CHARECTERISATION OF SPENTWASH AND PIEZOMETER SAMPLES BY GC-MSR. JAYASHREE, K. SUGANYA AND BACKIYATHU SALIKA
Postmethanated Distillery Spentwash (PMDSW) contains a large amount of salts and plant nutrients. Therefore monitoring and charecterisation of spentwash and piezometer leachates are necessary to prevent groundwater contamination. The PMDSW and piezometer leachates were analysed in GC-MS to check the contamination of organic compounds present in spentwash on ground water. On GCMS analysis different compounds like 7-Oxabicyclo-dec-4-en-8-one, 1,2-Dimethyl-4-heptylcyclohexane, Tert- Hexadecanethiol, Hexadecanoic acid 1,2-Bis(1-butyn-3-onyl)benzene, 7,9-di-tert-butyl-1-oxaspirodecadienedione, 1,2-Benzenedicarboxylic acid, Squalene were present in the spent wash. Comparing both PMDSW the piezometer leachates compounds like Tert-Hexadecanethiol, Hexadecanoic acid, 7,9-di-tertbutyl- 1-oxaspiro-decadienedione were present in both spentwash and leachate sample. The spentwash leachate from piezometer contains only a limited number of compounds present in the spentwash. This suggests that there is limited chance for contamination of organic compounds from spentwash on groundwater.