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Reduction of non‐Betalactam Antibiotics COD by Combined Coagulation and Advanced Oxidation Processes
Author(s) -
Yazdanbakhsh Ahmad Reza,
Mohammadi Amir Sheikh,
Alinejad Abdol Azim,
Hassani Ghasem,
Golmohammadi Sohrab,
Mohseni Seyed Mohsen,
Sardar Mahdieh,
Sarsangi Vali
Publication year - 2016
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143016x14733681695447
Subject(s) - coagulation , chemistry , antibiotics , chromatography , medicine , biochemistry , psychiatry
The present study evaluates the reduction of antibiotic COD from wastewater by combined coagulation and advanced oxidation processes (AOP S ). The reduction of Azithromycin COD by combined coagulation and Fenton‐like processes reached a maximum 96.9% at a reaction time of 30 min, dosage of ferric chloride 120 mg/L, dosages of Fe 0 and H 2 O 2 of 0.36mM/L and 0.38 mM/L, respectively. Also, 97.9% of Clarithromycin COD reduction, was achieved at a reaction time of 30 min, dosage of ferric chloride 120 mg/L, dosages of Fe 0 and H 2 O 2 of 0.3 mM/L and 0.3mM/L, respectively. The results of kinetic studies were best fitted to the pseudo first order equation. The results showed a higher rate constant value for combined coagulation and Fenton‐like processes [( k ap = 0.022 min −1 and half‐life time of 31.5 min for Azithromycin) and ( k ap = 0.023 min −1 and half‐life time of 30.1 min for Clarithromycin)].