Radiation processing of wastewater evaluated by toxicity assays

Borrely, Sueli Ivone; Sampa, M.H.O.; Pedroso, C.B; Oikawa, Hisashi; Silveira, C.G.; Cherbakian, E.H; Santos, Marta

doi:10.1016/s0969-806x(99)00418-1

Cited by 22 publications

(10 citation statements)

References 2 publications

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“…Quanto à avaliação da toxicidade do medicamento Prozac®, formulado com o cloridrato de fluoxetina, os ensaios de toxicidade foram realizados pelo Laboratório de Ensaios Biológicos Ambientais do IPEN-CNEN/SP, que aplica essa ferramenta tanto para determinar efeitos de contaminantes a organismos aquáticos, quanto para avaliar a eficiência do tratamento de efluentes na redução da toxicidade aquática 10,11,13 . Num terceiro plano, foram organizadas informações relacionadas à presença de resíduos de medicamento no ambiente aquático e riscos associados, que visam à disposição adequada desse tipo de resíduos no ambiente e, antes disso, sua produção e utilização, trazendo uma discussão de quantas e quais ações são necessá-rias em busca de gerenciamento adequado para esse tipo de resíduo no País.…”

Section: Métodounclassified

Contaminação das águas por resíduos de medicamentos: ênfase ao cloridrato de fluoxetina

et al. 2012

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ResumoEste trabalho teve como objetivo fazer um levantamento sucinto da presença de resíduos de medicamentos no ambiente aquático e em estações de tratamento de esgotos, bem como discutir a necessidade iminente de ações que possam auxiliar nesse tipo de contaminação ao reduzir as emissões, orientar o gerenciamento adequado de resíduos de farmácia e de descarte em domicílios. Além disso, foram apresentados resultados de ensaios ecotoxicológicos empregados na avaliação de efeitos da fluoxetina em Vibrio fischeri e em H. azteca, organismos aquáticos frequentemente expostos a contaminantes ambientais. Dos resultados obtidos, observou-se que a partir de 0,3 mg. AbstractThe objective of this paper was to review data on residues of medical products in aquatic environments and at wastewater treatment plants. Secondarily the paper presents a discussion about the need for a good management of drugs residues and effluents generated by this sector. Bringing the evidences of environmental possible damages reported by ecotoxicity data on the effects of fluoxetine to Vibrio fischeri and H. azteca, aquatic organisms daily exposed to environmental contaminants. From the results we observed that 0.3 mg.l-1 of fluoxetine hidrochloride induced lethality to H. azteca and 30 mg.l-1 reduced the luminescence of Vibrio fischeri. This assay evidenced higher toxicity when we used the "generic" product.

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Section: Métodounclassified

Contaminação das águas por resíduos de medicamentos: ênfase ao cloridrato de fluoxetina

et al. 2012

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“…However, these methods have the disadvantage of posing substantial risk of contaminating the sample, mainly samples containing metals at trace level, besides requiring high reactant consumption and long mineralization time. Thus, the advanced oxidation mineralization through ionizing radiation is an alternative to the conventional acid mineralization [4,7,9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Advanced Oxidative Processes (AOP) can mineralize organic compounds [9] and have been adopted in the environmental assessment of contaminated areas, mainly in the treatment of wastewater, due to the complex characterization of these wastes. …”

Section: Introductionmentioning

confidence: 99%

Applying Ionizing Radiation to Metal Speciation for the Environmental Assessment of Underground Aquifer Associated with Technogenic Landfill Containing Sludge from A Water Treatment Plant (WTP)

Ral¹,

R²,

Abda³

2018

J Bioremediat Biodegrad

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This study was carried out in a technogenic landfill of sludge from the Taiaçupeba Water Treatment Station, Suzano, Brazil. The availability of this residue is a problem, since the presence of heavy metals in the sludge increases the risk of contamination of the physical environment, especially the soils and groundwater. The metal dosage methodologies in the samples took into account the presence of organic matter, and the use of technologies based on Advanced Oxidative Processes (AOPs) were applied to lead to the complete mineralization of metallic chemical elements. The results indicated that the irradiated samples presented higher metals dosages in relation to the non irradiated samples. The application of water analysis techniques through advanced oxidation processes (AOP) such as radiolysis indicated that contents found in environments containing high organic matter concentration, such as the samples collected in the technogenic landfill where the sludge was deposited, presented different values from those analyzed through conventional techniques.

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“…Flue gas and VOCs purification [4][5][6], sewage sludge treatment, soil and ground water remediation, as well as enhancing and degrading the strength of the materials such as polymers [7] and decreasing toxicity [8] are also excellent examples of application.…”

Section: Introductionmentioning

confidence: 99%

Destruction of PCBs in transformer oil by an E-beam

Jung¹,

Mah²,

Lee³

2008

WIT Transactions on Ecology and the Environment

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Transformer oil contaminated with 74 ppm of PCBs was decomposed by an electron accelerator of 1.5 MeV energy, 50 mA beam current, and 75 kW power. Sample oil contaminated with PCBs was obtained from the transformer commercially used for more than 30 years and stocked in an electric power company in Korea for treatment. Irradiation was carried out at normal temperature and pressure without any pre-treatment and any additives. Physical and electrical properties were maintained after irradiation. It seems to be clear that the concentration of the PCBs decreased with increasing dose of irradiation. No peak of PCBs was observed at the dose of 200 kGy. Electron beam degradation of PCBs can be a useful tool for treatment of the PCBs contaminated transformer oil.

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Radiation processing of wastewater evaluated by toxicity assays

Cited by 22 publications

References 2 publications

Contaminação das águas por resíduos de medicamentos: ênfase ao cloridrato de fluoxetina

Contaminação das águas por resíduos de medicamentos: ênfase ao cloridrato de fluoxetina

Applying Ionizing Radiation to Metal Speciation for the Environmental Assessment of Underground Aquifer Associated with Technogenic Landfill Containing Sludge from A Water Treatment Plant (WTP)

Destruction of PCBs in transformer oil by an E-beam

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