Minimization of Hazardous Waste Generation: Preliminary Investigation of Waste Management Properties of a Solvent Substitute for TCEby 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,
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: Biological processes | Volatilization | Toxicity | Waste treatment | Hazardous wastes | TCE
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