Activated cow-dung slurry as a tool of pesticides bioremediation
AbstractA huge amount of wastes generated every year resulting from the irrational use of pesticides in the agricultural lands of Bangladesh. The present waste disposal systems are ineffective and costly relying heavily on chemical treatments. An effort was made to develop a cheap but effective bioremediation strategy by investigating the ability of cow-dung slurry to promote the growth of microorganisms capable of degrading pesticides under controlled conditions. Soil was spiked with pesticides at varying concentrations and cow-dung slurry was applied. The microbial growth was regularly monitored and the soil extracts were analyzed until the parent compound converted into less harmful intermediates. The result shows an increase in BOD while a dramatic reduction in COD indicating the ability of cow-dung slurry to promote biodegradation. Key words: Bioremediation, cow-dung slurry, controlled condition, microbial consortia, pesticides
C Meisner. Report of Pesticide Hotspots in Bangladesh. 2004. Development economics research group Infrastructure and environment department Washington, DC: World Bank. Available at: http://documents.worldbank.org/curated/en/2004/09/8523151/report-pesticide-hotspots-Bangladesh.
S Parveen and N Nakagoshi. J Int Dev Coop, 2001, 8, 1, 107–126.
P Debarati, P Gunjan, P Janmejay and VJK Rakesh. Trends Biotechnol., 2005, 23, 3, 135-142
CFTRI. 2003 Report of analysis of pesticide residues in soft drink samples, Central Food Technological Research Institute, Mysore, India.
R Vignesh, MAB Haq and M Srinivasan. Int J Environ Resour Res, 2011, 2, 2, 752-765.
M Geetha and MH Fulekar. African Journal of Environmental Science and Technology, 2008, 2, 2, 36-45.
N Fierer. Soil Microbial Biomass Determination. Stress Ecology and the Dynamics of Microbial Communities and Processes in Soil. University of California, USA, 2003; pp. 226
UC Brinch, F Ekelund and CS Jacobsen. Applied and Environ Microbiol, 2002, 68, 4, 1808 – 1816.
APHA AWWA WPCF. 1995. Standard Methods for the Examination of Water and Wastewater. American Public
Health Association / American Water Works Association/Water Environmental Federation, 19thEdition, Washington DC.
EPA. Pesticide Product databases, Environmental Protection Agency. Washington, D.C. 2005
LT Ou, KSV Edvardsson and PSC Rao. J Agric Food Chem, 1985, 33, 72-78.
BS Rajagopal and N Sethunathan. Pesticide Science, 1984, 15, 6, 591-599.
S Baskaran, RS Kookana and R Naidu. Australian J of Soil Res, 2003, 41, 4, 749 – 760.
BK. Singh, A Walker, AW Morgan and DJ Wright. Applied and Environ Microbiol, 2003a , 69, 9, 5198 –5206.
BK Singh, A Walker, AW Morgan and DJ Wright . Applied and Environ Microbiol, 2003b, 70, 8, 4855 –4863.
B Seyfried. Degradation of 14C-diazinon (G 24480) in one soil incubated under various experimental conditions
(Project No. 351358.) Novartis Crop Protection.Basel, Switzerland, 1994
JRW Miles and CR Harris. J Econ Entomol, 1978, 71, 125-131.
SR Schoen and WL Winterlin. J Environ Sci Health, 1987, B22: 347-377.
S Barik and DM Munnecke. Bull Environ Contam Toxicol, 1982, 29, 235-239.
HB Gunner, and BM Zuckerman. Nature, 1968, 217, 1183-1184.
SE Maloney, A Maule and ARW Smith. Applied and Environ Microbiology, 1988, 54, 11, 2874-2876.
D Singh and MH Fulekar. Innovative Romanian Food Biotech, 2007 1, 1, 30 –35.
X Huang, LS Lee and C Nakatsu. Environ Toxicol. Chem, 2000, 19, 12, 2864-2870.
ND Camper, MM Fleming and HD Skipper. Bull Environ Contam Toxicol, 1987, 39, 571-578.