Relevant bibliographies by topics / Digested sludges

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Digested sludges'

Author: Grafiati
Published: 15 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Digested sludges"

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Hardegen, Justus, Patrick Braeutigam, Christian Abendroth, and Thomas Wichard. "Bisphenol A: Quantification in Complex Matrices and Removal by Anaerobic Sludges." Pollutants 1, no. 4 (2021): 194–206. http://dx.doi.org/10.3390/pollutants1040016.

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The endocrine disruptor bisphenol A (BPA) is one of the most commonly found micropollutants in the environment. However, the biodegradation of BPA under anaerobic (methanogenic) conditions is still an understudied process in wastewater treatment systems. The current study thus addresses the need for a simple and user-friendly analytical method for the rapid and accurate quantification of BPA in complex matrices such as digested and co-digester sludges. We established a microwave-assisted extraction method, followed by derivatization and gas chromatography–mass spectrometry to quantify BPA by c
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Martel, C. James, and Carl J. Diener. "Pilot-scale studies of sludge dewatering in a freezing bed." Canadian Journal of Civil Engineering 18, no. 4 (1991): 681–89. http://dx.doi.org/10.1139/l91-083.

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In 1986, a pilot-scale sludge freezing bed was constructed at the U.S. Army Cold Regions Research and Engineering Laboratory in Hanover, New Hampshire, U.S.A. This bed was operated for the next three years using both anaerobically and aerobically digested sludges. Results indicate that both sludges were effectively dewatered by this process. The maximum depth of sludge frozen during this study was 1.14 m. The final solid contents were 39.3% and 24.5% for anaerobically digested and aerobically digested sludges respectively. The quality of the meltwater from the bed was similar to raw wastewater
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Noyola, Adalberto, and Gloria Moreno. "Granule production from raw waste activated sludge." Water Science and Technology 30, no. 12 (1994): 339–46. http://dx.doi.org/10.2166/wst.1994.0633.

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Granulation is an important characteristic of sludges used in upflow anaerobic sludge blanket (UASB) reactors. As the UASB technology is rapidly spreading, there is a need of granular sludge for inoculation of new reactors, particularly in those countries where anaerobic technologies have been just recently accepted. Alternative sources of inocula are digested sludge, digested manure, septic tank sludges and pond sediments. Raw waste activated sludges have also been identified as a convenient material for reactor seeding, with previous treatment. In this work, anaerobic flocculant sludge obtai
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Cheng, H. F., S. Y. Chen, and J. G. Lin. "Hazardous organic matters in municipal sewage sludge in Taiwan." Water Science and Technology 44, no. 10 (2001): 65–70. http://dx.doi.org/10.2166/wst.2001.0582.

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Application of municipal sewage sludge to agricultural land has attracted significant attention in recent years because it conserves abundant nutrients and hydrocarbons that can be used as a soil amendment. The presence of hazardous organic matters (HOMs) in sewage sludge limits the feasibility of reuse of sewage sludge. The purpose of this study was to investigate the types and the concentrations of HOMs in municipal sewage sludge in Taiwan. An efficient SFE/GC/MS method was used to determine HOMs in sludge samples. The results indicated that di-(2-ethylhexyl) phthalate (DEHP) was persistentl
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Bux, F., B. Atkinson, and H. C. Kasan. "Zinc biosorption by waste activated and digested sludges." Water Science and Technology 39, no. 10-11 (1999): 127–30. http://dx.doi.org/10.2166/wst.1999.0640.

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Biological matter is known for its ability to biosorb solubilised heavy metal ions to its surface. Experiments were therefore conducted to assess the biosorptive capacity of two waste products of the wastewater treatment industry ie., waste activated and waste digested sludge. Surface charge of each was determined in order to relate electronegativity with biosorptive potential. Activated sludge was found to be more effective than digested sludge for removal of zinc from a metal plating effluent, viz., 5.9 mg Zn/(g sludge)−1 as opposed to 4.0 mg/g, respectively, as well as producing a higher ne
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Shang, Y., B. R. Johnson, and R. Sieger. "Application of the IWA Anaerobic Digestion Model (ADM1) for simulating full-scale anaerobic sewage sludge digestion." Water Science and Technology 52, no. 1-2 (2005): 487–92. http://dx.doi.org/10.2166/wst.2005.0557.

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A steady-state implementation of the IWA Anaerobic Digestion Model No. 1 (ADM1) has been applied to the anaerobic digesters in two wastewater treatment plants. The two plants have a wastewater treatment capacity of 76,000 and 820,000 m3/day, respectively, with approximately 12 and 205 dry metric tons sludge fed to digesters per day. The main purpose of this study is to compare the ADM1 model results with full-scale anaerobic digestion performance. For both plants, the prediction of the steady-state ADM1 implementation using the suggested physico-chemical and biochemical parameter values was ab
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Watanabe, Haruki, Tomokazu Kitamura, Shuichi Ochi, and Masaaki Ozaki. "Inactivation of pathogenic bacteria under mesophilic and thermophilic conditions." Water Science and Technology 36, no. 6-7 (1997): 25–32. http://dx.doi.org/10.2166/wst.1997.0571.

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This paper concerns field survey and laboratory experiment on the inactivation of pathogenic bacteria during sludge treatment processes with particular emphasis on anaerobic digestion process. We surveyed the inactivation of pathogenic bacteria processes by sampling various types of sludges from 17 wastewater treatment plants located in Japan and counting the number of bacteria in the sampled sludges. The bacteria we counted included fecal coliform groups, enterococcus and salmonella. The median number of fecal coliform groups in primary sludge was found to be 105 MPN/g, while the number of fe
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Scheminski, A., R. Krull, and D. C. Hempel. "Oxidative treatment of digested sewage sludge with ozone." Water Science and Technology 42, no. 9 (2000): 151–58. http://dx.doi.org/10.2166/wst.2000.0193.

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A process to improve anaerobic biodegradation of wastewater treatment sludges is investigated. Recalcitrant organic compounds which are contained in biologically stabilized digested sludge become biodegradable by partial oxidation using ozone and ozone in combination with hydrogen peroxide respectively. By oxidation with ozone, cell walls of microorganisms were destroyed and cytoplasm dissolved in sludge water. Water insoluble substances with high molecular weight were split into smaller, water soluble and biodegradable fragments. Sludge matrix composition regarding protein, lipid and polysacc
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Sarikaya, Hasan Z., and Salah Al-Marshoud. "Improvement of Dewatering Characteristics of Aerobically Digested Sludges." Water Science and Technology 28, no. 1 (1993): 47–51. http://dx.doi.org/10.2166/wst.1993.0013.

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The aim of this study was to evaluate the influence of both sludge characteristics and operational parameters on polymer selection and optimal dose requirements to improve the dewatering characteristics of aerobically digested sludges of a contact stabilization activated sludge plant in Jeddah, Saudi Arabia. In order to determine the dewatering characteristics of the sludge samples, capillary suction time (CST) and specific resistance to filtration (SRF) were measured. Cationic conditioning polymers were found more effective than the anionic types. The optimum polymer dose was equal to 4.2 kg
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Novak, J. T., N. Verma, and C. D. Muller. "The role of iron and aluminium in digestion and odor formation." Water Science and Technology 56, no. 9 (2007): 59–65. http://dx.doi.org/10.2166/wst.2007.705.

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The role of iron and aluminium in determining volatile solids reduction and odors from anaerobically digested, dewatered sludge cakes was evaluated from data collected from a variety of wastewater treatment plants. It was found that volatile solids reduction generally increased as the iron content of the sludge increased. It was also observed that odors increased with increasing iron. No correlation with aluminium or divalent cations was found. Based on these data it appears that the volatile solids reduction by anaerobic digestion is not useful for predicting the odors from anaerobically dige
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Dissertations / Theses on the topic "Digested sludges"

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Erkan, Muge. "Reactivation Potential Of Indicator Bacteria In Anerobically Digested Sludges After Dewatering Processes." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613656/index.pdf.

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Anaerobic digestion process which has long been known to successfully reduce the organic content of sludge is one of the most common alternatives to meet pathogen reduction requirements for particular classes of biosolids. However, it has recently been reported that, significantly higher densities of indicator bacteria have been measured in dewatered cake samples compared to samples collected right after anaerobic digestion. In addition, this increase in bacterial population has been commonly observed after centrifugation but not after belt filter dewatering. Even though several theories have
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Oliveira, Ivo Miguel Delgado Bandeira. "Evaluation of sewage digested sludge conditioning and dewatering through qualitative and quantitative laboratory methodologies towards process monitoring." Thesis, University of South Wales, 2017. https://pure.southwales.ac.uk/en/studentthesis/evaluation-of-sewage-digested-sludge-conditioning-and-dewatering-through-qualitative-and-quantitative-laboratory-methodologies-towards-process-monitoring(5a847c8f-77dc-47c8-86cf-20a64900fb42).html.

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This thesis reports on investigations that have contributed to an advancement in the applied and fundamental understanding on how the nature, related storage and processing of digested sewage sludge can influence polymer conditioning and dewatering. The work concentrated more specifically on evaluating the impact of thermal hydrolysis as a pre-treatment to anaerobic digestion (AD) of mainly secondary sewage sludges (Advanced AD, AAD plants) in comparison with conventional mesophilic AD (CMAD) on conditioning and dewatering of the digestate, as this knowledge seemed to be lacking for an AAD tec
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Charles, Antoine Henri Etienne. "Étude thermo-rhéologique de boues digérées : application à l’écoulement en conduite dans les procédés de méthanisation." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2023. http://www.theses.fr/2023MTLD0008.

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Le besoin en traitement des eaux usées par la société est assurée en usine d’épuration par des traitements menant à la production de boues. Afin d’anticiper l’augmentation de ce besoin à l’avenir, les filières de traitement de ces boues doivent atteindre une certaine efficacité, en termes de traitement et de valorisation des boues. Parmi ces filières, le procédé de méthanisation permet de réduire significativement le volume des boues générées et permet par la suite une valorisation agronomique et énergétique, sous forme de digestat, de biogaz, d’électricité ou de chaleur. Il est néanmoins limi
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Kidby, David W. "Biogas hydrogen as an indicator of digester instability in anaerobic sewage sludge digesters." Thesis, University of Essex, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280473.

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Geminiani, Andrea. "Sustainable valorization of digested sewage sludge into added-value products." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Before being discharged in a water body, municipal wastewater undergoes filtration, sedimentation, biological oxidation, and nutrient abatement in a wastewater treatment plant (WWTP); typically, the resulting sewage sludge is anaerobically digested for biomethane production. The sludge management practices currently involve landfill disposal and energy-intensive treatments, such as incineration or co-incineration, while agricultural soil applications and composting account for a minor amount. From a sustainability point of view, landfill disposal and incineration of sludge are not efficient in
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Campbell, Alison June. "The behaviour of pharmaceuticals in anaerobic digester sludge." Thesis, University of Portsmouth, 2013. https://researchportal.port.ac.uk/portal/en/theses/the-behaviour-of-pharmaceuticals-in-anaerobic-digester-sludge(995bec06-33fd-4c74-96a3-db4aba5a1c30).html.

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Pharmaceuticals are biologically active compounds that may be consumed in hundreds of tonnes per year, and which are excreted into municipal sewerage systems. Many pharmaceuticals persist during sewage treatment, and significant environmental risk has been linked to incomplete removal of pharmaceuticals. Evaluation of this risk is important and should be as representative as possible, taking into consideration all significant exposure routes and removal processes. Sludge treatment processes are of particular interest because they offer a final opportunity for the removal of persistent compound
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Ishaq, Farryad. "Trace metal supplementation in wastewater sludge digesters." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3896/.

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Multiple studies have shown the importance of transition metals for the microorganisms involved in anaerobic digestion. Deficiencies in metals can translate into suboptimal digester performances and therefore where present an opportunity to stimulate anaerobic digestion exists. Previous supplementation studies that have used EDTA complexed metals have shown conflicting results. Assays supplemented with cobalt-EDTA on its own consistently responded to a level equal to or higher than that from assays supplemented with a combination of metals. The results seemingly indicate that cobalt was the mo
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Qi, Yinan. "Effect of centrifugal dewatering on the regrowth of fecal coliforms and Salmonella in anaerobically digested biosolids." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 192 p, 2008. http://proquest.umi.com/pqdweb?did=1601522491&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Thesis (Ph.D.)--University of Delaware, 2008.<br>Principal faculty advisors: Steven K. Dentel, Dept. of Civil & Environmental Engineering; and Diane S. Herson, Dept. of Biological Sciences. Includes bibliographical references.
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Lau, Shiew Wei. "Conditioning and dewatering of anaerobically digested sludge from municipal wastewater treatment processes." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/1594.

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This thesis presented the dewatering performance improvement of anaerobically digested sludge with novel application and assessment of conditioning aids. The effectiveness of sludge conditioning was evaluated by batch experiments using a series of 250-mL jar test beakers. The optimal dosage was found at 15–20 g/kg chitosan with enhanced dewaterability and rheological behaviour. The dual-chemical conditioning results indicate a higher rate of water removal at the expense of dry solids content compared to single conditioning.
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Chiarella, Renato. "Laboratory study of H¦2S reduction in anaerobic digester sludge." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0001/MQ34346.pdf.

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Books on the topic "Digested sludges"

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Federation, Water Environment, ed. Sludge digest. Water Environment Federation, 1992.

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Authority, Massachusetts Water Resources. Boston Harbor Project: Sludge digesters. Massachusetts Water Resources Authority, 1993.

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Gerardi, Michael H. The microbiology of anaerobic digesters. John Wiley, 2003.

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Higgins, Matthew J. Evaluation of bacterial pathogen and indicator densities after dewatering of anaerobicall digested biosolids phase II and III. Water Environment Research Foundation, 2008.

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Rich, Kevin Kinnaird. Biological solubilization of metals from anaerobically digested sludge in a semicontinuous system. National Library of Canada, 1993.

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Mavi, Avtar S. Bacterial leaching of metals from anaerobically digested sludge disinfected with copper sulphate. National Library of Canada = Bibliothèque nationale du Canada, 1991.

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Agency, OECD Nuclear Energy. Anaerobic biodegradability of organic compounds in digested sludge: By measurement of gas production. Organisation for Economic Co-operation and Development, 2006.

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New York State Energy Research and Development Authority. and Dynatech Scientific Inc, eds. Methane from partially digested sewage sludge using a stream injection rapid thermal reactor: Final report. The Authority, 1989.

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Martin, John H. Reductions of enteric microorganisms during aerobic sludge digestion: Comparison of conventional and autoheated digesters. U.S. Environmental Protection Agency, Risk Reduction Engineering Laboratory, 1989.

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Gerardi, Michael H. Microbiology of Anaerobic Digesters. Wiley & Sons, Incorporated, John, 2007.

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Book chapters on the topic "Digested sludges"

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Towner, J. V., J. A. Campbell, and R. D. Davis. "Effect of Sample Storage on the Extraction of Metals from Raw, Activated and Digested Sludges." In Processing and Use of Organic Sludge and Liquid Agricultural Wastes. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4756-6_52.

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Gooch, Jan W. "Sludge Digester." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_14817.

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Arias, M. Cruz. "Immobilization of a Digested Anaerobic Sludge." In Environmental Biotechnology. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-1435-8_53.

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Koga, Daisuke. "Struvite Recovery from Digested Sewage Sludge." In Phosphorus Recovery and Recycling. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8031-9_17.

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Ashraf, R. J., Jonathan D. Nixon, and J. Brusey. "Multi-objective Optimisation of a Wastewater Anaerobic Digestion System." In Springer Proceedings in Energy. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30960-1_25.

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AbstractThis paper looks at multi-objective optimisation of a wastewater AD system where the model is demonstrated for a case study plant. Anaerobic Digestion Model No. 1 (ADM1) was used to predict biogas yields from the digester. Interviews, with plant owners, and plant data were used to identify the objective functions and decision variables. The decision variables were defined to be the substrate feeding rate for each of the digesters and the ratio of biogas sent between a combined heat and power (CHP) plant and a biogas upgrading unit (BUU). The objectives set were to maximise the overall
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Joyce, Alyssa, Mike Timmons, Simon Goddek, and Timea Pentz. "Bacterial Relationships in Aquaponics: New Research Directions." In Aquaponics Food Production Systems. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15943-6_6.

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AbstractThe growth rates and welfare of fish and the quality of plant production in aquaponics system rely on the composition and health of the system’s microbiota. The overall productivity depends on technical specifications for water quality and its movement amongst components of the system, including a wide range of parameters including factors such as pH and flow rates which ensure that microbial components can act effectively in nitrification and remineralization processes. In this chapter, we explore current research examining the role of microbial communities in three units of an aquapo
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Arsov, R. V. "Sizing of Wastewater Sludge Anaerobic Digesters." In Urban Water Management: Science Technology and Service Delivery. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0057-4_23.

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Obarska-Pempkowiak, Hanna, Magdalena Gajewska, Ewa Wojciechowska, and Janusz Pempkowiak. "Reject Water from Digested Sludge Centrifugation Treatment in HTW." In GeoPlanet: Earth and Planetary Sciences. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13794-0_7.

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Mort, N. R., H. T. Hofstede, and R. A. Gibbs. "Giardia Die Off in Anaerobically Digested Wastewater Sludge During Composting." In The Science of Composting. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1569-5_151.

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Wong, Daniel, and Harrie Hofstede. "Optimisation of Anaerobically Digested Primary Sludge as a Composting Substrate." In The Science of Composting. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1569-5_56.

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Conference papers on the topic "Digested sludges"

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Cheshire, Brian, Dave Walker, and Glenn Hauser. "“Something to Digest: Recent Findings on Coating Performance in Anaerobic Digesters”." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00613.

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Abstract An anaerobic digester is a reactor or a process vessel in which multiple chemical and/or biochemical reactions occur simultaneously. Most municipal treatment plants utilize anaerobic treatment, which is responsible for most of the waste stabilization that happens at these facilities. Protective coatings and linings have long been utilized within these key structures to offer barrier protection for both steel and concrete substrates exposed to this service environment. Over the past few years, there has been a growing trend where publicly owned wastewater treatment plants have started
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(Randy) Nixon, Robert A. "Upset Conditions in Anaerobic Distgers in Wastewater Treatment Plants Cause Degradation of Protective Linings." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18235.

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Abstract Both mesophilic and thermophilic anaerobic digesters are currently being utilized to treat sludge derived from more than typical municipal sewerage sources. Wastewater treatment plants are accepting septage and sludge from food waste and industrial contributors routinely today. Receiving these other sources of waste which are extremely high in volatile solids is a source of significant income for the utilities. However, high volatile solids loading into the digesters can cause out-of-balance biochemical conditions in the digesters. High volatile fatty acid to alkalinity ratios and low
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Harris, Albert J. "Corrosion Damage in Anaerobic Sludge Components, a Case Study." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89586.

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Abstract Corrosion damage caused by long-term moth-balling or inactivity of equipment can affect structural integrity. This type of damage in wastewater treatment plants can cause piping components, pressure vessel plates, and structural beams to fail; because of reduced cross sectional areas or perforation. In a corrosion survey of the Southerly Wastewater Treatment Plant (SWWTP) in Columbus, Ohio, parts of the sludge gas handling system were analyzed for potential rehabilitation. Those items examined included six anaerobic sludge digesters, sludge gas piping and associated valves, and a fort
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Rasmeni, Zelda Z., Daniel M. Madyira, Antony N. Matheri, Obafemi O. Olatunji, and Kehinde O. Olatunji. "Mechanical Pre-Treatment of Co-Digested Wastewater Sludge (WWS) and Brewery Spent Yeast (BSY) Under Anaerobic Condition." In 2024 International Conference on Electrical and Computer Engineering Researches (ICECER). IEEE, 2024. https://doi.org/10.1109/icecer62944.2024.10920381.

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Błaszczyk, Wiktoria, Karolina Fila, Monika Raczkiewicz, Tadeusz Paszko, Patryk Oleszczuk, and Anna Siatecka. "Efficient removal of potentially toxic elements from digested sewage sludges using protic ionic liquids." In 4th International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: ENVIRONMENT – PLANT – ANIMAL – PRODUCT 9 April 2025. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie, 2025. https://doi.org/10.24326/icdsupl4.e002.

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DAPKIENĖ, Midona, Laima ČESONIENĖ, and Tomas PILIPAUSKAS,. "COMPARISON OF OPERATION OF KAUNAS AND KLAIPĖDA WWTPS DIGESTERS." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.042.

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The article provides comparison of operation of digesters for 2014, installed in wastewater treatment plants (WWTP) of two Lithuanian cities Kaunas and Klaipėda. It was established that the temperature and decomposition degree of organic materials had impact on biogas discharge in digesters of both wastewater treatment plants. Increase of these technological parameters resulted in increase of biogas output. Actual output of biogas of Kaunas wastewater treatment plant digester was by 5.8 % less than theoretical output, in Klaipėda WWTP anaerobic reactor – by 4.2 %. After comparison of biogas di
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El Achkar, Jean H., Abrar Ben Husain, Nadeen Alotaibi, et al. "Could Petroleum Sludge be Used to Produce Biomethane as a Renewable Energy Source?" In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/210953-ms.

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Abstract During the exploration, production, and refining of crude oil, as well as the effluent treatment facilities of refineries, the petroleum sector produces a substantial quantity of sludge. This review offers in-depth insights into the methods used to treat and dispose of petroleum sludge today. It also explores the possibility of valorizing such waste while converting it to a sustainable energy source using anaerobic digestion technology. Aside from health concerns, the random disposal of untreated petroleum sludge causes land pollution, water pollution, and ecosystem devastation. Conse
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Komulainen, Tiina, Bilal Mukhtar, Truls Ødegaard, et al. "Modeling and control of WRRF biogas production." In 64th International Conference of Scandinavian Simulation Society, SIMS 2023 Västerås, Sweden, September 25-28, 2023. Linköping University Electronic Press, 2023. http://dx.doi.org/10.3384/ecp200027.

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Wastewater treatment sector uses about 1 percent of total energy consumption in European Union, hence development of energy-efficient digital technologies is an urgent challenge. The aim of this article is to develop energy-efficient control strategies for biogas production from sewage sludge at water resource recovery facilities (WRRF). The case study is developed in collaboration Veas WRRF, Norway. The Veas biogas plant is operated semi-continuously in mesophilic conditions. The process includes inlet sludge pumps, four anaerobic digesters, heat exchangers for sludge heating, pumps for sludg
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Cheng, Jun, Junhu Zhou, Binfei Xie, Lin Xie, Jianzhong Liu, and Kefa Cen. "Biohydrogen Production From Food Waste by Anaerobic Fermentation." In ASME 2005 Power Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pwr2005-50334.

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The biohydrogen production from food wastes by anaerobic fermentation of digested sludge is studied. It is found by gas chromatography analysis that the volumetric ratios of H2 to CO2 in the biogases derived from rice, potato, lean meat and fat are respectively 0.77, 0.82, 0.93 and 0.82. The yield of methane is quite little, because the methane-producing activity is restrained and the hydrogen-producing activity is simultaneously kept when the digested sludge is preheated in the boiling water. Ethanol (0.43%) is the highest volatile fatty acid in the fermentation solution derived from lean mea
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Koyama, Masamichi, and Hiroshi Fujiwara. "Development of a Dual-Fuel Gas Turbine Engine of Liquid and Low-Calorific Gas." In ASME 2005 Power Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pwr2005-50365.

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We developed a dual-fuel single can combustor for the Niigata Gas Turbine (NGT2BC), which was developed as a continuous-duty gas turbine capable of burning both kerosene and digester gas. The output of the NGT2BC is 920 kW for continuous use with digester gas and 1375 kW for emergency use with liquid fuel. Digester gas, obtained from sludge processing at sewage treatment plants, is a biomass energy resource whose use reduces CO2 emissions and take advantage of an otherwise wasted energy source. Design features for good combustion with digester gas include optimized the good matching of gas inj
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Reports on the topic "Digested sludges"

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Asvapathanagul, Pitiporn, Leanne Deocampo, and Nicholas Banuelos. Biological Hydrogen Gas Production from Food Waste as a Sustainable Fuel for Future Transportation. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2021.2141.

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In the global search for the right alternative energy sources for a more sustainable future, hydrogen production has stood out as a strong contender. Hydrogen gas (H2) is well-known as one of the cleanest and most sustainable energy sources, one that mainly yields only water vapor as a byproduct. Additionally, H2 generates triple the amount of energy compared to hydrocarbon fuels. H2 can be synthesized from several technologies, but currently only 1% of H2 production is generated from biomass. Biological H2 production generated from anaerobic digestion is a fraction of the 1%. This study aims
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2

Asvapathanagul, Pitiporn, Leanne Deocampo, and Nicholas Banuelos. Biological Hydrogen Gas Production from Food Waste as a Sustainable Fuel for Future Transportation. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2022.2141.

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Abstract:
In the global search for the right alternative energy sources for a more sustainable future, hydrogen production has stood out as a strong contender. Hydrogen gas (H2) is well-known as one of the cleanest and most sustainable energy sources, one that mainly yields only water vapor as a byproduct. Additionally, H2 generates triple the amount of energy compared to hydrocarbon fuels. H2 can be synthesized from several technologies, but currently only 1% of H2 production is generated from biomass. Biological H2 production generated from anaerobic digestion is a fraction of the 1%. This study aims
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3

Reduced gas pressure operation of sludge digesters: Expanded studies. Final report. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10186304.

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