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Minimization of Hazardous Waste Generation: Preliminary Investigation of Waste Management Properties of a Solvent Substitute for TCE

by Ricardo B. Jacquez, New Mexico State Univ, Las Cruces, United States,
Walter H. Zachritz, II, New Mexico State Univ, Las Cruces, United States,
Meei-Huey Li, New Mexico State Univ, Las Cruces, United States,
Martha I. Beach, New Mexico State Univ, Las Cruces, United States,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract:

The objective of this study was to conduct a preliminary evaluation of waste management properties of a terpene-based solvent substitute. Waste management properties which were evaluated included preliminary waste characteristics, volatilization, biodegradability, and toxic inhibition. The results showed that the terpene-based solvent is highly volatile in a dilute state. Volatilization, measured by COD reduction, appeared to follow first-order, exponential decay but variation of pH did not affect the degree of volatilization. Respiration studies demonstrated that the terpene-based solvent was biodegradable by a variety of bacterial cultures. Using a commercial, toxicity screening culture and respirometric measurements it was determined that toxicity impact of the terpene-based solvent was temporary.

Subject Headings: Solvents | Waste management | Biological processes | Hazardous wastes | Waste treatment | Toxicity | TCE

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