Integrated equipment and method for coprocessing methane and malodorous substances

Abstract

The invention relates to integrated equipment and a method for coprocessing methane and malodorous substances. The equipment provided by the invention is composed of a gas film separation region, a downstream aerobic region, an upstream anaerobic region, a permeation gas diversion region and a residual gas diversion region, wherein a plurality of gas film assemblies are mounted in the gas film separation region; the downstream aerobic region is used for containing sulfur-oxidizing bacterium, ammonia-oxidizing bacterium and nitrifying bacterium attached fillers; the upstream anaerobic region is used for containing a methane-oxidizing bacterium and denitrifying bacterium suspension water solution; and the gas film separation region is communicated with the downstream aerobic region through the permeation gas diversion region, and is communicated with the upstream anaerobic region through the residual gas diversion region. Through the separation action of the gas film assemblies, malodorous substances and oxygen gas enter the downstream aerobic region, methane enters the upstream anaerobic region, and oxidation products of the malodorous substances in the downstream aerobic region are input into the upstream anaerobic region to provide oxidizer for oxidation of the methane, so that the methane and the malodorous substances can be effectively coprocessed in the two biochemical reaction regions. The equipment provided by the invention is compact in structure, low in energy consumption and simple to operate.

Description

technical field [0001] The invention belongs to equipment for treating waste gas by using a bioreactor, in particular to an integrated equipment and method for co-processing methane and malodorous substances. Background technique [0002] During the anaerobic treatment of sewage, sludge concentration and digestion, and garbage disposal, a large amount of volatile organic compounds and odorous substances are produced. Odor pollution has attracted more and more attention due to sensory discomfort and serious harm to human health and the ecological environment. Many developed countries have formulated relevant laws and regulations to strictly control the emission of odorous substances. In the 1990s, my country also formulated emission standards for odor pollutants (GB14554-93). At present, there are physical methods, chemical methods and biological methods to deal with malodorous substances. Compared with other physical and chemical methods, the biological deodorization meth...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that methane and malodorous substances cannot be biologically treated at the same time, and use the separation effect of the gas membrane module to separate the malodorous substances and oxygen in the gas from methane, so that the malodorous substances and oxygen enter the aerobic zone, and the methane enters the anaerobic zone. In the oxygen zone, the oxidation products of the malodorous substances in the aerobic zone are input to the anaerobic zone through a circulation pump to provide oxidants for the oxidation of methane, thereby providing a compact structure, easy operation, low energy consumption, not only can efficiently utilize gas Oxygen in the system oxidizes odorous substances, and no additional oxidant is needed, and the oxidation products of odorous substances are used to effectively oxidize methane to realize the co-processing of methane and malodorous substances, which is an integrated equipment for co-processing of methane and malodorous substances that reduces investment and operating costs

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