Radiation processing of detergents and possible environmental benefits

• Autorzy: Borrely S. I. , Romanelli M. F. , Pereira M. C. C. , da Silva G. P. , Mesquita L. C. A. , de Moraes M. C. F.
• Konferencja: Proceedings of the International Conference on Recent Developments and Applications of Nuclear Technologies 15-17 September 2008, Białowieża, Poland
• Języki publikacji: EN

Abstrakty

EN

Detergents at waters inducing negative changes for biological degradability and water general quality. Some authors have evidenced a considerable amount of anionic surfactant and toxic effects into natural water and effluents related to detergents. The objective of the study was to apply electron irradiation for reducing toxicity, and for degradation of surfactants. To quantify surfactant LAS determination as MBAS (metylene blue active substances) was applied. The capacity of radiation to reduce surfactants was evidenced for real effluent and for water solution containing sodium dodecyl sulfate, linear alkylbenzene sulfonate (LAS), separately. An electron beam accelerator (EBA) 1.5 MeV was the radiation source. Anionic surfactant solutions as well as real effluents resulted in less toxic samples after irradiation. Toxicity was evaluated for Vibrio fischeri and Daphnia similis. An important decline of total anionic surfactant was observed after irradiation to doses: 6.0 kGy and 20 kGy (surfactant in water solutions and effluents, respectively). To conclude, EBA irradiations accounted for 88% to 96% less toxic surfactants solutions and effluents and 68% to 96% for MBAS compounds decomposition.

Słowa kluczowe

EN

EB irradiadion; anionic surfactants; effluent; Vibrio fischeri; Daphnia similis

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2009
• Tom: Vol. 54, No. 2
• Strony: 61--64
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Borrely S. I.

autor

Romanelli M. F.

autor

Pereira M. C. C.

autor

da Silva G. P.

autor

Mesquita L. C. A.

autor

de Moraes M. C. F.

• Radiation Technology Center (IPEN-CNEN/SP), 2242 Prof. Lineu Prestes Ave., 05508-000, Săo Paulo, Brazil, Tel.: [phone], Fax: [phone],

Bibliografia

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