Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 9, Issue 4, 2007; Page No.(1023-1034)

THE FATE OF IIEAVY METALS IN AQUACULTURE SEWAGE TREATMENT' PLANT (ASTP)

BIBHUDATTA MISHRA, S. AYYAPPAN AND SWOYAM P. ROUT

Abstract

The distribu Lion ot hea vv incLi Is was stud led through out the process of treatment in a 1 MLD Aquaculture Sewage Treatment Hant (ASTI') based on duckweed and fish culture. Duckweed is a small floating plant having the ability to absorb heavy metals. In the present study, concentrations of dissolved free iron, copper, manganese, zinc and lead in influent were analysed through various stages of treatment. Observations reveal that considerable amount of reduction in heavy metals was affected within two days retention period in 18 nos. duckweed ponds (25m X 8m X 1.5m) and three days retention in 2 nos. fish pond (50m X 20rn X 2m) respectively. The mean percentage reduction was observed 72.04 WO, 80.55% (Cu), 90.38% (Zn), 92.89% (Mn) and 81.82 % (Pb) within the treatment complex. The removal rate of duckweed showed 1.03 g/rn:/d for iron, 0.072 g/m2/d for copper, 0.49 g/m=/d for manganese, 0.55 g/m2/ci for zinc and 0.038 g/m2/d for lead respectively. Similarly the reduction levels recorded in fish pond ensures that the fishes are safe for human consumption. None of the five heavy metals tested appeared to have any significant effects on the biomass harvest (duckweed/ fish) and treatment efficiency of the ASTP system. The newlye biological system demonstrates a low cost technology for heavy metal removal with production of treated sewage and design cost technology for heavy metal removal with production of treated sewage and safe fish yield.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.75 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.
  
Journal Issues
Vol 23, Issue 1, 2021
Vol 22, Issue 4, 2020
Vol 22, Issue 3, 2020
Vol 22, Issue 2, 2020
Vol 22, Issue 1, 2020
Vol 21, Issue 4, 2019
Vol 21, Nov. Suppl. Issue, 2019
Vol 21, Issue 3, 2019
Vol 21, Issue 2, 2019
Vol 21, Issue 1, 2019
Vol 20, Dec. Suppl. No.2, 2018
Vol 20, Issue 4, 2018
Vol 20, Dec. Suppl. Issue, 2018
Vol 20, Oct Suppl. Issue, 2018
Vol 20, Issue 3, 2018
Vol 20, Issue 2, 2018
Vol 20, Issue 1, 2018
Vol 20, Feb. Suppl. Issue, 2018
Vol 19, Issue 4, 2017
Vol 19, Nov. Suppl, Issue 2017
Vol 19, Issue 3, 2017
Vol 19, Issue 2, 2017
Vol 19, Issue 1, 2017
Vol 18, Issue 4, 2016
Vol 18, Issue 3, 2016
Vol 18, Issue 2, 2016
Vol 18, Issue 1, 2016
Vol 17, Issue 4, 2015
Vol 17, Issue 3, 2015
Vol. 17 Special Issue 2015
Vol 17, Issue 2, 2015
Vol 17, Issue 1, 2015
Vol 16, Issue 4, 2014
Vol 16, Issue 3, 2014
Vol 16, Issue 2, 2014
Vol 16, Issue 1, 2014
Vol 15, Issue 4, 2013
Vol 15, Issue 3, 2013
Vol 15, Issue 2, 2013
Vol 15 Issue 1, 2013
Vol 14, Issue 4, 2012
Vol 14, Issue 3, 2012
Vol 14, Issue 2, 2012
Vol.14, Issue 1, 2012
Vol.13, Issue 4, 2011
Vol.13, Issue 3, 2011
Vol.13, Issue 2, 2011
Vol.13, Issue 1, 2011
Vol.12, Issue 4, 2010
Vol.12, Issue 3, 2010
Vol.12, Issue 2, 2010
Vol.12, Issue 1, 2010
Vol 11, Issue 4, 2009
Vol 11, Issue 3, 2009
Vol 11, Issue 2, 2009
Vol 11, Issue 1, 2009
Vol 10, Issue 4, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 2, 2008
Vol 10, Issue 1, 2008
Vol 9, Issue 4, 2007
Vol 9, Issue 3, 2007
Vol 9, Issue 2, 2007
Vol 9, Issue 1, 2007
Vol 8, Issue 4, 2006
Vol 8, Issue 3, 2006
Vol 08, Issue 2, 2006
Vol 08, Issue 1, 2006
Vol 7 Issue 4, 2005
Vol 07, Issue 3, 2005
Vol 07, Issue 2, 2005
Vol 6 Issue 4, 2004
Vol 6 Issue 3, 2004
Vol 6 Issue 2, 2004
Vol 6 Issue 1, 2004
Vol 5 Issue 3, 2003
Vol 5 Issue 2, 2003
Vol 04, Issue 4, 2002
Vol 04, Issue 1, 2002
Vol 3 Issue 1-2, 2001
Vol 1 Issue 1-2, 2000
Vol 1 Issue 3-4, 1999
Vol 1 Issue 1-2, 1999
Looking for Past Issues? Click here to get them!!