Denitrification using thiosulfate and sulfide

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August undefined, 2024

WebUsing the developed model, we i) examined the interactions between sulfur-oxidizing bacteria and anammox bacteria at steady-state conditions with varying substrates to demonstrate the reliability of TDDA, and ii) evaluated the feasibility and operation of the TDDA process in terms of practical implementation. WebManagement of excessive aqueous sulfide is one of the most significant challenges of treating effluent after biological sulfate reduction for metal recovery from hydrometallurgical leachate. The main objective of this study was to characterize and verify the effectiveness of a sulfide-oxidizing bacterial (SOB) consortium isolated from post-mining wastes for …

Sulfur-driven autotrophic denitrification: diversity, …

Web@article{osti_6783491, title = {Denitrification using thiosulfate and sulfide}, author = {Bisogni, J J and Driscoll, C T}, abstractNote = {Reliable autotrophic denitrification for … WebJun 2, 2024 · Wastewaters generated during mining and processing of metal sulfide ores are often acidic (pH < 3) and can contain significant concentrations of nitrate, nitrite, and ammonium from nitrogen based explosives. In addition, wastewaters from sulfide ore treatment plants and tailings ponds typically contain large amounts of inorganic sulfur … nelson ledges state park map

Examining thiosulfate-driven autotrophic denitrification …

WebOct 1, 2014 · Anoxic respirometry was applied to characterize a sulfide-oxidizing nitrate-reducing (SO-NR) culture obtained from an anoxic biogas desulfurizing biotrickling filter … WebThiosulfate and sulfide were used as electron donors in laboratory scale denitrification systems. The stoichiometric ratio of the amount of sulfur electron source (sulfide or thiosulfate) needed to reduce a given amount of nitrate was determined. WebJun 24, 2003 · Its anaerobic growth with thiosulfate, sulfide, or polysulfide as electron donor and nitrate as electron acceptor resulted in the formation of nitrite as the major product. ... obligately chemolithoautotrophic sulfur-oxidizing haloalkaliphilic bacteria described here was able to drive complete denitrification using thiosulfate as electron … itp cks

Development of a kinetic model to evaluate thiosulfate-driven ...

Autotrophic denitrification of nitrate and nitrite using …

WebAbstract. Autotropic denitrification using enriched cultures of Thiobacillus denitrificans was investigated. Thiosulfate and sulfide were used as electron donors in laboratory scale … WebMar 18, 2024 · Several heterotrophic denitrifiers were reported previously to oxidize sulfide or thiosulfate, including H. kenyensis AIR-2 and Halomonas mongoliensis Z-7009. The former oxidized sulfide only with nitrate as … nelson lichtenstein state of the unionWebMar 18, 2024 · Sulfide and thiosulfate oxidation by six novel strains. (A) ... Sulfide tolerance tests were also performed using denitrification medium containing NaNO 3 as the sole nitrogen source and sodium citrate as the carbon source under aerobic conditions at 28°C, 150 rpm and pH 7.5. The sulfide concentration in the denitrification medium … nelson lewis inc marble falls tx

"WebFeb 11, 2016 · The steady-state profiles of residual sulfide, thiosulfate, ... on sulfide oxidation, denitrification and composition of the end products was determined by conducting additional batch experiments ... " - Denitrification using thiosulfate and sulfide

Denitrification using thiosulfate and sulfide

Sulfur-driven autotrophic denitrification: diversity, …

WebAnoxic thiosulfate (S2O32−) oxidation using autotrophic denitrification by a mixed culture of nitrate reducing, sulfur oxidizing bacteria (NR-SOB) was studied in a fluidized bed reactor (FBR). The long-term performance of the FBR was evaluated for 306 days at three nitrogen-to-sulfur (N/S) molar ratios (0.5, 0.3 and 0.1) and a hydraulic ... WebJan 1, 2024 · Thiosulfate is frequently used as an energy source and electron donor in autotrophic denitrification (AD) for removing nitrate from wastewater. However, transforming pathways of S2 O 32− in this process is unclear. Herein, the aim of this study is to explore possible transforming pathways of sulfur compounds in thiosulfate-based AD …

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WebApr 5, 2014 · Typical signs of sulfur-based denitrification using sulfide as an electron donor are decreasing NO 3 − accompanied by increasing SO 4 2− and NO 2 − (Postma …

WebIn this study, we used both aerobic and anaerobic continuous cultures to successfully couple inorganic sulfur compound (i.e. thiosulfate and thiocyanate) oxidation for the removal of nitrogenous compounds under neutral to acidic pH at … WebReliable autotrophic denitrification for removing nitrogen from wastewaters can be obtained with thiosulfate or sulfide, or both, as electron donors for enriched cultures of …

WebThe most used electron donors include hydrogen gas and reduced sulfur compounds, i.e. elemental sulfur, sulfide and thiosulfate. Recently, the denitrification potential of certain contaminants (such as sulfite, thiocyanate, arsenite and manganese) and inorganic wastes (such as biogenic elemental sulfur from biogas upgrading) has been revealed ... WebDec 24, 2024 · The oxidation of sulfide occurs in stages, with inorganic sulfur being stored either inside or outside of the cell until needed. This two step process occurs because sulfide is a better electron donor than inorganic sulfur or thiosulfate; this allows a greater number of protons to be translocated across the membrane.

WebJul 8, 2011 · Aerobic sulfide oxidation is the preferred method for removing sulfide in industrial wastewater, but if both nitrate and sulfide are present, such as is common in the food industry, autotrophic denitrification is …

Web刘艳芳,刘晓帅,尹思婕,高玮,张妙雨,韩严和,李再兴* 包埋硫铁生物填料的制备及自养反硝化性能. 刘艳芳1,刘晓帅1,尹思婕1,高玮2,张妙雨1,韩严和3,李再兴1* itp clubWeb李维维,张永显,袁忠玲,吴河龙,陈永志*硫自养短程反硝化探究及响应面法回收单质硫李维维1,2,张永显2,袁忠玲1,吴河龙2,陈永志1*(1 itp cloudWebMicrobial metabolism is the means by which a microbe obtains the energy and nutrients (e.g. carbon) it needs to live and reproduce.Microbes use many different types of metabolic strategies and species can often be differentiated from each other based on metabolic characteristics. The specific metabolic properties of a microbe are the major factors in … itp chronic diseaseWebJan 1, 2024 · During these denitrification processes, many sulfur compounds were used as energy sources and electron donors, such as thiosulfate (Eq. (1)), sulfide (Eq. (2)), and sulfur granules ... AADS is an essential part of a sulfur autotrophic denitrification using thiosulfate as electron donor. Analysis of the microorganisms in AADS could explore ... itp clay millWebApr 10, 2024 · Elucidating the microbial pathways that control the oxidation of sulfur compounds, such as thiosulfate (common in sulfide ore tailings 4), throughout mine water treatment systems will lead to ... itp civil worksWebJun 7, 2024 · 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 … itp closure technicianWebAmong them, bio-denitrification, as the most important pathway to remove nitrogen, has been extensively used to treat various wastewater (Coban et al., 2015, Zhuang et al., 2024). According to different types of electron donors, bio-denitrification can be divided into heterotrophic, autotrophic and mixotrophic denitrification. itp city