Using Ultraviolet Irradiation for Removal of Malathion Pesticide in Water
,
Abstract
Background: Organophosphorus pesticides are one of the most consumable poisons. Such poisons can enter water sources by different routes. Since consuming some drinking water containing an amount of poison higher than the standard level, causes undesirable effects on human health. This research aimed to study the effectiveness of eliminating malathion from water by ultraviolet irradiation (UV) mercury lamp with a medium pressure.
Methods: In this experimental- applied study, variants of initial pHs and initial concentrations and exposure times were investigated. Initial concentrations of malathion were 0.5, 1 and 2 mg/l. The samples were then exposed to UV irradiation interruptedly the time periods of 10, 20, 30, 40, 50 and 60 minutes. The UV lamp used in the reactor was medium pressure (irradiation intensity= 200 W/m2). The amounts of malathion were determined before and after the irradiation by HPLC instrument. Moreover, the results obtained from the study were analyzed using SPSS software and ANOVA and t-test statistical trials.
Results: The minimum reduction occurs at 10 min (%46) and the maximum reduction in 60 min (% 87.25) (P< 0.05). In addition, the effectiveness of irradiation process decreases with increasing the poison concentration (P< 0.001). However, the efficiency of the process increases with pH increase.
Conclusion: The results show the most effectiveness were achieved at 60 min and 0.5 mg/l and pH= 9. Therefore, the application of UV reactors could be considered as an appropriate method.
Alavanja MC, Hoppin JA, Kamel F (2004) Health effects of chronic pesticide ex- posure: Cancer and nevrotoxicity. Annu Rev Public Health. 25: 155–197.
Agarawal HC (1991) Pesticide pollution of water. Mc Graw Hill, Publishing Com- pany limited.
APHA (2005) Standard methods for the ex- amination of water and wastewater. American Public Health Association, Washington, DC.
Borner H (1994) Pesticides in ground and surface water. Springer Verlag, Berlin Germany.
Burrows HD, Canle LM, Santaballa JA (2002) Reaction pathways and mecha- nisms of photodegradation of pesti- cides. J Photochem Photobiol B. 67:71–108.
Badawy MI, Montaser Y, Ghaly MY (2006) Advanced oxidation processes for the removal of organophosphorus pesti- cides from wastewater. J Desalination.194: 166–175.
BavconKralj M, Franko M, Trebše P (2007) Photodegradation of organophosphorus insecticides: Investigations of products and their toxicity using gas chromatog- raphy–mass spectrometry and AChE- thermal lens spectrometric bioassay. J Chemosphere. 67(1): 99–107.
Freed VH, Chiou CT (1979) Degradation of selected organophosphate pesticides in water and soil. J Agric Food Chem.27: 706–708.
Fireston JA, Smith-Weller T, Franklin G, Swanson P, Longstreth WT Jr, Checkoway H (2005) Pesticides and risk of parkinson disease: A population based case control study. Arch Neurol.62: 91–95.
Héquet V, Gonzalez C, Le-Cloirec P (2001) Photochemical processes for atrazine degradation: Methodological approach. J Water Research. 35: 4253–4260.
Hejazinejad FS, Hormozi B, Abtahi FS (2004) A critique of pesticides use in the province of Golestan. J Water Environment. 66: 37–44.
Honarpajoh K (2003) Survey and determi- nation of organophosphors insecticides of Malathion and Diazinon in water of Karaj Amir Kabir Dam. [MSc Thesis]. School of Public Health, Tehran Uni- versity of Medical Sciences, Iran.
Huston PL, Pignatello JJ (1999) Degrada- tion of selected pesticide active ingre- dients and commercial formulations in water by the photo-assisted fenton re- action. J Water Research. 33: 1238–1246.
Khodadadi M (2008) Determination of pes- ticides residue concentration in Hama- dan drinking water resources and com- parison of removal efficiencies of it by application of PAC and Advance ox- idation by O3/UV. Hamadan. [MSPH Thesis]. Hamadan University Medical Sciences, Iran.
Li-An L, Ying-Shih M, Mathava K, Jih-Gaw L (2011) Photochemical degradation of carbofuran and elucidation of re- moval mechanism. J Chemical Engi- neering. 166: 150–156.
Maldonado MI, Malato S, Pereze- Estrada LA, Gernjak W, Oller I, Doménech X, Peral J (2006) Partial degradation of five pesticides and an industrial pollu- tant by ozonation in a pilot-plant scale reactor. J Hazardous Materials. 138:363–369.
Rauh A, Garfinkel R, Perera P (2006) Im- pact of prenatal chlopyrifos exposure on Neurodevelopment in the First 3 years of life Among Inner- city chil- dren. J Pediatrics. 118(6): 1845–1859.
Shayeghi M, Shahtaheri J, Selseleh M (2001) Organophosphorus insecticides residue in Mazandaran river and wa- ters (Iran). Iranian J Public Health.30(3–4): 115–119.
Shayeghi M, Darabi H (2004) Survey of Diazinon and Malathion in water of Shahpour, Mand, Dalaki, Boushehr Riverse. J South Medicine. 10(1): 54–60.
Shayeghi M, Khobdel M, Vatandoost H (2007) Determination of organophos- phorus insecticides (Malathion and Diazinon) residue in the drinking water. Pak J Biol Sci. 10(17): 2900–4.
Shayeghi M, Dehghani MH, Mahvi AH, Azam K (2010) Application of Acous- tical Processor Reactors for Degrada- tion of Diazinon from Surface Water. Iran J Arthropod-Borne Dis. 4(2): 11–18.
Shayeghi M, Dehghani MH, Fadaei AM (2011) Removal of malathion insecti- cide from water by employing acousti- cal wave technology. Iranian J Public Health (in press).
Safi JM (2002) Association between chronic exposure to pesticides and recorded cases of human malignancy in Gza Goveronates. J Sci Total Environm.284: 75–84.
Samanidou V, Fytianos K (1988) Photo- chemical decomposition of carbamate pesticides in natural waters on north- ern Greece. Sci Total Environ. 76(15):85–92.
Tarahi S (2002) Survey and determination of used pesticides residue concentration (malathion, diazinon and metasystox) in the water of Nahand river. [MSc The- sis]. Tehran University of Medical Sci- ences, Iran.
Vaezi F, Bazrafshan E (2008) Ultraviolet irradiation and its application in water and wastewater disinfection and treat- ment. Andishmand Publisher, Tehran.
Videria RA, Antunes-Madiera MC, Lopes VI, Madeira Vı́tor MC (2001) Change induced by malathion, methylparation and parathion on membrane lipid phys- iochemical properties correlate with their toxicity. J Biochem Biophys Acta (BBA)-Biomembranes. 1511: 360–368.
Walid K, Lafi Z, Al-Qodah (2006) Com- bined advanced oxidation and biologi- cal treatment processes for the removal of pesticides from aqueous solutions. J Hazardous Materials, B137: 489–497.
| Files | ||
| Issue | Vol 6 No 1 (2012) | |
| Section | Articles | |
| Keywords | ||
| Pesticide Malathion Water Ultraviolet Irradiation | ||
| Rights and permissions | |
|
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
