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Wastewater advanced-denitrification treatment system and wastewater advanced-denitrification treatment technology

A wastewater treatment system, deep denitrification technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, anaerobic digestion treatment, etc., can solve problems such as the effect of denitrification, achieve continuous and stable advanced treatment, The effect of continuous water inflow and less residual sludge

Active Publication Date: 2019-05-21
CEEP CO LTD
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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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  • Wastewater advanced-denitrification treatment system and wastewater advanced-denitrification treatment technology

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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 wastewater advanced-denitrification treatment system. The system comprises a reactor, a water discharge mother tube, a wastewater inlet pipeline, a wastewater outlet pipeline, a circulating pipeline, a backwashing water inlet pipeline, a backwashing water outlet pipeline, a dosing pipeline, a filler adding pipeline, an inlet water tank, an outlet water tank and a controlcabinet, wherein a filler layer is arranged in the reactor to effectively remove nitrogen in sewage, addition of a carbon source is not needed in the whole process, and the control cabinet is used tocarry out interlock control on electric valves, pumps and detectors arranged on relevant pipelines. The invention also discloses a wastewater advanced-denitrification treatment technology. The automatic control of the whole system is realized through multiple feedback adjustments. Sulfur autotrophic denitrification using reduced sulfur as an electron donor is carried out to treat the nitrogen-containing wastewater and 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 Applications(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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