VEGETABLE OIL INJECTION FOR IN SITU REMEDIATION OF TCE: PHYSICAL/CHEMICAL EFFECTS
Authors: Bielefeldt, Angela R.; Pfeiffer, Patricia; Illangasekare, T.; Dai, D.
Source: Proceedings of the Water Environment Federation, WEFTEC 2002: Session 81 through Session 89 , pp. 403-411(9)
Publisher: Water Environment Federation
Abstract:Chlorinated ethenes are among the most widely detected groundwater contaminants. The addition of vegetable oil (VegOil) into the groundwater to enhance the biodegradation of chlorinated ethenes via reductive dechlorination may have advantages over alternative carbon substrates due to its low cost and the potential for slow release over time. The physical and chemical interaction of VegOil with chlorinated ethenes (both dissolved and non-aqueous phase liquids) was experimentally evaluated in batch and flow tests. If the VegOil mixes with trapped residual DNAPLs in the subsurface, the viscosity of the NAPL will be higher than the pure DNAPL and the interfacial tension will generally be lower. Therefore net effects on NAPL mobility are uncertain. Significant partitioning of the chlorinated ethenes into VegOil occurred which can serve to help attenuate contaminant plumes. Results indicate that VegOil addition should be beneficial for risk management at sites contaminated with chlorinated ethenes due to its physical/chemical effects, in addition to the potential for enhanced biodegradation.
Document Type: Research article
Publication date: 2002-01-01
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- ingentaconnect is not responsible for the content or availability of external websites