Chemistry strengthened biological fluidizing recombination reactor

Abstract

A chemically intensified composite fluidized bioreactor for reclaiming sewage is composed of an internally circulating three-phase biologic fluidized bed with three-phase separator and a reaction region consisting of aerobic fluidized region and anoxic region, and an electrolyzing air-floating reactor for efficient solid-liquid separation and with a group of plate electrode in each of its solid-liquid raising-up region and air-floating clarifying region. Its advantage is high reclaiming effect.

Description

technical field [0001] The invention belongs to the technical field of water treatment devices for environmental protection, in particular to a chemically enhanced biological fluidized composite reactor for sewage treatment and resource utilization. Background technique [0002] Our country will face the severe situation of water environment pollution for quite a long period of time in the future. According to the long-term target outline of China's environmental protection, in 2010, the sewage treatment rate of cities with municipalities in the country shall not be lower than 60%, and the sewage treatment rate of key cities shall not be lower than 70%. my country needs to achieve a treatment rate of no less than 60% of urban domestic sewage within 5 years, and basically discharge industrial wastewater up to standard. To achieve this goal, a large number of sewage treatment plants need to be built, and treatment technologies with high efficiency and low energy consumption ar...

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Problems solved by technology

[0010] In order to solve the problem that the solid-liquid separation effect of the traditional three-phase biological fluidized bed with internal circulation is not ideal, and the effluent of ammonia nitrogen cannot meet the discharge standard (secondary standard), the present invention provides a chemically enhanced biological fluidized composite reactor, which is characterized in In that: the composite reactor includes an internal circulation three-phase biological fluidized bed with a three-phase separator, and an electrolytic air flotation reactor coupled at the top of the fluidized bed to realize high-efficiency solid-liquid separation, and the fluidized bed The reaction zone is mainly based on the aerobic fluidized reaction zone and the anoxic zone, and at least one set of polar plates are respectively arranged in the solid-liquid rising zone and the air flotation clarification zone of the electrolytic air flotation reactor

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