Publications
Change search
Refine search result
1 - 8 of 8
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Abdallah, Clement Kamil
    et al.
    Pan African University, Algeria; Ghana Integrated Water, Ghana.
    Mourad, Khaldoon
    Lund University, Sweden; The Centre for Sustainable Visions, Sweden.
    Assessing the quality of water used for vegetable irrigation in Tamale Metropolis, Ghana2021In: Scientific Reports, E-ISSN 2045-2322, Vol. 11, article id 5314Article in journal (Refereed)
    Abstract [en]

    This paper assesses water quality that is used for vegetable irrigation in Tamale Metropolis, Ghana. A mixed-method of research design was employed in this study to collect and analyze the data based on survey instruments. The paper found that Escherichia coli (E. coli) that is usually used as an indicator of water contamination and heavy metals exist in all taken water samples. The mean concentrations of nutrients such as ammonia, nitrate, nitrite and phosphate were recorded as 0.022 mg/l to 5.98 mg/l for ammonia, 1.06 mg/l to 7.52 mg/l for nitrate, 0.031 mg/l to 0.056 mg/l for nitrate and 0.037 mg/l to 0.069 mg/l for phosphate. E. coli and Total Coliforms levels for Sanghani, Kamina and Waterworks from the laboratory analysis were recorded as 3.2x10(3) CFU 100 m/l and 5.5x10(2) CFU 100 m/l, 4.0x10(3) CFU 100 m/l and 1x10(2) CFU 100 m/l, and 2.1x10(3) CFU 100 m/l and 4.6x10(2) CFU 100 m/l respectively. To conclude, based on the measured parameters, water used for irrigation in the Tamale Metropolitan is polluted and may cause potential health risks. Therefore, farmers, traders and consumers need to apply further safety measures to make the vegetables safe.

    Download full text (pdf)
    fulltext
  • 2.
    Berrezel, Y. A.
    et al.
    Department of Hydraulics, University of Tlemcen, Algeria.
    Abdelbaki, C.
    Department of Hydraulics, University of Tlemcen, Algeria.
    Rouissat, B.
    Department of Hydraulics, University of Tlemcen, Algeria.
    Boumaaza, T.
    Oran Water and Sanitation Company, Algeria.
    Mourad, Khaldoon
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Decision support system for the management of water distribution networks a case study of Tourville, Algeria2023In: Larhyss Journal, ISSN 1112-3680, Vol. 2023, no 54, p. 7-24Article in journal (Refereed)
    Abstract [en]

    The analysis of the current situation of water distribution networks (WDNs) is based on many alternatives that are technically feasible and implemented by decision makers. Taking the WDN of Tourville city as a case study, this paper combines a set of decision support systems (DSSs), including geographic information systems (GISs), multicriteria analysis and hydraulic simulation models, to establish a multicriteria decision-making aid method for the renovation and rehabilitation of water distribution networks. This combination creates an expert management system based on multicriteria decision making that strengthens the optimization of the management of water distribution networks in terms of renovation and rehabilitation. After dividing the water distribution network into three emergency levels, it was concluded that 26% of the network is in urgent need of rehabilitation.

    Download full text (pdf)
    fulltext
  • 3.
    Fridell, Kent
    et al.
    Edge, Malmö, Sverige.
    Simonsen, Erik
    Cementa AB / Svensk Markbetong, Sverige.
    Hellman, Fredrik
    Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
    Schouenborg, Björn
    RISE Research Institutes of Sweden, Sverige.
    Multifunktionella urbana dagvattenanläggningar: Referensanläggningar2022Report (Other academic)
    Abstract [en]

    The present report is a compilation of a number of the stormwater facilities that were followed up within the framework of the Formas project Multifunctional urban stormwater facilities. The facilities covered in the report are open superstructures with dense or draining covering, rain beds and treetrenches. A total of five projects from three municipalities and one private company, from southern to central Sweden are mentioned. Within each project there are several facilities that can consist of different constructions and designs. 

    The purpose of the report is to provide an overall picture of the stormwater facilities and research studies that are part of the project Multifunctional urban stormwater facilities. The report is aimed at those with an interest in building sustainable stormwater systems in urban areas. In existing buildings as well as in new development. 

    Download full text (pdf)
    fulltext
  • 4.
    Hellman, Fredrik
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
    Simonsen, Erik
    Cementa AB / Svensk Markbetong, Sverige.
    Rahman, Mohammad Shafiqur
    Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
    Döse, Magnus
    RISE Research Institutes of Sweden, Sverige.
    Schouenborg, Björn
    RISE Research Institutes of Sweden, Sverige.
    Dimensionering, bärighet och infiltration: Uppföljning av Blå-Grön-Grå (BGG) konstruktioner2022Report (Other academic)
    Abstract [en]

    Ongoing climate change means that we can expect more extreme weather conditions with larger amounts of stormwater than normal, often exceeding the capacity of any drainage systems. For an average scenario it is estimated that rainfall, in a 100-year perspective, will increase in the order of 20–30 percent. 

    In urban areas, a large part of surfaces are impervious resulting in reduced natural possibility for rain fall infiltration. As cities become denser, more and more water is directed into the stormwater system. When it becomes full, water is pushed back up to the surface. And in case of more intense rain the worst case scenario is flooding, water-filled basements, damage to surrounding buildingsand a lot of other negative consequences that are more difficult to quantify. 

    In Sweden, over 60 million metric tons of crushed rock material is used for roads construction per year. That's more than 40 million cubic meters of material, or almost 70 filled Globen Arena (Avicii Arena). Most of the material is used for traditional dense pavement structures that intensify the problems and increase runoff.

    One way to reduce the risk of flooding, simplify the handling of stormwater and to provide good conditions for vegetation is to use BGG (Blue-Green-Grey) constructions. Common to these is a subbase layer with a large proportion of voids, which means that stormwater can infiltrate and be stored in the road construction. The open sub-baselayer layer also improves the growing conditions for vegetation. 

    Download full text (pdf)
    fulltext
  • 5.
    Jama, Abdinur Ali
    et al.
    Pan African University, Algeria; Somali Water Development and Research Consulting Firm, Somalia.
    Mourad, Khaldoon A
    Pan African University, Algeria; Lund University.
    Water Services Sustainability: Institutional Arrangements and Shared Responsibilities2019In: Sustainability, E-ISSN 2071-1050, Vol. 11, no 3, article id 916Article in journal (Refereed)
    Abstract [en]

    Poor water services in developing countries after national conflict as a result of institutional setups and devastating infrastructures. This study assesses how institutional arrangements have affected the poor water services in Somalia, through thematic analyses. The huge gap in the literature about Somalia highlights the significant need of such research works and the originality of this paper. For this paper, different stakeholders were interviewed from seven zones of the city of Garowe. The results show that public private partnerships (PPP) play a vital role in providing drinking water. The results show that the institutions involved in the water sector in Puntland are not well organized. Roles and responsibilities were unclear, and different governmental institutions criticized each other for deliberately taking over others' responsibilities, leading to poor and over-priced domestic water quality. Most consumers cannot afford a drinking water supply to their homes, so they are forced to walk long distances and queue for a long time in order to access water. Our analysis shows that it will be difficult for Somalia to achieve Sustainable Development Goal six (SDG 6) (target one) under the current institutional arrangements. Institutional reforms are recommended in the water sector in order to achieve SDG 6 (Target one), and to ensure safe drinking water in Puntland by 2030.

    Download full text (pdf)
    fulltext
  • 6.
    Järlskog, Ida
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Strömvall, Ann-Margret
    Chalmers University of Technology.
    Magnusson, Kerstin
    IVL, Swedish Environmental Research Institute.
    Galfi, Helén
    Sustainable Waste and Water, City of Gothenburg.
    Björklund, Karin
    Kerr Wood Leidal Associates Ltd.
    Polukarova, Maria
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Garção, Rita
    NCC Infrastructure.
    Markiewicz, Anna
    Chalmers University of Technology.
    Aronsson, Maria
    Urban Transport Administration, City of Gothenburg.
    Gustafsson, Mats
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Norin, Malin
    NCC Infrastructure.
    Blom, Lena
    Chalmers University of Technology.
    Andersson-Sköld, Yvonne
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Traffic-related microplastic particles, metals, and organic pollutants in an urban area under reconstruction2021In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 774, article id 145503Article in journal (Refereed)
    Abstract [en]

    In urban environments, particularly areas under reconstruction, metals, organic pollutants (OP), and microplastics (MP), are released in large amounts due to heavy traffic. Road runoff, a major transport route for urban pollutants, contributes significantly to a deteriorated water quality in receiving waters. This study was conducted in Gothenburg, Sweden, and is unique because it simultaneously investigates the occurrence of OP, metals, and MP on roads and in stormwater from an urban area under reconstruction. Correlations between the various pollutants were also explored. The study was carried out by collecting washwater and sweepsand generated from street sweeping, road surface sampling, and flow-proportional stormwater sampling on several occasions. The liquid and solid samples were analyzed for metals, polycyclic aromatic hydrocarbons (PAH), oxy-PAH, aliphatics, aromatics, phthalates, and MP. The occurrence of OP was also analyzed with a non-target screening method of selected samples. Microplastics, i.e. plastic fragments/fibers, paint fragments, tire wear particles (TWP) and bitumen, were analyzed with a method based on density separation with sodium iodide and identification with a stereo microscope, melt-tests, and tactile identification. MP concentrations amounted to 1500 particles/L in stormwater, 51,000 particles/L in washwater, and 2.6 × 106 particles/kg dw in sweepsand. In stormwater, washwater and sweepsand, MP ≥20 μm were found to be dominated by TWP (38%, 83% and 78%, respectively). The results confirm traffic as an important source to MP, OP, and metal emissions. Concentrations exceeding water and sediment quality guidelines for metals (e.g. Cu and Zn), PAH, phthalates, and aliphatic hydrocarbons in the C16–C35 fraction were found in most samples. The results show that the street sweeper collects large amounts of polluted materials and thereby prevents further spread of the pollutants to the receiving stormwater. © 2021 Elsevier B.V.

    Download full text (pdf)
    fulltext
  • 7.
    Mourad, Khaldoon A
    et al.
    Lund University, Sweden.
    Berndtsson, Justyna C
    Lund University, Sweden.
    Berndtsson, Ronny
    Lund University, Sweden.
    Potential fresh water saving using greywater in toilet flushing in Syria2011In: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 92, no 10, p. 2447-2453Article in journal (Refereed)
    Abstract [en]

    Greywater reuse is becoming an increasingly important factor for potable water saving in many countries. Syria is one of the most water scarce countries in the Middle East. However, greywater reuse is still not common in the country. Regulations and standards for greywater reuse are not available. Recently, however, several stakeholders have started to plan for greywater reuse. The main objective of this paper is to evaluate the potential for potable water saving by using greywater for toilet flushing in a typical Syrian city. The Sweida city in the southern part of Syria was chosen for this purpose. Interviews were made in order to reflect the social acceptance, water consumption, and the percentage of different indoor water uses. An artificial wetland (AW) and a commercial bio filter (CBF) were proposed to treat the greywater, and an economic analysis was performed for the treatment system. Results show that using treated greywater for toilet flushing would save about 35% of the drinking water. The economic analyses of the two proposed systems showed that, in the current water tariff, the payback period for AW and CBF in block systems is 7 and 52 years, respectively. However, this period will reduce to 3 and 21 years, respectively, if full water costs are paid by beneficiaries. Hence, introducing artificial wetlands in order to make greywater use efficient appears to be a viable alternative to save potable water.

  • 8.
    Mourad, Khaldoon
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Nordin, Lina
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Andersson-Sköld, Yvonne
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Assessing flooding and possible adaptation measures using remote sensing data and hydrological modeling in Sweden2022In: Climate Risk Management, E-ISSN 2212-0963, Vol. 38, article id 100464Article in journal (Refereed)
    Abstract [en]

    Recently, Europe is experiencing more frequent and greater floods compared to the last 500 years due to climate change among other factors. This has increased the associated risks, especially in urban areas, which poses a great challenge to all stakeholders. To protect traffic networks from possible floods, this paper uses QGIS, remote sensing data, and HEC-HMS model to assess flooding events and possible adaptation measures. Two case studies have been taken; 1) a 60-mm rainstorm that occurred in 2012 on a main road in the Northern part of Sweden (NB)); and 2) a 35-mm rainstorm that occurred in 2019 in the Southern part of Gothenburg (GO). The resulting flood hydrographs show that the peak reached are 0.5 m3/s and 3.8 m3/s in GO and NB, respectively. To adapt to these flood events, four adaptation measures were assessed namely afforestation, permeable pavements & green roofs, multi-use detention basins and culvert installation considering food production, biodiversity, prosperity, and the environment. The study has shown that afforestation is an effective flood risk mitigation measure to handle both moderate and extreme rain events. Well-maintained permeable surfaces and green roofs are effective in reducing flooding due to moderate rainfall, but not in reducing the impacts of extreme rainfall events. Well-designed multi-functional detention basins are good flood protection measures, however, if they are not well-maintained, their efficiency may be reduced by up to 90 %. Culverts are effective for frequent and limited rain events but extreme rain events may even increase flood risk and thereby contribute to damaging the infrastructure.

    Download full text (pdf)
    fulltext
1 - 8 of 8
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf