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Continued from Desalination Part 3: Getting Better All the Time... A bigger problem may be the leftover brine, which typically contains twice as much salt as seawater and is discharged back into the ocean. So far little scientific information exists about its long-term effects. In the past, most big seawater-desalination plants were built in places that did not conduct adequate environmental assessments, says Peter Gleick, president of the Pacific Institute, a think-tank based in California that published a report on desalination in 2006. But as plants are built in areas with tighter environmental restrictions, more information is becoming available. Related Article Tags: , , ,
These days, when mankind finds a way to run a natural resource dry, it seems to find an answer to its replenishment. Gasoline prices in the U.S. are soaring, but alternatives abound in the form of ethanol, bio diesel, and even recycled kitchen grease. In the past, when draught has reared its parched head, people turned to a multitude of things – water rationing, trading front lawns for yards full of quartz, even infrequent flushing. Thankfully, there is a highly effective and more practical answer to the world water crisis, in the form of water desalination. Related Article Tags: , , ,
Continued from the Desalination Article: Tapping the Ocean..... This reduced the energy consumption of sugar refining by up to 80 per cent, says James Birkett of West Neck Strategies, a desalination consultancy based in Nobleboro, Maine. But it took about 50 years for the idea to make its way from one industry to another. Only in the late 19th century did multi-effect evaporators for desalination begin to appear on steamships and in arid countries such as Yemen and Sudan. Related Article Tags: , , ,
THERE are vast amounts of water on earth. Unfortunately, over 97 per cent of it is too salty for human consumption and only a fraction of the remainder is easily accessible in rivers, lakes or groundwater. Climate change, droughts, growing population and increasing industrial demand are straining the available supplies of fresh water. More than 1 billion people live in areas where water is scarce, according to the United Nations, and that number could increase to 1.8 billion by 2025. Related Article Tags: , , ,
Continued from Desalination Part 2: No Salt, Please... In the late 1970s John Cadotte of America’s Midwest Research Institute and the FilmTec Corporation created a much-improved membrane by using a special cross-linking reaction between two chemicals atop a porous backing material. His composite membrane consisted of a very thin layer of polyamide, to perform the separation, and a sturdy support beneath it. Thanks to the membrane’s improved water flux, and its ability to tolerate pH and temperature variations, it went on to dominate the industry. At around the same time, the first reverse-osmosis plants for seawater began to appear. Related Article Tags: , , ,
Western Australia's Water Corporation is on track to produce drinking water form a 45GL/a desalination plant located in Kwinana, 25km south of Perth. The plant is being built by proAlliance - a 50/50 joint venture between West Australian construction company Multiplex and French water treatment company Degremont. Degremont will operate the 140,000m3/d plant for 25 years under a public-private partnership with the West Australian government-owned Water Corporation. The construction cost is $387 million. Related Article Tags: , , , ,
The Perth SWRO plant in Western Australia utilizes a combination of clean wind power and the highest efficiency ERD available for one of the most efficient and environmentally friendly desalination plants in world. The ongoing population growth in Australia's coastal communities combined with the worst drought in a century have unhappily converged creating the necessity for the Australian government to find water sources that are both located near to the large coastal communities that need them and that aren't subject to the whim's of changing weather patterns. Related Article Tags: , , , , ,
How soon will Saudi Arabia join the nuclear club? You might be surprised with our investigation. How will this change the world's energy picture? Water desalination will be the driving force behind Saudi's entry into nuclear energy. Related Article Tags: , , , , , , , , ,
When reverse osmosis water filters were first developed in the late fifties, it made some sense to apply that technology in individual homes. Now, however, we need to do everything we can to conserve water. And reverse osmosis filters waste most of the water put through the system. Even the very best systems flush four gallons of water for every one gallon of drinking water produced. Why would anyone pay to flush water down the drain?
A water treatment plant is a facility where water is treated to make it acceptable for the designated end-user. Various processes involved in water treatment at such facilities include sedimentation, filtration, chlorination, disinfection, coagulation and so on. Water purification equipments used at these plants are water filters, ozone generator, oil water separators, screening equipments, sludge treatment equipment and many more. Related Article Tags: , ,
Everyone expects to receive a clean, pure supply of water in their homes. In the twenty-first century, this should be one of the fundamental rights of every single person on this planet. Even in relatively advanced countries such as the United States and France, this is often far from the case. Even when the water isn't cloudy and it tastes great, it can be dirty and unhealthy. Related Article Tags: , , ,
As numerous countries around the world look to alternative energies for electricity and other power generation, Australia has taken the lead in wave power. Renewable energy that powers homes and provides drinking water only makes sense in a country surrounded by ocean. Related Article Tags: , , , ,
The new pressure exchanger (PX) device transfers the energy from the concentrate stream directly to the feed stream. This direct, positive displacement approach results in a net transfer efficiency of over 95 per cent. Although application of the PX technology is simple in both theory and practice, in order to get the most benefit from this technology it is important to reconsider the SWRO design and operation approach. Related Article Tags: , , , , ,
The new pressure exchanger (PX) device transfers the energy from the concentrate stream directly to the feed stream. This direct, positive displacement approach results in a net transfer efficiency of over 95 per cent. Although application of the PX technology is simple in both theory and practice, in order to get the most benefit from this technology it is important to reconsider the SWRO design and operation approach. Related Article Tags: , , , ,
The Cayman Islands located in the pleasant and picturesque Caribbean, are a paradise spot for vacation travelers, honeymooners and even celebrities across the world. Read on to know how to make your honeymoon in Cayman Islands the most memorable one. Related Article Tags: , , , ,
Forget the doom and gloom about increasing foreclosures. This article will give you a different outlook which can improve your life.
Reverse osmosis is a very practical and common process nowadays, and people use it to accomplish a variety of practical purposes, such as the purification of water for drinking, washing cars, in the food industry, for the producing of maple syrup and the production of hydrogen. Related Article Tags: , , , ,
Despite the fact that the commercial production of Titanium has only been possible in the last sixty years and then only by a complex and expensive process, it's unique properties have resulted in advances in technology, aviation, marine, medicine and the many other applications that we now take for granted but may not have been possible or be as efficient by using an alternative. Related Article Tags: , , ,
Mustique is one of the smaller islands in St. Vincent and The Grenadines and, while a beautiful Caribbean island in its own right, it gained a certain notoriety from the famous rock stars, royalty and the fabulously rich who came to visit and even to stay.
We talked to North America's leading In Situ Leach (ISL) uranium mining engineers, and had them explain exactly how ISL worked. Most of the significant ISL operations in the United States were designed and/or constructed by these engineers. They explained how ISL mining is really just reversing the process of Mother Nature. Related Article Tags: , , , , , , ,
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