@article{scholars5287,
           pages = {195--201},
          volume = {93},
           title = {UV Fenton and sequencing batch reactor treatment of chlorpyrifos, cypermethrin and chlorothalonil pesticide wastewater},
             doi = {10.1016/j.ibiod.2014.06.002},
       publisher = {Elsevier Ltd},
         journal = {International Biodeterioration and Biodegradation},
            year = {2014},
            note = {cited By 43},
        abstract = {This study examined the effect of operating conditions of UV Fenton pretreatment combined with aerobic sequencing batch reactor on degradation and biodegradability (BOD5/COD ratio) improvement of chlorpyrifos, cypermethrin and chlorothalonil pesticide wastewater. The optimum operating conditions in the pretreatment phase were H2O2/COD molar ratio 2.0, H2O2/Fe2+ molar ratio 25, pH 3 and reaction time 60min and achieved COD and TOC removal were 64.8 and 45.9 for COD and TOC removal, respectively and biodegradabilty (BOD5/COD ratio) improved from 0.02 to 0.31. In the aerobic SBR phase, five different UV Fenton operating conditions were investigated and UV F-SBR 1 appeared to be the most significant (p\<0.05). Increasing UV Fenton pretreatment time and combining the pretreated pesticide wastewater and municipal treatment plant wastewater enabled sustenance of the SBR operation. The UV Fenton-SBR (C) achieved COD and TOC removal efficiency of 96.2 and 97.4, respectively after 40d operation at 12hr HRT. Effluent COD, TOC and BOD5 were 24, 19 and 18mgL-1, respectively and BOD5/COD ratio was 0.75. Applying the Monod model, values of the biological first order kinetic constant (Kob), cell yield (Yx/s) and decay coefficients (kd) were 0.1332hr-1, 0.5301 (mg COD mg-1 MLSS) and 0.0072hr-1, respectively. The UV Fenton-SBR (C) process is effective in treatment of pesticide wastewater containing chlorpyrifos, cypermethrin and chlorothalonil to meet Malaysian industrial effluent discharge standard. {\^A}{\copyright} 2014 Elsevier Ltd.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903441648&doi=10.1016\%2fj.ibiod.2014.06.002&partnerID=40&md5=b3af74849dfb3e6f7fa42df068fa5d30},
            issn = {09648305},
          author = {Affam, A. C. and Chaudhuri, M. and Kutty, S. R. M. and Muda, K.},
        keywords = {Biodegradation; Effluent treatment; Pesticides; Sewage; Wastewater, Chlorothalonil; Chlorpyrifos; Cypermethrins; Fenton-SBR; First order kinetics; Industrial effluent discharges; Optimum operating conditions; Sequencing batch reactors, Effluents, biodegradation; bioreactor; chlorpyrifos; cypermethrin; effluent; ultraviolet radiation; waste treatment; wastewater}
}