Testes de toxicidade aguda através de bioensaios no extrato solubilizado dos resíduos classe II A - não inertes e classe II B - inertes

Rodrigues, Nébora Liz Vendramin Brasil; Pawlowsky, Urivald

doi:10.1590/s1413-41522007000100002

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For phytotoxicity evaluation of textile sludge the sample preparation techniques most usually used were: (a) aqueous extraction (leaching or solubilization) (Araújo et al, 2001;; (b) sample dilution in a control soil (Araújo et al, 2007;Rosa et al, 2007a, b) and (c) sample in natura (El Hammadi et al, 2007). For aquatic organisms aqueous extracts obtained at natural and acidic pH were employed (Park et al, 2005, Rodrigues & Pawlowsky, 2007Rosa et al, 2007a). For bacteria, depending on the endpoint of the toxicity test either aqueous (Rodrigues & Pawlowsky, 2007;Rosa et al, 2007a;Park et al, 2005, Mathur et al, 2007 or organic extracts (Umbuzeiro et al, 2004) were used.…”

Section: Sludge Sample Preparationmentioning

confidence: 99%

“…For aquatic organisms aqueous extracts obtained at natural and acidic pH were employed (Park et al, 2005, Rodrigues & Pawlowsky, 2007Rosa et al, 2007a). For bacteria, depending on the endpoint of the toxicity test either aqueous (Rodrigues & Pawlowsky, 2007;Rosa et al, 2007a;Park et al, 2005, Mathur et al, 2007 or organic extracts (Umbuzeiro et al, 2004) were used. For earthworms, samples were diluted in control soil (Rosa et al, 2007a).…”

Section: Sludge Sample Preparationmentioning

confidence: 99%

“…The textile sector uses amounts of water as high as 3,000 m 3 day -1 and employs toxic products in their industrial processes such as metals, solvents, surfactants and dyes. These processes produce large volumes of effluents that need to be adequately treated before their release into the environment (Dellamatrice & Monteiro, 2006a, b;Rodrigues & Pawlowsky, 2007;Arslan-Alaton & Alaton, 2007;Mathur et al, 2007;Sharma et al, 2007;Abreu et al, 2008). Biological treatment such as activated sludge has been the choice of the majority of the facilities (Kunz et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ecotoxicity of Sludges Generated by Textile Industries: a Review

Gomes¹,

Silva²,

Barbosa³

et al. 2012

JBSE

View full text Add to dashboard Cite

Textile industries consume a large amount of water and use toxic products in its processes. Consequently, they produce and release large volumes of effluents, which, treated, generate great amount of sludge. The final disposal of this sludge remains a challenge, and its ecotoxicological assessment is an important parameter to minimize its impacts. This article reviewed the ecotoxicological tests that have been employed to evaluate the hazard of such sludge. There are few papers in the literature on this issue, as well as a lack of consensus about sample preparation procedures and test organisms to be used. The test organisms most employed are higher plants, bacteria and aquatic organisms. Only one article used earthworms and one, mammals. Composting was efficient for reduction or elimination of the phytotoxicity of textile sludge. Both Daphnia magna and Vibrio fischeri showed adequate sensitivity for sludge acute toxicity evaluation. The endpoint genotoxicity using the Salmonella/ microsome assay seems to be important, because most of the obtained results were positive. More studies are needed to understand the applicability of algae, earthworms and mammals. Efforts are being made to establish a reliable battery of bioassays for ecotoxicological evaluation of such waste.

show abstract

Section: Sludge Sample Preparationmentioning

confidence: 99%

Section: Sludge Sample Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ecotoxicity of Sludges Generated by Textile Industries: a Review

Gomes¹,

Silva²,

Barbosa³

et al. 2012

JBSE

View full text Add to dashboard Cite

show abstract

Estudo da degradação do antibiótico sulfametoxazol em solução aquosa por fotólise.

Bastos¹

View full text Add to dashboard Cite

Prediction of Leachate Characteristics via an Analysis of the Solubilized Extract of the Organic Fraction of Domestic Solid Waste from the Municipality of Belém, PA

Pereira,

da Costa Assunção,

da Silva

et al. 2023

Sustainability

View full text Add to dashboard Cite

This work aimed to predict the physical–chemical characteristics of leachate according to the analysis of the solubilized extract from urban household solid waste (UHSW), on a laboratory scale, in the city of Belém/PA, Brazil. The neighborhoods where the waste was collected were sectorized based on geographic and socioeconomic data, with family income as the main parameter. After collection, the material was sent to the segregation area, where a gravimetric analysis of the UHSW was performed and fractions (paper, cardboard, Tetra Pak, rigid plastic, malleable plastic, metals, glass, organic matter, sanitary waste, fabrics and rejects) were segregated. After the gravimetric characterization, it was found that the highest average proportions were 55.57% organic matter, 14.26% sanitary waste and 9.97% malleable plastic. The organic fraction was selected and subjected to drying, crushing, sieving and packaging pretreatment, and then the solubilized extract of this fraction was obtained according to NBR No. 10.006/2004 of the Brazilian Association of Technical Standards. In the analyses of the solubilized extract, values for total nitrogen (201.80 to 359.90 mg·L−1), ammonia nitrogen (161 to 289 mg·L−1), nitrate (10 to 40 mg·L−1) and chemical oxygen demand were obtained (28,701 mg·L−1 to 38,608 mg·L−1), indicating the similarity of the waste solubilization conditions to those of leachate from landfills, in addition to being in noncompliance with environmental and health legislation, thus making it necessary to have an efficient waste management system, which avoids the release of waste into the environment that would result in environmental impacts similar to those of leachate contact with the environment.

show abstract

Testes de toxicidade aguda através de bioensaios no extrato solubilizado dos resíduos classe II A - não inertes e classe II B - inertes

Cited by 3 publications

References 0 publications

Ecotoxicity of Sludges Generated by Textile Industries: a Review

Ecotoxicity of Sludges Generated by Textile Industries: a Review

Estudo da degradação do antibiótico sulfametoxazol em solução aquosa por fotólise.

Prediction of Leachate Characteristics via an Analysis of the Solubilized Extract of the Organic Fraction of Domestic Solid Waste from the Municipality of Belém, PA

Contact Info

Product

Resources

About