Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process
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...
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| Format: | Article |
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Taylor and Francis Inc.
2016
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| author | Affam, A. C. Chaudhuri, M. Kutty, S. R. M. Muda, K. |
| author_facet | Affam, A. C. Chaudhuri, M. Kutty, S. R. M. Muda, K. |
| author_sort | Affam, A. C. |
| collection | ePrints |
| description | 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. |
| first_indexed | 2024-03-05T20:06:50Z |
| format | Article |
| id | utm.eprints-73735 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:06:50Z |
| publishDate | 2016 |
| publisher | Taylor and Francis Inc. |
| record_format | dspace |
| spelling | utm.eprints-737352017-11-18T03:30:37Z http://eprints.utm.my/73735/ Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process Affam, A. C. Chaudhuri, M. Kutty, S. R. M. Muda, K. TA Engineering (General). Civil engineering (General) 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. Taylor and Francis Inc. 2016 Article PeerReviewed Affam, A. C. and Chaudhuri, M. and Kutty, S. R. M. and Muda, K. (2016) Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process. Desalination and Water Treatment, 57 (11). pp. 5146-5154. ISSN 1944-3994 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955204191&doi=10.1080%2f19443994.2014.1001441&partnerID=40&md5=8fe5dca46c868d51d49944cd766b6cf3 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Affam, A. C. Chaudhuri, M. Kutty, S. R. M. Muda, K. Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process |
| title | Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process |
| title_full | Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process |
| title_fullStr | Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process |
| title_full_unstemmed | Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process |
| title_short | Degradation of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by FeGAC/H2O2 process |
| title_sort | degradation of chlorpyrifos cypermethrin and chlorothalonil pesticides in aqueous solution by fegac h2o2 process |
| topic | TA Engineering (General). Civil engineering (General) |
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