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A deep denitrification wastewater treatment system and process

A wastewater treatment system and deep denitrification technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, anaerobic digestion treatment, etc. The effect of less equipment and less residual sludge

Active Publication Date: 2021-11-26
CEEP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many factors affecting the sulfur autotrophic denitrification process, and the control of the critical point has a great influence on the denitrification effect of the whole system.

Method used

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  • A deep denitrification wastewater treatment system and process

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] A deep denitrification wastewater treatment system is disclosed in the embodiment, which mainly includes a water inlet tank 1, an inlet water pump 2, a reactor 3, a backwash water pump 9, an outlet water tank 10, and a control cabinet 37, and a NO 3 - -N measurer 23 and liquid level gauge 27, pressure sensor 26 and DO measurer 29 are installed on the reactor 3, NO is installed on the water outlet tank 10 3 - - N meter 24, pH sensor 25 and liquid level gauge 28.

[0030] Specifically, the bottom of the reactor 3 is provided with a water inlet 7 and a backwash water inlet 8, and the reactor 3 is equipped with a water distributor 4, a coarse sand layer 5 and a packing layer 6 from bottom to top, and the upper part of the reactor 3 is provided with an outlet Nozzle 11 and filling inlet. The water outlet 11 is provided with a water collecting devi...

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Abstract

The invention discloses a deep denitrification wastewater treatment system, which comprises a reactor, a jelly outlet pipe, a wastewater inlet pipeline, a wastewater outlet pipeline, a circulation pipeline, a backwash water inlet pipeline, a backwash water outlet pipeline, and a chemical dosing system. Pipelines, filler dosing pipelines, water inlet tanks, water outlet tanks and control cabinets. Among them, the reactor is equipped with a filler layer, which can effectively remove nitrogen in the sewage. The whole process does not need to add carbon sources, and passes through the control cabinet Perform interlock control on the electric valves, pumps and detection devices configured in the relevant pipelines. Furthermore, the present invention also discloses a deep denitrification sewage treatment process, which realizes the automatic control of the whole system through various feedback adjustments. The invention treats nitrogen-containing waste water through sulfur autotrophic denitrification using reduced sulfur as an electron donor, and can realize effective automatic control of the critical point.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to the nitrogenous wastewater treatment technology. Background technique [0002] With the rapid development of industry and agriculture, a large amount of pollutants have been discharged into water bodies, among which nitrate has been widely used as the main pollutant, and there is a trend of increasing year by year. Excessive nitrate in wastewater seriously affects the natural environment and human health, so how to efficiently remove nitrate in water has become an urgent problem to be solved. [0003] At present, the common nitrate treatment technology is biological denitrification technology. The traditional heterotrophic denitrification technology needs to add a large amount of organic carbon sources, and there are problems such as high cost, subsequent secondary pollution, and large sludge production. The autotrophic denitrification method can use inorga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F3/34
Inventor 张伟高占平李激李娜许瑞青李伟王燕吕金泽郑凯凯
Owner CEEP CO LTD
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