solar water treatment Articles

  • Water and wastewater treatment for Solar industry

    Solar cells arc manufactured in a complex process thai requires enormous know-how. The objective is to produce panels with a high level of efficiency at low cost. To achieve this, different production processes are used. A fundamental distinction is made between solar cells on the basis of silicon wafers and thin-film cells, in which a special process is used to apply the photovoltaic layer onto ...


    By EnviroChemie GmbH

  • Household Water Treatment Options in Developing Countries: Solar Disinfection (SODIS)

    Household water treatment and safe storage (HWTS) interventions are proven to improve water quality and reduce diarrheal disease incidence in developing countries.  Five of these proven HWTS options – chlorination, solar disinfection, ceramic filtration, slow sand filtration, and flocculation/disinfection ...


    By IWA Publishing

  • Calibrating an optimal condition model for solar water disinfection in peri-urban household water treatment in Kampala, Uganda

    In low income settlements where the quality of drinking water is highly contaminated due to poor hygienic practices at community and household levels, there is need for appropriate, simple, affordable and environmentally sustainable household water treatment technology. Solar water disinfection (SODIS) that utilizes both the thermal and ultra-violet effect of solar radiation to disinfect water ...


    By IWA Publishing

  • Energy requirements for waste water treatment

    The actual mathematical models describing global climate closely link the detected increase in global temperature to anthropogenic activity. The only energy source we can rely on in a long perspective is solar irradiation which is in the order of 10,000 kW/inhabitant. The actual primary power consumption (mainly based on fossil resources) in the developed countries is in the range of 5 to 10 ...


    By IWA Publishing

  • Solar Detoxification

    Introduction: In this process, vacuum extraction is used to remove contaminants from soils. After condensation, contaminants are mixed with a semiconductor catalyst such (e.g., titanium dioxide), and fed through a reactor which is illuminated by sunlight. Ultraviolet light activates the catalyst, which results in the formation of reactive chemicals known as 'radicals'. These radicals are ...

  • Application of solar disinfection for treatment of contaminated public water supply in a developing country: field observations

    A sustainable and low-cost point-of-use household drinking water solar disinfection (SODIS) technology was successfully applied to treat microbiologically contaminated water. Field experiments were conducted to determine the efficiency of SODIS and evaluate the potential benefits and limitations of SODIS under local climatic conditions in Karachi, Pakistan. In order to enhance the efficiency of ...


    By IWA Publishing

  • Solar disinfection for the post-treatment of greywater by means of a continuous flow reactor

    SODIS (solar disinfection) is a low-cost alternative for water decontamination. The method is based on the exposure of water, contained in PET bottles, to direct sunlight, and mainly its UV-A and infrared components. The present research studied SODIS as a low cost alternative for the inactivation of Escherichia coli (E. coli) in treated greywater, aiming at its reuse for more ...


    By IWA Publishing

  • Drinking Water Plant with Solar Energy Supply

    AZUD DW DU1 ECO guarantees supply of high quality drinking water, which saves lives and prevents epidemics outbreaks. It gives an immediate solution, economic, ecological, and autonomous, without installation or maintenance costs. It provides an on-site water treatment, with no need of water and electric supply infrastructure. This self-energy plant has solar panels and two batteries that provide ...


    By Sistema Azud, S.A.

  • Solar-powered `water ATMs` deliver at the last mile

    Starting by redefining success, machines that vend clean water at low cost can solve India's drinking water problem, says entrepreneur Anand Shah. Despite decades of success at providing clean, safe water in developed countries, we have failed to ensure that people globally can ...


    By SciDev.Net

  • Houshold Water Treatment in Developing Countries: Ceramic Filtration

    Household water treatment and safe storage (HWTS) interventions are proven to improve water quality and reduce diarrheal disease incidence in developing countries.  Five of these proven HWTS options – chlorination, solar disinfection, ceramic filtration, slow sand filtration, and flocculation/disinfection – are widely implemented in developing countries.  Organizations ...


    By IWA Publishing

  • Impact of a natural coagulant pretreatment for colour removal on solar water disinfection (SODIS)

    Solar water disinfection (SODIS) is the process of treating microbiologically contaminated water in clear plastic bottles through exposure to sunlight. One of the major limiting factors of this treatment is source water quality. This work investigates the impact of source water colour on SODIS efficiency and evaluates a natural coagulant for colour removal. The ability of Moringa oleifera seed ...


    By IWA Publishing

  • Degradation of water polluted with used cooking oil by solar photolysis, Fenton and solar photo Fenton

    The degradation of used cooking safflower oil aqueous solutions by photolysis, Fenton, and photo Fenton under solar light is reported. The processes were carried out in a photochemical reactor with recirculation. Operating variables such as, pH, oil concentration and molar ratio of [H2O2]:[oil] were investigated to test their effects on the treatment efficiency of Fenton process. Also the iron ...


    By IWA Publishing

  • Influence of solar water disinfection on immunity against cholera – a review

    Cholera remains a problem in developing countries. This is attributed to the unavailability of proper water treatment, sanitary infrastructure and poor hygiene. As a consequence, countries facing cholera outbreaks rely on interventions such as the use of oral rehydration therapy and antibiotics to save lives. In addition to vaccination, the provision of chlorine tablets and hygiene sensitization ...


    By IWA Publishing

  • Large parabolic solar baskets

    I have recently designed and started manufacturing large parabolic solar baskets which will be proved to be the most revolutionary tool to produce local power in farms, in industries and in villages and to decentralize world economy from oil based to soil based. My solar baskets are one type of parabolic solar concentrators with short focal length which will be produced at the cheapest rates even ...


    By AADHUNIK GLOBAL ENERGY

  • Filtration & Chlorination Systems: Household Water Treatment Options in Developing Countries

    Five household water treatment and safe storage (HWTS)  options – chlorination, solar disinfection, ceramic filtration, sand filtration, and flocculation/disinfection – are proven to improve microbiological quality and prevent diarrheal disease in developing countries.  Other options – such as filtration & ...


    By IWA Publishing

  • Other Treatment Technologies

    Reuse/Recycle: Recovery and reuse technologies for energetic materials, including both explosives and propellants, should be considered at explosives waste sites for several reasons. First, new recovery methods and potential uses for reclaimed explosive materials are rapidly developing. Second, recovery/reuse options reduce overall remediation costs by eliminating destruction costs and allowing ...

  • Efficacy of an appropriate point-of-use water treatment intervention for low-income communities in India utilizing Moringa oleifera, sari-cloth filtration and solar UV disinfection

    This study investigated the efficacy of a POU water treatment system featuring sari-cloth filtration and/or Moringa oleifera coagulation as pre-treatments for solar disinfection (SODIS). Surface water from a peri-urban slum in Chennai, India, was treated and analysed for turbidity, organic content via chemical oxygen demand (COD) and microbiological quality via most probable number (MPN) ...


    By IWA Publishing

  • Health gains from solar water disinfection (SODIS): evaluation of a water quality intervention in Yaoundé, Cameroon

    In developing countries, the burden of diarrhoea is still enormous. One way to reduce transmission of pathogens is by water quality interventions. Solar water disinfection (SODIS) is a low-cost and simple method to improve drinking water quality on household level. This paper evaluates the implementation of SODIS in slum areas of Yaoundé, Cameroon. Promoters trained 2,911 households in the use of ...


    By IWA Publishing

  • The Potential of Solar-Powered Water Circulators to Help Solve Serious Water and Energy Problems in the U.S.

    With increasing human populations comes the corresponding increased need for improving water quality in lakes, wastewater ponds, potable water reservoirs, and other water storage facilities. Providing circulation within water reservoirs of all types has long been known to provide meaningful benefits, but the costs to achieve sufficient circulation through diffused aeration or mechanical mixers ...


    By Medora Corporation

  • Optimized Membrane Treatment Hydrocarbon Engineering

    Membrane processes are becoming popular in downstream processing plants for the production of boiler feed water, treatment and recycling of wastewater and integration into various processes. The design and efficiency, both hydraulically and in terms of energy, are improving rapidly Design changes such as heating feedwater through solar ponds can result in up to 35% reduction in energy ...


    By Kurita

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