Traditional Chinese medicine wastewater treatment process

A technology of wastewater treatment and traditional Chinese medicine, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. It can solve the problems of microbial death and unsatisfactory wastewater treatment effect, etc.

Inactive Publication Date: 2013-02-13
四川省环保科技工程有限责任公司 +1
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  • Application Information

AI Technical Summary

Problems solved by technology

When the content of organic matter in wastewater is low, the microorganisms in the contact oxidation aerobic tank and activated sludge aerobic tank in the treatment process are likely to cause a large number of microorganisms to die due t

Method used

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Examples

Experimental program
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Example Embodiment

[0017] Example 1

[0018] The mixed production wastewater from a traditional Chinese medicine pharmaceutical factory in Chengdu, Sichuan Province is used. During the production of traditional Chinese medicine, the mixed production wastewater is mainly composed of traditional Chinese medicine production wastewater, bottle washing, rubber stopper washing wastewater, resin regeneration wastewater, machine repair wastewater, domestic wastewater, and quality inspection wastewater , The residue after ethanol distillation and recovery and other seven types of wastewater. The average value of wastewater CODCr is 18150mg / L, the average value of pH is 4.6, and the average value of ammonia nitrogen is 1100mg / L. Due to the high concentration of production wastewater (CODCr>10000mg / L), the activated sludge aerobic tank and contact oxidation aerobic tank are operated in series After adjusting the pH value to about 8.5 through the pretreatment and two-stage UASB anaerobic treatment, the average...

Example Embodiment

[0019] Example 2

[0020] Using mixed production wastewater from a traditional Chinese medicine pharmaceutical factory in Chengdu, Sichuan. During the shutdown of the Chinese medicine production workshop, the mixed production wastewater mainly consists of bottle washing and rubber stopper washing wastewater, resin regeneration wastewater, machine repair wastewater, domestic wastewater, quality inspection wastewater, and ethanol The residue after distillation and recovery is composed of six types of wastewater. The average wastewater CODCr is 2150mg / L, the average pH is 6.4, and the average ammonia nitrogen is 85mg / L. Due to the low concentration of the production wastewater (CODCr<3000mg / L), the activated sludge aerobic tank and the contact oxidation aerobic tank are connected in parallel In operation, after adjusting the pH value to about 8.0 through the pretreatment and two-stage UASB anaerobic treatment, the average CODCr of the effluent from traditional Chinese medicine waste...

Example Embodiment

[0021] Example 3

[0022] The mixed production wastewater of a traditional Chinese medicine pharmaceutical factory in Sichuan is used. During the production of traditional Chinese medicine, the mixed production wastewater is mainly composed of pharmaceutical raw material washing water, original medicine decoction and extraction process residual liquid, washing tank (bottle) water, ground washing water, Boiler house drainage and domestic sewage in the plant area. The average CODCr of wastewater is 11000mg / L, the average pH is 4.9, and the average ammonia nitrogen is 300mg / L. Due to the high concentration of production wastewater (CODCr>10000mg / L), the activated sludge aerobic tank and the contact oxidation aerobic tank are operated in series, and the pH value is adjusted to about 8.5 through the pretreatment in the early stage and after the two-stage UASB anaerobic treatment, the traditional Chinese medicine The average CODCr of wastewater effluent is 780mg / L. The effluent enters ...

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Abstract

The invention discloses a traditional Chinese medicine wastewater treatment process. The process has the following beneficial effects: by adopting the method of connecting activated sludge aerobic pools and contact oxidation aerobic pools in parallel and in series in the step of biochemical reflux, treatment of wastewater at different CODCr concentrations can be effectively handled and effective treatment of the wastewater can be ensured at high CODCr concentration; the stability of a wastewater treatment system can be ensured when the wastewater is at low CODCr concentration; the adaptive capacity of the wastewater treatment system is comprehensively improved; and good economic and environmental benefits are obtained.

Description

technical field [0001] The invention relates to a wastewater treatment process, in particular to a traditional Chinese medicine wastewater treatment process. Background technique [0002] Traditional Chinese medicine wastewater mainly comes from the production workshop, which is produced in the process of washing and cooking medicinal materials, washing, and preparation. Traditional Chinese medicine wastewater includes raw drug washing water in the production process, raw drug juice residue, sewage generated in unit operations such as filtration, distillation, and extraction, production equipment washing, floor flushing water, steam condensate water, and ion exchange resin acid-base treatment Neutralizing water for solutions, etc. [0003] Pollutants in traditional Chinese medicine wastewater can be roughly divided into two categories: one is water-soluble, and the other is insoluble. The main components of water-soluble pollutants are sugars (mainly polysaccharides), prot...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 王维朱义杨博赵希锦刘淘田庆华陈亚平
Owner 四川省环保科技工程有限责任公司
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