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Dissertations / Theses on the topic 'Anaerobic digester'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

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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2

Stephenson, Robert John. "A comparison of retained biomass anaerobic digester designs." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26740.

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The principles behind anaerobic digestion are fairly well understood, but the limits of application of each digester design are not known. Because there are significant differences in the properties of the many wastewaters requiring treatment optimal anaerobic digester performance requires the matching of feed characteristics to a digester design and mode of operation. No consensus has yet emerged on digester design, operating conditions or feed/digester match-ups. In this study, three bench scale retained biomass anaerobic digester designs were examined for their response to a sequence of va

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3

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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4

Holloway, Ryan W. "Forward osmosis for concentration of anaerobic digester centrate." abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1436020.

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5

Bouaziz, Alexandre N. (Alexandre Nathanel). "Design of an anaerobic digester in Quebec, Canada." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90008.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 81-84).<br>.In response to the future Quebec, Canada regulations prohibiting landfilling of organic matter by 2020, EBI, a waste management company located near Montreal is considering constructing an anaerobic digester. This thesis focuses on designing a scalable prototype based on the waste types available from the existing facilities of the company and the Montreal area. Based on an extended li

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6

Jeyanayagam, Samuel S. "Engineering analysis of a Chinese-type anaerobic digester." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/49800.

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7

Davis, Owen S. "Heat transfer through anaerobic digester concrete tank walls." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29909.

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This dissertation is a study of the heat transfer through concrete walls in anaerobic digester facilities. In the biogas industry, the term “heat loss” is synonymous with heat transfer. The dissertation identifies the reasons why heat is critical in the operations of these facilities. Concrete has traditionally been a material used for the retention of liquid-based products and additionally provides good thermal insulating properties. It combines the benefits of being relatively cost effective for the construction of large tanks and requiring low maintenance during the operational life span. T

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8

Lehtinen, Silja. "Building a Small Scale Anaerobic Digester in Quelimane." Thesis, KTH, Industriell ekologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214458.

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Anaerobic digestion is a process where biogas is generated from organic substance in the absence of oxygen. The most common application of the anaerobic digestion technology in developing countries is small-scale household digesters producing biogas for cooking purposes. These systems are usually fed with cattle dung or organic household waste. The typical small-scale digester models are fixed-dome digester, floating-drum digester and rubber-balloon digester. Biogas systems contribute to self-sustainability of energy production, improve waste management and mitigate deforestation and health pr

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9

Conklin, Anne. "Acetoclastic methanogenesis : a key to anaerobic digester stability /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/10131.

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10

Monson, Kevin D. "The effect of various control actions on anaerobic digester performance." Thesis, University of South Wales, 2004. https://pure.southwales.ac.uk/en/studentthesis/the-effect-of-various-control-actions-on-anaerobic-digester-performance(fe5cc949-4123-4827-a530-8f0a7ec5848e).html.

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The sugar industry processes sugar cane and sugar beet to manufacture edible sugar. A high rate anaerobic system followed by an activated sludge process to 'polish' the effluent is presently the best available technology not entailing excessive costs for the treatment of wastewater from sugar processing factories. Upflow anaerobic sludge blanket (UASB) reactor systems are the most commonly implemented, with the higher loaded expanded granular sludge bed (EGSB) type systems gradually replacing at least some of the UASB applications. This higher loading carries with it a greater risk of process

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11

Wahal, Shantanu. "Nutrient Utilization from Anaerobic Digester Effluent Through Algae Cultivation." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/671.

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Nutrients present in digested animal waste can be utilized for algae cultivation under suitable conditions. Algal growth, however, depends on the chemical forms and speciation of these nutrients. In this study a chemical equilibrium model was first used to describe nutrient speciation and predict conditions that enhance the solubility of nutrients in anaerobic digester effluent. Dilution with water and separation of large particulates greatly improved nutrient availability and light penetration - conditions favorable for algal cultivation. Algae growth was tested using three strains - Scenede

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12

Castano, Juan Mauricio. "Anaerobic Digestion of Low Rate Digesters in Temperate Climates." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345220853.

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13

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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14

Dustin, Jacob Shaun. "Fundamentals of Operation of the Induced Bed Reactor (IBR) Anaerobic Digester." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/554.

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The Induced Bed Reactor (IBR) was developed at Utah State University to apply high-rate anaerobic digestion techniques to high solids content substrates. This technology has been successfully implemented at full-scale multiple installations in the United States and Canada as a waste treatment and energy production technology, but the physical processes necessary to further optimize the system were not well understood. Bench scale IBRs were operated as anaerobic digesters at 35°, 45°, and 55° C under three organic loading rates and three corresponding hydraulic retention times. Reactor perfo

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15

Nguyen, Vo Chau Ngan, Trung Hieu Phan, and Hoang Nam Vo. "Review on the most popular anaerobic digester models in the Mekong Delta." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-88455.

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In Vietnam, the research and application of biogas technology were given a considerable attention in past 30 years. There is several biogas plant models apply in the suburban and rural areas where most people’s life is based on animal husbandry. Each biogas plant model own strong points or weakness that adapt to detail circumstances. The biogas plants play a key role within the VACB farming system especially in the Mekong Delta where produce more than 50% of yearly national agriculture production. This paper gives a comprehensive overview on the popular biogas models in the Mekong Delta throug

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16

Jackson, Randy Scott Jr. "Economic implications of anaerobic digesters on dairy farms in Texas." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5844.

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Historically, air and water have been considered common property resources and, therefore, over utilized as waste receptors. Dairy waste is a leading environmental concern in the North Bosque River watershed in Texas. Changing societal attitudes are forcing dairies and policymakers to balance environmental concerns with farm profitability. Dairies are entering a realm filled with technologies to combat waste concerns. Anaerobic digester technology may play a role in helping dairies balance profit and the environment. Digesters capture methane from livestock waste and transform it into electric

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17

Smith, Ami Marie. "Uncovering microbial community composition, dynamics, and function in a thermophillic anaerobic digester." Thesis, University of Exeter, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496104.

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Anaerobic digestion is an effective method for reduction of organic waste related pollution while providing a sustainable means of energy production. Anaerobic digestion technologies have been in development for over a century, however much of the microbial diversity responsible for anaerobic digestion remains unknown. Digesters often suffer from Instability leading to inefficiency and failure of the natural microbial process. Greater knowledge of the micrcobial communities involved in anaerobic digestion is important for improving these engineered systems. Many microorganisms are as yet uncul

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18

Canovas-Diaz, Manuel. "Start up and modelling of an ecologically stratified thin film anaerobic digester." Thesis, Swansea University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254882.

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19

Barredo, Alcocer M. S. "The effect of pH on microbial interactions in the presence of propionic acid in anaerobic digestion." Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384069.

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20

Wong, Tak Ian. "Numerical flow simulations of an egg-shaped anaerobic sludge digester in wastewater treatment /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202005%20WONG.

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21

Freitas, Andrew Daniel Sanchez. "Method Development for the Synthesis of Anaerobic Digester Biogas with the Laboratory Environment." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/51388.

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Biogas, a gaseous mixture produced during decomposition of organic matter, is a renewable, easily generated and common byproduct of anaerobic digestion at wastewater treatment plants (WWTP), landfills and agricultural operations. There is growing interest in researching and utilizing the energy potential associated with its combustion. Siloxanes, a family of volatile organic silicon compounds, pose large impediments to biogas usage due to the formation and precipitation of silicon dioxide within combustion devices. Removal of siloxanes prior to combustion is therefore a growing endeavor. Resea

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22

Thomson, Sean Richard. "Methane Production by a Packed-Bed Anaerobic Digester Fed Dairy Barn Flush Water." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1329.

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Packed-bed digesters are an alternative to covered lagoon digesters for methane production and anaerobic treatment of dilute wastewaters such as dairy barn flush water. The physical media of packed-beds retain biofilms, often allowing increased treatment rates. Previous studies have evaluated several types of media for digestion of dilute wastewaters, but cost and media fouling have setback commercial development. A major operational cost has been effluent recirculation pumping. In the present effort, a novel approach to anaerobic digestion of flush dairy water was developed at pilot-scale:

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23

Nguyen, Vo Chau Ngan. "Small-scale anaerobic digesters in Vietnam - development and challenges." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-88525.

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Small-scale anaerobic digesters, known as biogas plants, were applied as an optimal livestock waste treatment as well as biogas supply for cooking and lighting demand for small-scale farmers in Vietnam. Although the biogas technology was introduced for nearly 30 years, the number of the constructed biogas plants is still limited. The current development of biogas plants is far below the real demand on livestock waste treatment that has increased significantly. This paper gives a comprehensive overview on the biogas plant development in Vietnam and attempts to address the challenges and discuss

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24

Waelkens, Barbara Elisabeth [Verfasser], and Ralf [Akademischer Betreuer] Takors. "Investigation of high load anaerobic digester design parameters : effect of reaction kinetics on digester design recommendations / Barbara Elisabeth Waelkens ; Betreuer: Ralf Takors." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/1215101929/34.

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25

Sun, Wei. "Mathematical Model for Predicting Trace Organic Compounds in Anaerobic Digesters." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378197057.

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26

Robinson, C. "The effect of sodium on the microbial population of a laboratory scale anaerobic digester." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378299.

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27

Ghosh, Shayok. "Optimization of phosphorus recovery from anaerobic digester supernatant through a struvite crystallization fluidized bed reactor." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/60128.

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Phosphorus is an essential element for all living organisms, but its supply is limited. On the other hand, phosphorus recovery from domestic wastewater can satisfy 15-20 % of current phosphate rock demand. Moreover, struvite scaling is a concern for wastewater engineers as it clogs various equipment. Recovering phosphorus as struvite pellets from wastewater can yield sustainable solution for both problems. Although several technologies have already been available to recover phosphorus from wastewater with reasonable P- recovery efficiency, these technologies possess a number of shortcomings su

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28

López, Muñoz Ignacio Francisco. "Optimal spatial arrangements of three ecosystems: microalgae pond, anaerobic digester and aerobic wastewater treatment plant." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/139852.

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Ingeniero Civil en Biotecnología<br>Ingeniero Civil Químico<br>Actualmente existen diversos problemas medioambientales, dos de ellos corresponden a la futura crisis energética, debido al agotamiento de los combustibles fósiles, y a la existencia de aguas residuales con altas concentraciones de nitrógeno y carbono. Un microorganismo llamado microalga podría ser una potencial solución a estos problemas, ya que éstos consumen nitrógeno y carbono para acumular lípidos en su medio intracelular, el cual posteriormente es procesado para producir biocombustibles. Sin embargo, la producción de energía

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29

Racz, Tiffany A. "Anaerobic Digestion of Wastewater-Grown Algae Biomass With Optimized Biogas Yields and Nutrient Solubilzation." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/2245.

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Whole-cell algae biomass grown on nutrient-rich wastewater can be anaerobically digested to produce renewable heat and power, and to solubilize nutrients to grow additional algae biomass in a biorefinery system. In this study, algae biomass was grown on clarified primary wastewater in 33-m2 ponds at a 4-day residence time with sedimentation harvesting of the biomass. Lab digesters were used to test biogas yields and nutrient solubilization from the anaerobic digestion of algal biomass with and without mixing and with sonication as a pretreatment. Additionally, algae were fed to unheated and un

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30

Randall, William O. "The Effects of a phosphate detergent ban on a biological nutrient removal plant and anaerobic digester /." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03122009-040637/.

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31

McDougall, Forbes Russell. "Optimization and evaluation of the acidification stage of a two-phase anaerobic digester treating coffee wastewater." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318254.

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32

Bradáč, Antonín. "Návrh optimálního promíchávání velkokapacitních vyhnívacích nádrží." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318823.

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The aim of this diploma thesis is an optimal method of mixing of the digester with consideration to the uniform mixing of the whole volume, ensuring the quality process conditions for the anaerobic fermentation and the maximum yield and quality of the produced biogas. First chapters describe the basic design parameters, general calculations and the principles for design of individual types of mixers, supplemented by practical examples of mixing large capacity tanks. The work introduces the problem of sludge formation at the sewage treatment plant with an emphasis on sludge treatment and the pr

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33

Tang, Jing. "Comparison of Dairy Manure Anaerobic Digestion Performance in Gas-lift and Bubble Column Digesters." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/46319.

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Anaerobic digestion is one of the most promising management options for dairy manure treatment. Manure wastewater from dairy farms has been used for methane production for decades. However, performance failure due to inadequate mixing is routine. In general, the mixng of anaerobic digester is achived throguh mechnical stirring, liquid circulation, and gas circulation, among which the gas circulation proves to be the most effcient way. In this work, we studied the liquid flow pattern of two differetn type of gas-circualtion based anaerobic digesters, with the aim to understand the effects o

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34

Voegel, Célestine. "Impact BIochimique des effluents agricoles et agroindustriels sur les structures/ouvrages en BEtOn dans la filière de valorisation par Méthanisation (ou codigestion anaérobie)." Thesis, Toulouse, INPT, 2017. http://www.theses.fr/2017INPT0044/document.

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La digestion anaérobie est une succession d’étapes de dégradation de la matière organique, par l’intermédiaire de microorganismes, opérée industriellement dans des digesteurs en béton. Des métabolites microbiens (acides gras volatils (AGV), NH4+, CO2) produits au cours du processus de digestion attaquent la matrice cimentaire du béton. Afin d’assurer un développement pérenne de la filière de méthanisation, il est donc nécessaire de comprendre d’abord tous ces phénomènes d’altération pour ensuite proposer des solutions durables pour les matériaux de construction des digesteurs. Les objectifs de

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35

Velho, Douglas Ferreira. "Digestão anaeróbia de resíduos de restaurantes: partida do reator e avaliação do biofertilizante." Universidade do Vale do Rio dos Sinos, 2016. http://www.repositorio.jesuita.org.br/handle/UNISINOS/5823.

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Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2016-10-18T12:56:20Z No. of bitstreams: 1 Douglas Ferreira Velho_.pdf: 2524832 bytes, checksum: dd171e639a007511b6cceb2258575af8 (MD5)<br>Made available in DSpace on 2016-10-18T12:56:21Z (GMT). No. of bitstreams: 1 Douglas Ferreira Velho_.pdf: 2524832 bytes, checksum: dd171e639a007511b6cceb2258575af8 (MD5) Previous issue date: 2016-07-29<br>Comitesinos - Comitê de Gerenciamento da Bacia Hidrográfica do Rio dos Sinos<br>FUNDEPE - Fundação Universitária para Desenvolvimento do Ensino e da Pesquisa<br>Petrobras - Petróleo

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36

Ahmadun, Fakhru'l-Razi. "The control of biomass concentrations in an anaerobic digester using porous membranes in conjunction with crossflow ultrafiltration." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318184.

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37

Agustini, Caroline B., Costa M. Da, M. Gutterres, and A. C. C. Pena. "Monitoring of biogas production from tannery solid wastes at-line in a laboratory-scale anaerobic digester - 163." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34307.

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Content: The understanding of how chemical, physical and environmental parameters work during anaerobic digestion production and waste treatment is an important step in improving the efficiency and process stability. This study provides the evolution of the biogas production and the efficiency of the treatment of the anaerobic digestion of solid wastes of tanneries at-line monitored in batch laboratory-scale bioreactors. Leather shavings and sludge from wastewater treatment plants substrates were considered in the study. The findings suggest that AD of the tannery solid waste can be separated

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38

Sekar, Samantha. "The Effects of Biochar and Anaerobic Digester Effluent on Soil Quality and Crop Growth in Karnataka, India." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343750717.

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39

Couch, Melanie. "Monitoring and Quantifying Tetracycline Resistance Genes in a Swine Waste Anaerobic Digester over a 100-Day Period." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/2449.

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Unregulated use of growth promoting antibiotics like Tetracyclines in agricultural feeds is becoming an increasing problem in antibiotic resistance. Undigested antibiotics leads to significant concentrations in livestock waste. These concentrations provide continuous selection pressure for the development of antibiotic resistance genes in the environment. Antibiotic resistance related deaths are projected to surpass cancer related deaths by 2050 making antibiotic resistance a pressing public health issue. The purpose of this study is to determine the abundance and persistence of tetracycline (

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40

Fukayama, Ellen Hatsumi [UNESP]. "Características quantitativas e qualitativas da cama de frango sob diferentes reutilizações: efeitos na produção de biogás e biofertilizante." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/104913.

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Made available in DSpace on 2014-06-11T19:33:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-07-18Bitstream added on 2014-06-13T18:45:22Z : No. of bitstreams: 1 fukayama_eh_dr_jabo.pdf: 525968 bytes, checksum: 2de8151a4f75d0ad1dc36da356f16775 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Objetivou-se avaliar o efeito da reutilização de cama de quatro lotes de criações de frangos de corte sobre a produção de cama de frango, a produção de biogás e a utilização do biofertilizante

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Greenwade, Ronald Keelan. "Sizing an Anaerobic Digester in a Rural Developing World Community: Does Household Fuel Demand Match Greenhouse Gas Production?" Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6090.

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Anaerobic digestion is the process by which organic carbon is converted into biogas in the form of carbon dioxide (CO2) and methane (CH4). Both of these products are greenhouse gases that contribute to global warming. Therefore if anaerobic reactors are improperly maintained and biogas is leaked or intentionally released into the atmosphere because biogas production exceeds household demand, these reactors may become generators of greenhouse gas emissions instead of sustainable energy producers. The objective of this research was to develop a framework to assess if the demand for biogas by a r

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42

Sheets, Johnathon P. "Cultivation of Nannochloropsis Salina in Diluted Anaerobic Digester Effluent under Simulated Seasonal Climatic Conditions and in Open Raceway Ponds." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1373452229.

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43

Pathak, Ankit Bidhan. "Anaerobic Co-Digestion of High Strength Food Waste with Municipal Sewage Sludge: An assessment of Digester Performance and gas production." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/48596.

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Anaerobic digestion is perhaps the simplest and most widely accepted method for solids and residuals management in the field of wastewater treatment. An emerging trend with regard to anaerobic digestion is the addition of additional organic or industrial wastes rich in degradable material (COD) that can lead to increased methane production and reduce the energy demand of the facility. The objective of this research was to evaluate the effect of adding significant quantities (>20% of feed volume) of High Strength Food Wastes (HSW) to digesters treating conventional municipal sludge by monitori

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44

Smith, Robert C. "Ecological Factors in Design of a Two-Sludge Nitrifying Activated Sludge System Incorporating Side-Stream Treatment of Anaerobic Digester Supernatant." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1291307830.

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45

Rahman, Khondokar Mizanur. "Determination of the potential energy contribution and green house gas mitigation of small and medium anaerobic digester systems in Bangladesh." Thesis, University of Brighton, 2011. https://research.brighton.ac.uk/en/studentTheses/efaddcb5-799a-4fb5-8bcd-d8a7736178db.

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This research is to determine the anaerobic digestion (AD) potential and green house gas mitigation of small and medium anaerobic digester systems in Bangladesh which could provide energy for the country's need. This was determined for two common feedstocks: cattle dung and poultry litter. A third potential feedstock is also investigated as a novel and significant new source: waste rice straw used in cattle markets. These three feedstocks were chosen because between them, they cover a large fraction of scenarios in the country where AD could be used. All of the data needed to determine the ene

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46

Fukayama, Ellen Hatsumi. "Características quantitativas e qualitativas da cama de frango sob diferentes reutilizações : efeitos na produção de biogás e biofertilizante /." Jaboticabal : [s.n.], 2008. http://hdl.handle.net/11449/104913.

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Orientador: Jorge de Lucas Junior<br>Banca: Roberto Alves de Oliveira<br>Banca: Júlio Cesar Pascale Palhares<br>Banca: Nilva Kazue Sakomura<br>Banca: Mônica Sarolli Silva de Mendonça Costa<br>Resumo: Objetivou-se avaliar o efeito da reutilização de cama de quatro lotes de criações de frangos de corte sobre a produção de cama de frango, a produção de biogás e a utilização do biofertilizante para adubação de milho. No capítulo sobre produção de cama foram avaliados quatro reutilizações de cama de frangos de corte criados em um galpão comercial dividido em 12 boxes pertencente à Empresa Rei Frang

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47

Williams, Yasheemah. "Treatment of poultry slaughterhouse wastewater using an expanded granular sludge bed anaerobic digester coupled with anoxic/aerobic hybrid side stream ultrafiltration membrane bioreactor." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2758.

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Thesis (Master of Engineering in Chemical Engineering)--Cape Peninsula University of Technology, 2017.<br>For more than a decade, poultry product consumption increased in developed and developing countries, with more than 470 new slaughterhouses being constructed in South Africa (SA). Customer demand for poultry products resulted in a rapidly growing poultry industry, with consequential increases in the quantity of organic solid and liquid waste being produced from the poultry slaughterhouses. Annually, the productivity and profitability within the livestock production sector has increased, an

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48

Asiedu, Kofi. "Evaluating Biological Treatment Systems: (i) Moving Bed Biofilm Reactor versus Biological Aerated Filtration, and (ii) Sulfide-Induced corrosion in Anaerobic Digester Gas Piping." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35156.

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The research presented in this report is in two sections. Section I involved the performance of a moving bed biofilm reactor (MBBR) versus a biological aerated filtration (BAF) and Section II involved study on causes of deposition in anaerobic digester gas piping. <p> The first section evaluated and compared the performance of a laboratory-scale MBBR and BAF for organic carbon and suspended solids removal. A kinetic study was also performed on the MBBR to evaluate the system performance. The purpose was to recommend one of the systems for the Force Provider project, which provides a containeri

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49

Elrgaiye, Ali Saad Ab. "Semi-quantitative Risk Assessment of an anaerobic digestion process." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Biogas is the most emerging industrial sector for energy production from renewable sources at National and European levels, and growing government funds favor the development of its market. From a process safety standpoint, Seveso Directive (Directive 2012/18/EU of the European Parliament and of the Council), but Biogas plants are complicated enough to require both their specific technology and an accurate risk assessment for design purposes. The number of accidents involving biogas plants has been too many to be ignored. Biogas plants are often operated wrongly, deficient in technological det

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Koksoy, Gozde Tugba. "Investigation Of Digester F/m Ratio As A Parameter To Affect Sludge Minimization And Gas Production Of Ultrasonically Treated Sludge." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610699/index.pdf.

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Ultrasonic sludge disintegration &ndash<br>the most commonly used mechanical pretreatment method- enables the occurrence of cavitation bubbles to extract intracellular material from the cell into aqueous phase. However, there is a lack of information on the volatile solids loading on the anaerobic digestion process performance of ultrasonically treated sludge. In this thesis work, the effect of sonication on disintegration of waste activated sludge (WAS) and an important parameter digester F/M (food to microorganism) ratio on ultrasonically treated WAS were investigated. First, preliminary s

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