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Anaerobic and Aerobic Combined Process to Treat the Mixture of VB_(12) and Starch Production Wastewater

Cui Liu

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Abstract

The treatment of wastewater mixture from the production processes of Vitamin B 12 and starch by using anaerobic and contacting oxidation processes was described in this paper. The results showed that, when influent COD was 13?131mg·L -1 ,a COD removal of 95.9% and a volumetric COD loading of 13.27 kg·m -3 d -1 were reached in UASB reactor at 35℃±1℃. The anaerobic effluent was treated by contacting oxidation reactor,it had a effluent COD concentration of less than 300?mg·L -1 ,and a COD removal rate of 49.9%. The total system had a COD removal rate of 97.7%.

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What this paper is about

The treatment of wastewater mixture from the production processes of Vitamin B 12 and starch by using anaerobic and contacting oxidation processes was described in this paper. The results showed that, when influent COD was 13?131mg·L -1 ,a COD removal of 95.9% and a volumetric COD loading of 13.27 kg·m -3 d -1 were reached in UASB reactor at 35℃±1℃. The anaerobic effluent was treated by contacting oxidation reactor,it had a effluent COD concentration of less than 300?mg·L -1 ,and a COD removal rate of 49.9%. The total system had a COD removal rate of 97.7%.

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Available abstract

The treatment of wastewater mixture from the production processes of Vitamin B 12 and starch by using anaerobic and contacting oxidation processes was described in this paper. The results showed that, when influent COD was 13?131mg·L -1 ,a COD removal of 95.9% and a volumetric COD loading of 13.27 kg·m -3 d -1 were reached in UASB reactor at 35℃±1℃. The anaerobic effluent was treated by contacting oxidation reactor,it had a effluent COD concentration of less than 300?mg·L -1 ,and a COD removal rate of 49.9%. The total system had a COD removal rate of 97.7%.

Key concepts: Effluent, Wastewater, Anaerobic exercise, Pulp and paper industry, Chemistry, Starch, Anaerobic respiration, Food science

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