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Device and process for advanced treatment of immobilized functional microbe wastewater

A technology for advanced treatment of functional microorganisms, applied in the field of advanced treatment devices for immobilized functional microbial wastewater, which can solve problems such as unstable process operation, difficult upgrading and transformation, and large capital investment, and achieves small footprint, good removal effect, and infrastructure construction The effect of less investment

Active Publication Date: 2016-12-14
湖州至美生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an advanced treatment device for immobilized functional microbial wastewater in order to solve the common problems in the advanced treatment process of effluent after secondary treatment of sewage, such as unstable process operation, substandard effluent, difficulty in upgrading or large capital investment, etc. and craft

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  • Device and process for advanced treatment of immobilized functional microbe wastewater
  • Device and process for advanced treatment of immobilized functional microbe wastewater

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preparation example Construction

[0040] 1. Preparation of embedding agent: add 50-100g of polyvinyl alcohol and 5-20g of sodium alginate into 0.2L of water and mix, then place in hot water at 95°C to dissolve in a water bath to prepare embedding agent;

[0041]2. Preparation of the mixed solution: Add 5-20g of magnet powder with a particle size of 0.03-0.05mm and 5-20g of powdered activated carbon with a particle size of less than 0.075mm into the embedding agent, and mix well to obtain a mixed solution;

[0042] 3. Addition of bacteria slime: Suspend 60g of bacteria slime with 20ml0.9wt% sodium chloride deionized water, then add it to the mixed solution cooled to room temperature, and filter after mixing evenly; Anaerobic and facultative microorganisms such as nitrifying denitrification bacteria and high-efficiency decolorizing bacteria, or high-efficiency functional microorganisms targeting characteristic pollutants such as high-efficiency ammonia-oxidizing bacteria, high-efficiency nitrifying bacteria, high...

example 1

[0059] The comprehensive wastewater of a textile dyeing and finishing enterprise in Zhejiang, the raw water COD is about 1400mg / L, the chroma is about 1000 times, the SS is about 300mg / L, and the pH is about 8.5. After the secondary treatment, the COD of the biochemical treatment effluent is about 230mg / L, the pH is about 7.5, the chroma is about 250 times, and the SS is about 90mg / L. The effluent quality does not meet the water quality standards.

[0060] The secondary biochemical effluent of this enterprise is used as the influent of the wastewater advanced treatment process of the present invention, and the DOcr Immobilized microspheres of degrading bacteria, the filling rate (volume) is 30%-50%.

[0061] After being treated by the wastewater advanced treatment process of the present invention, the effluent chroma is ≤25 times, CODcr≤50mg / L, SS≤20mg / L, pH is 7.5, and meets the "Water Pollutant Discharge Standard for Textile Dyeing and Finishing Industry" (GB4287-2012) The s...

example 2

[0063] A sewage treatment plant mainly produces industrial sewage, accounting for more than 80%. The industrial sewage is mainly synthetic leather DMF wastewater and textile wastewater, including some pharmaceutical wastewater and electroplating wastewater. The main influent water quality indicators are: COD Cr ≤450mg / L, BOD 5 ≤160mg / L, SS≤300mg / L, NH 4 + -N≤25mg / L, pH6-9, chroma≤80 times, total phosphorus≤5mg / L, total nitrogen≤35mg / L. The existing treatment process is fine grid + cyclone grit chamber + adjustment, sedimentation tank + hydrolysis acidification tank + improved reaction tank + mechanical reaction tank (flocculation tank) + fiber filter (D-type filter) + ClO 2 Disinfect pool. COD of the effluent after the existing process of the sewage treatment plant Cr Average 65mg / L, NH 4 + -N average 10mg / L, total nitrogen average 20mg / L, COD cr , NH 4 + -N, total nitrogen cannot meet the relevant effluent discharge standards.

[0064] The effluent of the sewage tr...

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Abstract

The invention provides a device and process for advanced treatment of immobilized functional microbe wastewater and belongs to the technical field of sewage treatment. The treatment device comprises an intermediate regulating tank, a facultatively anaerobic BAFB reactor, an aerobiotic BAFB reactor and a sedimentation tank which are connected in sequence. The treatment process comprises the steps that 1, physical-chemical treatment is performed; 2, a facultatively anaerobic BAFB process is performed; 3, an aerobiotic BAFB process is performed; 4, a sedimentation and reflux process is performed; 5, mud-water separation is achieved through the sedimentation tank, and discharged water reaching the standard is discharged. The existing problems of low substrate concentration, microbial biomass limitation, biotoxin inhibited microbe growth and the like of secondarily treated discharged water can be well solved. In addition, the device and the process for advanced treatment of immobilized functional microbe wastewater have the advantages of being good in pollutant removal effect, simple in treatment process, convenient to operate and manage, small in occupied area, low in infrastructure investment, free of peculiar smell and stable in discharged water quality and meets the discharge requirements.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an advanced treatment device and process for immobilized functional microbial wastewater. Background technique [0002] my country is a resource-based water-scarce country, and the per capita water resources are only 1 / 4 of the world's per capita share; at the same time, my country is also a water-quality-based water-short country. Pollution increases the pressure on water resources and restricts economic and social development. On the one hand, with the increasingly stringent national sewage treatment standards, many existing sewage treatment equipment in the city can no longer meet the relevant sewage discharge standards, and these sewage treatment equipment urgently need to be upgraded; on the other hand, sewage treatment plants are upgrading. The standard renovation is restricted by many factors, such as capital, floor area, technological limitations, etc...

Claims

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Application Information

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IPC IPC(8): C02F3/30
CPCC02F3/302C02F2301/043C02F2301/046
Inventor 李美娣朱强周俊利
Owner 湖州至美生物科技有限公司
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