Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology
Although bentazon is widely used as an agricultural herbicide, it is harmful to humans and poses many environmental threats. This study focused on the treatment of wastewater contaminated with bentazon pesticides using membrane technology. In this regard, low-pressure reverse osmosis (RO) was employ...
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| Format: | Article |
| Language: | English |
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Iranian Research Organization for Science and Technology (IROST)
2019-10-01
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| Series: | Advances in Environmental Technology |
| Subjects: | |
| Online Access: | http://aet.irost.ir/article_941_9355d6b1b9ecee85d1796d1e087b8ce1.pdf |
| _version_ | 1818389450397319168 |
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| author | Mohammad Nematzadeh Abdolreza Samimi Soheila Shokrollahzadeh Davod Mohebbi-Kalhori |
| author_facet | Mohammad Nematzadeh Abdolreza Samimi Soheila Shokrollahzadeh Davod Mohebbi-Kalhori |
| author_sort | Mohammad Nematzadeh |
| collection | DOAJ |
| description | Although bentazon is widely used as an agricultural herbicide, it is harmful to humans and poses many environmental threats. This study focused on the treatment of wastewater contaminated with bentazon pesticides using membrane technology. In this regard, low-pressure reverse osmosis (RO) was employed as it has already been used in the removal of other micro-pollutants. The effects of process variables on water flux and bentazon rejection were studied: temperature, pressure, and bentazon feed concentration. Based on central composite design (CCD), the quadratic model was engaged to correlate the process variables with the water flux and the bentazon removal responses. The obtained results showed that the bentazon rejection increased by enhancing the pressure while it decreased at higher feed solution concentration. However, with increasing temperature, the amount of bentazon removal was reduced. A bentazon rejection efficiency of 100 % could be achieved under optimum conditions (i.e., the temperature of 29.8 ℃ and hydrostatic pressure of 12.6 bar for a feed solution concentration of 66.9 mg/L). Therefore, reverse osmosis can effectively remove bentazon. |
| first_indexed | 2024-12-14T04:41:56Z |
| format | Article |
| id | doaj.art-9302c79c37e94f278989bb8f8b9f8bf1 |
| institution | Directory Open Access Journal |
| issn | 2476-6674 2476-4779 |
| language | English |
| last_indexed | 2024-12-14T04:41:56Z |
| publishDate | 2019-10-01 |
| publisher | Iranian Research Organization for Science and Technology (IROST) |
| record_format | Article |
| series | Advances in Environmental Technology |
| spelling | doaj.art-9302c79c37e94f278989bb8f8b9f8bf12022-12-21T23:16:46ZengIranian Research Organization for Science and Technology (IROST)Advances in Environmental Technology2476-66742476-47792019-10-015419320110.22104/aet.2020.4228.1209941Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodologyMohammad Nematzadeh0Abdolreza Samimi1Soheila Shokrollahzadeh2Davod Mohebbi-Kalhori3Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, IranDepartment of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, IranDepartment of Chemical Technologies, Iranian Research Organization for Science and TechnologyDepartment of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, IranAlthough bentazon is widely used as an agricultural herbicide, it is harmful to humans and poses many environmental threats. This study focused on the treatment of wastewater contaminated with bentazon pesticides using membrane technology. In this regard, low-pressure reverse osmosis (RO) was employed as it has already been used in the removal of other micro-pollutants. The effects of process variables on water flux and bentazon rejection were studied: temperature, pressure, and bentazon feed concentration. Based on central composite design (CCD), the quadratic model was engaged to correlate the process variables with the water flux and the bentazon removal responses. The obtained results showed that the bentazon rejection increased by enhancing the pressure while it decreased at higher feed solution concentration. However, with increasing temperature, the amount of bentazon removal was reduced. A bentazon rejection efficiency of 100 % could be achieved under optimum conditions (i.e., the temperature of 29.8 ℃ and hydrostatic pressure of 12.6 bar for a feed solution concentration of 66.9 mg/L). Therefore, reverse osmosis can effectively remove bentazon.http://aet.irost.ir/article_941_9355d6b1b9ecee85d1796d1e087b8ce1.pdfmembrane technologyoptimizationwastewater treatmentreusebentazon |
| spellingShingle | Mohammad Nematzadeh Abdolreza Samimi Soheila Shokrollahzadeh Davod Mohebbi-Kalhori Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology Advances in Environmental Technology membrane technology optimization wastewater treatment reuse bentazon |
| title | Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology |
| title_full | Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology |
| title_fullStr | Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology |
| title_full_unstemmed | Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology |
| title_short | Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology |
| title_sort | bentazon removal from aqueous solution by reverse osmosis optimization of effective parameters using response surface methodology |
| topic | membrane technology optimization wastewater treatment reuse bentazon |
| url | http://aet.irost.ir/article_941_9355d6b1b9ecee85d1796d1e087b8ce1.pdf |
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