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3141 Uppsatser om Ballast water treatment - Sida 13 av 210

Rening av avloppsvatten efter skärprocess

ABB I-R Waterjet Systems combines the robotics and motion expertise of ABB Flexible Automation with high-pressure intensifier/pumping technology from Ingersoll-Rand to provide and continue to develop innovative waterjet cutting systems for global markets. The purpose of this assignment is to develop a process water purifier. The purifier should be applicable as an option to ABB I-R?s production cell Cutting-Box. At first hand the process water should be purified well enough to let out in the municipal sewage system, but the ultimate solution is purifying the process water to the range that recycling is possible. When investigating the different principle of purifying water, a research of different products and their manufactories was done. These different products were compared and the principle of filtration was the most applicable, as most of the products were designed for far larger applications. As the process water contains quite large amount of particles, it is necessary to perform the filtration in different steps. The process water purifier is therefore composed of a module of coarse filtration and one of micro filtration. In the module of coarse filtration the mainly amount of fibres and particles are eliminated. They are kept back in the container unit with the larger fragments and dumped with these when the container is emptied. In the module of micro filtration the filtration is performed in two steps. In the first step particles larger than 50?m are eliminated, in the second step the micro filter is setting the range of purifying, in this case 10?m.

Patienters upplevelser vid tandhygienistbehandling på Högskolan Kristianstad : En enkätstudie

The aim of the study was to describe how patients experienced communication, treatment and costs at the dental hygienist program at Högskolan Kristianstad. The study was based on a questionnaire that was made at the patient clinic. The questionnaire was conducted by the treating dental hygienist student after the treatment. The questionnaire was answered in the waiting room. Collection of the material occurred during the month of March in 2009.

OTEC-Ett energialternativ för enhållbar ö

Ocean Thermal Energy Conversion (OTEC) is a technology that utilizes the temperaturedifference in oceans between the warm surface water and the cold water at 1000 m depthto produce electricity. The purpose of this report is to investigate if OTEC with its synergiescould become a commercially feasible energy solution for a small island. A literature reviewis conducted to explore the different OTEC technologies and to what extent the threesynergies; fresh water, air conditioning and aquaculture, could be used. In order to calculatethe profitability of these synergies there is also a study conducted on the conventionalmethods and cost of fresh water production, aquaculture and air conditioning. A model is setup using a scenario of a small tropical Island with population of 100 000 people.

Nya tillämpningar för utandningstest kopplade till Kibions diagnostikinstrument IRIS ®

The focus of this study was to examine the nutrients and benthic organisms of the bay ?Mönsteråsviken?, which is influenced by eutrophication. The purpose was also to look at an interesting gradient forming in the bay, namely the distance from the river outflow of Lillån. At 18 sampling sites in the bay samples of water, sediments and benthic organisms were collected in late April of 2011. The water was analyzed for nitrate, phosphate and chlorophyll.

Vattenhantering och reglering för textilproducenter i Turkiet

Vatten är en av jordens livsviktiga resurser, en resurs som hela tiden minskar. I delar av världen råder akut vattenbrist och ofta återfinns industrier med hög vattenanvändning i områden med begränsad vattentillgång. En av dessa industrier är textilindustrin. Vid textil beredning är vattenförbrukningen mycket hög och avloppsvattnet är ofta mycket förorenat. Vattenfrågorna inom textil produktion har fram till idag inte uppmärksammats i lika stor grad som arbetsrätts- och kemikaliefrågorna.

Björkbarksextrakt, BBE : en lönsam lösning på betningsproblematiken?

The calculations in this thesis are evaluating the profit as a consequence from treating young stands of pine in Sweden with birch bark extract, BBE. Treatment is to be done with the object to lower or fully reduce the moose browsing on pine. The study is made in three versions. The results from each version separately will follow below. Version I.: The size of the moose population is in no way affected by the reduced resources of food as a consequence of large scale treatment with BBE on pine. Results show profit at a 3 percent level of interest with the exception of treatment program with more than 4 treatments all together and with the exception of Västerbottens Län with an early first treatment. Version II.: The population of moose decrease from 10 to 5 individuals per 1000 ha as a consequence from large scale treatment with BBE on young pine stands.

Kemisk karaktärisering samt nedbrytning av process- och avloppsvatten vid SCA Ortvikens pappersbruk

During pulp and papermaking process a huge amount of water is used. The wastewater contains a large amount of pollutants and has to be treated before it reaches the recipient. In March 2004 a new bleaching plant was started up at SCA Graphic Sundsvall AB, Ortviken?s paper mill using peroxide. The production of bleached thermo mechanical pulp and thus the load to the wastewater plant increased.

Inventering av bergborrade brunnar för dricksvatten i område med risk för salt grundvatten : en utredning av grundvattensituationen i Vreta-Ytternäs i Uppsala kommun

The city of Uppsala and its surroundings are a very expansive area. A prerequisite for a sustainable development of the area is well-functioning supply of drinking water. In Uppsala municipality, the Uppsala esker and Vattholma esker are the groundwater storages for drinking water. Besides the eskers, other sources of qualitative groundwater in the Uppsala municipality are relatively poor and more than half of the area consists of ground conditions with a risk of saline groundwater. The neighbourhood of Vreta-Ytternäs is situated 10 km south of Uppsala, in the area with risk of saline groundwater but outside the municipal water supply.

Underlag för BREEAM-certifiering : Kristianstad Nya Galleria

The company Olofsfors AB manufactures drive belts for forest machinery, known as ECO-Tracks, and abrasion-resistant steel and cutting edges for graders, excavators and tractors, known as Bruxite and SharqEdges. Manufacturing these products requires the steel to be heated and molded, then submerged in water and hardened. The water used in the hardening of steel is pumped to the process from pits below the floor and then pumped back to the pit after it?s been used. Since the temperature of this water rises after being used to harden the steel the temperature of the pumping pit needs to be adjusted to maintain its setpoint of 21°C.

Våldsexponerade barn i behandling

This study demonstrates that there is variety of treatment interventions for children exposed to intimate violence. These interventions are differentiated in design but a common ground for them all is that they strive to provide a chance for children exposed to intimate violence, to be able to speak about and process their feelings and violent experiences. The study?s aim is to, with a qualitative approach, seek understanding for the different actors who practice social work, see upon their task in the treatment interventions that are provided for children exposed to intimate partner violence. The study is based on mapping the existing treatment interventions for previously mentioned target group, in Malmö.

Det känns konstigt att vara på samma ställe : Ungdomars upplevelse av kommunikationsprocessen i samband med växelvis boende

Summary:Teenage girls? choice of dropping out or complete a treatment.The purpose of this study is to investigate, from a client?s perspective, why teenage girls (age 13 to 17) drop-out or complete a treatment at Familjehuset in Karlstad, Sweden. We also want to investigate if the teenage girls? experiences coordinate with the social workers opinion of why the teenage girls choose to drop-out or complete the treatment. Earlier research shows that many factors influence the client?s choice.

Ekonomiska och andra värden med CE-märkning av
ballastmaterial

CE-märkning av produkter blir allt vanligare i Europa. I stort sett alla produkter kan CE-märkas. En av dessa produkter är ballast, det vill säga berg- och grusmaterial. Det finns många olika användningsområden för ballast, men framförallt är det en viktig komponent i asfaltbeläggningar, betong och som väg- och järnvägsmaterial. Säkerhets- kraven på dessa typer av ballast är höga, vilket har medfört att ett antal nya europeiska kravstandarder har utvecklats.

Vatten- och avloppssystem i klimatförändringarnas tidevarv : - en studie om VA-situationen i Karlstads kommun, dess sårbarheter och anpassningsförmåga

This report is about the impact climate change has on the water and sewage systems in general, and the situation in the municipality of Karlstad in particular. Which vulnerabilities are linked to water and sewage systems with regard to climate change and extreme weather situations, what are the possibilities to adapt the system to this and what significance does climate adaptation of the water and sewage systems have in relation to sustainable development?To answer these questions I have studied literature on the subject and interviewed several people who work with these types of questions. The answers I have received state that there are a multitude of vulnerabilities linked to the water- and sewage systems, but that there are also many strong interests which strive to take measures and adapt to a changed climate. I have also come to the conclusion that the starting points and views of the possibilities to act differs between the people that I have interviewed, but that theses problems are built into the concept of democracy..

En kvalitativ studie om hur patienter upplever sin hemodialysbehandling.

The purpose of this study was to describe how patients with hemodialysis experience their dialysis treatment. The study was conducted as a qualitative descriptive design. The study is based on six interviews. The interviews were transcribed in their entirety and analyzed according to content analysis inspired by Granheim and Lundman. The result is based on five categories; Stress and requirements, Life-supporting haemodialysis treatment, physical impairments, social constraints and a positive view on haemodialysis.

Fibromyalgi: sjukgymnastiska och närliggande behandlingsmetoder - en litteraturstudie

The cause of fibromyalgia has long been unknown but recent studies has shown that disturbance in the central pain modulation may be the cause. The aim of the study was to examine what kind of physiotherapy and close related treatment methods in the treatment of fibromyalgia there are and to determine their evidence. Articles were obtained by searching through the databases PubMed, Academic Search, AMED/Webspirs, CINAHL/webspirs and PEDro for articles published from 1994 and ten years forward. The study was based on thirty articles that met the criteria for inclusion. To assess the quality of the clinical studies the SBU?s evaluation model was used.

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