Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Environmental Science and Technology
  Year: 2012 | Volume: 5 | Issue: 6 | Page No.: 407-418
DOI: 10.3923/jest.2012.407.418
Fenton Treatment of Chlorpyrifos, Cypermethrin and Chlorothalonil Pesticides in Aqueous Solution
Augustine Chioma Affam, Malay Chaudhuri and Shamsul Rahman M. Kutty

Abstract:
The study examined the effect of operating conditions of the Fenton process on degradation, biodegradability improvement and mineralization of chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution. Also, the degradation of the pesticides under optimum operating conditions was evaluated. The optimum operating conditions for Fenton treatment of an aqueous solution containing 100, 50 and 250 mg L-1 of chlorpyrifos, cypermethrin and chlorothalonil, respectively were observed to be H2O2/COD molar ratio 3, H2O2/Fe2+ molar ratio 10 and pH 3. Pesticide degradation increased with temperature. Under the optimum operating conditions, complete degradation of the pesticides occurred in 1 min. Biodegradability (BOD5/COD ratio) increased from zero to 0.35 and COD and TOC removal were 69.03 and 55.61%, respectively in 60 min. Due to mineralization of organic carbon, decrease in ammonia-nitrogen from 22-6.1 mg L-1 and increase in nitrate from 0.7-15.2 mg L-1 in 60 min were observed. The study indicated that Fenton process can be used for pretreatment of combined chlorpyrifos, cypermethrin and chlorothalonil aqueous solution or wastewater for biological treatment.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Behavior of Atrazine and Malathion Pesticides in Soil: Simulation of Transport Process using Numerical and Analytical Models
  •    Monitoring of Pesticide Residues in Saudi Arabia Agricultural Soils
  •    Chlorpyrifos-Induced Alteration of Hematological Parameters in Wistar Rats: Ameliorative Effect of Zinc
  •    Effect of Light and Temperature on Chlorfenapyr and Identification of its Main Degradation Products
How to cite this article:

Augustine Chioma Affam, Malay Chaudhuri and Shamsul Rahman M. Kutty, 2012. Fenton Treatment of Chlorpyrifos, Cypermethrin and Chlorothalonil Pesticides in Aqueous Solution. Journal of Environmental Science and Technology, 5: 407-418.

DOI: 10.3923/jest.2012.407.418

URL: https://scialert.net/abstract/?doi=jest.2012.407.418

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 

       

       

Curve Bottom