Tesis sobre el tema "Ballast water treatment facilities"
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Pazouki, Kayvan. "Inferential measurement and control of ballast water treatment system". Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1433.
Texto completoBerntzen, Magnus. "Guidelines for selection of a ship ballast water treatment system". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11440.
Texto completoSamuelsson, Oscar. "Fault detection in water resource recovery facilities". Licentiate thesis, Uppsala universitet, Avdelningen för systemteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-329777.
Texto completoMoloney, Shane Richard. "The design, build and preliminary testing of a ballast water treatment plant prototype". Thesis, University of Newcastle Upon Tyne, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580318.
Texto completoAl, Hababi Hani H. M. H. "Development of decision support tool for advising on selecting ballast water treatment system". Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24978.
Texto completoEley, Mark John. "Manganese oxide deposits in water treatment facilities, North East Scotland". Thesis, Robert Gordon University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388813.
Texto completoArena, Courtney Campbell. "Electro-Ionization Technology as a Treatment for Ballast Water with a Review of Methods Used to Determine Treatment Effectiveness". NSUWorks, 2005. http://nsuworks.nova.edu/occ_stuetd/128.
Texto completoCarney, Katharine. "Marine bioinvasion prevention : understanding ballast water transportation conditions and the development of effective treatment systems". Thesis, University of Newcastle Upon Tyne, 2011. http://hdl.handle.net/10443/1246.
Texto completoSliwinski, Kristoffer. "A Machine Learning Approach to Predictively Determine Filter Clogging in a Ballast Water Treatment System". Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263931.
Texto completoSedan Ballast Water Management-konventionen introducerades har fartyg behövt använda barlastvattensystem för att behandla barlastvattnet i ett försök att hämma spridningen av bakterier och andra mikrober som kan vara farliga för främmande ecosystem. Ett sätt att förbehandla vattnet innan behandling är genom att låta det passera genom ett filter. När filtret samlar på sig partiklar börjar det att klogga och kan potentiellt klogga igen snabbt när koncentrationen av partiklar i vattnet är hög. Kloggning kan äventyra systemets säkerhet. Det här examensarbetet ämnar att undersöka om maskininlärning genom neurala nätvärk kan implementeras i systemet för att prediktivt bestämma filtrets kloggningsgrad genom att undersöka lämpligheten hos två populära nätverksstrukturer för tidsserieanalys. Problemet handlade initialt om att bedömma olika kloggningsgrader för filterelementet baserat på samplade sensordata från barlastvattensystemet. Datan kördes sedan för regressionsanalys genom två neurala nätverk, ett av typen LSTM och ett av typen CNN för att prediktivt bestämma paramterarna. LSTM-nätvärket uppskattade variabelvärden och kloggningsgrad för de kommande 5 sekundrarna medan CNN:et uppskattade variabelvärden och kloggningsgrad för de kommande 30 sekunderna. Den uppskattade datan verifierades sedan genom klassificering av ett LSTM nätverk och två CNN. LSTM nätverket för regression uppnådde ett r 2 -resultat på 0.981 och LSTM nätverket för klassificering uppnådde en klassificeringsgrad på 99.5%. CNN:et för regression uppn˚adde ett r 2 -resultat på 0.876 och CNN:et för klassificering uppnådde en klassificeringsgrad på 93.3%. Resultatet visar att ML kan användas för att identifiera olika kloggningsgrad men ytterligare forskning krävs för att bestämma om alla kloggningsstadier kan klassificeras.
McCluskey, D. K. "On the application of detached eddy simulation turbulence modelling to hydrocyclonic separators for shipboard ballast water treatment". Thesis, Coventry University, 2009. http://curve.coventry.ac.uk/open/items/cf872aaa-ff59-d20c-fbdb-75f55773e213/1.
Texto completoRiley, Scott. "Measuring Viability of the Red-Tide Dinoflagellate Lingulodinium polyedra Following Treatment with Ultraviolet (UV) Light". NSUWorks, 2014. http://nsuworks.nova.edu/occ_stuetd/4.
Texto completoMarco, Pontus. "Design & optimization of modular tanksystems for vehicle wash facilities". Thesis, Karlstads universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-79009.
Texto completoEinarsson, Thorhallur y Martin Carlstedt. "Barlastvattenkonventionen : Hur svenska tankrederier har hanterat konventionens krav". Thesis, Linnéuniversitetet, Sjöfartshögskolan (SJÖ), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-74461.
Texto completoAquatic invasive species have spread around the world in ships’ ballast water tanks with dire consequences. To regulate this spreading, the International Maritime Organization implemented the Ballast Water Management Convention which forces ships to, within a certain time frame, install approved ballast water treatment systems. The implimentation of the Convention has been complex and shipping companies have had to face challenges of choosing suitable treatment systems for their ships and trading areas. For this study, qualitative interviews were conducted with representatives from Swedish tanker shipping companies to examine how the Convention has affected them. On what grounds different treatment techniques were chosen was also examined, as well as if installed treatment systems have met expectations. Results from the study show that companies have suffered economical impacts, have had difficulties handling the implementation of the Convention as well as difficulties finding reliable treatment systems. Furthermore, one respondent referred to a report submitted by Saudi Arabia where extensive ballast water sampling had been conducted on ships calling their ports. The report showed that a considerable amount of ships with approved ballast water treatment systems did not meet the required levels of organisms in the treated ballast water. The interviews confirm the report’s description of the treatment systems’ fundamental flaws.
Bergseije, Victor. "Effects of Heat Transfer Fluid from District Heating Networks on Activated Sludge : A respirometric analysis using a dilution series to assess disruption of biological treatment processes in wastewater treatment facilities". Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34038.
Texto completoOdjadjare, Emmanuel Erufuare Onogwuwhenya. "Prevalence of listeria pathogens in effluents of some wastewater treatment facilities in the Eastern Cape province of South Africa". Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/246.
Texto completoKulati, Thanduxolo Cullinan. "Evaluation of physiochemical qualities and heavy metal levels of the final effluents of some wastewater treatment facilities in the Eastern Cape Province of South Africa". Thesis, University of Fort Hare, 2016. http://hdl.handle.net/10353/1547.
Texto completoMazwi, Sinazo Nomathamsanqa. "Evaluation of some wastewater treatment facilities in Chris Hani and Amathole district municipalities as potential sources of Escherichia coli in the environment". Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019804.
Texto completoDohnal, Radek. "Odkanalizování odpadních vod z průmyslového areálu ve městě Hulín". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227735.
Texto completoMcGivney, Eric. "Comparison of UV-C and Vacuum- UV induced AOT on the acute mortality of microalgae". Thesis, KTH, Mark- och vattenteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171839.
Texto completoEricsson, Emma-Helena. "Are organohalogen compounds in backwash water from swimming pool facilities treatable? : An experimental investigation of removal capacities by different filter materials". Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284338.
Texto completoNär människor badar i bassänger hamnar vanligtvis naturligt organiskt material i dem, såsom urin, svett, hår och hudflagor. Desinfektionsmedlet som tillsätts (oftast klor) har som syfte att avlägsna mikroorganismer, men när naturligt organiskt material hamnar i vattnet kommer också oavsiktliga reaktioner ske och halogenerade organiska föreningar bildas. Dessa föreningar kan kvantifieras via AOX måttet (adsorberbar organisk halogen), vilket är den samlade förekomsten av alla bundna organiska halogener i ett prov. AOX består således av flera hundra olika föreningar, varav vissa är mer lipofila och benämns EOX (extraherbar organisk halogen). Många av de föreningar inkluderade i AOX är bioackumulativa, persistenta och giftiga för akvatiska organismer, även i låga koncentrationer. Förutom att vara miljöfarliga för akvatiska ekosystem, kan de också vara skadliga för människans hälsa. Filtret som renar badvattnet i simhallar behöver backspolas regelbundet och backspolvattnet, som innehåller AOX, skickas vanligen till spillvattennätet. Vid avloppsreningsverket är det visat i ett tidigare examensarbete samt i andra rapporter att en del av de inkommande AOX ämnena även följer med det utgående, renade, vattnet ut i recipienten. Det är därmed av vikt att minimera ämnena redan vid källan, det vill säga på badanläggningen. I denna masteruppsats har behandlingstekniker för halogenerade organiska föreningar undersökts. Huvudfokus har varit på experimentella kolonntester för fyra filtermaterial (granulerat aktivt kol, naturliga zeoliter, PoloniteR och Zugol), men även andra tekniker har studerats teoretiskt. I testerna användes äkta backspolvatten från en simhall. Alla material reducerade AOX till viss del och visade på effektivare reducering efter hand. Det var dock tydligt att det aktiva kolet var mest effektivt och hade hög reducering redan i första mätningen, AOX-reduceringen låg på över 95 % (jämfört med det obehandlade backspolvattnet). Vad som dock var problematiskt med det aktiva kolet var att det släppte höga halter fosfor i början av kolonntestet, vilket också bekräftades med ett skaktest. Dessutom uppvisade materialet praktiska problem. Ur ett realistiskt perspektiv med dessa problem i åtanke, blir det inte hållbart i längden att använda detta specifika kol. Det finns dock många olika typer av aktivt kol, vilka förmodligen är mer lämpliga och som inte uppvisar dessa problem, och kan användas för detta ändamål. Vidare antyder det erhållna resultatet att de mer lipofila föreningarna av AOX (EOX) är bundet till partikulärt organiskt material och därmed påverkas väsentligt av mekanisk filtrering. Det är dock viktigt med en aktiv bindning. Projektet har påverkats av covid-19 pandemin med lägre antal folk på badhusen samt mindre tillgång till laboratoriet vid KTH. En föreslagen förbättring av metoden är att ha en kontinuerlig omblandning i förvaringskärlet med det obehandlade vattnet innan det tillförs kolonnerna. Vidare nämns det att modifierade zeoliter verkar lovande samt att nästa viktiga steg för projektet är att bestämma livstiden för filtermaterialen.
Pettersson, Daniel y Fanny Wallerstein. "IMO:s barlastkonventions konsekvenser för sjöfarten inom Östersjön". Thesis, Linnéuniversitetet, Sjöfartshögskolan, SJÖ, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-18558.
Texto completoThe task discussed the consequences within the ship’s operation (economical costs and technology) companies will be affected with when IMO’s Ballast Water Convention enters into force and ballast water has to be treated before entrance to the Baltic Sea. The purpose with the task was to find out which consequences companies will be forced with when IMO’s Ballast Water Convention enters into force. The result compares the difference between law and recommendation because HELCOM’s recommendations are based on IMO’s Ballast Water Convention’s laws. A qualitative method has been used, such as an open interview form, where four different companies were interviewed. The purpose with the interviews was to see if the companies followed HELCOM’s recommendations and which consequences it would lead to and would be necessary when the Ballast Water Convention enters into force. The results showed that the costs would be extensive when installation takes place and it will require technical arrangements. The task also shows that the purchase cost only makes a small part of the vessel’s investment and ballast water treatment systems are almost totally maintenance-free.
Kazlauskienė, Rasa. "Vyžuonos upės ekologinė charakteristika". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060609_123332-92183.
Texto completoVenckus, Julius. "Rekonstruotos Jurbarko nuotekų valyklos efektyvumas". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100616_103144-42430.
Texto completoThe paper examined the reconstructed Jurbarkas domestic wastewater treatment plants performance. Purpose of the survey - the wastewater treatment plant efficiency of aeration system reconstruction. The object of research - Jurbarkas domestic wastewater treatment plants enters an aeration system that was installed in 2008. To achieve these goals has been to move the following tasks: a theoretical description of the biological treatment plant, which affect the biological treatment process and evaluate the effectiveness of the active sludge system changes, the efficiency of wastewater remediation Jurbarkas wastewater treatment facilities, to carry out a comparative analysis of linear and circular aeration system, the sewage treatment plant Jurbarkas electricity costs. Sewage treatment plant efficiency has been studied by BOC7 nitrogen (Nb), phosphorus (Pb) elimination of the water before aeration system replacement and the replacement of aeration systems. The investigation showed that sewage treatment facilities after renovation work reliably. Effluent residual contamination does not exceed the MRL. BOC7 treated water decreased by 16%, total nitrogen (Nb) - 27%, and total phosphorus (Pb) - 56%, compared with BOC7, Nb and Pb before aeration system replacement. Chemical reagent process steps used 488.8 kg/m and less, while at the same time is 22295.2 Lt/m. less cost. Electricity costs have fallen about 14 percent.
Drevinskas, Dalius. "Biržų miesto įtaka Tatulos upės vandens kokybei". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050610_153812-42141.
Texto completoManipura, Walappuly Mudiyanselage Janakasiri Aruna Shantha Bandara. "Bioprocess development for removal of nitrogenous compounds from precious metal refinery wastewater". Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1007341.
Texto completoMožná, Pavlína. "Zdravotně technické instalace ubytovacích zařízení". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226000.
Texto completoМаценко, Олександр Михайлович, Александр Михайлович Маценко, Oleksandr Mykhailovych Matsenko, Іван Валерійович Торба, Иван Валерьевич Торба y Ivan Valeriiovych Torba. "Організаційно-економічні підходи до активізації реклеймінгу водних ресурсів в Україні". Thesis, ОО «Львовская экономическая фундация», 2017. https://essuir.sumdu.edu.ua/handle/123456789/80406.
Texto completoChen, Syue-Ren y 陳學仁. "Application of Integrated Solar Power Disinfection System on Small Water Treatment Facilities". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/83647287699873731383.
Texto completo淡江大學
水資源及環境工程學系碩士班
102
Residents in remote mountainous areas of Taiwan are still dealt with groundwater or streams, mountain spring water has not been used as sources of drinking water leaving the water can not reach the EPA announcement standards. The main purpose of this study for small water systems supply issue as a research direction, whether this system can achieve EPA regulations set standards for drinking water and drinking water has long been a problem for people in remote mountainous areas. The purpose of this study focused on small water systems supply issue as a research direction, this system is able to achieve EPA regulations set standards for drinking water and drinking water problems for a long time, long-term consumption for people in remote mountainous areas under the condition will cause some people derived vectors therefore this study was to explore the solar system provides two kinds of power supply disinfection system, chlorination and ultraviolet germicidal UV technology. To investigate the feasibility of this system over two disinfection regulations and standards of the E. coli stream processing. Discussion follows: 1.seasonal variations in water quality survey 2.Investigate under different weather conditions the efficiency of solar power has reached self-sufficiency benefits 3.Explore the feasibility of solar photovoltaic systems used in the processing of small water chlorination 4.plant scale tests in order to benefit a relatively simple system, UV water disinfection and chlorination
Quinn, Claire. "Impacts of process upsets and transient water quality events on UV disinfection performance at Ontario water treatment facilities". 2004. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=80936&T=F.
Texto completoGregg, Matthew David. "Treatment options to mitigate transport of harmful algal species and pathogens via ships' ballast water and shellfish translocation". Thesis, 2009. https://eprints.utas.edu.au/19870/7/whole_GreggMatthewDavid2009_thesis_ex_pub_mat.pdf.
Texto completoChang, Ying-Ju y 張媖茹. "Membrane Filtration Performance and Fouling Analysis of Microfiltration Membrane-assisted for Small Water Treatment Facilities". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/cd526k.
Texto completo國立臺北科技大學
化學工程研究所
102
Membrane filtration is emerging as an efficient technique in water treatment. It could effectively remove a number of organic and inorganic pollution without large amount of chemical additives and control the production of by-products and precursors in disinfection. Mountain water, ground water and river water of Taiwan are mainly discussed in this experiment. Two major works have been done in the thesis. The complex ingredients including organics and inorganics in different raw waters have been analyzed and studied their effects to the membrane filtration. The falling tendencies due to organics or inorganics from each of raw water have been researched by sampling the membrane under different filtration days. Most of reversible fallings could be removed by physical washing. Irreversible fallings should be reduced to prolong the lifetime of membrane, sodium hypochlorite is suggested for raw water containing higher amount of polysaccharide and sodium hydroxide for humic acid to have better performance of back flushing. Based on these concepts, the optimal backwash procedures of membrane for different raw waters have been proposed. The milliQ-NaOH dual physical and chemical method is suitable for river water as source to have best backwash performance and so dose millQ-NaOCl method for ground water. During continuous filtration, bacterial could through its extracellular secretion attach to the membrane surface and breed. These attachments can be efficiently removed by adding sodium hypochlorite into backwash procedure and sodium hypochlorite will maintain on membrane surface to form a protection layer to cut off E. coil and other bacterial. It is necessary to turn on the blower when dealing with water containing high anaerobic bacterial to prevent the breed of these bacterial due to decreased dissolved oxygen. At the end, government can apply membrane filtration technique to supply clean and safe water to those remote areas.
Atta-Asiamah, Ernest. "Estimation of the cost of building a water treatment plant and related facilities for Kaw City, Oklahoma". 2010. http://digital.library.okstate.edu/etd/AttaAsiamah_okstate_0664M_10864.pdf.
Texto completoCIOU, KUAN-HUA y 邱冠華. "Investigation on the Maintenance and Management of Tribal Small Water Treatment Facilities: A Case Study of Tmunan". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/f58r26.
Texto completo大漢技術學院
流通與行銷管理研究所
104
Small water systems are constructed based on the take care if aboriginal by government agencies. However, its actual operating condition and applicable value have not yet discussed. Governments support hardware devices of small water systems, and subsequent software are autonomy and discretion by tribes. This study aim to explore whether small water system fulfill Tmunan residents’ expectation and requirements. Thus, this study selected Tmunan as research subject in this study, and employed in-depth interview to collect residents’ opinions toward small water systems in their tribe. The interviewee of this study including one government officials and four Tmunan residents. And the issues of interview including (1) small water system status of Tmunan, (2) it’s relative pros and cons, (3) impact on traditional life, and (4) performance, service attitude, and residents’ satisfaction of Tmunan small water system. The results found that Tmunan small water system brought many conveniences of life, and the loading of water for residents is quite cheap. However, the biggest problem of Tmunan small water system is that there exists a communication gap between government officials and residents. Governement official thought they introduced a good policy and with perfect processing. Tmunan residents think the government officials neglect their needs, and are too bureaucratic, perfunctory and sloppy for related processing. Thus, resulting in a sense of distrust and confrontation between the government and the people, thereby affecting subsequent adverse propaganda and implementation of new policies. It is urgent for improvement. Small water system faces two biggest problem is that the supply is unstable and vulnerable to external forces destroyed; ongoing maintenance requirements and costs and must rely on tribal peoples to share the burden. The one who is responsible for management and maintenance of small water system is water patrol administrator, who is also tribal member. The water patrol administrator usually has no professional training and uninsured. Thus, it also has no security guarantees. Based on results, the study proposed three suggestions: 1. Maintenance and management two functions should be separated. 2. Water earnings shall pay management fees. 3. Maintenance costs should support by governances. Keywords:Small Water Systems, Tribes, Water Resources Management, Policy Performance, Service Attitude
Chen, Meng-Ke y 陳孟克. "Study on Management Issues of On-site Treatment Facilities for Municipal Waste Water-Example of Constructed Wetland". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/87652575094877746139.
Texto completo國立臺北大學
自然資源與環境管理研究所
99
In response to the development trend of the metropolitan area, Centralized sewage treatment plant is clearly outdated, So to deal with municipal waste water is in on-site treatment facilities in response to the manner born. But now, after handling the construction, Follow-up issues in facilities management, most of the focus at the operational level, For the facilities themselves can produce the added value and the relative lack of public participation, And not a corporate management structure can be as systematic follow-up of management and maintenance, Therefore, this study identified through a literature review free water surface and subsurface flow system as study targets. Course of the study, the Department of Environmental Protection throughout various facilities management and business management point of view, the final Balanced Score Card of the two-way loop to handle more in keeping with the current demand, And from follow-up of the sum-type dimensions (economic, administrative, environmental, public participation) program, Management structure (free water surface , subsurface flow system) and management procedures (vision, strategic objectives, management program), etc as the management of the foundation. Steps in accordance with management processes, Mainly to enhance the wetland's environmental quality and public participation in wetland management is the ultimate vision, Through economic, administrative, environmental, public participation in the four main dimensions, the vision into strategic objectives, And demand response objectives of the measures, and finally propose management options to achieve the management of wetlands.
KUAN-HSUSHEN y 沈冠旭. "The improvement strategy and the waterquality analysis of small water treatment facilities for aboringinal area in Chiayi Country". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/tzuab3.
Texto completoVan, Zuydam Constance Sthembile. "Determination of Polycyclic Aromatic Hydrocarbons (PAHS) resulting from wood storage and wood treatment facilities for electricity transmission in Swaziland". Diss., 2007. http://hdl.handle.net/10500/549.
Texto completoEnvironmental Sciences
M. Sc. (Environmental Science)
Edokpayi, Nosa Joshua. "Assessment of the Efficiency of Wastewater Treatment Facilities and the Impact of their Effluents on Surface Water and Sediment in Vhembe District, South Africa". Thesis, 2016. http://hdl.handle.net/11602/749.
Texto completoROLNÍKOVÁ, Jitka. "Návrh plánu společných zařízení ve zvolené lokalitě". Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-395261.
Texto completoANDREJKOVÁ, Michaela. "Zpracování plánu společných zařízení pro komplexní pozemkovou úpravu". Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-395252.
Texto completo