%0 Journal Article
%@ 19443994
%A Affam, A.C.
%A Chaudhuri, M.
%A Kutty, S.R.M.
%A Muda, K.
%D 2016
%F scholars:7135
%I Taylor and Francis Inc.
%J Desalination and Water Treatment
%N 11
%P 5146-5154
%R 10.1080/19443994.2014.1001441
%T Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process
%U https://khub.utp.edu.my/scholars/7135/
%V 57
%X This study examined the degradation of pesticide aqueous solution containing chlorpyrifos, cypermethrin and chlorothalonil by the FeGAC/H2O2 process. Under the operating conditions (FeGAC 5 g/L, H2O2 concentration 100 mg/L and pH 3), chemical oxygen demand (COD) and total organic carbon removal were 96.2 and 79.2, respectively, and biodegradability (BOD5/COD ratio) increased from 0 to 0.40 after 60 min reaction. Complete degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides active ingredients occurred in 1 min. Kinetic models such as pseudo-first-order, pseudo-second-order and intraparticle diffusion were evaluated. The Fourier transform infrared spectra (treated and untreated pesticide aqueous solutions) also indicated modification and/or degradation of the pesticide organic bonds. The study showed that FeGAC/H2O2 process can be used for the pretreatment of pesticide aqueous solution containing chlorpyrifos, cypermethrin and chlorothalonil before further treatment by biological process. © 2015 Balaban Desalination Publications. All rights reserved.
%Z cited By 12