Tags

Type your tag names separated by a space and hit enter

Assessment of peracetic acid disinfected effluents by microbiotests.
Environ Sci Technol. 2009 Sep 01; 43(17):6579-84.ES

Abstract

Bioassays were performed by commercially available kits on peracetic acid (PAA) solutions, at different concentrations, and on secondary effluents (from two different wastewater treatment plants) after disinfection at bench-scale, considering both samples containing residual active PAA and the same samples where residual PAA was quenched. Four indicator organisms were used: Vibrio fischeri, Thamnocephalus platyurus, Daphnia magna, and Selenastrum capricornutum. The experiments lead to conclude that Thamnocephalus platyurus is a very sensitive organism, probably not adequate to perform a reliable toxicity assessment of effluents for monitoring purposes. The presence of specific organic compounds deriving from human metabolism and urban pollution, even at very low concentrations, can affect the results of bioassays, especially those performed on Vibrio fischeri. PAA is toxic for bacteria and crustaceans even at concentrations lower than the ones commonly used in wastewater disinfection (2-5 mg/L), while its effect on algae is smaller. The toxic effect on bacteria was expected, as PAA is used for disinfection, but its possible influence on biological processes in the receiving aquatic environment should be considered. Toxicity on crustaceans would confirm the fact that discharging disinfected effluents could raise some environmental problems.

Authors+Show Affiliations

Antonelli M
Politecnico di Milano, DIIAR-Environmental Section, Piazza Leonardo da Vinci 32, 20133 Milano. manuela.antonelli@polimi.it
Mezzanotte V
No affiliation info available
Panouillères M
No affiliation info available

MeSH

Aliivibrio fischeriAnimalsAnostracaBiological AssayChlorophytaDaphniaDisinfectantsDisinfectionPeracetic AcidToxicity TestsWater Purification

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19764220

Citation

Antonelli, M, et al. "Assessment of Peracetic Acid Disinfected Effluents By Microbiotests." Environmental Science & Technology, vol. 43, no. 17, 2009, pp. 6579-84.
Antonelli M, Mezzanotte V, Panouillères M. Assessment of peracetic acid disinfected effluents by microbiotests. Environ Sci Technol. 2009;43(17):6579-84.
Antonelli, M., Mezzanotte, V., & Panouillères, M. (2009). Assessment of peracetic acid disinfected effluents by microbiotests. Environmental Science & Technology, 43(17), 6579-84.
Antonelli M, Mezzanotte V, Panouillères M. Assessment of Peracetic Acid Disinfected Effluents By Microbiotests. Environ Sci Technol. 2009 Sep 1;43(17):6579-84. PubMed PMID: 19764220.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessment of peracetic acid disinfected effluents by microbiotests. AU - Antonelli,M, AU - Mezzanotte,V, AU - Panouillères,M, PY - 2009/9/22/entrez PY - 2009/9/22/pubmed PY - 2009/12/16/medline SP - 6579 EP - 84 JF - Environmental science & technology JO - Environ Sci Technol VL - 43 IS - 17 N2 - Bioassays were performed by commercially available kits on peracetic acid (PAA) solutions, at different concentrations, and on secondary effluents (from two different wastewater treatment plants) after disinfection at bench-scale, considering both samples containing residual active PAA and the same samples where residual PAA was quenched. Four indicator organisms were used: Vibrio fischeri, Thamnocephalus platyurus, Daphnia magna, and Selenastrum capricornutum. The experiments lead to conclude that Thamnocephalus platyurus is a very sensitive organism, probably not adequate to perform a reliable toxicity assessment of effluents for monitoring purposes. The presence of specific organic compounds deriving from human metabolism and urban pollution, even at very low concentrations, can affect the results of bioassays, especially those performed on Vibrio fischeri. PAA is toxic for bacteria and crustaceans even at concentrations lower than the ones commonly used in wastewater disinfection (2-5 mg/L), while its effect on algae is smaller. The toxic effect on bacteria was expected, as PAA is used for disinfection, but its possible influence on biological processes in the receiving aquatic environment should be considered. Toxicity on crustaceans would confirm the fact that discharging disinfected effluents could raise some environmental problems. SN - 0013-936X UR - https://www.unboundmedicine.com/medline/citation/19764220/Assessment_of_peracetic_acid_disinfected_effluents_by_microbiotests_ L2 - https://doi.org/10.1021/es900913t DB - PRIME DP - Unbound Medicine ER -