As fracking amongst Marcellus Shale in the northeastern part of the United States increases so does the concern over its process. Fracking is done utilizing a hydraulic fracturing process, which pumps a high-pressure mixture of water, chemicals and sand deep into the sedimentary formations to extract naturally occurring gas. The resultant
Tag:
wastewater
Excess Radioactivity and Metals Found in Pennsylvania Fracking Wastewater
written by Yale Environment 360
Researchers found high levels of radioactivity, metals, and salts in sediments and water downstream from a Pennsylvania facility that treats fracking wastewater. Radioactivity levels downstream of the treatment plant were about 200 times higher than in surrounding areas, and concentrations of some salts and metals were also higher than background levels,
Loofah Plant Seeds Absorb Organic Pollutants and Heavy Metals from Wastewater
written by Walter Wang
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
“There is a an almost uncanny fit between India’s needs in the urban water arena, and what Israeli companies are able to offer,” so says Abraham Tenne, VP Desalination at Israel’s Water Authority following a visit last week to India. The visit was one implementation of an agreement signed this past February between the two nations aimed at fostering cooperation, with a
Not many cleantech start-ups can claim a 40 million dollar deal only a year and a half after founding. But WateRevive, which was selected as one of the most promising Israeli cleantech start-ups by Calcalist newspaper in 2012, and which is active in water purification through constructed wetland, just closed such a deal in China. The Company is also
Carbon emissions that go into the atmosphere are the pivot of environmental talks, and for a good reason, since they are the main cause of global warming (switching to alternative energy is one of the solutions to that). There are lots of earth-level environmental issues that need to be dealt with urgently such as water treatment and some people
For its July magazine issue, Texas Monthly took an in-depth look at the diminishing Texas water supply. The detailed cover story jumps right to the heart of the matter in the first paragraph: “As last year’s historic drought reminded us, Texas has always lived life by the drop, just a few dry years away from a serious crisis. With our population expected to nearly double
Water and wasterwater facilities in California, Arizona and Nevada will be enjoying the benefits of solar power thanks to a new partnership struck with Kennedy/Jenks. Water treatment is an energy-hungry method, therefore introducing clean, renewable energy can reduce its environmental footprint.
NASA has developed a system capable of growing large amounts of algae for biofuel production within a network of floating plastic bags, an innovation its developers say could ultimately produce a new fuel source.
By pumping wastewater and carbon dioxide into four nine-meter plastic bags at a demonstration plant in
U.S. scientists have developed a fuel cell capable of converting 13 percent of the energy found in sewage into electricity, a process that its developers say could also more efficiently treat municipal wastewater.
In a report released at the annual meeting of the American Chemical Society, researchers at the J.
There are so many smart new social innovation technologies coming out to create renewable fuels and power supplies. The latest discovery is that sewage plants are being used to not only treat waste but to also generate electricity. This knowhow is devised by Prof Bruce Logan, an environmental engineer specializing in water systems at Pennsylvania State
When you live with 5 million other people on a relatively small island, finding ways to live more sustainably isn’t so much a luxury as a necessity.
That’s why Singapore—which has the third greatest population density of any sovereign state in the world—has become something of a pioneer in finding ways to live in a more sustainable manner.
Start with water. For years, Singapore has relied on imported water from Malaysia to provide 40 percent of its water supply.
To become more self sufficient, Singapore has invested billions of dollars in membrane filtration technologies that allow wastewater to be reclaimed, filtered, and transformed into high purity potable water called NEWater. This is in addition to heavy investments in desalination plants and rainwater-catching reservoirs that further reduce its reliance on imported water.
Another area where Singapore excels is building efficiency—an area with huge potential impact, given that an astounding 90 percent of the population lives in some form of high-rise condominium. Singapore has set an ambitious target of greening at least 80 percent of its buildings by 2030, including existing stock.
Clean technology advancements are also allowing Singapore to make great strides in transportation, particularly around the adoption of electric vehicles (EVs). Since roughly 85 percent of Singapore’s power supply comes from natural gas, EVs provide a cleaner solution compared with conventional oil burning vehicles.
And while EVs typically travel a shorter distance compared with conventional vehicles, that’s not really a concern on a 26-mile wide island.
Singapore-based clean tech company Greenlots is developing the best way to charge these EVs. Since 2008, the company has been committed to designing and delivering hardware and software to enable utilities, municipalities, electric vehicle manufacturers and distributors and other private businesses to install, own and operate their own EV charging network. Already, Greenlots has established charging stations in major parking lots in the city, including those at Bedok Point Shopping Centre and Kovan Residences.
By investing in clean technology innovations, Singapore is able to tackle multiple areas that impact its future. Its forward-thinking design solutions to environmental problems are sure to yield benefits both today and tomorrow.
Bubbling New Technologies for Cost Effective Wastewater Purification: Mapal and Diffusaire
written by Walter Wang
One of the biggest challenges in the water arena is lowering the cost of wastewater purification, which is a heavy consumer of energy. Israeli start-ups Diffusaire and Mapal have developed technologies which bring dramatic cost-savings to wastewater treatment facilities.
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