Ecotoxicological risk assessment of hospital wastewater: a proposed framework for raw effluents discharging into urban sewer network

Emmanuel, Évens; Perrodin, Yves; Keck, Gérard; Blanchard, Jean‐Marie; Vermande, P.

doi:10.1016/j.jhazmat.2004.08.032

Cited by 199 publications

(108 citation statements)

References 25 publications

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“…não metabolizadas por pacientes 3 . A ocorrência de ambientes fortemente seletivos para os microrganismos recuperados de efluentes hospitalares, gera um aumento da freqüência de genes de resistência bacteriana.…”

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Pseudomonas aeruginosa: disseminação de resistência antimicrobiana em efluente hospitalar e água superficial

Fuentefria

Ferreira

Gräf

et al. 2008

Rev. Soc. Bras. Med. Trop.

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Revista da Sociedade Brasileira de Medicina Tropical 41(5):470-473, set-out, 2008 ARTIGO/ARTICLEAntibióticos e bactérias resistentes são descartados em grandes quantidades no ambiente 6 como resultado do aumento e freqüente uso indiscriminado de antibióticos nas práticas médicas, veterinárias e agrárias. As águas dos rios são os principais receptores desses poluentes, uma vez que recebem os esgotos urbano, industrial e hospitalar. Os rios são considerados uma das principais fontes de água, direta ou indiretamente, para consumo humano e animal, portanto, esta poluição pode contribuir para a manutenção e até disseminação da resistência bacteriana 5 . O esgoto hospitalar, especificamente, libera uma variedade de substâncias além de antibióticos, tais como fármacos, desinfetantes, anestésicos, metais pesados e drogas ABSTRACTThe aim of this study was to compare sewage samples from Hospital São Vicente de Paulo with water samples from the Passo Fundo river, with regard to the susceptibility profile of Pseudomonas aeruginosa isolates, in order to make inferences about the presence of strains of hospital origin in surface water samples. The statistical significance between the susceptibility profiles of the samples was tested using analysis of variance, and the samples were compared by means of contrasts of interest. One hundred and ninety-eight isolates of Pseudomonas aeruginosa were recovered from the samples analyzed. No phenotype for multiresistance was found in the samples from the Passo Fundo river, although some carbapenem-resistant isolates were identified, thereby indicating the presence of contamination with bacteria derived from an environment under strong selection pressure. Significant differences between the water and hospital effluent samples were observed, based on the analysis of variance by means of contrasts of interest. Key-words:Pseudomonas aeruginosa. Bacterial resistance. Surface water. Hospital sewage.não metabolizadas por pacientes 3 . A ocorrência de ambientes fortemente seletivos para os microrganismos recuperados de efluentes hospitalares, gera um aumento da freqüência de genes de resistência bacteriana. Estudos têm demonstrado que efluentes hospitalares apresentam níveis mais elevados de bactérias entéricas resistentes a antimicrobianos do que efluentes derivados de outras fontes e, que a concentração de antimicrobianos na água que recebe o esgoto hospitalar também é superior, criando um ambiente com forte pressão seletiva 10 . Além disso, as precárias condições de saneamento básico e a falta de tratamento dos efluentes hospitalares podem estabelecer rotas de disseminação de bactérias multirresistentes 1 13 .

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Pseudomonas aeruginosa: disseminação de resistência antimicrobiana em efluente hospitalar e água superficial

Fuentefria

Ferreira

Gräf

et al. 2008

Rev. Soc. Bras. Med. Trop.

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“…Conversely, the other analysed effluents had a lower BOD 5 / COD ratio (under 0.4) demonstrating that these waste waters can be very hard to biodegrade using the conventional biological treatment. The low BOD 5 /COD ratio indicates the presence of some persistent substances such as antibiotics, hormones, cytostatic drugs, carbamazepine, X-ray contrast media, carbamazepine and other acidic drugs such as clofibric acid, which are very hard biodegradable (Emmanuel et al, 2005).…”

Section: Fig 1 Location Of the Sampling Pointsmentioning

confidence: 99%

“…Generally, the hospitals water demand varies from 400 to 1,200 l/bed/day, with a minimal domestic water consumption of 100 l/person/day (Emmanuel et al, 2005). In the developing countries, a hospital's average water consumption is estimated at 500 l/bed/day, while in the developed countries this value can be double, for example, in the USA, it reaches 968 l/bed/day (Emmanuel et al, 2005). As a consequence, hospitals generate significant volumes of waste water, which end up in the municipal sewerage network or surface water.…”

Section: Introductionmentioning

confidence: 99%

“…As a consequence, hospitals generate significant volumes of waste water, which end up in the municipal sewerage network or surface water. Sometimes, hospital effluents are discharged without a preliminary treatment, releasing many toxic substances into the aquatic environment (Emmanuel et al, 2005). These waste waters can have potential negative effects on the biological balance of natural environments, because of exposure to hazardous substances like viruses, pathogenic bacteria disinfectants, nonmetabolized pharmaceuticals and radionuclides (Emmanuel et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Sometimes, hospital effluents are discharged without a preliminary treatment, releasing many toxic substances into the aquatic environment (Emmanuel et al, 2005). These waste waters can have potential negative effects on the biological balance of natural environments, because of exposure to hazardous substances like viruses, pathogenic bacteria disinfectants, nonmetabolized pharmaceuticals and radionuclides (Emmanuel et al, 2005). There are many studies (Emmmanuel et al, 2004;Emmanuel et al, 2005;Heberer, 2002) which have reported the toxic effects of hospital waste water on aquatic organisms.…”

Section: Introductionmentioning

confidence: 99%

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Quality Assessment of Waste Waters Generated by some Important Hospitals from Cluj County

Opriş¹,

Roba²,

Copaciu³

et al. 2016

BUASVMCN-ASB

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Hospitals produce large quantities of waste water that may contain various potentially hazardous materials. Moreover, these effluents usually do not undergo any specific treatment before being discharged into the urban sewage networks. As a consequence, a proper management of hospital effluents is vital. In the present study, the quality of the effluents generated by 11 important hospitals in Cluj County was investigated. The analysed parameters were: pH, chemical and biochemical oxygen demand, total suspended solids, residual free chlorine, and detergents. For all the effluents, the biochemical oxygen demand and the detergents content were within the permissible limits for waste water discharged in the urban sewerage system, while the other parameters exceeded the permissible limits.

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Removal of Contaminants of Emerging Concern from Wastewater

Dosoretz

2019

Encyclopedia of Water

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Increased awareness regarding water pollution and resources conservation due to water scarcity and climate change, combined with intensive urbanization and agricultural production, have raised the need for removal of contaminants of emerging concern (CEC) from treated effluents. CEC include, among others, pharmaceuticals, cleaning and sanitation products, endocrine disrupting compounds, suspected carcinogens, and nanomaterials at trace concentration. Added to this are antibiotic‐resistant bacteria (ARB) and antibiotic‐resistant genes (ARG). Conventional wastewater treatment removes bulk organic contaminants leaving CEC in the effluents. This article discusses the incorporation of advanced treatments such as oxidation processes, adsorption, and tight membrane separation, i.e. reverse osmosis (RO), aimed at removing CEC from effluents. Owing to its generic capability to remove dissolved organic and inorganic contaminants at once, RO appears as the core technology for effluents purification. Besides improvements of existing municipal effluents, changes in conception, management and planning of the urban water systems, e.g. reduction at source and decentralization approaches, are required. Removal of dissolved organic pollutants and mineral contaminants at trace levels cannot be done without consuming energy. The water–energy nexus and related life cycle analyses need to be rethought in terms of environmental and health risks and deterioration of water resources and soils.

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Ecotoxicological risk assessment of hospital wastewater: a proposed framework for raw effluents discharging into urban sewer network

Cited by 199 publications

References 25 publications

Pseudomonas aeruginosa: disseminação de resistência antimicrobiana em efluente hospitalar e água superficial

Pseudomonas aeruginosa: disseminação de resistência antimicrobiana em efluente hospitalar e água superficial

Quality Assessment of Waste Waters Generated by some Important Hospitals from Cluj County

Removal of Contaminants of Emerging Concern from Wastewater

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