Pollution Research Paper

Vol.32, Issue 02, 2013; Page No.(425-431)

POLISHING OF CHROMIUM CONTAINING TREATED TANNERY EFFLUENT BY PISTIA AND EVALUATION OF SOME CONSEQUENT STRESS EFFECTS

R. CHAKRABORTY, A.K. MITRA AND S.N. MUKHERJEE

Abstract

Hexavalent chromium Cr (VI) is a dangerous pollutant present in the tannery effluent. In the present investigation, Pistia plant was found to be an effective candidate in removing Cr (VI) from a sample of treated tannery effluent. The experimental results show that about 26.27and 66.82% removal of Cr (VI) were obtained after 24h and 72h of contact time in corresponds to initial concentration of 2.17 mg/L of Cr (VI) respectively. A reduction of 70.3 and 58.03% respectively for NH3-N and NO3-N were also observed after 72h of contact period. Root was found to be more dominant for accumulating Cr (VI) than frond portion. After 72h, decrease in biomass, root length, chlorophyll content and increase in protein content, enzyme activities (SOD, POD, NR), lipid peroxidation and ascorbic acid were recorded in treated plants in comparison to control.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.150 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.