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Pretreatment method of high-concentration synthesis pharmaceutical wastewater

A pharmaceutical wastewater, high-concentration technology, applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., to prevent the loss of bacteria, enhance sedimentation, and shorten the domestication period.

Active Publication Date: 2013-05-08
SHANDONG NEWTIME PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wastewater treated by the above-mentioned prior art is organic wastewater with good biodegradability, or artificially prepared low-concentration simulated wastewater
There is no report on the application of immobilized photosynthetic bacteria in the treatment of high-concentration synthetic pharmaceutical wastewater in the domestic prior art

Method used

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  • Pretreatment method of high-concentration synthesis pharmaceutical wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The high-concentration synthetic pharmaceutical wastewater from Shandong New Times Pharmaceutical Co., Ltd. was used for a small test. The water quality is as follows: COD concentration is about 14000-16000mg / L, chroma is about 1000-1250 times, salt content is 18000-20000mg / L, SO 4 2- The concentration is 4000~5000mg / L, the B / C is 0.30, and the pH value is 4.0. Add 500ml of photosynthetic bacteria suspension into the mixing box, weigh 6g of powdered activated carbon, 3g of slag, and 1g of zeolite powder and mix them evenly before adding them to the mixing box. After stirring evenly, soak for 24 hours to complete the immobilization process. Feed 400mL of immobilized photosynthetic bacteria into an IPSB reactor with an effective volume of 2L, dilute the high-concentration synthetic pharmaceutical wastewater to a COD concentration of 7000mg / L, adjust the pH value of the wastewater to 9.0 with solid sodium hydroxide, and take 1.6L Add the IPSB reactor, turn on the micro-o...

Embodiment 2

[0034] The high-concentration synthetic pharmaceutical wastewater from Shandong New Times Pharmaceutical Co., Ltd. was used for pilot test. The water quality is as follows: COD concentration is 15000-16000mg / L, chromaticity is about 1000-1250 times, salt content is 18000-20000mg / L, SO 4 2- The concentration is 4500~5000mg / L, the B / C is 0.28, and the pH value is 4.0. Add 22L of photosynthetic bacteria suspension into the mixing box, weigh 300g of powdered activated carbon, 100g of slag, and 50g of zeolite powder, mix them evenly, and add them to the mixing box. After stirring evenly, soak for 30 hours to complete the immobilization process. Feed 20L of immobilized photosynthetic bacteria into an IPSB reactor with an effective volume of 100L, dilute the high-concentration synthetic pharmaceutical wastewater to a COD concentration of 8000mg / L, adjust the pH value of the wastewater to 9.0 with solid sodium hydroxide, and then take 80L to add In the IPSB reactor, turn on the micr...

Embodiment 3

[0038] The high-concentration synthetic pharmaceutical wastewater from Shandong New Times Pharmaceutical Co., Ltd. was used for pilot test. The water quality is as follows: COD concentration is about 15000-16000mg / L, chroma is about 1000-1250 times, salt content is 18000-20000mg / L, SO 4 2- The concentration is 4000-4500mg / L, the B / C is 0.30, and the pH value is 4.5. Add 31L of photosynthetic bacteria suspension into the mixing box, weigh 350g of powdered activated carbon, 100g of slag, and 100g of zeolite powder, mix them evenly, and add them to the mixing box. After stirring evenly, soak for 40 to complete the immobilization process. Take 30L of immobilized photosynthetic bacteria and add them to the IPSB reactor with an effective volume of 100L. Dilute the high-concentration synthetic pharmaceutical wastewater to a COD concentration of 8000mg / L, adjust the pH value of the wastewater to 7.0 with a mixture of solid sodium hydroxide and calcium hydroxide, take 70L and add it ...

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Abstract

The invention discloses a pretreatment method of high-concentration synthesis pharmaceutical wastewater, which belongs to the field of wastewater treatment. The pretreatment method comprises the following steps of: carrying out immobilization on photosynthetic bacteria and feeding the immobilized photosynthetic bacteria into an IPSB (Immobilized Photosynthetic Bacteria) reactor; domesticating the immobilized photosynthetic bacteria by using low-concentration synthesis pharmaceutical wastewater; regulating the pH value of the high-concentration wastewater to be treated and adding into the IPSB reactor to conduct micro-aerobic biological reaction; after the reaction, depositing and discharging the water; and further treating the supernate. The method is applicable to pretreatment of high-concentration synthesis pharmaceutical wastewater, the water intake COD (Chemical Oxygen Demand) concentration can be 16,000mg / L, the chromaticity can be 1250 times, the salt content can be 20,000mg / L, the sulfate radical concentration is as high as 5,000mg / L, the water outtake COD concentration is as low as 2,000mg / L, and the chromaticity is reduced to 100 times.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a pretreatment method for high-concentration synthetic pharmaceutical wastewater. Background technique [0002] High-concentration synthetic pharmaceutical wastewater is produced in the production process of using organic and inorganic raw materials for chemical reactions and preparing pharmaceuticals or intermediates. It has the characteristics of high concentration of organic matter, high salinity, complex components, etc., and often contains biologically toxic substances and biodegradable Substances with poor biodegradability are a type of industrial wastewater that is difficult to treat. [0003] At present, the commonly used treatment methods for synthetic pharmaceutical wastewater mainly include physical and chemical methods such as coagulation, air flotation, incineration, extraction, adsorption, advanced oxidation, and evaporation, and anaerobic and aerobic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/34
Inventor 苏建文王俊超许尚营王彩冬
Owner SHANDONG NEWTIME PHARMA
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