UAD biological filter tower system based on sulfur autotrophy and denitrification method

A biological filter tower, sulfur autotrophy technology, applied in biological treatment adjustment methods, biological treatment devices, chemical instruments and methods, etc., can solve difficult to achieve denitrification treatment effect, high operating cost, secondary pollution, organic matter content Low problems, to achieve the effect of high film hanging efficiency, high processing load, and reduced equipment volume

Pending Publication Date: 2021-06-08
CEEP CO LTD
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Problems solved by technology

[0003] The content of biodegradable organic matter in the secondary biochemical section of the existing old sewage treatment plant (station) is low, that is, when the C/N is low, the original carbon source in the water can no longer meet the requirements of biological denitrification and denitrification. Additional organic carbon sources need to be added to the water
This brings about problems such as high operating costs and secondar

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  • UAD biological filter tower system based on sulfur autotrophy and denitrification method
  • UAD biological filter tower system based on sulfur autotrophy and denitrification method
  • UAD biological filter tower system based on sulfur autotrophy and denitrification method

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Embodiment Construction

[0027] The present invention is further illustrated in conjunction with the accompanying drawings and specific embodiments:

[0028] Such as figure 1 As shown, a sulfur-based UAD biofine tower system comprising an inlet unit, a liquid-free unit, a biofilm reaction unit, a collecting water supply unit.

[0029] Based on the device, the early stage needs to carry out microbial culture in the early stage, and the microorganisms employed are taken from the strain, and the nitrogen-containing wastewater is used to cultivate. After the sludge was cultured in about two weeks, the sulfurized culture of the UAD biofine tower was carried out, domesticated and cultured with digested sludge with self-numerous properties. During the culture, a nutrient solution is added every two days and replaces the supernatant. The main component of the nutrient solution is a wastewater mixed with sodium carbonate, sulfur solution, and the domestication time is around 14d, and the water NO is measured. 3 -N...

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Abstract

The invention relates to the technical field of sewage treatment and denitrification, and discloses a UAD biological filter tower system and method based on sulfur autotrophy, and the biological filter tower system comprises a water inlet mixing unit, a nitrogen removal uniform distribution unit, a biological membrane reaction unit and a water collection and drainage unit. Furthermore, the invention discloses a denitrification method based on the system. According to the method, autotrophic denitrifying bacteria are fixed in a high-specific-surface-area filler of an upflow biological filter tower, sulfur powder is used as an electron donor required by autotrophic denitrification, and nitrate nitrogen in sewage is degraded and removed under the condition that an organic carbon source does not need to be additionally added. The system has the advantages of high nitrogen removal efficiency, high treatment load, excellent effluent quality, intelligent operation control and the like, and is suitable for nitrogen removal treatment of high nitrate nitrogen industrial wastewater and nitrogen removal upgrading of municipal sewage secondary effluent.

Description

Technical field [0001] The present invention relates to the field of sewage denitrification treatment, discloses a sulfur-based UAD (UP-Flowautotrophic Denitrification) biofiltration tower system and a denitrification method. Background technique [0002] Eutrophication is a global phenomenon in recent decades. The increase in the emissions of nutrient elements in the water in the water and lakes tends to be rich. When eutrophication occurs in the water body, some algae has enormous, causing deterioration of water quality, full of fish smell, destroying the stability of the water ecosystem, which will seriously affect urban water supply and drinking water safety. The fundamental cause of eutrophication is the increase in nitrogen and phosphorus of nutrients. The second-stage treatment of urban sewage plants, the water and high nitrogen nitrogen industrial wastewater is the main source of sewage nitrogen emissions. [0003] In the existing old sewage treatment plant (station), the...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/34C02F3/28C02F101/16
CPCC02F9/00C02F3/006C02F2101/163C02F3/345C02F3/2853C02F2209/16C02F2201/007C02F2203/006C02F1/001
Inventor 蔡诚安源杨名中朱来松高占平贺柏林
Owner CEEP CO LTD
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