-
Water
Well diggers in Bangladesh will soon be able to take advantage of a cell phone-based data system, developed at the Earth Institute, to target safe groundwater aquifers for installing new wells that are not tainted with arsenic
-
-
Water
Drinking water taken from a deep aquifer protected by a semi-permeable layer of rock should be safe because the water is protected from many contaminants, including viruses — but is it safe? University of Wisconsin scientists find virus particles in many deep Madison, Wisconsin water wells, raising questions about how viruses, which should not survive more than two years underground, reached so deep and survive for so long
-
-
Water
More than 800 million people around the world lack access to clean water; the water available for people to drink in many developing countries has not been treated to remove contaminants, including pathogenic microorganisms; half of the world’s hospital beds are occupied by people who are sickened by the water they drink; Purdue University researchers have invented a water-disinfection system that uses the sun’s ultraviolet radiation to inactivate waterborne pathogens
-
-
Water
Analysts are predicting that the global market for water could grow dramatically over the next two decades, with some projecting a $1 trillion market in 2020; “Water is the fastest growing market at the moment, with a size of $500 billion globally,” said Harri Kerminen, the president and CEO of Finnish chemical firm Kemira
-
-
Water
Scientists at Kansas State University and seven other collaborating institutions were recently awarded $3.3 million from the National Science Foundation (NSF) to conduct a-large scale study of how stream organisms influence water quality across North America
-
-
Infrastructure protection
The head of the U.S. Cyber Command said that cyber attacks on the United States are escalating from large-scale theft and disruption of computer operations to more lethal attacks that destroy systems and physical equipment
-
-
Water
South Florida’s water supply is becoming increasingly endangered by saltwater that is steadily seeping in from the ocean and contaminating supplies; despite the best efforts of local communities to stop the problem, saltwater intrusion is spreading
-
-
Infrastructure
Engineers have pioneered new methods for detecting leaky pipes and identifying flood risks with technologies normally used for computer game graphics and Artificial Intelligence; these techniques could help to identify water supply and flooding problems more quickly than ever before
-
-
Water
Almost 100 million people in developing countries are exposed to dangerously high levels of arsenic in their drinking water, unable to afford complex purification technology; scientists developed a simple, inexpensive method for removing arsenic based on chopped up pieces of ordinary plastic beverage bottles coated with a nutrient found in many foods and dietary supplements
-
-
Water
New research shows that wastewater recycling processes may generate more greenhouse gases than traditional water-treatment processes; still, there are good reasons to continue keep wastewater recycling among the water-resource tools for urban areas
-
-
Water
Thermopower waves in thermoelectric materials can convert heat from solid fuels into electrical energy, in research that advances the vision of “smartdust” and other truly autonomous micro and nanomachines; “smartdust” systems are micro-electromechanical systems that are networked wirelessly for sensing and receiving data, for example testing pH of soil in large agricultural fields or quality of water reserves
-
-
Water
A lot of the water we use daily goes to waste — whether it goes down drains, sewers, or toilets, much of it ends up at a wastewater treatment plant where it undergoes rigorous cleaning before it flows back to the environment; researchers are looking at processes which would turn wastewater into energy
-
-
Water
Parts of the Danish capital Copenhagen were without clean drinking water Saturday after high levels of the E.coli bacteria were detected in the municipal tap water system
-
-
Water
A fuel cell system that can generate electricity from organic compounds and clean up wastewater at the same time has been developed by scientists in China; the cell uses light energy to degrade organic compounds in wastewater, generating electrons that pass through to the cathode, which converts the chemical energy into electrical energy
-
-
Water
A third of the world’s population — more than two billion people — lives without access to clean drinking water, and studies show that the situation will only get worse; a French innovator has an idea: towing icebergs from the Greenland and Antarctica to regions most in need of fresh water; a computer simulation shows this solution to be viable and affordable
-
-
Water
A revolutionary low-cost technique that uses sunshine to provide safe drinking water; solar disinfection (SODIS) of drinking water is an effective way of preventing water-borne diseases such as cholera, dysentery or polio — especially important in developing countries, where safe drinking water is often a precious rarity
-
-
Water
Over one-third of the world’s population already lives in areas struggling to keep up with the demand for fresh water. By 2025, that number will nearly double; a new study argues that seawater desalination should play an important role in helping combat worldwide fresh water shortages once conservation, reuse, and other methods have been exhausted
-
-
Detecting contamination
Materials scientists and applied physicists have invented a new device that can instantly identify an unknown liquid; the 3D-nanostructured chip offers a litmus test for surface tension (and doubles as a carrier for secret messages); the researchers are currently developing more precisely calibrated chips and conducting field tests with government partners for applications in quality assurance and contaminant identification
-
-
Infrastructure protection
In 1993, a cryptosporidiosis outbreak in Milwaukee contaminated the city’s water supplies, hastened the deaths of dozens of citizens, made more than 400,000 residents ill, and cost more than $96 million in medical expenses and lost productivity; Sandia’s CANARY software protects water utilities from terrorist attacks and contaminants
-
-
Water
A new biological water purification facility developed by Siemens generates enough methane gas to power its own operations; it also produces much less sludge than conventional systems; the test facility is mlocated in Singapore, and the city state is building a much larger pilot facility — one that will process 300 times more effluent than its predecessor, or about as much sewage water as is produced by around 1,000 people
-
The long view
Water Is the Other U.S.-Mexico Border Crisis, and the Supply Crunch Is Getting Worse
The United States and Mexico are aware of the political and economic importance of the border region. But if water scarcity worsens, it could supplant other border priorities. The two countries should recognize that conditions are deteriorating and update the existing cross-border governance regime so that it reflects today’s new water realities.