Combination type treatment method for pharmaceutical waste water

A technology for chemical and pharmaceutical wastewater and a treatment method, applied in the field of water treatment, can solve problems such as large differences in operating costs, and achieve the effects of reducing subsequent treatment load, stable operation, and small capital investment.

Inactive Publication Date: 2012-02-01
WUXI TONGYUAN ENVIRONMENTAL PROTECTION TECHNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are various methods, the processing effects are not the same, and the operating costs are also quite different.

Method used

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  • Combination type treatment method for pharmaceutical waste water
  • Combination type treatment method for pharmaceutical waste water
  • Combination type treatment method for pharmaceutical waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: the pretreatment method of high-concentration wastewater

[0050] 1) Grease trap treatment unit: remove water-insoluble organic solvents;

[0051] 2) Regulating tank processing unit: adjust PH to 2-3, control hydraulic retention time;

[0052] 3) New internal electrolysis and auxiliary fenton treatment unit: the pH of the influent is 2-3, the residence time is 2-4h, and the dosage of fenton is 1000-2000mg / l for hydrogen peroxide.

[0053] Among them, the new internal electrolysis and auxiliary fenton processing unit refers to:

[0054] Internal electrolysis technology is currently an ideal process for treating high-concentration organic wastewater, also known as internal electrolysis. It uses the internal electrolytic material filled in the wastewater to generate a 1.2V potential difference to electrolyze the wastewater to achieve the purpose of degrading organic pollutants without electricity. The internal electrolysis materials used in the traditional...

Embodiment 2

[0058] Embodiment 2: further treatment of waste water

[0059] 1) ABR acidification pool: the effective residence time is 16-24h (depending on the water quality), the main feature is to use its own hydraulic deflection for stirring, without additional mechanical stirring;

[0060] 2) Anaerobic treatment unit: In the anaerobic reactor, the organic matter in the degraded wastewater is biogas, and the volume load is 3-5kgCOD / (m 3 d);

[0061] 3) MBBR and activated sludge treatment unit: the front section adopts mud membrane MBBR for high load section, the rear section adopts activated sludge method for low load section, high load MBBR section, volume load 2.5-4kgCOD / (m 3 d), the filler used is mesh filler (size 10*10*10mm), low-load activated sludge section, volume load 1.5kgCOD / (m 3 d), sludge concentration 3-3.5gMLSS / L;

[0062] 4) Terminal physical and chemical treatment unit: a sedimentation tank is used to remove the suspended sludge entrained in the biochemical effluent,...

Embodiment 3

[0070] Embodiment 3: preferred treatment process

[0071] The preferred wastewater treatment steps are as follows:

[0072] 1) Grease separation tank treatment unit: The grease separation sedimentation tank divides chemical and pharmaceutical wastewater into high-concentration wastewater and low-concentration wastewater. The high-concentration wastewater is first treated with a grease separation sedimentation tank to remove harmful substances that can be precipitated such as chloroform and lighter than water. organic solvents, low-concentration waste water directly leads to the grid / water collection well of step 6);

[0073] 2) Wastewater adjustment pool: store high-concentration wastewater in the high-concentration wastewater adjustment pool, adjust the pH value to 2-3, and stay for 48 hours;

[0074] 3) New internal electrolysis and auxiliary fenton treatment unit: use iron-carbon contained filler to partially degrade organic matter under electrochemical action, the pH of t...

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Abstract

The invention discloses a combination type treatment method for pharmaceutical waste water, which belongs to the technical field of water treatment. The method comprises the following steps of: first, improving the biodegradability of high concentration of waste water by adopting an efficient pretreatment technology, and finally removing a main pollutant COD (Chemical Oxygen Demand) in the waste water until reaching the standards. The invention has the advantages of stable running, flexible operation, convenience for maintenance, and strong impact resistance capability and strain capability for the variation of water inlet quantity and water quality.

Description

Technical field: [0001] The invention relates to a combined treatment method for chemical and pharmaceutical wastewater, belonging to the technical field of water treatment. Background technique: [0002] Since the reform and opening up, China's economy has developed rapidly and achieved world-renowned achievements. The industrious Chinese people have created an astonishing speed of economic development, and at the same time "created" the speed of environmental pollution and the speed of resource depletion. Keeping pace with the times, the country has proposed a sustainable development strategy. How to build an environment-friendly and resource-saving society is a problem that every Chinese descendant must face. In this environment, taking the lead in realizing and trying the clean production concept of "energy saving and emission reduction" and implementing the transformation from pollution control to resource reuse will bring new opportunities for pharmaceutical companies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52C02F1/66C02F1/72C02F1/461
Inventor 邹庆军王同成朱成辉
Owner WUXI TONGYUAN ENVIRONMENTAL PROTECTION TECHNG
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