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Process and device for conducting deep denitrification on nitrogen-containing organic waste water

A technology for deep denitrification and organic wastewater, applied in the direction of water pollutants, multi-stage water treatment, biological water/sewage treatment, etc., can solve the problem that the effluent COD cannot be guaranteed, and achieve high carbon source utilization and low dosage less, low operating costs

Inactive Publication Date: 2016-04-20
SHANGHAI JINGYU ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method only guarantees the discharge of total nitrogen up to the standard, but the COD of the effluent cannot be guaranteed, especially when the type of carbon source added is not suitable, the COD of the effluent is generally as high as 300mg / L or more

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  • Process and device for conducting deep denitrification on nitrogen-containing organic waste water
  • Process and device for conducting deep denitrification on nitrogen-containing organic waste water

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Embodiment

[0025] As attached figure 2 As shown, a special device for deep denitrification of nitrogen-containing organic wastewater includes a biochemical reaction tank 2, a deep denitrification reaction tank 3 and a membrane treatment unit 4.

[0026] The original water tank 1 is connected to the biochemical tank 2, and the connecting pipeline is equipped with a water inlet pump 6; the clear liquid output end of the biochemical tank 2 is connected to the deep denitrification reaction tank 3; the clear liquid output end of the deep denitrification reaction tank 3 is connected to the membrane processing unit 4 , The concentrated liquid output end of the membrane processing unit 4 is connected to the concentrated liquid tank 5, and the clear liquid output end is connected to the discharge port.

[0027] The biochemical reaction tank 2 is divided into several denitrification and nitrification compartments, the denitrification zone is equipped with a stirring device, the nitrification zone is e...

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Abstract

The invention provides a process and device for conducting deep denitrification on nitrogen-containing organic waste water. The deep denitrification process includes the steps that the nitrogen-containing organic waste water is sent into a biochemical reaction pool, biological denitrification is conducted, ammonia nitrogen, total nitrogen and organic matter in the water are removed, outlet water enters a deep denitrification system, the total nitrogen and the organic matter in the water are further removed, outlet water enters a membrane treatment system, intercept separation is conducted, organic matter, SS and the like in the water are removed, and finally outlet water is subjected to up-to-standard release. According to the process and device, the nitrogen-containing organic waste water is treated through a method combing a biological method and a membrane separation method, outlet water TN is 40 mg / L and below, COD is 60 mg / L and below, nitrogen removal efficiency is high, the carbon source feeding amount is small, and operation cost is low.

Description

Technical field [0001] The invention belongs to the technical field of wastewater treatment, and specifically relates to a process and device for deep denitrification of nitrogen-containing organic wastewater. It is suitable for sewage treatment with deep denitrification requirements such as landfill leachate and industrial wastewater, and is especially suitable for total nitrogen compliance. Disposal of emissions. Background technique [0002] Excessive nitrogen can easily cause eutrophication of water bodies. In recent years, water eutrophication has become one of the important water quality issues in the field of water environment. The traditional treatment technology of nitrogen-containing organic wastewater is denitrification through the biochemical process of aerobic nitrification and anoxic denitrification, but the final effluent of this process The total nitrogen is generally difficult to meet the existing emission requirements, sometimes as high as 100mg / L. For some dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16
CPCC02F9/00C02F1/001C02F1/44C02F3/00C02F3/1268C02F3/28C02F2101/16C02F2301/08
Inventor 夏俊方胡君杰方小琴周耀水韩粒肖龙博陆魁尚荣
Owner SHANGHAI JINGYU ENVIRONMENT ENG