UV and zero valent iron treatment of endosulfan
UV and ZVI treatment of stockpile endosulfan in water at lab scale was investigated. Results show the mechanism for UV treatment is free radical reaction. A decrease in concentration of 86% was obtained for both isomers but produced endosulfan ether. No significant change in the pH and chloride were...
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| Main Authors: | , , , , |
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| Format: | text |
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Animo Repository
2008
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| Subjects: | |
| Online Access: | https://animorepository.dlsu.edu.ph/faculty_research/13672 |
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| Institution: | De La Salle University |
| Summary: | UV and ZVI treatment of stockpile endosulfan in water at lab scale was investigated. Results show the mechanism for UV treatment is free radical reaction. A decrease in concentration of 86% was obtained for both isomers but produced endosulfan ether. No significant change in the pH and chloride were observed. For ZVI treatment, the mechanism is by reductive dechlorination. A decrease in concentration of 64.73% for a-endosulfan and 81.86% for B endosulfan was obtained, a change in pH from 2 to 5. and chloride increase by 1.75 ppm was seen with no other forms of endosulfan found. For combined UV- ZVI treatment, both isomers decreased in concentration by 86%, an increase in pH. from 2 to 6, and dechlorination of 1.75 ppm resulted in the treated solutions. Toxicity analysis for UV treatment showed the solutions as toxic but non-toxic for ZVI and combined UV-ZVI treated solutions. Further tests still needs to be conducted to confirm toxicity and chloride results. |
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