Sulfur flows and biosolids processing: Using Material Flux Analysis (MFA) principles at wastewater treatment plants

Fisher, Ruth M.; Alvarez-Gaitan, Juan Pablo; Stuetz, Richard M.; Moore, Stephen

doi:10.1016/j.jenvman.2017.04.056

Cited by 19 publications

(24 citation statements)

References 21 publications

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“…It can be also observed that the biosolid cakes after fermentation process exhibit higher content of organosulfur compounds than the excess cake. Literature explains this phenomenon by the fact that protein amino acids (for instance methionine), responsible for the production of organosulfur compounds in anaerobic conditions, are relatively durable and they do not undergo degradation [27, 29]. …”

Section: Resultsmentioning

confidence: 99%

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Complementary use of GCxGC–TOF–MS and statistics for differentiation of variety in biosolid samples

et al. 2018

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Section: Resultsmentioning

confidence: 99%

“…The last group included in Table 3 is organosulfur compounds. Many papers on investigation of the biosolid cakes found these substances as key ones [ 25 , 27 , 28 ]. Performed statistical analysis revealed that methanethiol and ethanethiol could be the potential markers of particular types of the biosolid cakes.…”

Section: Resultsmentioning

confidence: 99%

Complementary use of GCxGC–TOF–MS and statistics for differentiation of variety in biosolid samples

et al. 2018

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“…Material flux analysis has been employed by Dewil, Baeyens, Roels, and Steene (2009) and Fisher, Alvarez-Gaitan, Stuetz, and Moore (2017) to characterize the flows of S through full-scale water resource recoveryfacilities. Both studies observed that the S content of solids increased through anaerobic digestion due to VS destruction and the presence of Fe further increased the S content due to the formation of precipitates.…”

Section: Research Articlementioning

confidence: 99%

“…Both studies observed that the S content of solids increased through anaerobic digestion due to VS destruction and the presence of Fe further increased the S content due to the formation of precipitates. Fisher et al () found that the fraction of the mass flow of S entering facilities which was present in the biogas as H 2 S varied from 0.4% to 21% across six WWTPs. Neither of these studies employed a material flux analysis to explicitly address the impact of Al and Fe on biogas quality.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the use of mainstream iron addition for phosphorous control on H₂S content of biogas from anaerobic digestion of sludges

Parker

Celmer‐Repin

Bicudo

et al. 2019

Water Environment Research

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A material flux analysis on sulfur (S), phosphorus (P), aluminum (Al), and iron (Fe) was conducted for two WWTPs (Galt and Kitchener) to evaluate the potential of coagulants that are employed for phosphorus control to reduce hydrogen sulfide (H2S) emissions in the biogas from anaerobic digestion. It was found that while the Galt WWTP receives higher concentrations of S in the raw wastewater than the Kitchener WWTP, this had only a modest impact on the speciation of S entering anaerobic digestion. At both plants, only 2%–4% of influent S entered the digesters. The presence of Fe in the sludge stream was found to cause S, that is released by volatile solid destruction and sulfate (SO42-SO42-) reduction, to become particulate‐bound. A dosage of 1.1 mg/L of Fe into the raw wastewater (11% of the Fe dosed for P control) was sufficient for sulfide (S2‐) control. Transitioning the Galt WWTP from Al to Fe dosing for P control had no significant impact on effluent P concentrations and resulted in a substantial reduction in the biogas H2S concentration. An additional secondary benefit was an increase in the solid content of the dewatered cake. Practitioner points Material flux analyses can be employed to gain insight into the fate of key elements contributing to biogas quality. The use of iron for phosphorous control can effectively control H2S in anaerobic biogas. Conversion from Al2(SO4)3 to FeSO4 dosing for P control resulted in increased solid content of centrifuged biosolids.

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“…It was elaborated to support MFA in waste management according to the Austrian standard ÖNORM S 2096 (MFA-application in waste management). STAN has been widely implemented to study material flows in waste management, but it has also been used in other areas of environmental sciences, for example, to study nutrients such as nitrogen and phosphorous in agriculture, urban systems, or wastewater [41][42][43] or to explore sulfur flows and biosolids [44].…”

Section: Information Processingmentioning

confidence: 99%

Potential Recovery Assessment of the Embodied Resources in Qatar’s Wastewater

Alsheyab

Kusch-Brandt

2018

Sustainability

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Due to the ever-growing demand for natural resources, wastewater is being considered an alternative source of water and potentially other resources. Using Qatar as an example, this study assesses the resources embodied in wastewater and paves the way to combine wastewater treatment with advanced resource recovery (water, energy, nitrogen, phosphorous, added value products) which can turn wastewater management from a major cost into a source of profit. In this sense, wastewater is no longer seen as a problem in need of a solution, rather it is part of the solution to challenges that societies are facing today. Based on estimated quantities of generated urban wastewater and its average composition, mass flow analysis is implemented to explore the maximum availability of major wastewater constituents (solids, organic compounds, nutrients, chloride, alkalinity, sulfide). An assessment analysis reveals that, in Qatar, more than 290,000 metric tons total solids, 77,000 metric tons organic compounds, 6000 metric tons nitrogen, 81,000 metric tons chloride, 2800 metric tons sulfide, and 880 metric tons of phosphorus are embedded in about 176 million m3 of urban wastewater annually. One promising valorization strategy is the implementation of anaerobic digestion with biogas production, and the organic materials contained in Qatar’s wastewater corresponds to more than 27 million m3 of methane (equivalent to an energy content of more than 270 GWh) per year. The results further suggest that the recovery of nitrogen, phosphorus, and sulfide should be given priority.

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Sulfur flows and biosolids processing: Using Material Flux Analysis (MFA) principles at wastewater treatment plants

Cited by 19 publications

References 21 publications

Complementary use of GCxGC–TOF–MS and statistics for differentiation of variety in biosolid samples

Complementary use of GCxGC–TOF–MS and statistics for differentiation of variety in biosolid samples

Assessment of the use of mainstream iron addition for phosphorous control on H₂S content of biogas from anaerobic digestion of sludges

Potential Recovery Assessment of the Embodied Resources in Qatar’s Wastewater

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Sulfur flows and biosolids processing: Using Material Flux Analysis (MFA) principles at wastewater treatment plants

Cited by 19 publications

References 21 publications

Complementary use of GCxGC–TOF–MS and statistics for differentiation of variety in biosolid samples

Complementary use of GCxGC–TOF–MS and statistics for differentiation of variety in biosolid samples

Assessment of the use of mainstream iron addition for phosphorous control on H2S content of biogas from anaerobic digestion of sludges

Potential Recovery Assessment of the Embodied Resources in Qatar’s Wastewater

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Product

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Assessment of the use of mainstream iron addition for phosphorous control on H₂S content of biogas from anaerobic digestion of sludges