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  • 1.
    Al-Najjar, Nasik
    School of Technology and Design/Civil Engineering, Växjö University, Sweden.
    The future water supply of Växjö municipality – evaluation of different alternatives2007In: Vatten, ISSN 0042-2886, Vol. 63, no 4, p. 299-312Article in journal (Other academic)
    Abstract [en]

    The water supply in Växjö municipality has since 1887 been based on surface water from Lake Helgasjön. A water treatment plant was built in 1957 and was extensively reconstructed in 1969 but there are still problems to accomplish with drinking water quality, mainly related to temperature, smell and taste, manganese and aluminium rest. The present water consumption has periodically approached the water treatment plant maximum capacity. A performed risk analysis showed that catastrophic consequences for the water supply could occur due to an accident in a nearby traffic route or discharges from an industrial area. In 1997 Växjö municipality decided to perform a comprehensive investigation of different alternatives for future water supply. Seven alternatives were evaluated including remedial measures at the present water treatment plant. The chosen alternative was based on supply and conveying ground water from the Berga Esker in Ljungby municipality. Re-infiltration of ground water will be used to guarantee the required water quality and quantity and will be implemented in autumn 2008 with a planned supply of 200 l per second delivered to about 70,000 persons in the municipalities of Växjö and Alvesta. The article describes the different alternatives, motives for the chosen alternative and the evaluation procedure.

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  • 2.
    Al-Najjar, Nasik
    et al.
    School of Technology and Design/Civil Engineering, Växjö University, Sweden.
    Hultman, Bengt
    Royal Institute of Technology (KTH), Department of Land and Water Resources Engineering, Stockholm, Sweden.
    The water and wastewater situation in Iraq – problems and possibilities for counter-measures2004In: Vatten, ISSN 0042-2886, Vol. 60, no 4, p. 269-274Article in journal (Other academic)
    Abstract [en]

    A summary is given of the water and wastewater situation in Iraq before the Gulf War 1991, the situation after the Gulf War and the recent effects of the conflict in 2003. The access of safe water was halved in certain governorates after March 2003 and half of the sewage works were out of function with a discharge of untreated wastewater into rivers and channels. The supply of electricity was less than 4 hours per day in January 2004 and caused discharges of untreated sewage on streets etc. The leakage from the water net was estimated at 60%. The wastewater system in 3 out of 5 schools was estimated to be out of function and epidemics have especially affected children and caused increased mortality. Special issues like the illegal openings of water pipes and security have worsened the situation. The Swedish knowledge of water and wastewater handling may have an important role in rebuilding water and wastewater handling in Iraq and different possibilities are exemplified.

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  • 3.
    Andersson, Rickard
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Dagvattenhantering inom starkt hårdgjord radhustomt med jord av begränsade infiltrationsegenskaper.2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The problem with hard surfaces, as for example asphalt and roofing, is that they do not absorb enough rainwater. Furthermore, this leads to that grass surfaces and other absorbent surfaces around having to take care of all stormwater that the hardened surfaces cannot infiltrate. Flooding in urban environments has become increasingly common due to heavy rain and a high proportion of hard surfaces. This leads to an overload of the pipe line for rainwater. Therefore well-functioning balancing trays close to source needed to mimic natural drainage of nature. The goal was to investigate witch countervailing magazine mainly should be applied in heavily paved small terraced plots, where the soil has limited infiltration properties, in terms of efficiency, cost and maintenance.

    Method: The methods used to meet the objective is analysis of documents, qualitative interviews and a case study. The document analysis serves as a basis for the case study and interviews serve as empirical input for the case study.

    Findings: The countervailing magazine that is preferred is the pipe magazine when the plant surface is limited and the soil has limited infiltration properties.

    Implications: The problem statement treats the issue with an increasing number of floodings in urban environments due to the paved surfaces and the heavy rains. Furthermore, it is disclosed that the management system therefore risks becoming overloaded. This problem was also confirmed in the interviews. The work did not identify which countervailing magazine that is preferred for all kinds of cases, but only in the cases where land space is limited and where the soil has limited infiltration properties. The solution is therefore that pipe magazine is the magazine preferred for local disposal of stormwater in those circumstances. It is recommended when applying this result real life, to use the cost per meter and countervailing volume per meter available in efforts to work out how long stretch pipe magazine needs to be built on to achieve the desired equalization volume. Rating systems made for maintenance can however be used for other cases.

    Limitations: The result is applicable in similar scenarios as for the case study, which is at a row house site where the surface for the magazine is limited and where the soil has limited infiltration properties. A graph has been developed for the work where the construction cost per meter is described for each countervailing magazine and also has a graph with stormwater volume per meter been developed. These diagrams can therefore be applied to other cases with small areas but with other measures of the plot. Therefore the result also is applicable to other cases.

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  • 4.
    Backström, Martin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Wikström, Ludvig
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Effektivisering av ekologisk dagvattenhantering i stadsmiljö2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In the city of Jönköping problems with the irregular flow, erosions and transport of sediment materials are recurring in the brook Strömsbergsbäcken. The problems is somewhat caused by an increased flow of storm water in the brook, which leads to high flow peaks in some parts of the brook since the original furrow is not dimensioned for the increased amount of water. The purpose of this project work is to make ecological drainage management in urban environments with a high amount of storm water discharge more efficient. The objective with the report is to create valuable material of how to accomplish ecological drainage management in urban areas and that the report will be useful for future similar connections. To fulfill the objective, the following three questions have been designed as a significant part of the final project report:

    • How can the load on the general drainage system be reduced?
    • How can the pollution effects of storm water runoff in urban areas be reduced?
    • Which treatments are appropriate to enhance the ecological storm water management in Strömsbergsbäcken ?

    The methods that have been used to solve these questions are document- and literature studies, and also a case study.The thesis results shows that the storm water flows from four of the nine areas that has its outlets in Strömsbergsbäcken, need to be treated through some kind of a solution or method that delays the water flow. The treatment could be performed in the area, before the storm water reaches the storm water network, which leads to Strömsbergsbäcken. The storm water flows can also be reduced by treatments adjacent to the outlets in the brook, where the largest flow peaks occurs. For example an essential solution to decrease the flows in Strömsbergsbäcken is to reconstruct the old dam located near one of the outlets into a basin, which will delay the stormwater flows.

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    Effektivisering av ekologisk dagvattenhantering i stadsmiljö
  • 5.
    Blekic, Demir
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Fritz, Adam
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Förslag på generell arbetsprocess för utredningar av befintliga dagvattendammar ur ett funktionellt perspektiv2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: At present are new stormwater ponds constructed to store stormwater which overloads stormwater pipe systems while existing stormwater ponds remains without overhaul. Since climate changes contributes to five-year rain in a higher frequency, which increases the flow of stormwater and causing more stormwater ponds to be undersized. In order to preserve social functions, are a general work process investigated of how municipalities can investigate and preserve their existing stormwater ponds. Method: The methods that are used are interviews, case study and literature study. The interviews contribute to solutions and proposals of investigation methods and proposals for action. The case study were performed in three stormwater ponds and examines the investigation methods that can be used. Collecting empirical data in a practical case, should increase the investigation’s credibility. The methods used in the case study are calculations, sediment sampling and document analysis of the basis of existing stormwater. Using literature study are the empirical data of the investigation analyzed with other sources to check the reliability of the empirical data. Findings: Several methods of investigations and action proposals were analyzed. Three investigation methods which fit a general work process were: flow proportional sampling, sediment sampling and stormwater calculations through the stormwater model Stormtac. The proposals for action which suited a general work process were: construction of a trench around the pond to expand the storage area, planting plants that take up nutrients and heavy metals tied up in stormwater, exploit the stormwater ponds shape where the hydraulic efficiency are exploited flat out by placing the inlet and outlet on opposite ends, and building trenches with a gravel embankment with aquatic plants. Implications: Flow proportional sampling were a reliable investigation method according to interview and literature study. Sediment sampling of sediment in bottom of in- and outlet can be used in a general work process, but certain contamination levels can be misleading depending on how detailed sediment samplings are done. Stormwater model Stormtac and its calculations can be used in a general workprocess because publication Svenskt Vatten P110 (2016) are confirming the models calculations. The proposals for action were not tested in real cases, but the effect was confirmed in the interview and literature study. Limitations: The case study was limited by investigating two methods, one of which is stormwater model Stormtac and sediment sampling. Selected contaminants such as heavy metals, oil, nitrogen and phosphorus are analysed. The study is delimitated by analyzing how recipients are affected by the studied existing stormwater ponds.

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  • 6.
    Boo, Johan
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Magnusson, Nils
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Hållbar dagvattenhantering i brant terräng: En fallstudie av ett planerat bostadsområde i Gränna2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The continuous densification of urban environments with an increased amount of hard surfaces as a result, along with future climate change, involves a number of challenges that must be taken into account when applying a sustainable stormwater management. In addition to this, there are several other challenges that needs to be considered when planning for a sustainable stormwater management in residential areas located in steep terrain where an increased water volume and water velocity increases the risk of floods and contributes to an increased level of contamination in the runoff.

    This study aims at identifying suitable stormwater solutions for residential areas located in steep terrain.

    Method: The methods used to achieve the objective of the thesis have been literature review, document analysis, qualitative interviews and calculations. A case study of a planned residential area in Gränna, Jönköpings municipality, has been conducted and resulted in the gathering of empirical data.

    Findings: Geophysical, social, economic and legal factors must be taken into account when implementing sustainable stormwater management and in order to best prevent damage caused by floods of buildings and facilities.

    The application of sustainable stormwater solutions to delay and purify water is important where steep terrain leads to large stormwater flows, in order to reduce the risk of floods and the pollution levels in recipients caused by erosion. No single measure is sufficient to fully address the present risks, but by using a combination of open stormwater facilities and infiltration technologies, pollution levels in the drainage and flooding problems can be drastically reduced.

    Implications: The knowledge, and in some extent the will, among Swedish municipalities to implement sustainable stormwater management needs to be strengthened. In the case of construction of new residential areas in steep terrain, enclosed areas should not be exploited but instead be used as a designated area for excess of stormwater. Infiltration methods should be used in combination with open stormwater facilities to better handle the rain with varying recurrence and to reduce erosion damage.

    Limitations: The case study has served as a practical example and the calculations are not generally valid, although with some adjustments they can be applied in similar areas. The results of the literature review and interviews can be applied to residential areas in other Swedish municipalities where the terrains results in an increased water velocity.

    Keywords: Best management practice, erosion, infiltration, low impact development, steep terrain, stormwater pond, stormwater swale, sustainable stormwater management.

  • 7.
    El Masry, Josef
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Alkazragi, Miher
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Ovidkommande dagvatten i spillvattenledningar - En fallstudie av dagvattenhantering i ett bostadsområde i Hok2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 8.
    Friberg, Rebecca
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Rödfyr - En utredning avanvändningsområden och hantering med fokus på ekonomi och miljö2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Burnt alum shale is mining waste derived from combustion of the same rock. It exists in several places in Västra Götaland. Alum shale was previously used as filling but nowadays the use is limited thus the material is leaching heavy metals. The amount of waste normally put in landfills shall now be diminishing. Therefore the possibility to landfilling alum shale is limited. The purpose of this study is to increase the knowledge of how alum shale can be dealt with in an environmentally safe and economically beneficial way. The goal is to bring out suggestions for applications of use and ways of handling the excavations to contribute to a better environment and to achieve better financial conditions. By investigate what claims need to be achieved for the possibility of using Alum shale, useful areas of use and suitable management where brought forward. This study has been composed as a mean to get a bachelor degree in engineering, with the benefitial partner Skövde kommun.

    Method: Literature study, document analysis and interviews where used as research methods. Research on waste, alum shale and remediation techniques where studied in the literature study. In the document analysis, environmental study were analysed to retain knowledge of leachate. The interviews presented information of the authorities work with alum shale and experts’ suggestions of how alum shale can be used and handled.

    Findings: This study showed that there is other applications than landfills, and that there is methods to limit the leachate. If to be used, knowledge of the alum shale’s propensity of spreading due to stirring and relocation must be known. To inhibit leachate van be achieved by encapsulate the alum shale by waterproofing. This means that the alum shale can be used as a resource. Areas will be available for exploitation, it will not affect people in the surroundings, and the leachate to the groundwater will diminish.

    Implications: At minor sensitive land use, alum shale can be used as filling material, such as industrial areas and roads. This implicates waterproofing of the material. Asphalted surface, in combination of waterproofing the top surface and the vertical sides limits the leachate of metals considerably. The haul is often ruling the possibility to relocate the shale. If the alum shale, at disposal, could be used for filling purposes, the cost of purchasing new material, and outlet of new raw material does not need to burden the environment.

    Limitations: The alum shale studied is the one of Skövde County. The study should though be applicable to the whole of Västra Götaland. Not having the time to expand the interviews and include more people with research experience and expertise, is one of the limitations of this study. Also, carry out leachate tests could have contributed with more knowledge.

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  • 9.
    Karlsson, Daniel
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Steen, Fredrik
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Utformning av fördröjningsdammar, medavseende på rening av dagvatten fråntransport- och lagerhållningsindustri2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Receiving waters downstream should not be affected by storm water from storageand transport industry, therefore it requires treatment of pollution. The objectiveof this study has been to show how a storm water pond should be designed toachieve a good treatment. The methods used are a literature review, and a casestudy. The case study has been performed for a planned industrial area. Thequestions which needed to be answered are the type of pollutants that might occurand how they are treated. Furthermore, it has been studied which properties affectthe purification in a storm water pond.The results of the study showed that the most pollutants were heavy metals, toxicorganic matter and nutrients. It has also become apparent that these pollutants, ismainly treated by sedimentation and absorption by plants. Furthermore, it hasemerged that there is no standard for how a storm water pond should bedesigned, with regards to the treatment. This is because all ponds have differentexternal conditions that control the design, which depends on the area where thepond is located. However, it has been shown that there are a number ofparameters that should be taken into account, in order to get a high treatmenteffect in the pond. The most important of these is the hydraulic and hydrologicalefficiency of the pond.

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  • 10.
    Lindbom, Alexander
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andersson, Henrik
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Läcksökningsmetoder i markförlagda vattenledningar: En utredning för att underlätta valet av läcksökningsmetod2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 11.
    Najar, Nasik
    Department of Land and Water Resources Engineering School of Architecture and the Built Environment Royal Institute of Technology (KTH), Stockholm, Sweden.
    Water management and performance on local and global scales: A comparison between two regions and their possibilities of knowledge transfer2010Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    The problem to secure safe water supply, good sanitation and a good watercourse and marine environment status has become increasingly complex and at the same time more and more important to meet. It has been recognized, that an integrated approach must be used to meet not only technical and scientific aspects, but the role should also be included of factors such as economics, acceptability, capacity building, and efficient management in the overall view. Integrated approach efforts need to be introduced at different levels, i.e. among the population as well as at municipal, regional (county administrative board, county council, water authority) national and international (EU, global) levels. An important goal is that various activities should follow similar objectives.

    One important factor in this respect is the Brundtland report in which the concept of sustainability was highlighted and universally accepted, even though similar ideas had been put forward earlier. Based on the concept of sustainability a common policy has been developed from Agenda 21 at the local level to globally formulated Millennium targets. Independently of the country, general consensus seems to exist on overall goals for water and sanitation. However, there is a big difference in the way the goals have been implemented in different countries depending on priorities to other areas of concern as political systems, economic conditions, and the degree of capacity building. The experience developed in Sweden and in large parts of the Western world has been judged to be of great value to be transferred to other countries with a lower development or lower standards of water and sewerage systems. For this reason, several global and regional agreements are presented, and two regions (the Baltic Sea and the MENA regions) were chosen to assess similarities and differences between them. Obvious differences are the relatively abundant supply of water in the Baltic region, while the MENA region is one of the world's poorest regions with regard to water availability. Major differences also exist between countries within each region. Among the similarities is the need to achieve similar demands on the quality of discharged wastewater in the long run. The Baltic Sea Action Plan controls the stringent requirements of wastewater quality in the Baltic region, and in the MENA region the growing interest in wastewater reuse for irrigation, industrial use and also for reuse as clean water is the guiding factor.

    On the national level Sweden and Iraq have been selected for description and discussion and at local level Växjö in Sweden and the cities of Baghdad and Erbil in Iraq and the Kurdistan region of Iraq, respectively. While Växjö municipality has been able to follow a path in line with achieving sustainability the situation of cities in Iraq and Kurdistan are entirely different due to failed investments and maintenance of infrastructure for a long time as well as the effects of war. This is discussed in detail and the actions needed to restore and improve the infrastructure are described.

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  • 12.
    Najar, Nasik
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science. School of Technology and Design, Department of Civil Engineering, Växjö University, Sweden.
    Hultman, Bengt
    Royal Institute of Technology (KTH), Department of Land and Water Resources Engineering, Stockholm, Sweden.
    Cost-effective water supply and sanitation2007Conference paper (Refereed)
    Abstract [en]

    Water supply and sanitation have about the same goals all over the world. The needs for safe water supply and sanitation are obvious although not generally implemented. This depends often on the economical situation and bad management. Additional factors are effects of war actions and natural disasters as flooding of rivers and tsunamis. The strategies are, however, similar independent of the actual conditions. In this paper the strategies as developed in Sweden are described related to practical implementation of technology and management strategies. The experiences have shown on both mistakes and successful handling. Today, Sweden is involved in both adjusting policies according to European Union rules (as EU Water Framework Directive) and also in sharing experiences to facilitate international implementation of cost-effective methods.

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  • 13.
    Najar, Nasik
    et al.
    School of Technology and Design, Department of Civil Engineering, Växjö University, Sweden, Växjö, Sweden.
    Hultman, Bengt
    Royal Institute of Technology, Department of Land and Water Resources, KTH. Stockholm, Stockholm Sweden.
    Water management and technology in Swedish municipalities - assessment of possibilities of exchange and transfer of experiences2009Conference paper (Refereed)
    Abstract [en]

    The water and wastewater infrastructure began to be developed in Sweden more than one hundred years ago. Much attention was given, in the beginning, to fire prevention and hygienic problems with water borne diseases. Somewhat later storm sewers (combined system) were constructed to remove storm water and wastewater and then successively more efficient wastewater treatment plants were developed. Today water and wastewater handling is seen as a multidisciplinary subject where also attention is given to possible effects of climate changes and possibilities for resources recovery.

    Implementation of advanced water and wastewater systems involves not only different technologies but also effective administration and legislation. The implementation may be on national (also involving EU directives), regional and local scale. As a case study, the local implementation will be illustrated for the municipality Växjö in South Sweden with about 80,000 inhabitants.

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  • 14.
    Najar, Nasik
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Persson, M. Kenneth
    Division of Water Resources Engineering, Lund University, Lund, Sweden.
    Strategies, processes, and results for the future water supply of the Växjö municipality: Evaluation of an evidence-based case study of long-term strategies within the water and wastewater sector in Sweden2019In: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 11, no 10, article id 2150Article in journal (Refereed)
    Abstract [en]

    In 2009, the Bergaåsen Water Supply Scheme was put into operation to ensure the future drinking water supply of two municipalities in southern Sweden. Bergaåsen replaced two vulnerable water treatment plants. It was implemented in an environment that was characterized by sensitive recipients and limited access to water. This article aims to analyze how strategies were developed to meet sustainability requirements, if this solution has ensured good quantity and high quality after ten years of operation, and the extent of the project's economic impact on consumers. The project was analyzed as an evidence-based case study using semi-structured interviews, surveys, and document analyses. The study found that the chosen options succeeded in guaranteeing outstanding quality and secure delivery. Over 90% of water users were satisfied and had trust in it, and less than 3% were dissatisfied. The design time for withdrawal capacity has been extended from 30 to 50 years through planned measures. The study clarifies also that, due to some externalities, there has been virtually no economic impact on users. Bergaåsen is a clear case for the value of developing long-term strategies and implementing them in real life.

  • 15.
    Ranerfors, Martin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Nilsson, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Jämförelse av strategier och lösningar för hållbar utveckling av VA-verksamheten i Jönköping och Borås kommun2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Purpose: The purpose with this thesis is to identify the problems that these two municipalities, Jönköping and Borås, are facing in regard to sustainable development in the water infrastructure area and highlight the different strategies that the municipalities has developed to find solutions to these problems. Two municipalities have been chosen for this analyse, the municipalities of Borås and Jönköping, for the reason that they both have similar population but two different solutions in how the municipality water management is run. The questions that the thesis are built on is:

    1)    How do these two municipality work towards a sustainable development in water management?

    2)    What are these strategies based on?

    3)    How does the checklist for sustainable development been developed and how does it differ between the two municipalities?

    Method: The method of finding the answers to these questions is six qualitative interviews with people from both organizations with knowledge of the subject. Literature studies of the theories behind sustainable development in water infrastructure and analysing documents provided by the municipalities in order to scientifically back up the findings from the interviews.

    Findings: After analysing the collected data one can see that sustainability is already a part of water management in general but there is some focus areas that the organizations are working on with different tools which is presented in a checklist.

    Implications: There are three conclusions that could be made from this thesis, they are about legal requirements, technical development and sustainability index.   

    Limitations: This thesis is of limited size and is therefore an overview of these organizations work towards sustainable development. The thesis does not bring up the political aspect and does not do a deeper analysis of the different aspects of water management. 

    Keywords: sustainable development, sustainable water management, water management

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  • 16.
    Sundlöv, Linus
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Lind, Filip
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Bristfälliga enskilda avlopp i Jönköping och Gnosjö kommun: Kartläggning och förslag till förbättring.2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Idag finns det cirka 750 000 fastigheter i Sverige som har ett enskilt avlopp. 40 % av dessa uppfyller inte miljöbalkens ställda krav och anses därför som bristfälliga. I åtgärdsarbetet krävs därför att de bristfälliga enskilda avloppen ses över och undersöks grundligt för att finna återkommande brister. När bristerna var dokumenterade gavs förslag till förbättring. Syftet med denna rapport var att kartlägga de bristfälliga enskilda avloppen i Jönköping och Gnosjö kommun och att ta fram förslag till förbättringar. Även att kartlägga de lösningar som finns tillgängliga nationellt och internationellt.

  • 17.
    Unoson, Lars
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Bardh, Jonathan
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Kommunernas användning av avrinningsområdesperspektivet i dagvattenplanering: En kvalitativ undersökning2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of the report is to examine how the municipality's VA- organizationtakesintoaccountandusesthecatchmentarea'sperspectiveatstormwater planning, and to investigate the extent to which the VA-organization has the tools needed to solve the task. The goal is to highlight the challenges that the municipality's VA-organization is experiencing with implementing a watershed-perspective in order to achieve sustainable stormwatermanagement.

     

    Method: The study is conducted as a qualitative case study with abductive approach where the authors move between theory and empiricism. Semistructured qualitative interviewshavebeenconductedwithliteraltranscription,whichtogetherwithliterature studies created coherence and achieve thegoal.

     

    Findings:Theresultsuggeststhatlargermunicipalitiesstudywatershedandimplement stormwater measures in line with the watershed-perspective. Basis such as deluge- mapping or structural-plans are used to locate suitable locations to implement sustainable stormwater measures with maximum benefit for the entire watershed area. Modeling tools facilitate work with sustainable stormwater measures for all municipalities. Sustainable stormwater measures in urban areas is difficult to implement due to lack of space. A challenge that needs to be resolved is the question ofresponsibility,bothintermsofadministrativecooperationinthefieldofstormwater issues, but also cooperation concerning the watershed betweenmunicipalities.

     

    Implications: The results indicate that smaller urban areas are not taken into account inthewholewatershedarea.Thiscanhaveconsequencesdownstreaminthewatershed area. By locating suitable sites and plan for how to implement a stormwater measure, the entire watershed area is favored instead of individual development plan. Issues regarding responsibilities in the watershed area is seen as severe, and there is potential for development in this area. The respondents argue that there is a need for clearer consequencesfornon-compliancewithenvironmentalqualitystandardsforstormwater process.

     

    Limitations:Thestudyislimitedtothreemunicipalities'VA-organizationsinsouthern Sweden.Thisdidnotgivethestudyacomprehensivepictureofthemunicipality'swork withthewatershed-perspective,onlytheVA-organization.Asonlythreemunicipalities were studied, the result cannot be considered generally or valid in other municipalities ' VA-organization. The result did not have any generalconclusions.

     

    Keywords: Stormwater management, sustainable stormwater management, watershed.

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