prior art bad question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of methane in-situ reducing agent, its preparation method comprises the following steps:

[0026] (1) add 150ml methylmonas bacteria liquid and 4ml paraffin oil to 80ml inorganic salt medium, adjust pH value to be 5, stir and mix until there are bubbles on the surface of the solution, then leave standstill until the solution becomes clear; wherein, The inorganic salt culture solution contains solution A and solution B, the volume ratio of the solution A and the solution B is 99:1, and the solution A contains 0.8g / L, 2.5g / L KH 2 PO 4 Na 2 HPO 4 ·12H 2 O, 0.2g / LMgSO 4 ·7H 2 O and 0.8-1.2g / LNH 4 NO 3 , the solution B contains 2.5g / L MgSO 4 ·7H 2 O, 0.4g / L MnSO 4 ·2H 2 O, 0.8g / L NaCl, 0.05g / L FeSO 4 ·7H 2 O, 0.05g / L CaCl 2 ·2H 2 O, 0.05g / L ZnSO 4 ·7H 2 O. 0.01g / L CuSO 4 ·5H 2 O, 0.01g / L KAl (SO 4 ) 2 , 0.01g / L H 3 BO 3 , 0.01g / LNa 2 MoO 4 ·2H 2 O, pH 6.8;

[0027] (2) adding multi-mineral phase particles to the solution obtained in step (1)...

Embodiment 2

[0030] A kind of methane in-situ reducing agent, its preparation method comprises the following steps:

[0031] (1) add 300ml methylobacter bacteria liquid and 9.5ml paraffin oil to 150ml inorganic salt medium, adjust the pH value to be 7, stir and mix until there are bubbles on the surface of the solution, then leave standstill until the solution becomes clear; wherein , the inorganic salt culture solution contains solution A and solution B, the volume ratio of the solution A and solution B is 99:1, and the solution A contains 1.2g / L, 3.0g / LKH 2 PO 4Na 2 HPO 4 ·12H 2 O, 0.4g / LMgSO 4 ·7H 2 O and 1.2g / LNH 4 NO 3 , the solution B contains 3.5g / LMgSO 4 ·7H 2 O. 0.6g / L MnSO 4 ·2H 2 O, 1.2g / L NaCl, 0.15g / L FeSO 4 ·7H 2 O, 0.15g / L CaCl 2 ·2H 2 O, 0.15g / L ZnSO 4 ·7H 2 O, 0.04g / L CuSO 4 ·5H 2 O, 0.02g / L KAl (SO 4 ) 2 , 0.02g / L H 3 BO 3 , 0.02g / L Na 2 MoO 4 ·2H 2 O, pH 7.2;

[0032] (2) adding multi-mineral phase particles to the solution obtained in step (1)...

Embodiment 3

[0035] A kind of methane in-situ reducing agent, its preparation method comprises the following steps:

[0036] (1) add 200ml of Campylobacter methylus bacteria liquid and 7ml of paraffin oil to 120ml of inorganic salt medium, adjust the pH value to be 6, stir and mix until there are air bubbles on the surface of the solution, and then stand until the solution becomes clear; wherein, the inorganic salt culture The liquid contains solution A and solution B, the volume ratio of the solution A and the solution B is 99:1, and the solution A contains 1g / L, 2.8g / L KH 2 PO 4 Na 2 HPO 4 ·12H 2 O, 0.3g / LMgSO 4 ·7H 2 O and 1g / LNH 4 NO 3 , the solution B contains 3g / L MgSO 4 ·7H 2 O, 0.5g / L MnSO 4 ·2H 2 O, 1g / L NaCl, 0.1g / L FeSO 4 ·7H 2 O, 0.1g / L CaCl 2 ·2H 2 O, 0.1g / LZnSO 4 ·7H 2 O, 0.02g / L CuSO 4 ·5H 2 O, 0.01g / L KAl (SO 4 ) 2 , 0.01g / L H 3 BO 3 , 0.01g / LNa 2 MoO 4 ·2H 2 O, pH 7;

[0037] (2) adding multi-mineral phase particles to the solution obtained in st...

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Abstract

The invention provides a methane reduction agent, a preparation method and a methane in-situ reduction method, and the preparation method of the methane reduction agent comprises the following steps: adding a methane-oxidizing bacteria solution and paraffin oil into an inorganic salt culture medium, adjusting the pH value to 4.5-8.5, stirring and mixing until bubbles exist on the surface of the solution, and then standing until the solution becomes clear; and adding the multi-mineral-phase particles into the obtained solution, and uniformly stirring and mixing to obtain the methane reducing agent containing the multi-mineral-phase particles. The reduction method can effectively solve the problem of poor methane removal effect in the prior art.

Description

technical field [0001] The invention belongs to the technical field of methane treatment, and in particular relates to a methane reducing agent, a preparation method and a method for reducing methane in situ. Background technique [0002] Rural domestic sewage is mainly divided into three categories: kitchen sewage, washing sewage and toilet sewage. The toilet sewage contains a variety of germs and parasite eggs, and the pollution load contribution rate is extremely high, and the drainage volume accounts for 34.2% of the total sewage. Under the conditions of isolating the air and maintaining a certain moisture, temperature, pH, etc., the material will generate biogas after being decomposed by various microorganisms. Methane is the main component of biogas, and the total amount of methane produced by urban / urban septic tanks in my country is as high as 3000×10 4 tCO 2 Equivalent / a, compared with the direct carbon emissions of methane and nitrous oxide from the municipal cen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/84B01D53/72
CPCB01D53/84B01D53/72B01D2251/95B01D2257/7025Y02E50/30
Inventor 代群威杨慧娴赵玉连王宇
Owner SOUTHWEAT UNIV OF SCI & TECH