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Toxicity on aquatic organisms exposed to secondary effluent disinfected with chlorine, peracetic acid, ozone and UV radiation.
Ecotoxicology. 2014 Nov; 23(9):1803-13.E

Abstract

The toxic potential of four disinfectant agents (chlorine, ozone, peracetic acid and UV radiation), used in the disinfection of urban wastewater, was evaluated with respect to four aquatic organisms. Disinfection assays were carried out with wastewater from the city of Araraquara (São Paulo State, Brazil), and subsequently, toxicity bioassays were applied in order to verify possible adverse effects to the cladocerans (Ceriodaphnia silvestrii and Daphnia similis), midge larvae Chironomus xanthus and fish (Danio rerio). Under the experimental conditions tested, all the disinfectants were capable of producing harmful effects on the test organisms, except for C. xanthus. The toxicity of the effluent to C. silvestrii was observed to increase significantly as a result of disinfection using 2.5 mg L(-1) chlorine and 29.9 mg L(-1) ozone. Ozonation and chlorination significantly affected the survival of D. similis and D. rerio, causing mortality of 60 to 100 % in comparison to the non-disinfected effluent. In experiments with effluent treated with peracetic acid (PAA) and UV radiation, a statistically significant decrease in survival was only detected for D. rerio. This investigation suggested that the study of the ideal concentrations of disinfectants is a research need for ecologically safe options for the treatment of wastewater.

Authors+Show Affiliations

Oceanography and Environmental Impacts Coordination Program, COIAM, National Council for Scientific and Technological Development (CNPq), SHIS Quadra 01, Conjunto B - Bloco A - Edifício Santos Dumont, Lago Sul, Brasília, DF, CEP 71605-160, Brazil.No 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

25213288

Citation

da Costa, Juliana Berninger, et al. "Toxicity On Aquatic Organisms Exposed to Secondary Effluent Disinfected With Chlorine, Peracetic Acid, Ozone and UV Radiation." Ecotoxicology (London, England), vol. 23, no. 9, 2014, pp. 1803-13.
da Costa JB, Rodgher S, Daniel LA, et al. Toxicity on aquatic organisms exposed to secondary effluent disinfected with chlorine, peracetic acid, ozone and UV radiation. Ecotoxicology. 2014;23(9):1803-13.
da Costa, J. B., Rodgher, S., Daniel, L. A., & Espíndola, E. L. (2014). Toxicity on aquatic organisms exposed to secondary effluent disinfected with chlorine, peracetic acid, ozone and UV radiation. Ecotoxicology (London, England), 23(9), 1803-13. https://doi.org/10.1007/s10646-014-1346-z
da Costa JB, et al. Toxicity On Aquatic Organisms Exposed to Secondary Effluent Disinfected With Chlorine, Peracetic Acid, Ozone and UV Radiation. Ecotoxicology. 2014;23(9):1803-13. PubMed PMID: 25213288.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Toxicity on aquatic organisms exposed to secondary effluent disinfected with chlorine, peracetic acid, ozone and UV radiation. AU - da Costa,Juliana Berninger, AU - Rodgher,Suzelei, AU - Daniel,Luiz Antonio, AU - Espíndola,Evaldo Luiz Gaeta, Y1 - 2014/09/12/ PY - 2014/09/02/accepted PY - 2014/9/13/entrez PY - 2014/9/13/pubmed PY - 2015/3/7/medline SP - 1803 EP - 13 JF - Ecotoxicology (London, England) JO - Ecotoxicology VL - 23 IS - 9 N2 - The toxic potential of four disinfectant agents (chlorine, ozone, peracetic acid and UV radiation), used in the disinfection of urban wastewater, was evaluated with respect to four aquatic organisms. Disinfection assays were carried out with wastewater from the city of Araraquara (São Paulo State, Brazil), and subsequently, toxicity bioassays were applied in order to verify possible adverse effects to the cladocerans (Ceriodaphnia silvestrii and Daphnia similis), midge larvae Chironomus xanthus and fish (Danio rerio). Under the experimental conditions tested, all the disinfectants were capable of producing harmful effects on the test organisms, except for C. xanthus. The toxicity of the effluent to C. silvestrii was observed to increase significantly as a result of disinfection using 2.5 mg L(-1) chlorine and 29.9 mg L(-1) ozone. Ozonation and chlorination significantly affected the survival of D. similis and D. rerio, causing mortality of 60 to 100 % in comparison to the non-disinfected effluent. In experiments with effluent treated with peracetic acid (PAA) and UV radiation, a statistically significant decrease in survival was only detected for D. rerio. This investigation suggested that the study of the ideal concentrations of disinfectants is a research need for ecologically safe options for the treatment of wastewater. SN - 1573-3017 UR - https://www.unboundmedicine.com/medline/citation/25213288/Toxicity_on_aquatic_organisms_exposed_to_secondary_effluent_disinfected_with_chlorine_peracetic_acid_ozone_and_UV_radiation_ DB - PRIME DP - Unbound Medicine ER -