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Online automatic microorganism dosing system

An automatic and biological technology, applied in the direction of biochemical equipment and methods, biochemical instruments, aerobic process, etc., can solve the problems of slow bacterial reproduction, poor sludge adaptability, high construction investment, etc., and achieve the effect of reducing production and operation costs

Active Publication Date: 2011-06-01
宜态科水务技术(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is low in cost, it generally has the following shortcomings that are difficult to overcome: 1) slow bacterial reproduction, long cultivation period, and long system startup and debugging period; 2) less biomass per unit pool volume, low volume load, and low system volume Large, high construction investment; 3) The sludge has poor activity and low load, and its ability to degrade characteristic pollutants such as cellulose and lignin in paper industry wastewater is weak; 4) The sludge has poor adaptability, impact resistance and toxicity load capacity Poor, microorganisms are easy to inactivate, causing sludge poisoning, which leads to a complete paralysis of the system, and the recovery of the system after the paralysis is difficult, and often takes several months; 5) The operation is unstable, and it is difficult to ensure continuous and stable discharge; 6 ) has high requirements on temperature and pH, and is greatly affected by regional climate
However, microorganisms in the spore state are often directly added or even enzymes are directly added. This method is not only costly, but also has little effect. It has become a bottleneck for further development and the use of microorganisms to treat sewage. How to design a biological online automatic incubator is a top priority

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1, Continuous Biosynergy Project of Wastewater Aerobic Treatment System in a Paper Mill in Hunan

[0024] Laboratory test: The sludge in the two aerobic treatment systems was acclimatized using the effluent from the anaerobic treatment of the paper mill until the sludge concentration in the system reached 3,000 mg / l. Use the aerobic treatment system above to treat the effluent from the anaerobic treatment system of the paper mill, and control the hydraulic retention time to 6 hours. After debugging and optimization, the effluent of the two systems is about 650mg / l; in one of the aerobic treatment systems, 0.5L of bacterial solution is added every 8h, and the biosynthesis is continued through the bacterial solution, and the other system is used as a control . The test results show that after the implementation of bio-augmentation, the chemical oxygen demand (COD) of the system effluent is reduced from about 650mg / l to about 200mg / l. The test results show that t...

Embodiment 2

[0027] Example 2, Continuous Biosynergy Project of Wastewater Aerobic Treatment System of a Printing and Dyeing Factory in Guangdong

[0028] Laboratory test: use the anaerobic treatment effluent of the printing and dyeing plant to domesticate the sludge in the two sets of aerobic treatment systems until the sludge concentration in the system reaches 3,000 mg / l; use the above aerobic treatment system to treat the anaerobic treatment system Oxygen treatment system effluent, control hydraulic retention time to 8h. After debugging and optimization, the output water of the two systems is about 480mg / l; in the above-mentioned aerobic treatment system, 0.5L of bacterial solution is added every 8h, and the other system is used as a control. The test results show that after the implementation of bio-augmentation, the chemical oxygen demand (COD) of the system effluent is reduced from about 480mg / l to about 270mg / l.

[0029] Project implementation: According to the treatment scale (4,...

Embodiment 3

[0031] Example 3, a continuous biosynergy project for a certain pig factory wastewater aerobic treatment system in Shanghai

[0032] Laboratory test: use the anaerobic treatment effluent of this breeding pig factory to domesticate the sludge in the two sets of aerobic treatment systems until the sludge concentration in the system reaches 3,000mg / l; use the above two sets of aerobic treatment systems to treat the breeding pig factory Anaerobic treatment system effluent, the control hydraulic retention time is 8h. After debugging and optimization, the output water of the two systems is about 530 mg / l; in the above-mentioned aerobic treatment system, 0.5 L of bacterial solution is added every 8 hours, and the other system is used as a control. The test results show that after the implementation of bio-augmentation, the chemical oxygen demand (COD) of the system effluent is reduced from about 530 mg / l to about 380 mg / l.

[0033] Project implementation: According to the treatment sc...

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Abstract

The invention relates to an online automatic microorganism dosing system, which comprises a frame, a program controller, a culturing vat, a culture medium distribution unit, a water inlet unit, a self-circulation and water distribution unit, an aeration unit and a temperature control unit. Compared with the prior art, the online automatic microorganism dosing system has the advantages that: the culture medium distribution unit, the water inlet unit, the self-circulation and water distribution unit, the aeration unit and the temperature control unit provide various appropriate conditions for the activation of augmentation bacteria and necessary nutrition for growth and propagation to ensure that the dosing of the bioaugmentation bacteria is implemented, so as to ensure the continuous effectiveness of bioaugmentation on wastewater; meanwhile, the dosage of the bioaugmentation bacterial liquid can be automatically regulated according to the change of the chemical oxygen demand of effluent, and the production operation cost is greatly reduced.

Description

Technical field: [0001] The invention relates to a microbiology device, in particular to a biological online automatic feeding system. Background technique: [0002] At present, various wastewater biological treatment technologies generally use natural sludge to cultivate and domesticate microorganisms. Although this method is low in cost, it generally has the following shortcomings that are difficult to overcome: 1) slow bacterial reproduction, long cultivation period, and long system startup and debugging period; 2) less biomass per unit pool volume, low volume load, and low system volume Large, high construction investment; 3) The sludge has poor activity and low load, and its ability to degrade characteristic pollutants such as cellulose and lignin in paper industry wastewater is weak; 4) The sludge has poor adaptability, impact resistance and toxicity load capacity Poor, microorganisms are easy to inactivate, causing sludge poisoning, which leads to a complete paralysi...

Claims

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Application Information

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IPC IPC(8): C02F3/02
CPCC12M41/48C12M29/02
Inventor 王亦宁胡寅峰郑楠
Owner 宜态科水务技术(上海)有限公司
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