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  • 1.
    Gustavsson, Eleonor
    et al.
    University of Skövde, School of Technology and Society.
    Berdén, Christer
    University of Skövde, School of Technology and Society.
    Water harvesting and purification in rural Uganda: A pilot study2010Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This report is a thesis in mechanical engineering with a focus on development assistance. The thesis was carried out in collaboration with the Gombe Youth Development Organization.

    The task was to develop an adequate system to collect, purify and store water in the two rural villages Gombe and Kayunga in Uganda. The system takes into account local weather, water quality, population, water consumption and types of water sources.

    The final system has a low manufacturing cost, simple maintenance, low operating cost, is electrical independent and can be manufactured and repaired with local available components.

    The report presents various types of sources of water and purification of varying suitability for these conditions. The report also includes operation and maintenance manual and an approximate budget.

    The result of this work is a combined system of rainwater harvesting, flocculation and one "up flow" rapid sand filter with built-in storage tank. Given that only rainwater collection is not enough to cover a normal sized family of 10 individuals consumption of water, due to this water from natural sources is also used.

  • 2.
    Nawani, Neelu
    et al.
    Microbial Diversity Research Centre, Dr D Y Patil Biotechnology and Bioinformatics Institute, Dr D Y Patil Vidyapeeth, Pune, India.
    Rahman, Aminur
    University of Skövde, School of Bioscience. University of Skövde, The Systems Biology Research Centre.
    Nahar, Noor
    University of Skövde, School of Bioscience. University of Skövde, The Systems Biology Research Centre.
    Saha, Anandakumar
    Department of Zoology, University of Rajshahi, Bangladesh.
    Kapadnis, Balasaheb
    Department of Microbiology, Savitribai Phule University of Pune, Pune, India.
    Mandal, Abul
    University of Skövde, School of Bioscience. University of Skövde, The Systems Biology Research Centre.
    Status of metal pollution in rivers flowing through urban settlements at Pune and its effect on resident microflora2016In: Biologia (Bratislava), ISSN 0006-3088, E-ISSN 1336-9563, Vol. 71, no 5, p. 494-507Article in journal (Refereed)
    Abstract [en]

    This study illustrates the sporadic distribution of metals in fluvial systems flowing from catchments to urban settlements. This is a detailed study prognosticating the deteriorating quality of rivers at specific locations due to metal pollution. Heavy metals like cadmium, lead, nickel and mercury are prominent in industrial sector. Contour plots derived using spatial and temporal data could determine the focal point of metal pollution and its gradation. Metal values recorded were cadmium 157 mg/L, lead 47 mg/L, nickel 61 mg/L and mercury 0.56 mg/L. Prokaryote diversity was less in polluted water and it harboured metal tolerant bacteria, which were isolated from these polluted sites. Actinomycetes like Streptomyces and several other bacteria like Stenotrophomonas and Pseudomonas isolated from the polluted river sites exhibited changes in morphology in presence of heavy metals. This stress response offered remedial measures as Streptomyces were effective in biosorption of cadmium, nickel and lead and Stenotrophomonas and Pseudomonas were effective in the bioaccumulation of lead and cadmium. The amount of 89 mg of lead and 106 mg of nickel could be adsorbed on one gram of Streptomyces biomass-based biosorbent. Such biological remedies can be further explored to remove metals from polluted sites and from metal contaminated industrial or waste waters.

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