Method for producing methane from high-concentration phenol-containing wastewater

A high-concentration technology for phenol wastewater, applied in the field of methane production from high-concentration phenol-containing wastewater, can solve problems such as human environmental impact, human and microbial toxicity, and achieve the effects of optimizing transformation pathways, promoting electron transfer, and promoting methane production

Inactive Publication Date: 2019-12-24
SUZHOU UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Even at low concentrations, it can have a huge toxic effect on humans and microorganisms, which has a very adverse impact on the human environment

Method used

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  • Method for producing methane from high-concentration phenol-containing wastewater
  • Method for producing methane from high-concentration phenol-containing wastewater
  • Method for producing methane from high-concentration phenol-containing wastewater

Examples

Experimental program
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Embodiment 1

[0024] see figure 1 , take the mixed solution (GW+CGW, volume ratio 1:1) of high-concentration phenol-containing wastewater and glucose solution (COD=2000mg / L) as the influent water sample, enter from the bottom of the AF reactor, and pass the AF anaerobic reaction At the same time, the concentration of graphene added to the reactor is 10g / L, and the HRT of the system is maintained for 48 hours. The waste water is filtered through the filter membrane in the AF reactor, and the co-metabolism of the glucose substrate and the adsorption of graphene and the promotion of anaerobic Oxygen microbial electron transfer function, the treated wastewater finally flows out from the top. The generated methane gas is collected after passing through the liquid-sealed bottle and the lye absorption bottle.

[0025] 1. Small test of accumulative methane production by adding graphene to phenolic wastewater

[0026] Take 4 380mL serum bottles and inoculate a certain amount of anaerobic sludge an...

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Abstract

The invention discloses a method for producing methane from high-concentration phenol-containing wastewater. The method comprises the following steps: adding 9.8-10.5 g / L of graphene into an anaerobicbiofilter reactor; then with a mixed solution of high-concentration phenol-containing wastewater and a glucose solution as an inflow water sample, enabling the inflow water sample to enter the anaerobic biofilter reactor from the bottom and carrying out anaerobic digestion reaction, and collecting generated gas from the top; wherein the concentration of the glucose solution ranges from 1865 mg / Lto 2130 mg / L. According to the method for producing methane from high-concentration phenol-containing wastewater, an anaerobic co-metabolism enhancement technology and graphene are applied to anaerobic treatment of wastewater, so that the yield of methane produced by anaerobic digestion of phenol-containing wastewater is increased.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a method for producing methane from high-concentration phenol-containing waste water. Background technique [0002] Anaerobic biological treatment technology is a process in which facultative anaerobic and anaerobic microbial populations convert organic matter into methane and carbon dioxide under anaerobic conditions. As an industrial raw material, phenolic compounds are widely used in petrochemical, printing and dyeing, textile, pesticide, biomedicine and other industries. It is also a relatively common pollutant in industrial wastewater. Even at low concentrations, it can have a huge toxic effect on humans and microorganisms, and has a very adverse impact on the human environment. Phenol can denature proteins and cause poisoning if it touches the skin. According to OSHA and ACGIH regulations, the limit concentration of phenol and skin contact is less than 5mg / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/34
CPCC02F3/2806C02F3/2826C02F3/2866C02F2101/345C02F2203/006C02F2209/285C02F2305/00C02F2305/06
Inventor 李雅婕刘宏波洪耀良
Owner SUZHOU UNIV OF SCI & TECH
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