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A comparative study of different tests for biodegradability enhancement determination during AOP treatment of recalcitrant toxic aqueous solutions.
Ecotoxicol Environ Saf. 2010 Sep; 73(6):1189-95.EE

Abstract

Four biodegradability tests (Pseudomonas putida bioassay, Zahn-Wellens test, BOD5/COD ratio and respirometry assay) have been used to determine the biodegradability enhancement during the treatment of wastewater containing 200 mg L(-1) of dissolved organic carbon (DOC) of a five commercial pesticides mixture (Vydate, Metomur, Couraze, Ditumur and Scala) by an advanced oxidation process (AOP). A comparative study was carried out taking into account repeatability and precision of each biodegradability test. Solar photo-Fenton was the AOP selected for pesticide degradation up to three levels of mineralization: 20%, 40% and 60% of initial DOC. Intra- and interday precisions were evaluated conducting each biodegradability test by triplicate and they were applied three times on different dates over a period of three months. Fisher's least significant difference method was applied to the means, P. putida and Zahn-Wellens tests giving higher repeatability and precision. The P. putida test requires a shorter time to obtain reliable results using a standardized inoculum and constitutes a worthwhile alternative to estimate biodegradability in contrast to other less accurate or more time consuming methods.

Authors+Show Affiliations

Department of Chemical Engineering, University of Almería, 04120 Almería, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20691475

Citation

Ballesteros Martín, M M., et al. "A Comparative Study of Different Tests for Biodegradability Enhancement Determination During AOP Treatment of Recalcitrant Toxic Aqueous Solutions." Ecotoxicology and Environmental Safety, vol. 73, no. 6, 2010, pp. 1189-95.
Ballesteros Martín MM, Casas López JL, Oller I, et al. A comparative study of different tests for biodegradability enhancement determination during AOP treatment of recalcitrant toxic aqueous solutions. Ecotoxicol Environ Saf. 2010;73(6):1189-95.
Ballesteros Martín, M. M., Casas López, J. L., Oller, I., Malato, S., & Sánchez Pérez, J. A. (2010). A comparative study of different tests for biodegradability enhancement determination during AOP treatment of recalcitrant toxic aqueous solutions. Ecotoxicology and Environmental Safety, 73(6), 1189-95. https://doi.org/10.1016/j.ecoenv.2010.07.021
Ballesteros Martín MM, et al. A Comparative Study of Different Tests for Biodegradability Enhancement Determination During AOP Treatment of Recalcitrant Toxic Aqueous Solutions. Ecotoxicol Environ Saf. 2010;73(6):1189-95. PubMed PMID: 20691475.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A comparative study of different tests for biodegradability enhancement determination during AOP treatment of recalcitrant toxic aqueous solutions. AU - Ballesteros Martín,M M, AU - Casas López,J L, AU - Oller,I, AU - Malato,S, AU - Sánchez Pérez,J A, Y1 - 2010/08/05/ PY - 2010/06/07/received PY - 2010/07/13/revised PY - 2010/07/15/accepted PY - 2010/8/10/entrez PY - 2010/8/10/pubmed PY - 2010/12/29/medline SP - 1189 EP - 95 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 73 IS - 6 N2 - Four biodegradability tests (Pseudomonas putida bioassay, Zahn-Wellens test, BOD5/COD ratio and respirometry assay) have been used to determine the biodegradability enhancement during the treatment of wastewater containing 200 mg L(-1) of dissolved organic carbon (DOC) of a five commercial pesticides mixture (Vydate, Metomur, Couraze, Ditumur and Scala) by an advanced oxidation process (AOP). A comparative study was carried out taking into account repeatability and precision of each biodegradability test. Solar photo-Fenton was the AOP selected for pesticide degradation up to three levels of mineralization: 20%, 40% and 60% of initial DOC. Intra- and interday precisions were evaluated conducting each biodegradability test by triplicate and they were applied three times on different dates over a period of three months. Fisher's least significant difference method was applied to the means, P. putida and Zahn-Wellens tests giving higher repeatability and precision. The P. putida test requires a shorter time to obtain reliable results using a standardized inoculum and constitutes a worthwhile alternative to estimate biodegradability in contrast to other less accurate or more time consuming methods. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/20691475/A_comparative_study_of_different_tests_for_biodegradability_enhancement_determination_during_AOP_treatment_of_recalcitrant_toxic_aqueous_solutions_ DB - PRIME DP - Unbound Medicine ER -