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Efficient short-range internal-recycle integrated bioreactor with synchronous denitrifying function

A bioreactor and internal circulation technology, which is applied in biological water/sewage treatment, water pollutants, and other chemical processes, can solve problems such as weak impact resistance, long process flow, and large floor area, and achieve saving Small area, simplified process flow, simple effect control

Pending Publication Date: 2017-11-03
江西夏氏春秋环境研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional denitrification process separates the nitrification section and denitrification section. The process is long, occupies a large area, has weak impact resistance and high operating costs.

Method used

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  • Efficient short-range internal-recycle integrated bioreactor with synchronous denitrifying function
  • Efficient short-range internal-recycle integrated bioreactor with synchronous denitrifying function
  • Efficient short-range internal-recycle integrated bioreactor with synchronous denitrifying function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The HEC-fructan composite adsorbent is made of HEC (hydroxyethyl cellulose) and fructan. The steps of its specific preparation method are:

[0037] (1) dissolving pyrophosphate in water to prepare a solution with pyrophosphate concentration of 5mol / L;

[0038] (2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is mixed with A solution, and the concentration of HEC in the described A solution is 1mol / L;

[0039] (3) Sodium alginate is dissolved in water to prepare a solution with a concentration of 0.5mol / L;

[0040] (4) The sodium alginate solution is kept in a constant temperature water bath, the temperature of the water bath is 60°C, and then the fructan is added to the sodium alginate solution at a solid-to-liquid ratio of 1:10, and fully stirred to prepare B solution;

[0041] (5) Mix the quality of the above-mentioned A solution and B solution evenly, and after mixing, let it stand at 60-80°C for more than 10 hours. After standing, heat a...

Embodiment 2

[0045] The HEC-fructan composite adsorbent is made of HEC (hydroxyethyl cellulose) and fructan. The steps of its specific preparation method are:

[0046] (1) dissolving pyrophosphate in water to prepare a solution with pyrophosphate concentration of 8mol / L;

[0047] (2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is mixed with A solution, and the concentration of HEC in the described A solution is 4mol / L;

[0048] (3) Sodium alginate is dissolved in water to prepare a solution with a concentration of 1mol / L;

[0049] (4) The sodium alginate solution is kept in a constant temperature water bath, the temperature of the water bath is 80°C, and then the fructan is added to the sodium alginate solution at a solid-to-liquid ratio of 2:10, and fully stirred to prepare B solution;

[0050] (5) Mix the quality of the above-mentioned A solution and B solution evenly, and after mixing, let it stand at 60-80°C for more than 10 hours. After standing, heat and...

Embodiment 3

[0054] The HEC-fructan composite adsorbent is made of HEC (hydroxyethyl cellulose) and fructan. The steps of its specific preparation method are:

[0055] (1) dissolving pyrophosphate in water to prepare a solution with pyrophosphate concentration of 10mol / L;

[0056] (2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is mixed with A solution, and the concentration of HEC in described A solution is 5mol / L;

[0057] (3) Sodium alginate is dissolved in water to prepare a solution with a concentration of 1mol / L;

[0058] (4) The sodium alginate solution is kept in a constant temperature water bath, the temperature of the water bath is 80°C, and then the fructan is added to the sodium alginate solution at a solid-to-liquid ratio of 2:10, and fully stirred to prepare B solution;

[0059] (5) Mix the quality of the above-mentioned A solution and B solution evenly, and after mixing, let it stand at 60-80°C for more than 10 hours. After standing, heat and ev...

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Abstract

The invention discloses an efficient short-range internal-recycle integrated bioreactor with a synchronous denitrifying function. The efficient short-range internal-recycle integrated bioreactor with the synchronous denitrifying function comprises a water collecting tank, and a water inlet of the water collecting tank is communicated with a wastewater outlet. The efficient short-range internal-recycle integrated bioreactor is provided with the water accumulation tank, an adsorption tank, a settling tank, a mixing tank, an aerating-aerobiotic clarifying system and a clean water tank along a wastewater purifying direction, a first wastewater lifting pump is arranged between the water collecting tank and the adsorption tank, a second wastewater lifting pump is arranged between the mixing tank and the aerating-aerobiotic clarifying system, the settling tank is communicated with a sludge tank, the aerating-aerobiotic clarifying system comprises an aerobiotic three-phase separator and an aerating clarifying tank, the aerobiotic three-phase separator is arranged inside the aerating clarifying tank and communicated with the adsorption tank through a sledge backflow pipe, an aerating hose is arranged at the bottom of the aerating clarifying tank and connected with a fan through an air pipe, and a first electrically-controlled flow valve is arranged on the air pipe. The efficient short-range internal-recycle integrated bioreactor with the synchronous denitrifying function has the advantages that technological processes are simplified greatly, about 1 / 3 of floor space of a sewage treatment facility is saved, investment on pipelines is reduced, and convenience in operation and management and simplicity in controlling are realized.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a short-range high-efficiency synchronous denitrification internal circulation integrated bioreactor. Background technique [0002] The traditional activated sludge method is a relatively mature sewage biological treatment technology. In the aerobic activated sludge biological treatment system, the key factors are mainly sludge concentration (amount of microorganisms), dissolved oxygen efficiency (biological activity) And sedimentation efficiency (mud-water separation effect), that is to say, the traditional aerobic activated sludge process will involve the contact and separation of gas, liquid and solid three-phase. In the traditional sewage treatment process, the aeration and biological oxidation processes are carried out at the same time, but they are separated from the sedimentation process, and the aeration oxidation and sedimentation are in different tanks. In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14B01J20/24B01J20/30C02F101/16C02F101/10
CPCB01J20/24C02F9/00C02F1/286C02F2001/007C02F2101/105C02F2101/16C02F3/308C02F3/303
Inventor 孙燕吴施婧李燕英檀威杨俊
Owner 江西夏氏春秋环境研究院有限公司
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