Shopping? Check out our latest product comparisons

Wastewater

The treatment process in progress, using chemicals naturally abundant in wastewater to cle...

Using wastewater to clean itself is the premise of new Australian technology that relies on the formation of compounds called hydrotalicites, and which results in less sludge than traditional water treatment with lime. In one test in Australia, the equivalent of 20 Olympic-sized swimming pools of wastewater were treated, with final sludge reductions of up to 90 percent.  Read More

Stefanie Kring studies zooplankton gathered from wastewater lagoons

With dwindling non-renewable fuel sources creating an enormous energy challenge, the search is on to develop sustainable, renewable types of energy such as solar, wind and biofuel. One of the recent developments in this field comes from New York's Clarkson University, where new findings suggest that small organisms found in wastewater treatment lagoons could be used as biofuel feedstock.  Read More

Silkworms chowing down on one of their favorite foods – mulberry leaves  (Photo: Shutterst...

Like most other fabrics, silk is colored with dye. Unfortunately, the dyeing process results in wastewater laden with toxins. Now, however, scientists from the National Chemical Laboratory in India are developing an alternative. They're feeding dye to silkworms, which in turn are producing pre-colored silk fibers.  Read More

Scientists have had success at capturing rare earth elements diluted in industrial wastewa...

Rare earth elements are an integral part of many of today's electronic devices, serving as magnets, catalysts and superconductors. Unfortunately, these minerals are also ... well, rare, and thus very pricey. Recently, however, scientists discovered that some of them can be reclaimed from industrial wastewater, instead of being mined from the earth.  Read More

Instead of becoming less gloomy, perch exposed to antidepressant residue get reckless and ...

While some people may wonder about the possible side-effects of antidepressants on the people who are taking them, here’s another thing to consider ... what happens when the residue from those drugs passes through the user’s urine and into the sewage system? As it turns out, it can enter local waterways and affect the fish. Now, researchers from KTH Royal Institute of Technology in Stockholm have developed technology to keep that from happening.  Read More

Lessons learned aboard the International Space Station have contributed to the development...

When they’re living aboard spacecraft, astronauts presently rely on mechanically-driven life support systems. Not only is there a danger of these systems breaking down, but maintenance can be challenging, as they’re always in use. While redundant duplicate systems could take over in such situations, they add to the expense and weight of a spacecraft, and also take up valuable space. Instead, NASA is exploring another possibility – the passive “Water Walls” system, which would use the principle of forward osmosis to perform tasks such as water filtration, air filtration, and even food growth.  Read More

Research at Oregon State University by engineer Hong Liu has discovered improved ways to p...

In the latest green energy – or perhaps that should be brown energy – news, a team of engineers from Oregon State University (OSU) has developed new technology they claim significantly improves the performance of microbial fuel cells (MFCs) that can be used to produce electricity directly from wastewater. With the promise of producing 10 to 50 times the electricity, per volume, than comparable approaches, the researchers say the technology could see waste treatment plants not only powering themselves, but also feeding excess electricity back to the grid.  Read More

GE's AquaSel system reduced the waste stream to almost zero at a bottling plant in Asia

Although water is the world’s most precious commodity, an astounding amount of it is wasted by industries. Fortunately, water treatment and recovery has become the focus of several technology companies, including GE, which recently demonstrated a water treatment technology that virtually eliminates losses at bottling plants and other water-related operations. The pilot study of GE’s AquaSel, a non-thermal brine concentrator technology, took place at the plant of a leading beverage company in Asia. GE says costs were greatly reduced and there was almost no liquid discharge.  Read More

Clariant's Advanced Denim manufacturing process cuts the amount of water, energy and chemi...

Denim jeans have become a mainstay of wardrobes the world over, but with some estimates suggesting that over 2,500 gallons (9,463 l) of water, almost a pound of chemicals and significant amounts of energy are required to produce just one pair of jeans, their success has a significant impact on the environment. Now a new process developed by Swiss chemical company Clariant promises to turn blue (and other colored) jeans a shade of green.  Read More

The OECD has released a report outlining the challenges humanity faces to maintain water r...

Worldwide population growth and the related rapid increase in urbanization is already posing problems in many areas for the management of that most precious of resources, water. With these problems only set to intensify, the Organization for Economic Co-Operation and Development (OECD) has released a report outlining the challenges humanity faces to maintain water resources in the face of demographic growth and climate change. Called Meeting the Water Reform Challenge, the report says that urgent reform of water policies is crucial in order to preserve human and environmental health as well as economic growth.  Read More

Looking for something? Search our 27,811 articles