Anoxic denitrification fluidized bed treatment apparatus

A treatment device and fluidized bed technology, applied in anaerobic digestion treatment, biological treatment equipment, biological water/sewage treatment, etc., can solve the problems of damaged pump head, pipeline blockage, packing loss, etc., to increase volume load and avoid The effect of short-circuiting the water flow and increasing the microbial biomass

CN108275774AActive Publication Date: 2018-07-13CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-07-13

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Abstract

The invention relates to an anoxic denitrification fluidized bed treatment apparatus, which comprises a reactor main body (4), an ultrasonic wave oscillator (containing a vibration plate (19)) and a nitrogen generation system (5), wherein the water inlet (20) of a circulation pump (3) is positioned in a filtration screen (17) near a tower head, the pore size of the filtration screen (17) is slightly smaller than the diameter of a biological filler so as to effectively prevent the biological filler in the reactor from entering a circulation system, the ultrasonic wave oscillator is arranged nearby, sludge originally attached to the filtration screen (17) is dispersed and peeled off through the direct action and the indirect action such as the cavitation effect, the direct inflow effect andthe acceleration effect of the ultrasonic wave oscillator on liquids and dirt so as to clean the filtration screen (17) to make the circulation system operate stably for a long time, and with a waterflow distributor (9) arranged on the bottom portion of the reactor main body (4), the problems of non-uniform influent distribution of the reactor main body and the like can be effectively solved, theshort circuit of water flow can be avoided, and the removal load of organic matters and nitrates can be improved.
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Description

technical field

[0001] The invention relates to the technical fields of chemical industry and environmental protection, in particular to an anoxic fluidized bed device for waste water treatment, especially an anoxic denitrification fluidized bed treatment device. Background technique

[0002] In recent years, nitrogen pollution in the field of water treatment has become one of the social hot spots. With the increasingly serious problem of eutrophication in China's water bodies and the improvement of future wastewater discharge standards, the removal of nitrogen in water has become one of the key issues in the field of water treatment. How to remove nitrate nitrogen from water economically, efficiently and safely, and develop an efficient and stable wastewater enhanced denitrification technology has become an urgent technical demand in the field of wastewater treatment.

[0003] Today's wastewater treatment is faced with high standard discharge requirements, such as the Unit...

Examples

Embodiment Construction

[0054] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0055] like figure 1Shown in -4, the wastewater treatment device of the present invention is an anoxic denitrification fluidized bed treatment device is a full-automatic high-efficiency organic denitrification device composed of a reactor main body (anoxic fluidized bed) 4, an ultrasonic oscillator and a nitrogen making system 5, etc. A wastewater treatment device, specifically as follows: an anoxic denitrification fluidized bed treatment device, comprising:

[0056] Reactor body (i.e. anoxic fluidized bed) 4, including tower body 4-1 and tower head 4-2;

[0057] The bottom of the tower body 4-1 is equipped with a water flow distributor 9,

[0058] The water flow distributor 9 includes a bottom plate 9-2 provided with several strip-shaped channels 9-1, and the strip-shaped channels 9-1 are strip-shaped through holes, which are evenly and parallelly distribu...