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Title: Effect of preozonation on the anaerobic biodegradability of resistant phenolic compounds

Abstract

Ozone pretreatment studies of four model phenolic compounds were conducted to evaluate the effects of ozonation on the anaerobic biodegradability and toxicity of these compounds. Two types of batch studies, the Biochemical Methane Potential (BMP) and the Anaerobic Toxicity Assay (ATA), were performed on samples ozonated upon phenol, o-cresol, 2,5-dichlorophenol and 2,4-dinitrophenol. Experimental results showed that toxic and refractory phenolic compounds were converted to methane gas by means of preozonation. In general, the biodegradable fraction of the oxidation products increased as the ozone dose was increased. The early ozonation products of o-cresol and phenol, however, were more toxic than the initial compounds. The rates of COD and Dissolved Organic Carbon (DOC) reduction through ozonation were faster and products formed were less inhibitory in the basic pH range than in the acid pH range.

Authors:
; ;
Publication Date:
Research Org.:
Kentucky Univ., Lexington (USA). Water Resources Research Inst.
OSTI Identifier:
6654836
Report Number(s):
PB-89-115505/XAB; RR-169
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; OZONIZATION; CHEMICAL REACTION KINETICS; PHENOLS; ANAEROBIC DIGESTION; BIODEGRADATION; TOXICITY; BIOSYNTHESIS; ACETATES; BIOASSAY; CHEMICAL OXYGEN DEMAND; CRESOLS; DESIGN; METHANE; ALKANES; AROMATICS; BIOCONVERSION; CARBOXYLIC ACID SALTS; CHEMICAL REACTIONS; DECOMPOSITION; DIGESTION; HYDROCARBONS; HYDROXY COMPOUNDS; KINETICS; MANAGEMENT; ORGANIC COMPOUNDS; PROCESSING; REACTION KINETICS; SYNTHESIS; WASTE MANAGEMENT; WASTE PROCESSING; 090120* - Hydrocarbon Fuels- Preparation- (1976-1989)

Citation Formats

Wang, Y T, Pai, P C, and Latchew, J L. Effect of preozonation on the anaerobic biodegradability of resistant phenolic compounds. United States: N. p., 1988. Web.
Wang, Y T, Pai, P C, & Latchew, J L. Effect of preozonation on the anaerobic biodegradability of resistant phenolic compounds. United States.
Wang, Y T, Pai, P C, and Latchew, J L. 1988. "Effect of preozonation on the anaerobic biodegradability of resistant phenolic compounds". United States.
@article{osti_6654836,
title = {Effect of preozonation on the anaerobic biodegradability of resistant phenolic compounds},
author = {Wang, Y T and Pai, P C and Latchew, J L},
abstractNote = {Ozone pretreatment studies of four model phenolic compounds were conducted to evaluate the effects of ozonation on the anaerobic biodegradability and toxicity of these compounds. Two types of batch studies, the Biochemical Methane Potential (BMP) and the Anaerobic Toxicity Assay (ATA), were performed on samples ozonated upon phenol, o-cresol, 2,5-dichlorophenol and 2,4-dinitrophenol. Experimental results showed that toxic and refractory phenolic compounds were converted to methane gas by means of preozonation. In general, the biodegradable fraction of the oxidation products increased as the ozone dose was increased. The early ozonation products of o-cresol and phenol, however, were more toxic than the initial compounds. The rates of COD and Dissolved Organic Carbon (DOC) reduction through ozonation were faster and products formed were less inhibitory in the basic pH range than in the acid pH range.},
doi = {},
url = {https://www.osti.gov/biblio/6654836}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 1988},
month = {Mon Aug 01 00:00:00 EDT 1988}
}

Technical Report:
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