The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation

BACKGROUND AND OBJECTIVE: Organophosphorus pesticides are one of the most consumable poisons in the country. Such poisons can enter water sources by different routes since consuming some drinking water which contains an amount of poison higher than the standard level, causes undesirable effects to...

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Autor principal:	Dehghani MH, Godini K, Nasseri S, Shayeghi M, Alimohamadi M
Formato:	article
Lenguaje:	EN FA
Publicado:	Babol University of Medical Sciences 2011
Materias:	water ultraviolet irradiation malathion Medicine R Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/0fceac0055d94763a7231d5bb0a3020d
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spelling	oai:doaj.org-article:0fceac0055d94763a7231d5bb0a3020d2021-11-10T08:57:07ZThe Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation1561-41072251-7170https://doaj.org/article/0fceac0055d94763a7231d5bb0a3020d2011-12-01T00:00:00Zhttp://jbums.org/article-1-4024-en.htmlhttps://doaj.org/toc/1561-4107https://doaj.org/toc/2251-7170BACKGROUND AND OBJECTIVE: Organophosphorus pesticides are one of the most consumable poisons in the country. Such poisons can enter water sources by different routes since consuming some drinking water which contains an amount of poison higher than the standard level, causes undesirable effects to human health and hygiene. The purpose of the present work is to study the effectiveness of eliminating malathion from water by ultraviolet irradiation (UV) mercury lamp with a medium pressure.METHODS: In this experimental study, concentrations of 0.5, 1, and 2 mg/L and pH values of 6, 7, and 9 from malathion poison were irradiated at the times of 10, 20, 30, 40, 50, and 60 minutes in a ultraviolet reactor. The amounts of malathion poison were determined by HPLC instrument and then compared before and after the irradiation. FINDINGS: The results of the present study at different concentrations, times and pH show that the minimum reduction of malathion occurs at the time period of 10 min ( %46) and the maximum reduction at the time period of 60 min (%87.25) (p<0.05). Also, the effectiveness of irradiation process decreases (from 93 to 87.25%) with increasing the poison concentration (from 0.5 to 2mg/L) (p<0.001). On the other hand, the efficiency of the process increases with pH increase.CONCLUSION: The present study shows that applying UV irradiation for 60 min. with the concentration of 0.5 mg/l and pH=9, has the most effectiveness on reducing malathion poison content of water. Therefore, the application of UV reactors could be considered as an appropriate method for the treatment of waters contaminated with these poisons.Dehghani MH, Godini K, Nasseri S, Shayeghi M, Alimohamadi MBabol University of Medical Sciencesarticlewaterultraviolet irradiationmalathionMedicineRMedicine (General)R5-920ENFAMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, Vol 14, Iss 1, Pp 7-13 (2011)
institution	DOAJ
collection	DOAJ
language	EN FA
topic	water ultraviolet irradiation malathion Medicine R Medicine (General) R5-920
spellingShingle	water ultraviolet irradiation malathion Medicine R Medicine (General) R5-920 Dehghani MH, Godini K, Nasseri S, Shayeghi M, Alimohamadi M The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation
description	BACKGROUND AND OBJECTIVE: Organophosphorus pesticides are one of the most consumable poisons in the country. Such poisons can enter water sources by different routes since consuming some drinking water which contains an amount of poison higher than the standard level, causes undesirable effects to human health and hygiene. The purpose of the present work is to study the effectiveness of eliminating malathion from water by ultraviolet irradiation (UV) mercury lamp with a medium pressure.METHODS: In this experimental study, concentrations of 0.5, 1, and 2 mg/L and pH values of 6, 7, and 9 from malathion poison were irradiated at the times of 10, 20, 30, 40, 50, and 60 minutes in a ultraviolet reactor. The amounts of malathion poison were determined by HPLC instrument and then compared before and after the irradiation. FINDINGS: The results of the present study at different concentrations, times and pH show that the minimum reduction of malathion occurs at the time period of 10 min ( %46) and the maximum reduction at the time period of 60 min (%87.25) (p<0.05). Also, the effectiveness of irradiation process decreases (from 93 to 87.25%) with increasing the poison concentration (from 0.5 to 2mg/L) (p<0.001). On the other hand, the efficiency of the process increases with pH increase.CONCLUSION: The present study shows that applying UV irradiation for 60 min. with the concentration of 0.5 mg/l and pH=9, has the most effectiveness on reducing malathion poison content of water. Therefore, the application of UV reactors could be considered as an appropriate method for the treatment of waters contaminated with these poisons.
format	article
author	Dehghani MH, Godini K, Nasseri S, Shayeghi M, Alimohamadi M
author_facet	Dehghani MH, Godini K, Nasseri S, Shayeghi M, Alimohamadi M
author_sort	Dehghani MH, Godini K, Nasseri S, Shayeghi M, Alimohamadi M
title	The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation
title_short	The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation
title_full	The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation
title_fullStr	The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation
title_full_unstemmed	The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation
title_sort	effectiveness of eliminating malathion from water by ultraviolet irradiation
publisher	Babol University of Medical Sciences
publishDate	2011
url	https://doaj.org/article/0fceac0055d94763a7231d5bb0a3020d
work_keys_str_mv	AT dehghanimhgodiniknasserisshayeghimalimohamadim theeffectivenessofeliminatingmalathionfromwaterbyultravioletirradiation AT dehghanimhgodiniknasserisshayeghimalimohamadim effectivenessofeliminatingmalathionfromwaterbyultravioletirradiation
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The Effectiveness of Eliminating Malathion from Water by Ultraviolet Irradiation

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