Clean water is a vital concern as many parts of the world struggle with its availability. Kenya is a prime example of a country on the edge. Kenya’s people have long struggled with lack of availability of fresh water creating hazardous health conditions. According to the World Bank, the country’s population is well over 43 million people. The country is one of the (more…)
NanoH2O is a Los Angeles-based startup that has developed a new membrane material for use in reverse osmosis (RO) desalination. While RO is an established technology, its economic viability hinges on the properties and performance of the membrane.
Irrigation pumps powered by clean renewable energy, such as solar pumps, could solve both the economic and environmental dilemma: they don’t emit greenhouse gases, and their fuel is free. But renewable-powered pumps have remained a marginal technology. There is currently no such pump available on the market that is tailored (more…)
Clean drinking water is often an overlooked privilege in first world countries. However, in areas such as the rural villages of the Yucatan Peninsula, potable water is at least a day’s drive away and costs more than local residents can afford.
MIT researchers have recognized this problem and (more…)
Despite decades of efforts that have dramatically improved access to clean water in India, more than 140 million people there still drink water contaminated by bacteria, chemicals, and other pollutants. Many of those Indians live in remote villages where it is not economically feasible to build infrastructure to filter water. (more…)
Usually we think of demolished concrete walls and floors as environmental contaminants, but in fact this material may turn out to be a valuable resource in nature protection work. This is the conclusion from researchers from University of Southern Denmark after studying the ability of crushed concrete to bind phosphorus. (more…)
This is the second in a two-part series on the water-energy nexus and this post focuses on the City of San Diego. The previous post, discussed the energy and greenhouse gases associated with moving water in the state of California. Generally, the water-energy nexus refers to how energy is consumed and embedded within the water use cycle. A common (more…)
Seeds and oils from the plant that produces the loofah sponge could help purify wastewater and prevent the spread of waterborne diseases in the developing world, according to a scientist speaking today at the 17th Annual Green Chemistry & Engineering Conference in Bethesda, Md. The low-cost, biodegradable seeds and substances made from oils of these seeds (more…)
Indian scientists have developed a filter system they say can provide clean water to rural families for less than $2.50 per year and help reduce incidences of diarrhea that cause tens of thousands of deaths in the developing world annually.
Today is World Environment Day, a date established in 1970 to raise awareness of pressing ecological issues. Every year, the United Nations Environmental Protection agency chooses a theme to promote on this date; in 2013 the theme is food waste. One third of the food produced globally is wasted and, with it, we waste a great deal of energy and water as well, since (more…)