Atmospheric Water Articles

  • Scarcity to solution: perceived reasons for safe drinking water scarcity and local coping responses in a coastal village of Bangladesh

    People are directly and indirectly exposed to changing weather patterns through changes in the quality of water, air, and food changes in ecosystems, agriculture, industry, human settlements and the economy. Hence, this study explored local perceived reasons for safe drinking water scarcity and under such circumstances the coping responses in their region. This is a descriptive study based on ...


    By IWA Publishing

  • OTEC in Paradise: The Philippines

    Paradise Legend has it that the Republic of the Philippines was born when the gods tossed 7,100 pearls into the ocean and islands popped up. Centrally located in Southeast Asia – just North of Australia and Indonesia, South of Japan and China, and East of Thailand and Singapore – the Philippines are considered by many to be the gateway to and from the Pacific. With ...

  • Evaluation of treatment and disinfection of water using cold atmospheric plasma

    In this paper, the disinfection of water is investigated using plasma spark treatment and the results are compared with conventional techniques. Inactivation of the Enterococcus faecalis and Escherichia coli bacteria is considered in the treatment process of water by the plasma spark. For this purpose, many physical and chemical parameters of water are measured and the ...


    By IWA Publishing

  • Water and your health fact sheet

    Water is a vital nutrient, essential to every single chemical process that occurs in our bodies. Water makes up two-thirds of the human body, and 75 percent of the human brain is water. Staying adequately hydrated allows our bodies to function as best they can, yet nearly 75 percent of Americans are chronically dehydrated without ever knowing it. Everyone understands the importance of drinking ...


    By Kinetico International

  • Day Trip to Porterville

    As a whole, EcoloBlue‘s mission is to provide safe and clean drinking water to those who do not have it. That’s the bottom line. And what is one of the worst hit areas in California? East Porterville. One of our Sales Representatives, Dexter Fernandez, and myself, Heather Jepsen (Operations Manager), decided to take a road trip down to Porterville ...


    By EcoloBlue

  • Comparative investigation of artificial neural network learning algorithms for modeling solar still production

    Three artificial neural network learning algorithms were utilized to forecast the productivity (MD) of a solar still operating in a hyper-arid environment. The learning algorithms were the Levenberg–Marquardt (LM), the conjugate gradient backpropagation with Fletcher–Reeves restarts, and the resilient backpropagation. The Julian day, ambient air temperature, relative humidity, wind speed, ...


    By IWA Publishing

  • The impact of atmospheric wet deposition on roof runoff quality in an urbanized area

    Understanding the sources of chemical components in roof runoff can help to prevent water quality problems in rooftop rainwater harvesting. To identify the contribution of wet deposition to the mass of components in roof runoff, the samples from air, rainwater, dust buildup and roof runoff were collected from an urban site in Shenzhen of China in 2011–2012. The results indicate that: (1) wet ...


    By IWA Publishing

  • EcoloBlue Emergency A.C.E. Container - Water From Air

    At EcoloBlue, we are trying to raise awareness about our All Contained Emergency (A.C.E. Container) solution in a 40ft container. It is a self contained, powered, water generation, and bottling system (600 to 1000 260ml pouches per hour) that provides up to 2,000 liters of pure drinking water daily from the Humidity in the Air. EcoloBlue’s A.C.E. Container is designed for solutions such as ...


    By EcoloBlue

  • Quebec recovers heat energy from sewage in Baied`Urfe

    Energy recovery from municipal sewage and greywater offers cities a new reliable resource.  Erwin Schwartz of DDI Heat Exchangers Inc. reports on a novel application of rectangular, wide-gap heat exchangers that has worldwide potential. The Canadian company DDI Heat Exchangers Inc. installed, with the support of the Quebec provincial government and municipal sewage authority, the first ...


    By DDI Heat Exchangers Inc.

  • Implementation of a two-way coupled atmospheric-hydrological system for environmental modeling at regional scale

    This work describes the two-way coupling performed between the regional atmospheric model Brazilian Regional Atmospheric Modeling System (BRAMS) and the hydrological model MGB-IPH. As a first step of the atmosphere-hydrology coupling, only the water balance variables were coupled. Differences in temporal and spatial scales between MGH-IPH and BRAMS were analyzed. By default, MGB-IPH has a daily ...


    By IWA Publishing

  • Water, water everywhere: But is there enough to drink?

    Original story at MIT News At MIT, experts address the challenges of supplying clean, safe water to a growing world population. The challenge of supplying clean, safe drinking water to an expanding world population comes down to money, MIT economist Franklin Fisher ...

  • Artificial destratification of Dipotamos reservoir in Northern Greece by low energy air injection

    The aims of this study were to investigate the Dipotamos water reservoir destratification process that used the low-energy method of air injection, and evaluate its potential to suppress the presence of nuisance compounds to within permitted drinking water limits. The selection of optimum design parameters for the application of air injection through perforated pipes was based on the Davis ...


    By IWA Publishing

  • Unfriendly cellar

    A client who had purchased a home noticed mold growing on furniture stored in their cellar as well as a musty smell when ever they were in the cellar. Investigation: The home is a sixty year old house nicely maintained and very clean with new paint and floor finishes on the inside. The heating system is a gas fired forced hot water system. There is no air conditioning. Relative humidity ...


    By Healthy Air Cape Cod

  • Measuring enthalpy to calculate efficiency

    Summary This application note describes in detail how you can calculate the gain in efficiency of a direct exchange air conditioning system before and after treatment with the SRA. The physics underlying the method are explained. Introduction Air comprises gasses and water moisture. The gasses are mostly nitrogen (78%) and oxygen (21%). The amount of water ...


    By Power Knot LLC

  • Temporal and spatial variation of atmospherically deposited organic contaminants at high elevation in Yosemite National Park, California, USA

    Contaminants used at low elevation, such as pesticides on crops, can be transported tens of kilometers and deposited in adjacent mountains in many parts of the world. Atmospherically deposited organic contaminants in the Sierra Nevada Mountains of California, USA, have exceeded some thresholds of concern, but the spatial and temporal distributions of contaminants in the mountains are not well ...


    By John Wiley & Sons, Ltd.

  • Wastewater Treatment for a soft drink processing company

    Description of the plant The wastewater from production and filling of mineral waters and soft drinks is pre-treated mechanically by a screen and buffered in an aerated mixing and balancing reactor. After equalization of flow and load the wastewater is given to the biological reactors where organic substances as sugar and other organic compounds are decreased by biological activity of ...

  • Why is Humidity / Moisture Control Important in a Fuel Cell?

    The root of all of this is that Nafion membranes must stay hydrated to function properly. If they are not fully humidified the conductivity decreases and therefore more of the electricity is converted directly to heat before it leaves the membrane (I2R heating). If it gets too dry it basically stops functioning as a proton transporter. ...


    By Fuel Cells Etc

  • Technical brief - membranes for airtight roof designs

    There are compelling energy saving reasons for the trend towards airtight un-ventilated roof designs. An average house loses about 25% of its heat via the loft space and roof. If a roof is made airtight, heat loss reduces to about 15% making a total energy saving of over 5%. According to tests carried out by the Building Research Establishment (BRE), total energy saving could even be as much as ...

  • Fate and transport evaluation of potential leaching risks from cadmium telluride photovoltaics

    Fate and transport analysis has been performed to evaluate potential exposures to cadmium (Cd) from cadmium telluride (CdTe) photovoltaics (PV) for rainwater leaching from broken modules in a commercial building scenario. Leaching from broken modules is modeled using the worst‐case scenario of total release of Cd, and residential screening levels are used to evaluate potential health impacts to ...


    By John Wiley & Sons, Ltd.

  • Crossville, TN, municipal drinking water

    The Situation: The City of Crossville, Tennessee, needed to address increasingly strict regulations on the use of gas chlorine to disinfect their community’s water. The Solution: By switching from gas chlorine to MIOX mixed oxidants, the City has reduced operational costs, improved residual durability, reduced byproduct formation, produced longer filter ...


    By MIOX Corporation

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