Control apparatus and method for pulse water-feeding SBR deep denitrogenation process and course

Abstract

The invention relates to a SBR bio-processing device and process for nitrogen-containing waste water, used for deep processing of industrial waste water, where an SBR reactor connects with a water inlet pipe, a water outlet pipe, a carbon source feeding pipe, and an aeration pipe; the water inlet pipe connects with a water inlet pump; the aeration pipe connects with a fan; there are blender, DO sensor, ORP sensor and pH sensor arranged in the reactor; the sensors are connected with a computer; the computer connects with a process controller; relays of the process controller are connected with valve, carbon source feeding pump and blender, respectively. And the process comprises water feeding, aeration, adding in original sewage and blending, adding in external carbon source and denitrifying, depositing, draining water, and putting aside, and is characterized in real-timely controlling aeration quantity and reaction time of SBR denitrifying process by process control parameters. And it can raise biochemical reaction rate and reduce reaction time and save cost.

Description

technical field [0001] The invention relates to an SBR biological treatment process for nitrogen-containing waste water, in particular to an SBR process capable of deep denitrification and process real-time control, and is suitable for the treatment of nitrogen-containing industrial waste water and advanced treatment of urban sewage. Background technique [0002] The problem of eutrophication is one of the most important water pollution problems faced by countries all over the world. Although the treatment rate of urban sewage in my country has been continuously improved in recent years, the problem of eutrophication caused by nitrogen and phosphorus pollution has not been fundamentally solved. There is even a growing trend. my country's large freshwater lakes and coastal waters are moderately or severely polluted with eutrophication. In the newly promulgated "Pollutant Discharge Standards for Urban Sewage Treatment Plants" in 2002, the maximum allowable discharge concentrat...

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Problems solved by technology

Solve the problems of 1) the poor denitrification effect of traditional biological denitrification technology, 2) the complex real-time control and operation of SBR method, 3) the need to add a large amount of carbon source for one-time denitrification and high operating costs, 4) the accumulation of nitrite concentration To a certain extent, it will inhibit the microorganisms in the system

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