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Directory:Water

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We have to get it where we can, right?
We have to get it where we can, right?

Directory of technologies related to water, including methods of obtaining potable water, using water as fuel, gray water recycling, etc.

Contents

Overview

  • Renewable Energy Brings Water to the World - In addition to providing pumping stations in remote areas, every day solar and wind energy systems are saving billions of gallons of clean water around the world and the opportunity exists to save much more water. (Renewable Energy Access; Aug. 23, 2005)

Technologies

For Health

Water as Fuel

See


Batteries

  • H2O Batteries and Products - e.g. Tango Group product line utilizes a water-powered battery that consists of two electrodes made of special alloys, which, when immersed in water, the resulting chemical reaction produces electricity. Simply refill the battery as the water evaporates - typically every 2 to 3 months. The battery has a minimum continuous life of 2 years.

Vehicles

Also: Directory:Running Vehicles on Water

  • Scientists Discover How to Make Robots Bounce on Water - One of the fastest moving insects in the world, the water strider, which can travel up to 100x its body length in one second, distributes its weight over a large surface area, but until now science has been baffled about how they jump onto water without sinking. (Environmental Graffiti; Dec. 9, 2007) (See Slashdot)
  • Water Car- Builder of the World's Fastest Amphibious Vehicles - Fiberglass amphibious vehicle, styled after the 2002 Convertible Camaro body style, and powered by a Turbo charged 2.5 Liter 300 HP Subaru engine, goes 125 mph on land, and 45 mph in the water.

Drinking Water Technologies

In addition to the sub-categories listed below, see also:


Water from Air

See: Directory:Water from Air - Methods of extracting water from air. (separate index page at PESWiki)

Image:Air to H2O 95x95.jpg Image:AirWaterCorp 95x95.jpg Image:Wataire_95x95.jpg Image:Whisson WO2006017888 crop 95x95.gif Image:XDOBS renewable cooling 95x95.jpg

Conservation

  • Cleaning up the laundry industry - The Xeros polymer pellets act like a magnet, and they draw the soiling and the dirt out of a small amount of water. The technology has already been proven in controlled lab experiments and has also been tested in commercial scale dry cleaning facilities. (CleanTech; June 9, 2008)
    • Nearly Waterless Washing Machine to Debut in 2009 - A new washing machine that uses just a cup of water, a pinch of detergent, and about 1,000 small plastic chips to clean clothes may be available for consumers in the UK next year. (PhysOrg; July 29, 2008)
  • Aquanotion - TwoFlush dual flush system converts the standard North American style toilet in to a water conserving, money saving TwoFlush toilet: a small flush for liquid waste and a big flush for solid waste. The system is an inexpensive, proven design that has been used in Europe and all over the world for years.
  • Conservation > 'Air shower' set to cut water use by 30 per cent - Scientists have developed a simple 'air shower' device which, when fitted into existing showerheads, fills the water droplets with a tiny bubble of air. The shower feels just as wet and just as strong as before, but now uses much less water. (LiveScience; Nov. 10) (See manufacturer CSIRO)
  • Air Conditioning Waste Water Recovery - Stiffler Scientific is undertaking a research project is to determine the feasibility and practicality of recovering waste water from residential air conditioning systems that would otherwise be discarded in a sewer system. (OSEN; Dec. 30) (See StifflerScientific.org)

Distillation

  • Slow Moving Water, Inc. - Company presents a floating barge with turbines around the perimeter to harness the energy of the water flowing by. Rather than try to enter the electricity utility business, they produce electricity by-products, such as hydrogen and distilled water.
  • Solaqua.com - SolAqua offers Solar Water Distillation products. These systems are sized for applications ranging from individuals to communities.
Kamalesh K Sirkar
Kamalesh K Sirkar
  • Better way to desalinate water discovered - Membrane distillation process uses waste heat or inexpensive fuel to heat the water forcing it to evaporate from the salt solution. The cleansed vapor then travels through nano-sized pore in the membrane to wind up condensed in the cold water on the membrane's other side. (PhysOrg; Feb. 9, 2006)

Desalination

  • A Low-Energy Water Purifier - Oasys estimates that engineered osmosis (not reverse osmosis), will cost just $0.37 to $0.44 per cubic meter, once fully scaled up, using one-tenth the energy needed to purify water, required by conventional systems using a pilot-scale plant to test the technology and producing one cubic meter of fresh water per day from either sea or brackish water. (MIT Technology Review; Jan. 8, 2009)
  • Solar powered water desalination - Spectra Watermakers' portable Solar Cube is powered by sunlight and wind, and can provide up to 3,500 gallons of clean drinking water per day from polluted water or salt water. It can also provide enough emergency electricity to refrigerate medical supplies or power communications equipment. (Inside Greentech; Mar. 7, 2007)
  • Deluge - Has developed a new way to economically take salt out of water, and it depends on a readily available resource - hot water.
  • Top 100 / Featured / Videos: River / Water >
    Video: Markovic Self-Propelled (SP) River Pump - We've produced a new video about Vladimir Markovic's Top 100 river pump -- a very clever, simple, robust design now going into production that can be used to pump water, generate electricity, desalinate water, all from slow-moving water without the need to build a dam. (YouTube: PESNetwork; Jan. 22, 2009)
  • Seawater Brine Recycling Technology - IES Tech's recycling of seawater brine (industrial waste) eliminates the pollution resulting from desalination plants, double the drinking water quantity and receive the valuable minerals as magnesium and high quality table salt. The technology is fully developed and tested, a demo unit is in function showing all the aspects of this technology.
  • Wave-Powered Desalination - Design harnesses the renewable energy of waves to produce fresh water. Production versions of the "desalination ducks" would be about 10 meters in diameter and 20 meters long. Each would supply water for more than 20,000 people. (New Scientist Tech; Nov. 7, 2006) (See Slashdot discussion
  • Cheaper, better water desalination using 'forward osmosis' - A forward osmosis system developed at Yale causes water flow through a membrane with a high-concentration solution of ammonia (NH3) and CO2 on the gathering side, which are then boiled off. (Environmental Science and Technology; May 3, 2006)
  • Lebanon may start using the sun to get fresh water - Lebanon might soon look toward the sky for its freshwater but the drops won't be coming from the clouds. Project in which a desalination plant will be designed, powered by a solar pond along the seashore line. (Daily Star, Lebanon; Jan. 26, 2005)
  • Desalination Taps Geothermal, Solar Thermal - A Phoenix inventor said he has developed a new way to economically take salt out of water, and it depends on a readily available resource - hot water. (PESWiki; Sept. 7, 2004)
  • Sea Solar Power - Ocean Thermal Electric Conversion company technology includes a water desalinization byproduct of millions of gallons per day. (PESWiki)
  • O/U Water Desalinization > Clean Water Products - patented technology by Dr. Cluff can desalinize water without using chemicals at just $300 / acre-foot, producing 60,000 gallons per day, recovering salt and minerals valued at up to $600 per acre-foot.
  • Cheap Drinking Water from the Ocean - Carbon nanotube-based membranes, being developed by the U.S.' Lawrence Livermore National Laboratory, will dramatically cut the cost of desalination. Tiny sieve actually conveys water much faster than science would predict. (MIT Technology Review; June 12, 2006)
  • Oxen power desalination unit - Desalination unit in remote India is run with the help of a pair of oxen using an indigenously developed reverse osmosis membrane. (NewIndPress.com, Sept. 11, 2004)

Filtration

  • Ceramic Water Filters Win IWA Award for Cambodia - the International Water Association (IWA) awarded UNICEF and the Water and Sanitation Program with the 2008 Project Innovation Award Grand Prize for providing Cambodia with ceramic water filters. These water purification devices are made and distributed by Cambodian nationals, and have resulted in a 50 percent drop in diarrheal illnesses in the region since their implementation in 2002. (Inhabitat; March 9, 2009)
  • New technology for portable wastewater treatment unveiled - Nicknamed “DAAB” (Deployable Aqueous Aerobic Bioreactor), this new self-sustaining, portable, and “smart” wastewater treatment system offers a solution to wastewater treatment. The system is able to convert wastewater to EPA acceptable standards within 24-48 hours and being housed in a 40-foot-long shipping container makes it completely portable. (Gizmag; Nov. 16, 2008)
  • LifeStraw - Portable water purification tool cleanses surface water and makes it safe for human consumption using a halogen-based resin to kill bacteria, textile pre-filters to remove particles and active carbon to withhold parasites.
  • Converting Tailpipes into Water Fountains - Modified military Humvees, now in testing, turn diesel exhaust into fresh drinking water for soldiers. At the core is a heavy-duty carbon filter bed, engineered by LexCarb, that filters toxins from the exhaust stream. (Popular Science: Jan. 2006)
  • 'ESP Water Filter Products - There are multiple technologies currently used in stationary and portable water treatment, whether for home/office use or for camping. Some are common and some are new. Each is used to address a specific contaminant or water problem.
  • Make A Water Filter From Old Tires - Crumb rubber, chewed up old tires, is used on athletic tracks, playgrounds, and increasingly as an alternative to mulch. Now, Dr. Yuefeng Xie, associate professor of environmental engineering at Penn State Harrisburg, has found crumb rubber makes an excellent water filter. The rubber keeps the large particles out on top, and thus creates a much higher throughput. (TreeHugger; Nov. 21, 2006)
  • Clean Water with Nanofilters - Water can pass, while bacteria and viruses are blocked. Filters sturdy enough to be cleaned repeatedly, sterilized, autoclaved. (MIT Technology Review; Nov. 2004)

Purification

  • Watreco Vortex Generator - Building on nature’s own principles, Vortex Process Technology (VPT) used in the Vortex generator, builds on water’s own natural movement. The Vortex generator sets the water in a considerable swirl that changes its internal properties, purifying the water. "In Harmony with Nature" PDF (Watreco; Sept 14, 2008)
  • Water Companies Taking Cue From Nature - When it comes to water technology, nature appears poised to become a major player. Aquaporins sit inside channels in biological cells where water, salts and solids pour in, the aquaporin flips over, ejecting the impurities and allowing fresh water to pass through the cell. (GreenTech Media; Sept. 10, 2008)
  • LIFESAVER: World’s First Ultra Filtration Water Bottle - Lifesaver can filter out bacteria, viruses, parasites, fungi and all other microbiological waterborne pathogens. Fill it with water by unscrewing the base and dipping it in the nearest puddle or stream, screw the base back and use the pump to force the water through to a teat at the other end. (Inhabitant; May 29, 2008)
  • METROPOLIS NEXT GENERATION 2008 Winner Announced! - This year’s $10,000 prize was awarded to San Francisco based architect and CCA professor Eric Olsen for a "Solar Water Disinfecting Tarpaulin" that promises to provide portable and potable water anywhere that it is needed. (Inhabitat; May 5, 2008)
  • Forward osmosis filtration system - HTI have developed a forward osmosis membrane that allows water to pass through, yet blocks very small contaminants. This allows a pure drink to be created from highly turbid and toxic supply waters, even sea water. It is a passive system which harnesses the osmotic potential created by sugars and electrolytes, producing a dilute sports drink, not simply water. (GizMag; Oct. 15, 2007)
  • Difinitive Energy - AquaClean™ processes contaminated water with an electric arc (plasma) to produce clean, potable water which spontaneously creates a high energy, non-polluting, sustainable fuel (AquaLene®). The fuel is claimed to produce 3x more energy than is required to maintain the arc by powering a generator in a closed-loop process.
  • AquaStar - Portable Ultraviolet C-band Water Purifier can safely and quickly treat a liter of water in about a minute, using a pair of standard camera batteries to generate ionizing radiation that quickly and effectively disrupts the cellular chemistry of all known pathogens.
  • Ozone Generators and Advanced Oxidation Processes - Spartan Environmental Technologies supplies ozone generators and other advanced oxidation processes for industrial and municipal water and wastewater treatment applications such as disinfection and for the removal of color, taste, odor, iron, manganese, COD, TOC and specific organic compounds. These processes make water safe to drink, recycle or discharge into the environment. Ozone is generated on site and after use decomposes to oxygen. This eliminates the need to store chemicals on site and does not introduce toxic chemicals into the water.
Michael Wong
Michael Wong
  • Water Purification via Nano-Gold - Gold spheres, measuring 15 atoms in diameter, mixed with Palladium, and acting as a detergent, hold promise for cleaning up toxic waste more inexpensively and much faster than present methods. (Smithsonian Magazine; Oct. 2007)
  • New Plastic to Cut CO2 Emissions and Purify Water - Scientists have created a plastic material that mimics pores found in plants and is exceptionally efficient. It can separate carbon dioxide from natural gas a few hundred times faster than current plastic membranes. (Slashdot; Oct. 15, 2007)
  • Ray of light for water industry - University of Aberdeen scientists developing new technology that uses sunlight to treat dirty water and create electricity simultaneously. Three industrial partners develop novel technology for breaking up pollutants found in all types of water supplies. (PhysOrg; UK; April 28, 2005) (Renewable Energy Access; May 3, 2005)
  • Solar Mobile Critical Response Water Unit Sent to Mississippi - WorldWater & Power Corp., developers of proprietary high-powered solar technology, is sending its trailer-mounted, solar-powered electrical water pumping and purification system to help the relief efforts for hurricane victims in the devastated Gulf Coast area. (PrimeZone; Oct. 12, 2005)
  • Zip Project - Zero Impact Platform project was created to handle waste cycle and water cycle management with clean, renewable technologies available, as well as to support research and development into the same. (PESWiki; Aug. 5, 2005)
Dean Kamen
Dean Kamen
  • Segway creator unveils his next act - Inventor Dean Kamen wants to put entrepreneurs to work bringing water and electricity to the world's poor. 1 kW generator uses anything that burns, including cow dung. Water purifier makes 1,000 liters of water per day. (CNN; Feb. 16, 2006) (See Slashdot discussion)

Update: Deka Research Stirling engine

(5.47 Minutes) Dean Kamen's Water Machine
Tv appearance of Dean Kamen showing his machine that will change the world (You Tube March 21, 2008

  • New Earth Systems CentrO3fier - Modular treatment system highly effective at removing wide range of contaminants including ammonia, arsenic, heavy metals, toxic organics, phosphates, and many others. Second generation completed; preparing for market.

Testing

  • Avantis - "Water facility efficiency is drowning in severe budget cuts, intensified regulation, health and quality concerns, as well as outdated equipment and an aging work force. Fortunately, there’s Avantis -- today’s most effective enterprise asset management solution that can reduce the risk of implementation with pre-defined work processes and best practices."
  • Testing the Waters - Sensicore is using lab-on-a-chip technology to test water quality rapidly. (MIT Technology Review; Aug. 31, 2005)


Water Heaters

See


Water Softeners

See Directory:Home Generation:Water Softener


Gray Water

  • Grey water recycling by Brac Systems - Collects water from shower drains, bathtubs and laundry, then filters and pumps it through a dedicated supply line to the toilet tanks for flushing, reducing average household water consumption by a third. It is designed into the plumbing of new construction and existing residential homes.
  • Energy Recovery - The PX Pressure Exchanger™ recovers energy from the high-pressure waste stream of seawater desalination reverse osmosis systems at up to 98% efficiency. It provides the most energy cost savings in the market -reducing power costs by up to 60%. (Thanks Daniel Bowers)
  • Waterwall Solutions - The Waterwall is a modular rainwater storage system for urban areas that can be connected to make the most of your valuable space, made from stabilised food grade plastic. It can be used as a fence, a feature, an under-eave tank or purely as water storage in a narrow out of the way space.


Projects

  • Charity:Water - charity: water funds a range of water solutions. These solutions include hand-dug wells, deep wells (boreholes), rehabilitations, spring protections, rainwater harvesting schemes, and biosand filters. In 2008, charity: water added projects in India, Bangladesh and Honduras.

Resources

  • SODIS - Solar Water Disinfection links.
  • OnsiteWater.com - Journal for decentralized wastewater treatment solutions.

See also

- Other Directory listingsLatestA-IJ-RS-ZTreeNews
- PESWiki home page

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