Biodegradation of perchloroethylene by cometabolism under Fe reductive environment
This paper presents research on perchloroethylene cometabolism of groundwater spiked with acetate acid under Fc reductive environment by batch experiments. The activated sludge from a wastewater treatment plant was inoculated with a mixture of groundwater and soil, which was from a garden. When there was a large enough microorganism population, acclimation experiment was carried out with acetate acid as co metabolism substrate. Then the microorganism was used to degrade PCE. The results show that the microorganism population and activity increased with time and reached a maximum on the 11th day during every acclimation period. Ninety percent PCE was removed and Fe(Ⅱ)s concentration was 68.23 mg/L after 13 days. In the process of PCE degradation, TCE appeared after 1 day and a few μg/L of DCE was produced after 10 days. TCE concentrations decrease was not observed. The carbon balance in this reaction system is between 89.00～100.0％.
F.Liu Y.Li H.H.Chen D.R.Miao
Beijing Key Laboratory of Water Resources Environmental Engineering, China University of Geosciences Third Geology Brigade, Yunnan Bureau of Exploration and Development of Mineral Resources, China
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
1601-1604
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）