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Gravity flow denitrification filter

A denitrification filter, gravity flow technology, applied in filtration treatment, anaerobic digestion treatment, chemical instruments and methods, etc., can solve problems such as poor backwashing effect

Pending Publication Date: 2021-04-09
河南冠宇环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a gravity flow denitrification filter, in order to overcome the defect of poor backwashing effect of existing denitrification filters, so as to lay a certain technical foundation for the stability of denitrification effect in the process of sewage treatment

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Embodiment

[0030] Such as Figure 1-4 As shown, the gravity flow denitrification filter provided by this application is mainly suitable for the application of sewage after secondary biochemical treatment in sewage treatment plants, specifically including:

[0031] The filter body 1, the water distribution system above the filter body 1, the filter system below the filter body 1, and the drain pipe 10 at the bottom of the filter body 1 for discharging the treated water;

[0032] The water distribution system includes: a water distribution main pipe 2 and a water distribution branch pipe 3 extending downward on the water distribution main pipe 2; The sealed operating environment can better prevent the oxygen in the air from dissolving into the sewage, thereby destroying the anaerobic environment required for denitrification and denitrification; in actual operation, in order to avoid the occurrence of siphon and air pressure fluctuations, the Several vent holes 4 of φ10mm are opened on the...

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Abstract

The invention belongs to the technical field of sewage treatment equipment for environmental engineering and municipal engineering, and particularly relates to a patent application of a gravity flow denitrification filter. The filter specifically comprises a filter body, a water distribution system arranged at the upper part in the filter body, a filter system arranged at the lower part in the filter body, and a drain pipe positioned at the bottom of the filter body and used for draining treated water; the water distribution system comprises a water distribution main pipe and water distribution branch pipes extending downwards on the water distribution main pipe. The filter system comprises a filter material layer which is positioned above a filter plate and consists of a filter material, and filter heads arranged on the filter plate; the filter heads are uniformly distributed on the filter plate and consist of umbrella-shaped filter caps with filter holes and hollow filter rods which penetrate through the filter plate and are arranged below the filter caps; and the filter material is naturally laid. By improving the water inlet and distribution system of the denitrification filter, the anoxic environment of denitrification nitrogen removal is effectively guaranteed, carbon source waste is reduced, and the operation cost is saved.

Description

technical field [0001] This application belongs to the technical field of sewage treatment equipment for environmental engineering and municipal engineering, and specifically relates to a patent application for a gravity flow denitrification filter. Background technique [0002] In the effluent discharge standard of the sewage treatment plant, an important index is the total nitrogen content index in the treated sewage. In the prior art, engineering measures commonly used to remove total nitrogen in sewage include conventional anoxic denitrification tanks and advanced denitrification filter tanks. Among them, the basic principle of denitrification by the denitrification filter is: use the denitrification of microorganisms in the biofilm attached to the filter material in the reactor to remove the total nitrogen in the sewage, and at the same time, the filter material in the reactor removes the suspended nitrogen in the water through physical filtration. materials, so that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16
CPCC02F3/28C02F1/001C02F2101/16C02F2303/14
Inventor 马浩亮何新生楚志永时高明姜伟平白洪涛王洪艳王京玉张相辉杨丹青谢雨许东
Owner 河南冠宇环保科技有限公司
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