water from air Articles

  • Building Energy Modeling 101: HVAC Design and Operation Use Case

    A great deal of energy use in buildings goes toward heating, ventilation, and air-conditioning (HVAC). In 2015, HVAC consumed 15.5 quads. The first step in reducing HVAC energy use is reducing heating and cooling load—i.e., the amount of heat that needs to be added to or removed from a building—typically by reducing heat from equipment and lighting; minimizing unnecessary ...


    By US Department of Energy

  • Maintaining a pressure reducing valve: 5 things to check

    Like your car, your body and nearly every appliance you own, control valves require regular maintenance to continue working efficiently. However, due to budget and time constraints, we don’t always give our valves the TLC they need to perform at their best. Unfortunately, ignoring pressure reducing valves can mean serious ...


    By Singer Valve Inc.

  • Turning waste into wattage

    How we are helping to meet the growing demand for waste energy recovery It’s a sign of the times that more and more companies and organisations are now looking at ways to capitalise on the waste material their production process produces rather than having to pay a third part to take it away for them.  One reason of course is the high cost of scrappage.  Another is the ...


    By Todaysure Limited

  • 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

  • Recovering Valuable Chemicals from Air Emissions

    Air emissions in many cases are a waste of valuable natural resources that should have become useful chemicals. In some cases the economic payback from recycling/reuse of air emissions can be almost as much a motivation to control air pollution as government regulations. Examples of recycling and reuse of air emissions are sulfur oxides emissions that can be made into sulfuric acid, cement ...


  • Removal of radioactive Cs from gravel conglomerate using water containing air bubbles

    Remediation of sites contaminated with radioactive material such as Cs is important because of the risk posed to human health. Here, we report the effectiveness of water containing air bubbles with a diameter around 100 nm (nanobubbled water, NB water) for the removal of radioactive Cs. Laboratory experiments confirmed that NB water is more effective than purified water and as effective as water ...


    By IWA Publishing

  • Experimental study of the impacts of external disturbances on N2O emission from water to air

    To obtain a comprehensive understanding of nitrous oxide (N2O) emission from water to air, the impacts of external disturbances including wind, stirring and aeration on N2O emissions were investigated by continuously monitoring N2O concentration variations in water. The volumetric mass transfer coefficient of N2O from water to air ...


    By IWA Publishing

  • Producing drinking water from seawater with waste energy

    German firm Taprogge and ESACO (Vietnam) are jointly investing in seawater desalination technology in the country. The Saigon Times Daily had a talk with Detlef Taprogge, CEO of Taprogge, about the Taprogge Terrawater Technology during a recent demonstration of a system using this tech in HCMC’s Can Gio District. Excerpts: The Saigon Times Daily: What is the specific of this ...


    By Terrawater GmbH

  • From air conditioning to urban planning, defaults and standards create dysfunction by design

    How can we stop outdated assumptions from forcing us to waste? Personal heaters are a summer survival tool for many office workers chilled to the bone by hyperactive ventilation systems — an act of self-defense against an epidemic of overcooling that is wasting energy and confounding comfort in not only offices but also large shops, schools and other buildings. An audit ...


    By Ensia

  • Air temperature retrieval from remote sensing data based on thermodynamics

    A new approach to retrieving air temperature from land surface temperature is presented. The new method is based on thermodynamics. Two important parameters, namely crop water stress index and aerodynamic resistance, were used to build a quantitative relationship between the land surface temperature and the ambient air temperature. The method was applied using MODIS satellite data for a location ...


    By Springer

  • Controlling Odors from Waste Water Treatment Plants

    INTRODUCTION In recent years, there is growing public awareness of odors from waste water treatment plants, which mainly stems from the following observed trends: The public is less tolerant of objectionable odors from waste water treatment plants; Many waste water treatment plants have seen residential, commercial, or other developments established near the facility ...


    By PRD Tech, Inc.

  • Monitoring Water Quality Runoff From a Coalmine

    Intelligent Monitoring Solutions from dataTaker CAS DataLoggers provided the intelligent datalogging solution for an open-cut coalmine managing a high salinity water runoff into local retaining dams. The water from these dams could only be released into the local river system when it was of sufficient quality to have no effect on the irrigation of the surrounding farming district. ...


    By CAS DATALOGGERS

  • Getting an air source heat pump from Better Planet – from first discussion to finished project

    Initial contact The initial contact is often on the phone and we try to establish if an air source heat pump makes sense from a financial and technical point of view. Heat pumps makes sense for most new built projects. For retrofits, heat pumps makes most sense for properties not connected to the gas grid. If you are connected to the gas grid, ...


  • Ten top growth markets in air, water and energy

    For suppliers of products and services for the air, water, and energy industries there are some substantial double-digit growth opportunities. Ten of these have been identified as the most promising by the McIlvaine Company These are ranked based on potential market size. #1 Shale Gas There is a very large continuing investment in extraction of gas from shale in the U.S. The ...


    By The McIlvaine Company

  • A Smelly Situation: Snuffing Out H2S in Water and Air

    Untitled Document Summary: Dealing effectively with hydrogen sulfide (H2S) in groundwater presented a major challenge for coastal Indian River County, Fla. Stripping the odorous ...


    By Calgon Carbon Corporation

  • Air pollution from air stripping of industrial VOCs: a mitigating alternative using renewable energy

    Four reaction beds (glass, Plexiglas, concrete and metal) exposed to solar (UV) light and coated with titanium dioxide were used for testing the degradation of Dichloroacetic Acid (DCA) in water, with concentrations of 130 ppmv, 390 ppmv and 650 ppmv. The glass-bed reactor showed the highest photonic efficiency followed by Plexiglas, concrete and metal. The 390-ppmv DCA gave the highest rate of ...


    By Inderscience Publishers

  • Air/water cleaning for the control of particulate fouling

    Fouling of feed spacers in spiral wound membrane elements due to particulate fouling and biofouling is one of the main operational problems of nanofiltration or reverse osmosis membrane plants. Removal of particulate fouling from spiral wound membrane elements is investigated using frequent air/water cleaning (AWC). In a pilot setup two spiral wound elements were operated in parallel and were fed ...


    By IWA Publishing

  • Importance of Air & Water Testing in Indoor Pools

    Have you ever wondered why your eyes hurt or why you have a cough after swimming at an indoor pool? We all assume that it’s from too much chlorine in the pool but that is false! If the pool staff doesn’t regularly test and monitor both the air and water indoors, the environment becomes very toxic and unsafe to everyone in the building. Water is an essential ingredient for all life as ...

  • China’s response to air pollution poses threat to water

    Record-setting levels of smog this week shut down Harbin, a city of 11 million people in northeast China. Officials blamed increased coal consumption during the first days of winter heating, underscoring the urgency of the China State Council’s ...

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