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.
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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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