Hydrolytic acidification process method for production wastewater

A technology for the production of wastewater and hydrolysis and acidification, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of unsatisfactory performance of hydrolyzing bacteria and acidifying bacteria in converting organic matter, raw material composition Ratio, imperfect combination of process parameters, etc., to achieve the effect of conveniently controlling the PH value and improving the mixing efficiency

Inactive Publication Date: 2020-11-10
安徽省巨仁环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The hydrolytic acidification treatment method is a method between aerobic and anaerobic treatment methods. Combining with other processes can reduce treatment costs and improve treatment efficiency. The hydrolytic acidification process will Anaerobic treatment is controlled in the first and second stages of anaerobic treatment with a short reaction time, that is, under the action of a large number of hydrolytic bacteria and acidifying bacteria, insoluble organic matter is hydrolyzed into soluble organic matter, and macromolecular substances that are difficult to biodegrade are converted into easily The process of biodegrading small molecular substances can improve the biodegradability of wastewater and lay a good foundation for subsequent treatment. The existing hydrolytic acidification process is not perfect in terms of raw material ratio and process parameter combination, which leads to the current The quality of hydrolytic acidification in some hydrolytic acidification processes, the performance of the efficiency of hydrolytic bacteria and acidification bacteria in transforming organic matter is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A. The size of the raw material mixing area of ​​the hydrolytic acidification tank is 2.8m 3 , the effective volume size of the hydrolytic acidification tank is 26.5m 3 ;

[0023] B. Pass the culture solution containing hydrolytic bacteria and acidifying bacteria into the raw material mixing area of ​​the hydrolytic acidification tank, adjust the pH value to 6.8-7.2 by feeding distilled water, and detect the pH value in the hydrolytic acidification tank by sampling in different areas. 4 days of biochemical reactions;

[0024] C. The production wastewater is pumped into the hydrolysis acidification tank by the sewage lifting pump, and the production wastewater is 3m 3 The flow rate of / h is passed into the hydrolysis acidification tank;

[0025] D. Add organic fertilizer and phosphate, keep the ratio of carbon, nitrogen and phosphorus in the sewage at 400:5:1, and make the sewage stay in the hydrolysis acidification tank for 6-8 hours;

[0026] Set up a baffle type p...

Embodiment 2

[0033] A. The size of the raw material mixing area of ​​the hydrolytic acidification tank is 3m 3 , the effective volume size of the hydrolytic acidification tank is 27.5m 3 ;

[0034] B. Pass the culture solution containing hydrolytic bacteria and acidifying bacteria into the raw material mixing area of ​​the hydrolytic acidification tank, adjust the pH value to 7-7.5 by feeding distilled water, and detect the pH value in the hydrolytic acidification tank by sampling in different areas. 4 days of biochemical reactions;

[0035] C. The production wastewater is pumped into the hydrolysis acidification tank by the sewage lifting pump, and the production wastewater is 2.5m 3 The flow rate of / h is passed into the hydrolysis acidification tank;

[0036] D. Add organic fertilizer and phosphate, keep the ratio of carbon, nitrogen and phosphorus in the sewage at 380:5:1, and make the sewage stay in the hydrolysis acidification tank for 7.5 hours;

[0037] Set up a baffle type par...

Embodiment 3

[0044] A. The size of the raw material mixing area of ​​the hydrolytic acidification tank is 3.4m 3 , the effective volume size of the hydrolytic acidification tank is 27.5m 3 ;

[0045] B. Pass the culture solution containing hydrolytic bacteria and acidifying bacteria into the raw material mixing area of ​​the hydrolytic acidification tank, adjust the pH value to 6.6-7 by feeding distilled water, and detect the pH value in the hydrolytic acidification tank by sampling in different areas. 4 days of biochemical reactions;

[0046] C. The production wastewater is pumped into the hydrolysis acidification tank by the sewage lifting pump, and the production wastewater is 3m 3 The flow rate of / h is passed into the hydrolysis acidification tank;

[0047] D. Add organic fertilizer and phosphate, keep the ratio of carbon, nitrogen and phosphorus in the sewage at 480:5:1, and make the sewage stay in the hydrolytic acidification tank for 7 hours;

[0048] Set up a baffle type partiti...

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Abstract

The invention provides a hydrolytic acidification process method for production wastewater, which comprises the following steps: introducing hydrolytic bacteria and acidifying bacteria in a bacteria culture tank into a raw material mixing area, introducing distilled water to control the pH value of the raw material mixing area to 6.6 to 7.8, introducing the production wastewater into a hydrolyticacidification tank at the flow rate of 2-4m <3> / h. The fusion time of the sewage with hydrolytic bacteria and acidifying bacteria is adjusted, and the situation that part of hydrolytic bacteria and acidifying bacteria die due to the fact that the hydrolytic bacteria and the acidifying bacteria do not adapt to the change of the environment when the sewage is fused with the hydrolytic bacteria and the acidifying bacteria is reduced; the raw material mixing area can reach the optimal growth and propagation environment of hydrolytic bacteria and acidifying bacteria, so that the hydrolytic acidification quality and the organic matter conversion efficiency of the hydrolytic bacteria and the acidifying bacteria are improved.

Description

technical field [0001] The invention relates to an acidification process, which belongs to the technical field of wastewater treatment, in particular to a production wastewater hydrolysis acidification process. Background technique [0002] The hydrolytic acidification treatment method is a method between aerobic and anaerobic treatment methods. Combining with other processes can reduce treatment costs and improve treatment efficiency. The hydrolytic acidification process will Anaerobic treatment is controlled in the first and second stages of anaerobic treatment with a short reaction time, that is, under the action of a large number of hydrolytic bacteria and acidifying bacteria, insoluble organic matter is hydrolyzed into soluble organic matter, and macromolecular substances that are difficult to biodegrade are converted into easily The process of biodegrading small molecular substances can improve the biodegradability of wastewater and lay a good foundation for subsequent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/34C02F101/30
CPCC02F3/301C02F3/34C02F2101/30C02F2209/08
Inventor 姚明李双建赵晓刚王军颖谢占领杨磊
Owner 安徽省巨仁环境技术有限公司
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