نتایج جستجو برای: thiosulfate

تعداد نتایج: 2782  

2017
Sachiko Masuda Hauke Hennecke Hans-Martin Fischer

One of the many disparate lifestyles of Bradyrhizobium diazoefficiens is chemolithotrophic growth with thiosulfate as an electron donor for respiration. The employed carbon source may be CO₂ (autotrophy) or an organic compound such as succinate (mixotrophy). Here, we discovered three new facets of this capacity: (i) When thiosulfate and succinate were consumed concomitantly in conditions of mix...

Journal: :Journal of environmental sciences 2007
Jian-song Mo Zhong-biao Wu Chang-jie Cheng Bao-hong Guan Wei-rong Zhao

A laboratory-scale well-mixed thermostatic reactor with continuously blasting air was used to investigate the oxidation inhibition of sulfite in dual alkali flue gas desulfurization (FGD) system. The effects of operating parameters such as pH value and catalyst concentration on the oxidation were studied. Sodium thiosulfate was used in the system, and was found that it significantly inhabited t...

Journal: :Sustainability 2022

Gold mining and processing is an activity with large environmental impact due to the low concentration of gold in ore deposits chemical resistance most chemicals. Over 75% leached from ores using cyanide, however less toxic lixiviants have been proposed literature. Thiosulfate one these alternative reagents, but high reagent consumption has slowed acceptance operations. Reducing cost thiosulfat...

Journal: :Annals of emergency medicine 2012
Vikhyat S Bebarta Rebecca L Pitotti Patricia Dixon Julio R Lairet Anneke Bush David A Tanen

STUDY OBJECTIVE We compare the efficacy of hydroxocobalamin to sodium thiosulfate to reverse the depressive effects on mean arterial pressure in a swine model of acute cyanide toxicity and gain a better understanding of the mechanism of action of the hydroxocobalamin in reversal of the toxicity. METHODS Swine were intubated, anesthetized, and instrumented with central arterial and venous line...

Journal: :Applied and environmental microbiology 2010
Jean J Huang Erin K Heiniger James B McKinlay Caroline S Harwood

A challenge for photobiological production of hydrogen gas (H(2)) as a potential biofuel is to find suitable electron-donating feedstocks. Here, we examined the inorganic compound thiosulfate as a possible electron donor for nitrogenase-catalyzed H(2) production by the purple nonsulfur phototrophic bacterium (PNSB) Rhodopseudomonas palustris. Thiosulfate is an intermediate of microbial sulfur m...

2016
Céline Boileau Richard Auria Sylvain Davidson Laurence Casalot Pierre Christen Pierre-Pol Liebgott Yannick Combet-Blanc

BACKGROUND Thermotoga maritima and T. neapolitana are hyperthermophile bacteria chosen by many research teams to produce bio-hydrogen because of their potential to ferment a wide variety of sugars with the highest theoretical H2/glucose yields. However, to develop economically sustainable bio-processes, the culture medium formulation remained to be optimized. The main aim of this study was to q...

Journal: :Frontiers of Environmental Science & Engineering 2023

Abstract The work presented here focused on the extraction of gold (Au), silver (Ag) and palladium (Pd) from electronic waste using a solution ammonium thiosulfate. Thiosulfate was used as valid alternative to cyanide for precious metal extractions, due its non-toxicity high selectivity. interactions between sodium thiosulfate, total ammonia/ammonium, concentrations particle size printed circui...

Journal: :Environmental science & technology 2007
Wei Zheng Jay Gan Sharon K Papiernik Scott R Yates

The prevalent use of soil fumigants has resulted in air pollution in some agricultural regions. Our previous research showed that application of thiosulfate fertilizers at the soil surface may offer an effective and economical approach to reduce the emission of halogenated fumigants via a chemical remediation process. In this fumigant emission-reduction strategy, volatile 1,3-dichloropropene (1...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2005
Steven R Isaacs Erin C Cutler Joon-Seo Park T Randall Lee Young-Seok Shon

This paper shows that an introduction of thiosulfate anions in place of bromide anions greatly improves both chemical and thermal stability of tetraoctylammonium-protected gold nanoparticles. Tetraoctylammonium thiosulfate [(Oct)4N+-O3SS]-protected gold nanoparticles are synthesized by the reduction of (Oct)4N+-AuCl4 to Au(I)-SSO3-, followed by the addition of sodium borohydride. The presence o...

2016
Chao Han Wei Wang Feng Xie Hugo F. Lopez

Mercury is receiving more concern due to its high mobility and high toxicity to human health and the environment. Restrictive legislations and world-wide efforts have been made on mercury control, especially the release and disposal of mercury-contaminated wastes. This paper describes a novel technology for detoxifying mercury-containing solid wastes with thiosulfate salts. Various parameters w...

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