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Novel anaerobic sewage deep phosphorus and nitrogen removal rotation fluidized bed processing method

A swirling flow, anaerobic hydrolysis technology, applied in the direction of anaerobic digestion treatment, can solve the problem of lack of economical and effective sewage treatment and disposal technology and methods

Inactive Publication Date: 2013-07-17
谭艾幸 +2
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  • Abstract
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Problems solved by technology

[0004] At present, my country still lacks economical and effective sewage treatment and disposal technologies and methods.

Method used

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  • Novel anaerobic sewage deep phosphorus and nitrogen removal rotation fluidized bed processing method

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Embodiment Construction

[0009] The present invention firstly, as figure 1 As shown, the supernatant and the sludge dehydration liquid are first discharged into the anaerobic hydrolysis tank device 17 through the external sewage inlet valve 23, and then the dosing pump and the control system 12 and the liquid medicine tank 13 are discharged according to the dosing pump and the control system. The microcomputer in 12 tests and counts the pH value of the reaction liquid, so as to automatically add the liquid medicine to the sewage in the anaerobic hydrolysis tank 17, and then use the agitator 14 to keep the pH value uniformly and stably within the range of 9.0-10 About 3 hours, to remove nitrogen and some metal salts, the residual substances after the reaction are discharged through the sewage valve 16, and the sewage after this reaction can be used as the feedstock of the new anaerobic sewage deep phosphorus and nitrogen removal rotary fluidized bed device The water enters the new anaerobic sewage deep...

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Abstract

The invention relates to a novel anaerobic sewage deep phosphorus and nitrogen removal rotation fluidized bed processing method, and belongs to the technical field of the environmentally-friendly sewage processing and recycling technologies. An apparatus for realizing the method comprises an anaerobic hydrolysis pool device, and a novel anaerobic sewage deep phosphorus and nitrogen removal rotation fluidized bed device. The method is characterized in that the method comprises the following steps: discharging a supernatant and a sludge dehydration liquid to the anaerobic hydrolysis pool device, reacting for about 3h, removing nitrogen and some metal salts, allowing the obtained reacted sewage to flow to the novel anaerobic sewage deep phosphorus and nitrogen removal rotation fluidized bed device as inlet water, and carrying out a series of chemical precipitation and crystallization reactions through the novel anaerobic sewage deep phosphorus and nitrogen removal rotation fluidized bed device. The method can deeply remove phosphorus and nitrogen in sewage and converts phosphorus and nitrogen dissolved in water to magnesium ammonium phosphate crystals insoluble in water in order to reach a sewage processing effect.

Description

Technical field [0001] The invention relates to a novel rotary fluidized bed treatment method for deep phosphorus and nitrogen removal of anaerobic sewage, which belongs to the technical field of environmental protection sewage treatment and resource recycling technology. Background technique [0002] The harmless disposal of sewage is a worldwide problem, how to effectively solve it is a major topic of continuous exploration in the sewage treatment industry of all countries in the world. At present, the development trend of sewage treatment technology at home and abroad is to focus on the research and development of source reduction technology, break through the technical barriers of energy saving and consumption reduction, improve the secondary pollution prevention technology, and develop the operation model of recycling. [0003] my country is a developing country. How to determine the treatment and disposal methods of sewage treatment plant sewage suitable for my country...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
Inventor 谭艾幸孙高生
Owner 谭艾幸
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