Relevant bibliographies by topics / Source separated organics (SSO)

Academic literature on the topic 'Source separated organics (SSO)'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Source separated organics (SSO)"

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Lin, Long, Ehssan Hosseini Koupaie, Armineh Azizi, Amir Abbas Bazyar Lakeh, Bipro R. Dhar, Hisham Hafez, and Elsayed Elbeshbishy. "Comparison of Two Process Schemes Combining Hydrothermal Treatment and Acidogenic Fermentation of Source-Separated Organics." Molecules 24, no. 8 (April 13, 2019): 1466. http://dx.doi.org/10.3390/molecules24081466.

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This study compares the effects of pre- and post-hydrothermal treatment of source- separated organics (SSO) on solubilization of particulate organics and acidogenic fermentation for volatile fatty acids (VFAs) production. The overall COD solubilization and solids removal efficiencies from both schemes were comparable. However, the pre-hydrolysis of SSO followed by acidogenic fermentation resulted in a relatively higher VFA yield of 433 mg/g VSS, which was 18% higher than that of a process scheme with a post-hydrolysis of dewatered solids from the fermentation process. Regarding the composition of VFA, the dominance of acetate and butyrate was comparable in both process schemes, while propionate concentration considerably increased in the process with pre-hydrolysis of SSO. The microbial community results showed that the relative abundance of Firmicutes increased substantially in the fermentation of pretreated SSO, indicating that there might be different metabolic pathways for production of VFAs in fermentation process operated with pre-treated SSO. The possible reason might be that the abundance of soluble organic matters due to pre-hydrolysis might stimulate the growth of more kinetically efficient fermentative bacteria as indicated by the increase in Firmicutes percentage.
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Kakar, Farokh laqa, Ehssan Hosseini Koupaie, Hisham Hafez, and Elsayed Elbeshbishy. "Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Source-Separated Organics." Processes 7, no. 9 (September 1, 2019): 576. http://dx.doi.org/10.3390/pr7090576.

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The current study investigates the effect of hydrothermal pretreatment (HTP) on acidification of source-separated organics (SSO) in terms of volatile fatty acids (VFAs) production and solubilization. Temperature and retention time for HTP of SSO ranged from 150 to 240 °C and 5 to 30 min, respectively. The soluble substance after hydrothermal pretreatment initially increased, reaching its peak at 210 °C and then declined gradually. The highest overall chemical oxygen demand (COD) solubilization of 63% was observed at “210 °C-20 min” compared to 17% for raw SSO. The highest VFAs yield of 1536 mg VFAs/g VSS added was observed at “210 °C-20 min” compared to 768 mg VFAs/g VSS for raw SSO. Intensification of hydrothermal pretreatment temperature beyond 210 °C resulted in the mineralization of the organics and adversely affected the process.
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Seib, M. D., A. J. Booton, M. J. Scarborough, and D. R. Noguera. "Evaluation of acid-phase digestion as a pretreatment to enhance co-digestion of source separated organics and municipal sewage sludges." Water Science and Technology 80, no. 7 (October 1, 2019): 1257–65. http://dx.doi.org/10.2166/wst.2019.374.

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Abstract This work assessed if acid-phase digestion could improve volatile solids (VS) destruction and methane yield when co-digesting municipal sewage sludges (primary and waste activated sludge) and source separated organics (SSO). The SSO was made up of food waste and the organic fraction of municipal solid waste. Two laboratory-scale acid-phase digesters and three laboratory-scale methane-phase digesters were employed in order to determine the impacts of SSO co-digestion with municipal sludges both with and without acid-phase digestion as a pretreatment step. Reactors were operated at 35 °C using volatile solids loading rates of 34.2–44.1 g VS/LR-day for acid-phase digesters and 1.2–2.4 1 g VS/LR-day for methane-phase digesters. Solids retention times ranging from 1.2 to 1.5 day and 20.7 to 23.2 days were employed for acid-phase and methane-phase digesters, respectively. VS destruction ranged from 62% to 67%, with reactors receiving SSO achieving higher VS destruction. Results also show that reactors receiving SSO were able to handle organic loading increases of at least 39% without showing signs of overloading. Microbial community analysis revealed that SSO had a noticeable impact on acid-phase digestion with Megasphaera emerging as the most abundant genus.
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Urbain, J. Y., A. Smale, and B. Stinson. "Experiences with Source-Separated Organics Processing and Anaerobic Digestion at the City of Toronto Disco Road SSO Facility." Proceedings of the Water Environment Federation 2017, no. 12 (January 1, 2017): 1893–906. http://dx.doi.org/10.2175/193864717822152220.

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Leverenz, Harold, Russel Adams, Jessica Hazard, and George Tchobanoglous. "Continuous Thermal Stripping Process for Ammonium Removal from Digestate and Centrate." Sustainability 13, no. 4 (February 18, 2021): 2185. http://dx.doi.org/10.3390/su13042185.

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The state of California has passed legislation to divert organic materials from landfills to reduce the emission of methane to the atmosphere. A large amount of this source separated organic (SSO) material is expected to be used as a feedstock for anaerobic digestion processes. Based on a review of properties for likely SSO feedstocks, it is clear that while SSO are high in volatile solids, they are also concentrated sources of nutrients (principally, ammonium). When SSO feedstocks are digested, these nutrients are released into the digestate, where ammonium can cause problems both within the digester and in downstream treatment processes. The focus of this paper is on the performance of two pilot studies designed to remove ammonia from a digester effluent. The process used in the study is a thermal stripping column with tray configuration, operating under a vacuum. In the first study, food waste digestate was treated as a slurry in the stripping column with and without NaOH addition. At process temperatures near 90 °C, the performance with and without caustic was similar. In the second study, centrate from a co-digestion facility, that blends food processing waste with wastewater process solids, was treated in the same thermal stripping column under the same conditions and without chemical addition. The results from both studies, which can be described using the same performance curves, are presented and discussed in this paper.
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Fung, Leonard, Pedro E. Urriola, Lawrence Baker, and Gerald C. Shurson. "Estimated energy and nutrient composition of different sources of food waste and their potential for use in sustainable swine feeding programs." Translational Animal Science 3, no. 1 (September 7, 2018): 359–68. http://dx.doi.org/10.1093/tas/txy099.

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Abstract About 40% of the total food produced in the United States is wasted throughout the supply chain. The objective of this study was to determine the energy and nutrient content and variability of food waste sources generated at different stages within the food supply chain in the Minneapolis–St. Paul, MN, metropolitan area, and their potential for use in swine diets. A total of four waste sources were selected: supermarket (SM; retail to consumer), university residential dining hall (RH; consumer to postconsumer), a city waste transfer station (TS; postconsumer to municipal waste disposal), and household source-separated organic recycling program (SSO; postconsumer to municipal waste). Samples were collected (SM: n = 22; RH: n = 60; TS: n = 27; SSO: n =12) and analyzed for GE, proximate analyses, minerals, amino acids, and fatty acid concentrations along with lipid peroxidation indicators including peroxide value (PV) and thiobarbituric reactive substances (TBARS). Data were analyzed using a general linear model that included food waste source as the main factor, and least squared means with adjustment were used for multiple comparisons. Samples of SM food waste contained the greatest (P < 0.05) concentration of GE (5,909 kcal/kg) compared with RH, TS, and SSO sources. Calculated NE of SM (3,740 kcal/kg) was also the greatest compared with the three other food waste sources. Food waste from SM, RH, and SSO, but not TS, had greater (P < 0.05) calculated NE than published values for corn and soybean meal. Concentrations of Lys (1.82%), Met (0.53%), Thr (1.07%), and Trp (0.27) content were greater in SM than in RH, TS, and SSO, but these concentrations were less than published values for soybean meal. There were no differences (P > 0.05) in the phosphorus content of samples among food waste sources (0.30% to 0.64%). PV and TBARS were greatest (P < 0.05) in the SSO samples (PV = 82.4 meq/kg oil; TBARS = 2.44 mg malondialdehyde (MDA) eq/g oil) compared with the other three food waste sources. Although the concentrations of nutrients and calculated energy values of the food waste sources were moderately high compared with corn and soybean meal, their composition was more variable (i.e., greater SD of means). Food waste generated upstream (SM) in the food supply chain appears to have greater nutritional value than postconsumer food waste (RH, TS, and SSO), but all sources appear suitable for use in commercial swine diets provided that ME, NE, and nutrient digestibility values are well characterized.
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Razavi, A. S., E. Hosseini Koupaie, A. Azizi, H. Hafez, and E. Elbeshbishy. "Hydrothermal pretreatment of source separated organics for enhanced solubilization and biomethane recovery." Bioresource Technology 274 (February 2019): 502–11. http://dx.doi.org/10.1016/j.biortech.2018.12.024.

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Whitlock, Drury D., David W. Green, Leswin Dcunha, Jamie Allen, Mathew Krupp, and Phil Bobel. "Palo Alto, Ca'S Integrated Source-Separated Organics Management Solution to Achieve Zero Waste Goals." Proceedings of the Water Environment Federation 2014, no. 2 (October 1, 2014): 1–13. http://dx.doi.org/10.2175/193864714816197168.

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Azizi, A., E. Hosseini Koupaie, H. Hafez, and E. Elbeshbishy. "Improving single- and two-stage anaerobic digestion of source separated organics by hydrothermal pretreatment." Biochemical Engineering Journal 148 (August 2019): 77–86. http://dx.doi.org/10.1016/j.bej.2019.05.001.

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Bazyar Lakeh, A. A., A. Azizi, E. Hosseini Koupaie, V. Bekmuradov, H. Hafez, and E. Elbeshbishy. "A comprehensive study for characteristics, acidogenic fermentation, and anaerobic digestion of source separated organics." Journal of Cleaner Production 228 (August 2019): 73–85. http://dx.doi.org/10.1016/j.jclepro.2019.04.223.

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Dissertations / Theses on the topic "Source separated organics (SSO)"

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MacIntyre, Stephen Eugene. "Aqueous Ammonia Treatment of Organic Material for Municipal Composting." Thesis, 2012. http://hdl.handle.net/10214/3989.

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Aqueous ammonia treatment of organic material to increase enzymatic digestibility is a growing area of research for animal fodder and biofuel production. The application of this treatment in the municipal composting process has not previously been investigated. Litterbags were used to investigate the effects of an aqueous ammonia treatment prior to composting on source-separated organic waste. The treatment consisted of soaking organic material in aqueous ammonia prior to introducing the material back into the composting process. Dry mass, ash content, ash-free dry mass, and water-solubility were measured. Three experiments were performed: one in the laboratory, one in an in-vessel system, and one in windrows. The aqueous ammonia treatment removed more dry mass compared to controls; however, the results indicate that the majority of the loss occurred during the soak. This treatment may be of interest for compost facilities if the leachate produced can be used in an economically beneficial way.
Ontario Centres of Excellence
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Books on the topic "Source separated organics (SSO)"

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Composting source separated organics. Emmaus, Pa: JG Press, 1994.

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Book chapters on the topic "Source separated organics (SSO)"

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Michel, Frederick C., Susan Drew, Larry J. Forney, and C. Adinarayana Reddy. "Characterization and Composting of Source-Separated Food Store Organics." In The Science of Composting, 1233–35. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1569-5_149.

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Leal, Lucía Hernández, Taina Tervahauta, and Grietje Zeeman. "Resource recovery from source separated domestic wastewater; energy, water, nutrients and organics." In Innovative Wastewater Treatment & Resource Recovery Technologies: Impacts on Energy, Economy and Environment, 61–75. International Water Association, 2017. http://dx.doi.org/10.2166/9781780407876_0061.

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Conference papers on the topic "Source separated organics (SSO)"

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LoRe, Anthony M., and Robert L. Hurdle. "Managing Food Waste With Anaerobic Digesters: Is This a Greener Technology Than Conventional WTE." In 2013 21st Annual North American Waste-to-Energy Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/nawtec21-2712.

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Recent attention in the North American market has focused on managing food waste biologically using anaerobic digestion (AD) technology, which produces a biogas that can be used to generate electricity and a digestate or residue that can be used as a fertilizer, or composted and used as a soil amendment. The increased focus on AD is driven by the desire to increase waste diversion rates and a perception that AD is a “greener” approach to managing food waste than landfilling or conventional waste-to-energy (WTE) technology. Policy makers in some cases have already concluded that AD of source separated organics is preferable to landfilling and WTE. While the environmental benefits of AD over landfilling are obvious, especially for landfill sites without active gas collection systems, the benefits are less clear when compared to conventional WTE technology since relatively little analysis has been performed to date. Two environmental considerations often associated with being a “green technology” are energy recovery potential and greenhouse gas generation. This paper examines the amount of energy that can be produced by treating food waste biologically using AD compared to treating the same material thermally using mass burn WTE, which is the most commonly used WTE technology. The impact on net greenhouse gas emissions, namely carbon dioxide generation, from each technology is also compared taking into account a variety of factors including differences in the percentage of the feedstock carbon converted to carbon dioxide, the amount of fossil fuel avoided as a result of power generation, and the amount of vehicle emissions associated with collection and transportation of source separated food waste. This paper also compares other important considerations such as capital and operating costs, residuals management, and odor control.
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