A kind of hedn bioreactor and processing method

Abstract

The invention discloses a HEDN bioreactor and a treatment method, comprising: a HEDN biochemical tank and an oxygenator installed on the top of the HEDN biochemical tank; the HEDN biochemical tank is provided with a HEDN packing layer and a water distributor, and the HEDN packing layer is located in the water distributor The upper water distributor to the top of the HEDN packing layer forms a suspended sludge bed area, the bottom of the water distributor forms a sedimentation sludge area, and the top of the HEDN packing layer forms a clean water area. There is a water outlet on the area; a water drop rotating blade assembly is arranged in the oxygenator, and a water inlet, a return outlet and a water outlet are arranged on the oxygenator. The return outlet of the oxygenator is connected to the clean water area, and the outlet of the oxygenator The water outlet is communicated with the water distributor through the return corridor. The bioreactor of the invention has optimized processing function, highly integrated structure and high comprehensive economy, and is suitable for contact oxidation or contact adsorption reaction process, especially for anoxic denitrification process requiring precise control of dissolved oxygen.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a HEDN (High effection denitrification, high efficiency denitrification) biological reactor and a treatment method. Background technique [0002] The upgrading of sewage microbial treatment technology and equipment is an important part of the energy conservation and environmental protection industry, an important technical basis for environmental protection, and an important guarantee for green development. In recent years, the upgrading of sewage microbial treatment technology and equipment has brought about the rapid expansion of industrial scale, continuous innovation of development models, continuous expansion of service areas, and greatly improved technical level, with some technologies reaching the international leading level. As the concept of green development is deeply rooted in the hearts of the people, the pace of industrial green transformation has been furth...

AI Technical Summary

Problems solved by technology

[0010] For the existing aerobic / facultative reactors, the space utilization rate is low, the energy consumption of oxygenation is high, the degree of oxygenation cannot be accurately controlled, the sludge concentration in the microbial reaction zone is low, and the area occupied by the mud-water separation unit (secondary sedimentation tank) The present invention provides a HEDN biological reaction with optimized treatment function, highly integrated structure, and high comprehensive economy, which is suitable for contact oxidation or contact adsorption reaction process, especially for anoxic denitrification process that requires precise control of dissolved oxygen device and processing method

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