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A reliable monitoring of the biocompatibility of an effluent along an oxidative pre-treatment by sequential bioassays and chemical analyses.
Water Res. 2009 Feb; 43(3):784-92.WR

Abstract

A new approach to assess biocompatibility of an effluent, based on combination of different bioassays and chemical analyses, has been tested using a mixture of four commercial pesticides treated by a solar photo-Fenton as target effluent. A very fast elimination of the pesticides occurred (all of them were below detection limit at t30W=36 min), but mineralisation was a more time-consuming process, due to the formation of organic intermediates and to the presence of solvents, as shown by GC-MS analysis. Measurements based on activated sludge indicated that detoxification was coincident with the removal of the active ingredients, while more sensitive Vibrio fischeri bacterium showed significant toxicity until the end of the experiment, although the effluent might be compatible with biological processes. Biodegradability of the solutions was enhanced by the photochemical process, to reach BOD5/COD ratios above 0.8. Longer time bioassays, such as the Zahn-Wellens' test, support the applicability of coupling photochemical with activated sludge-based biological processes to deal with these effluents.

Authors+Show Affiliations

Grupo Procesos Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universidad Politécnica de Valencia, Plaza Ferrándiz y Carbonell s/n, E-03801 Alcoy, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

19070346

Citation

Amat, A M., et al. "A Reliable Monitoring of the Biocompatibility of an Effluent Along an Oxidative Pre-treatment By Sequential Bioassays and Chemical Analyses." Water Research, vol. 43, no. 3, 2009, pp. 784-92.
Amat AM, Arques A, García-Ripoll A, et al. A reliable monitoring of the biocompatibility of an effluent along an oxidative pre-treatment by sequential bioassays and chemical analyses. Water Res. 2009;43(3):784-92.
Amat, A. M., Arques, A., García-Ripoll, A., Santos-Juanes, L., Vicente, R., Oller, I., Maldonado, M. I., & Malato, S. (2009). A reliable monitoring of the biocompatibility of an effluent along an oxidative pre-treatment by sequential bioassays and chemical analyses. Water Research, 43(3), 784-92. https://doi.org/10.1016/j.watres.2008.11.017
Amat AM, et al. A Reliable Monitoring of the Biocompatibility of an Effluent Along an Oxidative Pre-treatment By Sequential Bioassays and Chemical Analyses. Water Res. 2009;43(3):784-92. PubMed PMID: 19070346.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A reliable monitoring of the biocompatibility of an effluent along an oxidative pre-treatment by sequential bioassays and chemical analyses. AU - Amat,A M, AU - Arques,A, AU - García-Ripoll,A, AU - Santos-Juanes,L, AU - Vicente,R, AU - Oller,I, AU - Maldonado,M I, AU - Malato,S, Y1 - 2008/11/24/ PY - 2008/09/16/received PY - 2008/11/11/revised PY - 2008/11/12/accepted PY - 2008/12/17/entrez PY - 2008/12/17/pubmed PY - 2009/3/26/medline SP - 784 EP - 92 JF - Water research JO - Water Res VL - 43 IS - 3 N2 - A new approach to assess biocompatibility of an effluent, based on combination of different bioassays and chemical analyses, has been tested using a mixture of four commercial pesticides treated by a solar photo-Fenton as target effluent. A very fast elimination of the pesticides occurred (all of them were below detection limit at t30W=36 min), but mineralisation was a more time-consuming process, due to the formation of organic intermediates and to the presence of solvents, as shown by GC-MS analysis. Measurements based on activated sludge indicated that detoxification was coincident with the removal of the active ingredients, while more sensitive Vibrio fischeri bacterium showed significant toxicity until the end of the experiment, although the effluent might be compatible with biological processes. Biodegradability of the solutions was enhanced by the photochemical process, to reach BOD5/COD ratios above 0.8. Longer time bioassays, such as the Zahn-Wellens' test, support the applicability of coupling photochemical with activated sludge-based biological processes to deal with these effluents. SN - 0043-1354 UR - https://www.unboundmedicine.com/medline/citation/19070346/A_reliable_monitoring_of_the_biocompatibility_of_an_effluent_along_an_oxidative_pre_treatment_by_sequential_bioassays_and_chemical_analyses_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(08)00556-3 DB - PRIME DP - Unbound Medicine ER -