Method for improving efficiency of blue-green algae or straw anaerobic methane production process

A technology of straw and cyanobacteria, applied in waste fuel, fermentation, etc., can solve the problems of low methane production and slow methane generation rate, and achieve the effects of increasing methane production, stable reaction process and simple components

Inactive Publication Date: 2015-07-08
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the problems of low methane production and slow methane generation rate in the anaerobic fermentation process, the present invention provides a simple and low-cost method for improving the methane production efficiency and methane production of cyanobacteria or straw

Method used

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  • Method for improving efficiency of blue-green algae or straw anaerobic methane production process
  • Method for improving efficiency of blue-green algae or straw anaerobic methane production process
  • Method for improving efficiency of blue-green algae or straw anaerobic methane production process

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Take 4 groups of 250mL serum bottles as cyanobacteria anaerobic reactors, 4 in each group, and the actual reaction volume is 200mL. Add cyanobacteria, anaerobic inoculation sludge, buffer salt, trace element aqueous solution and vitamin aqueous solution to the serum bottles to make the serum The initial concentration of cyanobacteria in the bottle is 5g VS / L, the initial concentration of anaerobic inoculated sludge is 2g VS / L, the addition amount of buffer salt, trace element aqueous solution and vitamin aqueous solution is all 1mL / L, then through 1mol / L HCl and 1mol / L NaOH solution to adjust the pH of the system to 7;

[0025] The concentration of various substances in the buffer salt is: NH 4 Cl 10mmol / L, KH 2 PO 4 1mmol / L, MgCl 2 0.5mmol / L, CaCl 2 0.5mmol / L, NaHCO 3 5mmol / L, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (Hepes) 10mmol / L.

[0026] The concentration of various substances in the trace element aqueous solution is: FeCl 2 10mmol / L, CoCl 2 1mm...

Embodiment 2

[0035]Four groups of 250 mL serum bottles were taken as corn stalk anaerobic reactors, 4 in each group, and the actual reaction volume was 200 mL. Corn stalks, anaerobic inoculation sludge, buffer salt, trace element aqueous solution, and vitamin aqueous solution were added to the serum bottles, so that The initial concentration of corn stalks in the serum bottle was 5g VS / L, the initial concentration of anaerobic inoculated sludge was 2g VS / L, the amount of buffer salt, trace element aqueous solution and vitamin aqueous solution was 1mL / L, and then passed through 1mol / L HCl and 1mol / L NaOH solution to adjust the pH of the system to 7;

[0036] The concentration of various substances in the buffer salt is: NH 4 Cl 10mmol / L, KH 2 PO 4 1mmol / L, MgCl 2 0.5mmol / L, CaCl 2 0.5mmol / L, NaHCO 3 5mmol / L, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (Hepes) 10mmol / L.

[0037] The concentration of various substances in the trace element aqueous solution is: FeCl 2 10mmol / L, C...

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Abstract

The invention discloses a method for improving the efficiency of a blue-green algae or straw anaerobic methane production process. The method is characterized in that tourmaline, activated carbon or graphite is adopted as an additive, the additive is respectively added into a blue-green algae or straw anaerobic fermentation system and is well mixed with anaerobic microbes and a fermentation substrate in the anaerobic fermentation system. With the method, blue-green algae or straw methane production efficiency and methane yield are improved during a process that the anaerobic microbes convert the blue-green algae or straw into methane.

Description

technical field [0001] The invention relates to utilization of organic waste renewable energy and organic waste biological treatment technology. Background technique [0002] Combustion of traditional fossil fuels produces a large amount of greenhouse gases and SO 2 At the same time, with the development of human society, non-renewable energy sources including coal, oil, and natural gas are increasingly in short supply, and the development and utilization of new renewable energy sources have attracted worldwide attention. [0003] Due to the development of society and industry, excessive nitrogen and phosphorus are discharged into water bodies, and eutrophication of water bodies has become the norm, resulting in the outbreak of cyanobacteria blooms in fresh water bodies. At present, the most important countermeasures to deal with blue-green algae outbreaks in my country are to collect and salvage blue-green algae. If the salvaged blue-green algae is not further processed, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02
CPCY02E50/30
Inventor 岳正波马丁王进
Owner HEFEI UNIV OF TECH
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