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High salinity pharmaceutical wastewater processing system

A pharmaceutical wastewater and treatment system technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem that the total amount of pollutants is difficult to reach the standard, the system is huge, and the operating cost is high, etc. problems, to achieve the effect of reducing the total amount of pollutants discharged, high treatment efficiency, and low operating costs

Active Publication Date: 2012-02-29
上海明诺环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the following problems exist in the treatment of high-salt pharmaceutical wastewater: (1) High-salt pharmaceutical wastewater requires a large amount of fresh water or low-concentration wastewater to be diluted, resulting in a large system, high investment and operation costs, and difficulty in reaching the standard for total pollutants; ( 2) High-salt wastewater often has poor biochemical properties, and pretreatment is required to effectively improve biodegradability and reduce the load of subsequent wastewater; (3) High-salt pharmaceutical wastewater often has complex components and is greatly affected by product switching, and the treatment process needs to withstand load Shock; (4) When the salt content exceeds 1%, the biochemical system represented by conventional activated sludge basically collapses
Conventional technology has been difficult to ensure the discharge of high-salt pharmaceutical wastewater up to standard
The use of evaporation and incineration technology is not only difficult to accept the economic cost, but also difficult to easily solve the secondary pollution; in addition to poor operational stability and high operating costs, the membrane separation technology still has disadvantages such as difficult treatment of concentrated water

Method used

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  • High salinity pharmaceutical wastewater processing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] High-salt pharmaceutical wastewater is fully homogenized and equalized in the aeration regulating tank 1, and the residence time is more than 3 days to ensure that the wastewater quality is stable and enters the follow-up system. In the regulating tank, the pH of the wastewater is adjusted to between 1 and 3. The pump 2 and the valve C control the flow into the catalytic micro-electrolysis reaction device 3, the catalytic micro-electrolysis reaction device 3 enters water from the bottom, and the upper part of the water exits. The device is equipped with a three-dimensional spatial structure of catalytic micro-electrolysis packing 4 to keep the filling rate of more than 30%. , under normal circumstances, the position is 1t filler / m3 space, and the total hydraulic retention time is 8-16h. The outlet water from the catalytic micro-electrolysis reaction device 3 is controlled by the valve C to enter the hydrogen peroxide catalytic oxidation tank 5, and the new ecological fer...

Embodiment 2

[0041] A pharmaceutical company mainly produces fermented products, including: maduramycin, ivermectin, dicrasul, and salinomycin veterinary drugs. The daily discharge of concentrated wastewater from the comprehensive process is about 650t. Using the present invention to treat high-salt pharmaceutical wastewater The system performs processing, and the processing process refers to embodiment 1.

[0042] Table 1 The water quality concentration and removal rate of each section of a comprehensive pharmaceutical wastewater

[0043]

[0044]

[0045] After the raw water is fully homogenized in the adjustment tank, the pH value is adjusted to between 2 and 3, and it enters the iron-carbon micro-electrolysis tank, and the refractory organic matter in the wastewater is effectively decomposed by the reduction effect formed by the iron-carbon primary battery, and the residence time is 8h. , the effluent enters the hydrogen peroxide oxidation tank, and the dosage of hydrogen peroxid...

Embodiment 3

[0047] A pharmaceutical factory in Huzhou produces high viscosity hydroxypropyl methylcellulose (HPMC), hydroxyethyl hydroxypropyl methylcellulose (HEHPMC), and highly substituted hydroxypropyl cellulose (H-HPC), hydroxyethyl cellulose (HEC), ethyl cellulose (EC), polymethyl methacrylate (PMMA), etc., after expanding the production, the concentrated wastewater production capacity is 2000t / day, and the treatment system of the high-salt pharmaceutical wastewater of the present invention is used to process and treat Process with reference to embodiment 1.

[0048] Table 2 The water quality concentration and effluent water quality of a comprehensive pharmaceutical wastewater

[0049]

[0050] Conventional carboxymethyl cellulose ether pharmaceutical filler wastewater is often treated by dozens of times of dilution, often requiring a dilution water ratio of 1:5 to 1:10. At the moment when water resources are becoming increasingly tense, dilution treatment can no longer meet the...

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Abstract

The invention discloses a high salinity pharmaceutical wastewater processing system, wherein the salinity tolerance range of the system of the invention is that the total salinity is less than 5%, and is generally less than 3%. The system which adopts a processing technology with "a catalytic micro-electrolysis device, a hydrogen peroxide catalytic oxidation tank, a photosynthetic bacterium anaerobic system, a photosynthetic bacterium aerobic system and a coagulation decoloring tank" allows COD, BOD, ammonia nitrogen, and the chroma to be furthest reduced, the processing effect to be uninfluenced by the salinity, and outlet water to reach discharge standards. The system which allows various high salinity pharmaceutical wastewaters to be effectively processed, abuses of dilution or evaporation (burning) processing technologies for the routine processing to be avoided and the total pollutant discharge amount to be reduced and has the advantages of strong operation stability, low investment cost, high processing efficiency and low operation cost is a high salinity pharmaceutical wastewater processing system with development potential.

Description

technical field [0001] The invention relates to a treatment method for high-salt pharmaceutical wastewater. The high-salt pharmaceutical wastewater mainly includes two categories: biopharmaceuticals and chemical synthesis pharmaceuticals, and the total salt content is controlled below 3%, generally not more than 5%. Background technique [0002] The pharmaceutical industry is a key industry related to the national economy and the people's livelihood, and involves every bit of life of the people. The pharmaceutical industry is divided into three types: Chinese patent medicine, biological fermentation and chemical synthesis medicine. From the perspective of wastewater treatment, biological fermentation wastewater is difficult to biochemically treat due to its complex composition and presence of biological inhibitory substances, while Chinese patent medicine wastewater and chemical synthesis wastewater generally have better biochemical properties. The treatment of high-salt wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 王海峰刘彦林邵华俊王龙郑勇
Owner 上海明诺环境科技有限公司
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