Device and method for treating organic wastewater by utilizing continuous energy supply of microbial fuel cell

Abstract

The invention provides a process device for treating organic wastewater by utilizing continuous energy supply of a microbial fuel cell. The process device consists of a photosynthetic bacteria type MFC, a bacillus type single-chamber MFC, a facultative bacteria type multi-chamber parallel MFC, a mixed microbial sludge nitrification and denitrification type double-chamber MFC, an MFC storage battery and an organic wastewater discharging or recycling device. Each device can degrade different components in organic wastewater and continuously provide energy and a light source for microbial proliferation and provides energy storage for the MFC storage battery. Microorganisms are derived from organic wastewater, are enriched and cultured in the MFC device, are high in adaptability and breeding speed, can efficiently degrade all substances in the organic wastewater, and realize wastewater purification and complete sludge digestion. The energy source in the treatment process is that biological energy of microorganisms is converted into electric energy or heat energy, so that the organic wastewater can be treated by microbial flora in different environments and different climates, and the method and device are a major innovation of a wastewater treatment process technology and device.

Description

【Technical field】 [0001] The invention relates to a device for treating organic waste water and a method for treating organic waste water by using microbial fuel cells to continuously supply energy. 【Background technique】 [0002] The rapid development of aquaculture, food processing, and organic synthesis in our country produces a large amount of organic wastewater. At the same time, urbanization has led to a large amount of high-concentration and difficult waste liquids such as kitchen waste, waste transfer compression liquid, and landfill leachate. However, the discharged organic sewage has a high concentration, is difficult to degrade, and has various components. The heavy metals, sulfides, toxic substances and nitrides contained in organic wastewater are more expensive, and the composition is very complex, which is difficult to exclude. Part of the color concentration is high and has obvious odor. The special color and taste of organic wastewater make it have a greate...

AI Technical Summary

Problems solved by technology

However, the discharged organic sewage has a high concentration, is difficult to degrade, and has various components.

The heavy metals, sulfides, toxic substances, and nitrogen compounds contained in organic wastewater are relatively expensive, and the components are very complex and difficult to exclude.

Part of the color concentration is high and has a relatively obvious odor. The special color and taste of organic wastewater make it have a greater impact on the surrounding environment, which is not conducive to biological growth and human survival.

At the same time, chemical organic wastewater has strong acid and weak alkalinity, most of which are wastewater produced by chemical production, which has obvious strong acid and weak alkalinity, which cannot be compatible with natural water and soil properties, so it cannot be naturally degraded

The traditional treatment technology needs to invest a lot of equipment and facilities, occupy a lot of urban land, and there will be a lot of non-degradable sludge after treatment, which must be treated twice, wasting a lot of resources and energy

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