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Enrichment of Autotrophic Denitrifiers From Anaerobic Sludge Using Sulfurous Electron Donors
(2021-06-07)
This study compared the rates and microbial community development in batch bioassays on autotrophic denitrification using elemental sulfur (S0), pyrite (FeS2), thiosulfate (S2O32–), and sulfide (S2–) as electron donor. The ...
Effect of sulfide concentration on autotrophic denitrification from nitrate and nitrite in vertical fixed-bed reactors
(ELSEVIER SCI LTDOXFORD, 2012)
Autotrophic denitrification coupled with sulfide oxidation represents an interesting alternative for the simultaneous removal of nitrate/nitrite and sulfide from wastewaters. The applicability of such bioprocess is especially ...
Aplicação de bactérias do ciclo do enxofre no tratamento de efluentes e recuperação de enxofre elementar
(Universidade Federal de Minas GeraisUFMG, 2012-03-02)
Rapid urban growth combined with expansion of different industrial sectors, agriculture and mining lead to numerous cases of pollution and environmental degradation. Research is being conducted to find solutions more ...
Feasibility of the Redox Sulfur Recovery Process using Heteropoly Molybdophosphate
(Ecole Polytechnique de Montreal, 2016-06)
The feasibility of the removal of sulfide species using acid solutions of 12-molybdophosphoric acid was studied. The key factor in this purification process is the formation of a hydrogen-bonded structure between the ...
Emprego de ultrassom para a oxidação e separação de compostos orgânicos sulfurados em hidrocarbonetos e determinação de enxofre por técnicas espectrométricas e cromatográficas
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2009-04-13)
In this work, a process based on ultrasonic energy for sulfur removal from
petroleum fractions was proposed. The process combines ultrasonic energy and a
peroxyacid reagent in order to achieve the required sulfur content ...
An exported rhodanese-like protein is induced during growth of Acidithiobacillus ferrooxidans in metal sulfides and different sulfur compounds
(2002)
By proteomic analysis we found a 21-kDa protein (P21) from Acidithiobacillus ferrooxidans ATCC 19859 whose synthesis was greatly increased by growth of the bacteria in pyrite, thiosulfate, elemental sulfur, CuS, and ZnS ...
Aplicação de ultrassom para remoção de enxofre e de nitrogênio do óleo diesel: avaliação de parâmetros do processo e determinação de enxofre e de nitrogênio por técnicas espectrométricas e cromatográficas
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2011-09-29)
In the present work, the ultrasound assisted oxidation of sulfur and nitrogen compounds present in diesel fuel was investigated. The oxidized compounds are more polar than their original forms and can be removed from oil ...