Log in

Relevant bibliographies by topics / Digested sludges / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Digested sludges.

Dissertations / Theses on the topic 'Digested sludges'

Author: Grafiati

Published: 15 June 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Digested sludges.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

2

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

3

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

4

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

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

Find full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

6

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

7

Ishaq, Farryad. "Trace metal supplementation in wastewater sludge digesters." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3896/.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

8

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

9

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

10

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Murambadoro, Daniel K. "The structural performance of egg-shaped sludge digesters." Master's thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/5019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Turkmen, Muserref. "Sulfur-containing odorants and the effects of high salinity in anaerobically digested biosolids." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 224 p, 2007. http://proquest.umi.com/pqdweb?did=1257807571&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Nash, Jeffrey William. "Characteristics and conditioning of anaerobically digested sludge from a biological phosphorus removal plant." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/44128.

Full text

Abstract:

A study of the anaerobically digested sludge form a full-scale biological phosphorus removal (BPR) plant (York River Wastewater Treatment Plant, York River, Va.) was conducted to determine the effects of BPR on sludge characteristics and conditioning requirements. Data collected from the plant indicated that both the total and soluble phosphorus (P) concentrations in the anaerobically digested sludge increased dramatically with the initiation of BPR. Accompanying this increase in total P was an increase in the total concentrations of magnesium and potassium content of the sludge, sup

APA, Harvard, Vancouver, ISO, and other styles

14

Williams, Tyson. "Competitive exclusion as a means to reduce Escherichia coli regrowth in digested sludge." Thesis, Cranfield University, 2014. http://dspace.lib.cranfield.ac.uk/handle/1826/9221.

Full text

Abstract:

In recent years, it has been reported that numbers of Escherichia coli increase significantly following centrifugation of sludge during the treatment process. E. coli is used as an indicator of the microbiological quality of sludge-derived products destined for agricultural recycling and of the efficacy of the sludge treatment processes. The re-growth phenomenon is of concern because of the potential for additional treatment requirement / higher disposal costs and loss of consumer confidence associated with a compliance failure. It is hypothesised that a competitive exclusion treatment could b

APA, Harvard, Vancouver, ISO, and other styles

15

CRISTINA, GIULIO. "The hidden potential of digested sewage sludge: a recycling approach to combat desertification." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2903484.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Olsson, Jesper. "Enhanced biogas production from municipal WWTPs : Co-digestion of microalgae with sewage sludge and thermophilic secondary digestion of mesophilic digested sludge." Licentiate thesis, Mälardalens högskola, Framtidens energi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-27911.

Full text

Abstract:

Biogas is produced when organic material is broken down in oxygen-free (anaerobic) conditions. This process is called anaerobic digestion and is used in most large and medium-sized municipal wastewater treatment plants in Sweden. In the wastewater treatment sewage sludge is obtained, from the mecanical-, biological and chemical treatment step, which contains decomposable organic material. The sludge is pumped into a digester, which is an airtight container. In the digester raw biogas, consisting of methane and carbon dioxide, is produced. The material that comes out of the digester is a nutrie

APA, Harvard, Vancouver, ISO, and other styles

19

Malhotra, Saimon. "Molecular biological characterisation of the functional microbial communities in anaerobic digesters." Thesis, University of Liverpool, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272792.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Galvagno, Giampiero. "Sidestream control of dissolved nutrients in anaerobically digested sludge centrate using anammox and chemical precipitation." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/59775.

Full text

Abstract:

The objective of this research was to assess specific side-stream processes for biodegradation and precipitation of dissolved nutrients in dewatering centrate and support the seamless integration of an anaerobic digester (AD) into a biological nutrient removal wastewater treatment plant (WWTP). Anaerobic digestion processes release reactive and non-reactive dissolved nutrients which are returned to the mainstream treatment process in the dewatering centrate. Conventional side-stream treatment processes are typically designed for removal of reactive nutrients (ie, nitrate/nitrite, ammonia and o

APA, Harvard, Vancouver, ISO, and other styles

21

Carliell-Marquet, Cynthia. "The effect of phosphorus enrichment on fractionation of metals and phosphorus in anaerobically digested sludge." Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/17074.

Full text

Abstract:

In designated nutrient-sensitive areas, phosphorus must be removed from sewage before it is discharged to the receiving water body. Phosphorus-rich sludge is generated, which is usually digested anaerobically prior to disposal. This research investigated the effect of phosphorus enrichment on metal and phosphorus fractionation in anaerobically digested sludge. The use of two complementary sequential chemical extraction procedures to measure phosphorus and metal fractionation, was a key focus of the research. The fractionation procedures were tested by sequentially extracting inorganic compound

APA, Harvard, Vancouver, ISO, and other styles

22

Gu, Xiangyang. "Improving heavy metal bioleaching efficiency through microbiological control of inhibitory substances in anaerobically digested sludge." HKBU Institutional Repository, 2003. http://repository.hkbu.edu.hk/etd_ra/504.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Balaguer-Barbosa, Maraida. "Recovery of Nutrients from Anaerobically Digested Enhanced Biological Phosphorus Removal (EBPR) Sludge through Struvite Precipitation." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7471.

Full text

Abstract:

Water resources in Florida have been severely degraded by eutrophic conditions, resulting toxic algae blooms, which negatively affect health and tourism. Eutrophication, or excessive amount of phosphorus (P) and nitrogen (N) in water, overstimulates the production of aquatic plants, depletes dissolved oxygen, and deteriorates the aquatic environment. However, phosphorus is a non-renewable resource essential for all living organisms. In fact, more than half of the total demand for P globally is to supply the food industry, which has concerningly accelerated the depletion rates of phosphate rese

APA, Harvard, Vancouver, ISO, and other styles

24

Ozkan, Yucel Umay G. "Co-treatment Of Hazardous Compounds In Anaerobic Sewage Sludge Digesters." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609952/index.pdf.

Full text

Abstract:

Xenobiotic compounds, which are exclusively man made, are produced in large quantities every year and released to the environment. Besides, anaerobic sludge digestion offers advantage in co-treatment of hazardous substances produced by the industry. The performance of the digesters can be monitored by modeling efforts. In this study, Anaerobic Digestion Model No.1 (ADM1) was calibrated, and validated for full-scale digester, lab-scale digester, and lab-scale digester seeded with totally different anaerobic biomass than that of full-scale digester. The model xenobiotic compound, a mono azo dye

APA, Harvard, Vancouver, ISO, and other styles

25

Roussel, Jimmy. "Metal behaviour in anaerobic sludge digesters supplemented with trace nutrients." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4369/.

Full text

Abstract:

Trace nutrients (metals) supplementation has been demonstrated to have a beneficial effect on the welfare of anaerobic digesters but there was a lack of information on the chemistry controlling their fate. The aim of this research was to determine the reactions governing the chemical behaviour of metals in anaerobically digested sludge and predict the fate of those metals when supplemented as MeEDTA. After the assessment of a wide range of analytical techniques, a suite of suitable analytical techniques1 were used to determine the metals behaviour in two case studies of metals supplementation:

APA, Harvard, Vancouver, ISO, and other styles

26

Huezo, Sanchez Luis. "Technical, economic, and carbon dioxide emission analyses of managing anaerobically digested sewage sludge through hydrothermal carbonization." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587121997256614.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

28

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Dogan, Ilgin. "Combination Of Alkaline Solubilization With Microwave Digestion As A Sludge Disintegration Method: Effect On Gas Production And Quantity And Dewaterability Of Anaerobically Digested Sludge." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609685/index.pdf.

Full text

Abstract:

The significant increase in the sewage sludge production in treatment plants makes anaerobic digestion more important as a stabilization process. However hydrolysis is the rate-limiting step of anaerobic digestion because of the semirigid structure of the microbial cells. Pretreatment of waste activated sludge (WAS) leads to disruption of cell walls and release of extracellular and intracellular materials. Therefore biodegradability of sludge will be improved in terms of more biogas production and sludge minimization. Among the pretreatment methods, alkaline, thermal and thermochemical pretrea

APA, Harvard, Vancouver, ISO, and other styles

30

Chan, Lau Chi. "Bioleaching of heavy metals from anaerobically digested sewage sludge using isolated indigenous iron- and sulphur-oxidizing bacteria." HKBU Institutional Repository, 2001. http://repository.hkbu.edu.hk/etd_ra/279.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Širůček, Vojtěch. "Experimentální sušárna čistírenských kalů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231024.

Full text

Abstract:

The master’s thesis is focused on the issue of solar drying of sewage sludge. The sludge management of wastewater treatment plants is described in the first part of this thesis. This theoretical part also deals with description of drying and dryers used for sludge treatment. The second part of the thesis is focused on the experimental solar drying of sewage sludge and the evaluation of the results.

APA, Harvard, Vancouver, ISO, and other styles

32

Demitry, Morris Elya. "Anaerobic Digestion Process Stability and the Extension of the ADM1 for Municipal Sludge Co-Digested with Bakery Waste." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4945.

Full text

Abstract:

Uncertainty about anaerobic digestion process stability is the main issue preventing more widespread use of the process as a source of energy recovery in wastewater treatment facilities. The overall objective of this research was to study the feasibility of enhancing biogas production inside wastewater facilities using co-digestion of municipal sludge with bakery waste. Another objective was to improve the stability index and a mathematical model that can be useful tools to predict the process stability of municipal sludge digestion alone, and when it is mixed with bakery waste, as a substrate

APA, Harvard, Vancouver, ISO, and other styles

33

Jiang, Junli. "Use of Manganese Compounds and Microbial Fuel Cells in Wastewater Treatment." Thesis, KTH, VA-teknik, Vatten, Avlopp och Avfall, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-96295.

Full text

Abstract:

Manganese compounds have a high potential for treating wastewater, both for utilizing its oxidation, flocculation ability and catalyst ability in anaerobic nitrification. The promising use of manganese compounds (such as permanganate and manganese dioxide) is regarded as an effective method of treating organic compounds in wastewater from municipal and industrial wastewater. Now it is newly realized possibilities to combine manganese compounds with Microbial Fuel Cell technology. Aiming at reusing the biomass in anaerobic digested sludge for degrading organic pollutants and simultaneously reco

APA, Harvard, Vancouver, ISO, and other styles

34

Ek, Anders. "Ultrasonic treatment of sewage sludge in order to increase biogas yields." Thesis, Linköping University, Department of Water and Environmental Studies, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-4581.

Full text

Abstract:

<p>Biogas, a mixture of methane and carbon dioxide, is produced in the anaerobic digestion of sewage sludge. After anaerobic digestion, the digested sludge is often allowed to degas for one or two days. This gas is seldom utilised, but if the degassing could be accelerated, utilisation would be easier. Ultrasound can be used as a pretreatment method for waste activated sludge. It has a disintegrating effect on the sludge and causes lysis of bacteria in the sludge. It also speeds up the hydrolysis; the limiting step of anaerobic digestion of waste activated sludge. Ultrasound can be used to deg

APA, Harvard, Vancouver, ISO, and other styles

35

Madikizela, Phindile. "The applicability of anaerobically digested pasteurized pit latrine faecal sludge as a fertilizer to grow Radish and Garden cress." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/59235.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Wennman, Pär. "Decomposition and nitrogen transformations in digested sewage sludge applied to mine tailings-effects of temperature, soil moisture, pH and plants /." Uppsala : Dept. of Soil Sciences, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/9157666288.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Naidoo, Pranava. "Stresses in egg-shaped sludge digesters in the form of ellipsoidal shells of revolution." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/30871.

Full text

Abstract:

Anaerobic sludge digesters of the squat cylindrical shape have inherent flaws which drive up maintenance costs, limits its ability to maintain optimum environmental conditions and is not shaped for efficient mixing. The egg-shaped sludge digester is an effective solution to these flaws. However, the analysis of these structures are complex and design guides are not readily available to designers of anaerobic sludge digesters. In previous studies, various shells of revolution were considered as egg-shaped sludge digester geometries. In terms of stress behaviour, these studies found the geometri

APA, Harvard, Vancouver, ISO, and other styles

38

Sen, Dipankar. "Kinetics of the release and precipitation of phosphorus in anaerobic digesters sequencing biological phosphorus removal systems." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/91075.

Full text

Abstract:

The extent of release and precipitation of phosphorus stored in the poly-phosphate granules of microorganisms present in anaerobic digesters sequencing a biological phosphorus removal (BPR) activated sludge system was examined. The research was conducted at the York River Wastewaster Treatment plant which was converted from a conventional system to a A/O process for biological phosphorus removal. The primary and secondary anaerobic digesters each had a solids retention time of approximately 120 days. The results indicated that at least 60 percent of the phosphorus in the poly-phosphate granu

APA, Harvard, Vancouver, ISO, and other styles

39

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

40

Isik, Ferit. "Applicability of ultrasound conditioning of waste activated sludge to reduce foaming potential in the anaerobic digesters." [Ames, Iowa : Iowa State University], 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

41

Wang, Han. "Ammonium Removal and Electricity Generation by Using Microbial Desalination Cells." Thesis, KTH, VA-teknik, Vatten, Avlopp och Avfall, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-96298.

Full text

Abstract:

Microbial fuel cell (MFC) has become one of the energy-sustainable technologies for wastewater treatment purpose in the recent years. It combines wastewater treatment and electricity generation together so as to achieve energy balance. By inoculating microorganism in the anode chamber and filling catholyte in the cathode chamber, and also with the help of a proton exchange membrane (PEM) between them, the MFC can transfer protons and produce power. Microbial desalination cells (MDC) are based on MFC’s structure and can fulfill desalination function by the addition of a middle chamber and anion

APA, Harvard, Vancouver, ISO, and other styles

42

Lamprecht, Corne. "UASB granulation enhancement by microbial inoculum selection and process induction." Thesis, Stellenbosch: University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1477.

Full text

Abstract:

Thesis (PhD (Food Science))--University of Stellenbosch, 2009.<br>In the absence of anaerobic granules, anaerobically digested sewage sludge is frequently used to seed industrial upflow anaerobic sludge blanket (UASB) reactors. Because of its flocculent nature, start-up with digested sludge instead of granular sludge proceeds much slower and presents various operational problems. Any manner in which the granulation of digested sludge can be enhanced would benefit UASB reactor start-up and application in developing countries such as South Africa. The main objective of this dissertation was to

APA, Harvard, Vancouver, ISO, and other styles

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

44

Dornack, Christina. "Biogas production from organic waste and biomass - fundamentals and current situation." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-99414.

Full text

Abstract:

The use of renewable waste for bioenergy production is in discussion because of the concurrence to the food or animal feed. The treatment of organic waste is necessary in order to keep clean the environment. The combination of those proposals, the waste utilization and the production of renewable energy can be combined with several techniques. In Vietnam the energy demand will increase rapidly in the next years, because a lot of people do not have access to electricity. The development of power sources is limited mainly to large central power plants using hydropower and traditional fossil fuel

APA, Harvard, Vancouver, ISO, and other styles

45

Connan, Romain. "Feasibility of anammox for the treatment of sewage sludge digester supernatant : from inoculum enrichment and cultivation to process configurations and emissions." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S103/document.

Full text

Abstract:

Ces travaux de thèse porte sur l'étude d'un procédé de traitement des eaux usées intitulé "anammox". C'est un procédé biologique reposant sur le métabolisme d'un groupe de bactéries du même nom permettant l'épuration de l'azote. Ces travaux développent une méthodologie pour leur identification et leur culture et aboutissent à la mise en application de bio-réacteur de traitement à l'échelle du laboratoire<br>This work focuses on the study of a wastewater treatment process entitled "anammox". It is a biological process based on the metabolism of a group of bacteria of the same name allowing the

APA, Harvard, Vancouver, ISO, and other styles

46

Mažrimas, Jonas. "Technologinių rodiklių įtaka Kauno nuotekų valyklos metantanko veikimo efektyvumui." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120530_124508-96080.

Full text

Abstract:

Darbo tikslas – nustatyti technologinių rodiklių įtaką Kauno nuotekų valyklos metantanko efektyvumui. Darbo uždaviniai: nustatyti išsiskyrusių biodujų debito priklausomybę nuo temperatūros, organinės medžiagos suirimo laipsnio, palyginti teorinį ir faktinį pagaminamų biodujų kiekį. Tyrimo objektai: Kauno miesto nuotekų valykloje dumblo pūdymui periodiškai naudojami du metantankai. Tyrimo metodika: buvo stebimi pagrindiniai rodikliai, įtakojantys biodujų išeigą metantanke: pirminio dumblo debitas, perteklinio dumblo debitas, temperatūra ir organinės medžiagos suskilimo laipsnis. Apskaičiuotas o

APA, Harvard, Vancouver, ISO, and other styles

47

Pinto, Nuno Filipe Pereira. "Contributo para a minimização do consumo energético numa ETAR: estudo do efeito de diferentes proporções de lamas primárias e ativadas no processo de digestão anaeróbia - o estudo de caso da ETAR do Seixal." Master's thesis, ISA/UL, 2015. http://hdl.handle.net/10400.5/9240.

Full text

Abstract:

Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia<br>Human population exponential growth and the pressures associated with human activities have caused drastic changes in the biosphere, leading to irreversible transformation in the life quality of our planet. Over the years, concerns about the quality and quantity of potable water and water and wastewater treatment methodologies have increased, making it the main focus of research. The main goal of this thesis is to study the minimization of the WWTP energy consumption, using different ratios of primary sludge and waste

APA, Harvard, Vancouver, ISO, and other styles

48

Gomez, Eddie F. "Effects of Organic Loading Rate on Reactor Performance and Archaeal Community Structure in Mesophilic Anaerobic Digesters Treating Municipal Sewage Sludge." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268065746.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Straub, Timothy Mark 1963. "Inactivation of bacteriophages MS-2 and PRD1 and poliovirus type 1 in Pima Clay Loam and Brazito Sandy Loam soils amended with anaerobically digested sewage sludge." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277884.

Full text

Abstract:

Inactivation of bacteriophages MS-2 and PRD1, and poliovirus type 1 were measured in Pima Clay Loam and Brazito Sandy Loam soils amended with anaerobically digested sewage sludge. Inactivation was determined at 15°C, 27°C, and 40°C with soils maintained at 30% moisture, and amended soils exposed to evaporation. No inactivation of PRD1 was observed within 30 days and 16 days at 15°C and 27°C respectively with little inactivation after 7 days at 40°C. Inactivation of MS-2 and poliovirus was approximately 2 fold greater at 27°C compared to 16°C. At 40°C neither virus was recovered 24 hours after

APA, Harvard, Vancouver, ISO, and other styles

50

Starman, David. "Opportunities for nutrient recovery in post digestion sludge handling : analysis and feasibility study using municipal scale aerobic and anaerobic digesters." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!