Method for cooperatively treating volatile organic compounds and nitrogen-containing and sulfur-containing malodorous substances

A volatile organic compound and co-processing technology, applied in the field of environmental engineering, can solve the problem that sulfur-containing, nitrogen-containing and odorous substances cannot be effectively co-processed with biological treatment
CN111111422APending Publication Date: 2020-05-08RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Publication Date
2020-05-08

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Abstract

The invention belongs to the technical field of environmental engineering, and relates to a method for cooperatively treating volatile organic compounds and nitrogen-containing and sulfur-containing malodorous substances. According to the method, two reaction processes including oxidation of nitrogen-containing and sulfur-containing malodorous substances and biological-electrochemical conversion of volatile organic compounds are combined; the nitrogen-containing and sulfur-containing malodorous substances are subjected to an aerobic reaction in a plug-flow oxidizer to be converted into sulfate, nitrite and nitrate; an oxidation product of the malodorous substances is input into a biological-electrochemical oxidizer through a circulating pump, so an electron acceptor is provided for an anaerobic oxidation of the volatile organic compounds; the volatile organic compounds are oxidized into carbon dioxide by sulfate, nitrite and nitrate in the biological-electrochemical oxidizer; and anaerobic conditions are adopted for oxidation of the volatile organic compounds, and additional oxygen does not need to be supplemented, so energy consumption is reduced.
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Description

Technical field:

[0001] The invention belongs to the technical field of environmental engineering, and relates to a device for co-processing mixed waste gas containing various substances by using a bio-electrochemical reactor, in particular to a method for co-processing volatile organic compounds and nitrogen-containing and sulfur-containing malodorous substances. Background technique:

[0002] Domestic garbage and domestic sewage contain a large amount of organic matter. In the process of landfill, composting, anaerobic hydrolysis of sewage, sludge concentration and digestion, etc., the biodegradation and decomposition of organic matter occurs in an oxygen-free or anoxic environment. . Therefore, a large amount of malodorous substances containing sulfur (such as hydrogen sulfide, methyl mercaptan, and methyl sulfide) and nitrogen (such as ammonia and trimethylamine) will be produced during the treatment process. These substances can cause sensory discomfort and cause serio...

Claims

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