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Read the latest news, innovations, and technology advances in water around the globe…

What is Reverse Osmosis?

A semipermeable membrane is the substance used in all RO Membranes. Water enters the human body by passing through a semipermeable membrane in the digestive track.  The Membranes used for Reverse Osmosis are synthetic semipermeable membranes which allow water to pass through but filter out most contaminants. What is Osmosis? Osmosis is the natural movement of water molecules from a lower to a higher concentration of salt particles through a semipermeable membrane. However, when pressure is applied to the side of higher concentration of dissolved solids, there will be a greater amount of net movement to the lower concentration side.  This is Reverse Osmosis. The undesirable dissolved and suspended substances will not pass through the semipermeable membrane leaving the permeate or product water 99.99% pure H2O. For commonly used Reverse Osmosis terms click here RO TERMS Please comment below this article with an insight or question you have and fill in your name to receive future articles in your inbox.        ... read more

Dow invests in manufacturing facility for DOW FILMTEC RO elements in China

SHANGHAI, China — The Dow Chemical Company announced plans to invest in a world-class manufacturing facility for DOW FILMTEC™ reverse osmosis (RO) elements in Huzhou, China. The new facility will be online in 2013, according to a press release. “This investment is directly aligned to our growth strategy to maximize value as a leading science company, benefiting our customers in China and the China economy, while contributing to Dow’s global growth,” said Peter Sykes, president of Dow Greater China. “Dow Greater China is built on a solid foundation and we’re very confident about our ability to contribute to the China market and customer growth with a business focus which fits China’s 12th Five-Year plan.” The proposed facility would deliver local supply security of cutting-edge technology for water desalination and waste water reuse for potable, non-potable and industrial water serving China. The facility would also serve as a sourcing point for global demand, boosting supply of Dow’s world-class products worldwide. Additionally, these water technologies will deliver cost-savings through reduced energy usage and excellent operational efficiencies for global customers. The facility joins Dow’s ultrafiltration manufacturing facility in Huzhou and ion exchange resin facility in Qingpu, which supply global, market leading products. “Dow invests in manufacturing facility for DOW FILMTEC RO elements in China “Water Tech Online. Com”. 1/10/14 accessed.... read more

Clean Water Crisis

The water you drink today has likely been around in one form or another since dinosaurs roamed the Earth, hundreds of millions of years ago. While the amount of freshwater on the planet has remained fairly constant over time—continually recycled through the atmosphere and back into our cups—the population has exploded. This means that every year competition for a clean, copious supply of water for drinking, cooking, bathing, and sustaining life intensifies. Water scarcity is an abstract concept to many and a stark reality for others. It is the result of myriad environmental, political, economic, and social forces. Freshwater makes up a very small fraction of all water on the planet. While nearly 70 percent of the world is covered by water, only 2.5 percent of it is fresh. The rest is saline and ocean-based. Even then, just 1 percent of our freshwater is easily accessible, with much of it trapped in glaciers and snowfields. In essence, only 0.007 percent of the planet’s water is available to fuel and feed its 6.8 billion people. Due to geography, climate, engineering, regulation, and competition for resources, some regions seem relatively flush with freshwater, while others face drought and debilitating pollution. In much of the developing world, clean water is either hard to come by or a commodity that requires laborious work or significant currency to obtain. Water Is Life Wherever they are, people need water to survive. Not only is the human body 60 percent water, the resource is also essential for producing food, clothing, and computers, moving our waste stream, and keeping us and the environment healthy. Unfortunately, humans have... read more

A desalination boom in California could help it deal with ‘exceptional’ drought

What really happened to our tap and underground water sources? Adaptation to changing weather patterns is a principal driver that underpins a multi-decade opportunity when considering investments in the water sector. As the increasing unpredictability of weather patterns leads governments and municipalities to look at new water infrastructure investments, drought-ravaged California could be a large potential contributor to the 19% annual growth expectations in global desalination market. With an approximate global capacity of nearly 80m cubic meters per day, about 1% of fresh water consumed globally is derived from desalination. Traditionally this technique has been associated with the oil rich Gulf States such as the United Arab Emirates, Kuwait and Saudi Arabia, where low energy costs have driven thermal desalination which is based on evaporation and the subsequent condensation of the steam as potable water. Energy consumption, traditionally high with desalination, has been significantly reduced in the past two decades, partly due to the widespread uptake of reverse osmosis technology (RO). This process removes the salt by filtration, using membrane technology. RO now accounts for nearly 60% of global desalination capacity. The International Desalination Association (IDA) has challenged the industry to achieve a further reduction of 20% in energy requirements for seawater desalination by 2015 – to be achieved through a combination of the integration of renewable energy, the use of lower pressure solutions and potential advances in membrane technologies. Incumbent technology providers to the industry include membrane manufacturers such as industrial and chemical giants Siemens and Dow Chemical, as well as smaller players including Japanese group Kubota or US filtration membrane specialist Pall Corporation and the Treatment Technologies... read more