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Showing 1 to 10 of 10 for “"organic sulfur compounds"”.
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The reduction of organic compounds of sulfur by metals in liquid ammonia
1. A systematic study of the reduction of organic sulfur compounds by different metals in liquid ammonia is reported for the first time. 2. A metal with a high half-cell potential favors a greater extent of reduction than a lower potential metal. 3. The greater the concentration of ammonium ion as …
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The Effect of Cations on Volatile Solids Destruction, Odors, and Dewatering in anaerobic digestion
… that volatile solids destruction and volatile organic sulfur compounds generation increased proportionally as iron content in influent increased. However, they decreased as aluminum content in influent increased. It was also found that as iron content in influent increased, higher optimum …
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Investigation of Dibenzothiophene Removal from I Organic Phase: Enzymatic Approach vs. Ionic Liquids
Sulfur in fuel fractions like gasoline and diesel is responsible for acid-rain. The low levels of sulfur in fuels imposed by the environmental regulations of 15 ppm by 2006, have led to the search of alternative methods to comply with these new demands. The conventional process of …
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Very High Frequency EPR: Instrument and Applications
… methods to generate the cation radicals of these organic sulfur compounds are found. The g matrices (tensors) of the thiophenic radicals are obtained for the first time. The small differences between anisotropic components of the g matrices can be unambiguously resolved. Correlations of the …
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Effect of Addition of High Strength Food Wastes on Anaerobic Digestion of Sewage Sludge
… of digested sludge were also studied. Volatile organic sulfur compounds were analyzed on the dewatered sludge in order to monitor odors. This study showed that different high strength wastes have different impacts on digester performance. HSWs have the ability to degrade along with municipal …
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Identification and generation pattern of odor-causing compounds in dewatered biosolids during long-term storage and effect of digestion and dewatering techniques on odors
… objective of this research was to identify the compounds responsible for persistent odors in biosolids during long-term storage using olfactometry measurements and to determine their generation pattern with regard to time of appearance and decline using gas chromatography-mass spectrometry …
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Predicting organosulfur chemistry in fuel sources
Desulfurization of fossil fuels with supercritical water (SCW) has been the topic of many studies over the past few decades. This process does not require the use of any catalyst, eliminates the need for a hydrogen feed, and minimizes coke formation. Previous research has shown that it has the …
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Effect of Feed Rate and Solid Retention Time (SRT) on Effluent Quality and Sludge Characteristics in Activated Sludge Systems Using Sequencing Batch Reactors
… to form the matrix that holds microbes, other organics and inorganic particles in a flocculent mass. Numerous factors affect bioflocculation; two key parameters are the Solid Retention Time (SRT) and the substrate loading rate. The latter is related to the two basic designs in activated sludge …
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Assimilatory sulfur metabolism in marine microorganisms
… reductive assimilation of sulfate into cellular organic sulfur compounds was studied in aerobic marine bacteria, with emphasis on the relationship between sulfur metabolism and protein synthesis. The goal of the study was to develop and apply a method for the quantitative assay of total bacterial …
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Untersuchungen zur selektiven Anreicherung organischer Schwefelverbindungen aus wäßrigen Proben
Die Aufgabenstellung der vorliegenden Arbeit ergab sich aus der Notwendigkeit organische Schwefelverbindungen in stark belasteten wäßrigen Proben zu identifizieren, um das toxische Potential dieser Wässer abschätzen zu können. Bei der chromatographischen Trennung und Identifizierung der einzelnen …