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7-aminocephalosporanic acid production wastewater treatment method

A technology for the production of aminocephalosporanic acid and waste water, which is applied in water/sewage treatment, neutralized water/sewage treatment, multi-stage water/sewage treatment, etc. It can solve the problems of low treatment efficiency and unstable discharge of ammonia nitrogen, and achieve the goal of treatment High efficiency, small amount of work, simple operation

Inactive Publication Date: 2016-10-12
焦作健康元生物制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the treatment process of 7-aminocephalosporanic acid production wastewater mostly adopts CASS-based biochemical treatment, but after years of operation, the treatment efficiency is relatively low, and the ammonia nitrogen cannot be discharged stably.

Method used

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  • 7-aminocephalosporanic acid production wastewater treatment method

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Embodiment 1

[0021] A kind of treatment method of 7-aminocephalosporanic acid production waste water, production process such as figure 1 As shown, it includes the following steps: injecting 7-aminocephalosporanic acid production wastewater into the regulating tank, adjusting the pH to 6; then injecting into the anoxic biochemical pool of section A--the aerobic biochemical pool of section O, and performing A / O process biochemical Treatment; MLSS in A / O process can reach 8500mg / L; in nitrification reaction, TKN / MLSS loading rate can reach 0.06gTKN / (gMLSS·d); sludge loading rate can reach 0.2KgBOD 5 / KgMLSS·d; the sludge age can be 3 times of the generation time of nitrifying bacteria; the total nitrogen concentration of sewage influent can reach 500mg / L; in the anoxic biochemical pool of section A, the DO value is controlled at 0-0.2mg / L; O In the aerobic biochemical pool, the DO value is 2-4 mg / L; the hydraulic retention time of nitrification reaction is 6h, and the denitrification hydraul...

Embodiment 2

[0023] A kind of treatment method of 7-aminocephalosporanic acid production waste water, production process such as figure 1 As shown, it includes the following steps: injecting 7-aminocephalosporanic acid production wastewater into the regulating tank, adjusting the pH to 8; then injecting into the anoxic biochemical pool of the A section-the aerobic biochemical pool of the O section, and performing the A / O process biochemical Treatment; MLSS in A / O process can reach 8500mg / L; in nitrification reaction, TKN / MLSS loading rate can reach 0.06gTKN / (gMLSS·d); sludge loading rate can reach 0.2KgBOD 5 / KgMLSS·d; the sludge age can be 3 times of the generation time of nitrifying bacteria; the total nitrogen concentration of sewage influent can reach 500mg / L; in the anoxic biochemical pool of section A, the DO value is controlled at 0-0.2mg / L; O In the aerobic biochemical pool section, the DO value is 2-4 mg / L; the hydraulic retention time of nitrification reaction is 6h, and the deni...

Embodiment 3

[0025] A kind of treatment method of 7-aminocephalosporanic acid production waste water, production process such as figure 1 As shown, it includes the following steps: injecting 7-aminocephalosporanic acid production wastewater into the regulating tank, and adjusting the pH to 10; Treatment; MLSS in A / O process can reach 8500mg / L; in nitrification reaction, TKN / MLSS loading rate can reach 0.06gTKN / (gMLSS·d); sludge loading rate can reach 0.2KgBOD 5 / KgMLSS·d; the sludge age can be 3 times of the generation time of nitrifying bacteria; the total nitrogen concentration of sewage influent can reach 500mg / L; in the anoxic biochemical pool of section A, the DO value is controlled at 0-0.2mg / L; O In the aerobic biochemical pool, the DO value is 2-4 mg / L; the hydraulic retention time of nitrification reaction is 6h, and the denitrification hydraulic retention time is 2h; the optimum pH of nitrification reaction is 8.4, and the optimum pH value of denitrification reaction is 7.5; The...

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Abstract

The invention discloses a method for treating waste water produced by 7-aminocephalosporanic acid. The waste water is injected into a regulating tank to adjust pH, and then undergoes A / O process biochemical treatment and mud-water separation, and then conducts solid-liquid treatment after flocculation reaction and precipitation. Separation, the separated water is discharged after testing up to the standard, and the remaining sludge enters the automatic high-pressure plate frame for dehydration treatment. The beneficial effects of the present invention are: the present invention has simple process, small engineering quantity, short construction period, small project investment, and the treatment efficiency of total nitrogen and ammonia nitrogen can be as high as 95%, stable water output, simple operation and convenient maintenance. Greatly improved the economic benefits of the enterprise.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a treatment method for 7-aminocephalosporanic acid production wastewater. Background technique [0002] The sewage treatment rate has become an important symbol of a regional civilization. In the past 200 years, various advanced technologies have been developed from the original natural treatment of urban sewage treatment to the simple use of treatment, advanced wastewater treatment and reuse. From the traditional activated sludge oxidation ditch process to A / O, A2 / O, AB, SBR (including CCAS) and other technologies to meet the different requirements of water. At present, the treatment process of 7-aminocephalosporanic acid production wastewater mostly adopts CASS-based biochemical treatment, but after years of operation, the treatment efficiency is relatively low, and the ammonia nitrogen cannot be discharged stably. Contents of the inventio...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/5245C02F1/56C02F1/66C02F3/30C02F2001/007
Inventor 潘新苗张书汁袁建光王新峰詹艳艳
Owner 焦作健康元生物制品有限公司
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