Pretreatment of Wastewater Using a Combined Coagulation and Fenton Oxidation Process

Wen Sheng Linghu; Chun Yan Sun

doi:10.4028/www.scientific.net/AMR.1049-1050.154

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1049-1050Pretreatment of Wastewater Using a Combined...

Pretreatment of Wastewater Using a Combined Coagulation and Fenton Oxidation Process

Abstract:

The effectiveness of combined coagulation and Fenton oxidation to pharmaceutical plant wastewater was investigated under different operational conditions such as pH, dosage, coagulants and ratio of Fe²⁺ to H₂O₂. Among the nonionic polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, polyaluminum chloride and polymeric ferric sulfate, anionic polyacrylamide showed the best efficiency of coagulation for the pharmaceutical plant wastewater. The results also showed that after the combined coagulation and Fenton oxidation treatment, the COD and color were reduced by 69.9% and 78.9%, respectively. The BOD₅/ COD ratio increased from 0.09 in initial to 0.22 after treatment. The wastewater of outlet was easier for the sequent biological process.

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Periodical:

Advanced Materials Research (Volumes 1049-1050)

Pages:

154-157

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1049-1050.154

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Online since:

October 2014

Authors:

Wen Sheng Linghu*, Chun Yan Sun

Keywords:

Coagulation, Fenton Oxidation, Pharmaceutical Wastewater

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