As NASA predicts a decades-long mega-drought later this century, next generation water processing technology coming from within the oil industry promises not only to help solve Texas’ drought problem by accessing and desalinating brackish and slightly salty water sources deep under the dry Texan surface, but to go one step further by desalinating ocean water and turning dirty water into potable water.

While conventional desalination technologies only recover about 35% of fresh water from a gallon of seawater, new Dutch technology brought to Texas by a local company recovers approximately 97% of the fresh water at an economical cost. At the same time, the new technology uses no chemicals, rendering it quite possibly the ‘greenest’ water processing technology in operation today.

This ushers in the ability to add new water sources to our current ecological system by desalinating brackish and ocean water that previously was not considered in the amount of fresh water available for human consumption.

A Water Revolution Takes Root

Texas barely survived a seven-year drought in the 1950s, when 100,000 farms and ranches were lost, and a recent study by a NASA scientist says there is a good chance Texas may see something much worse than this as global warming leads to long-term drying in the west. This time it could be a mega-drought—the worst in 1000 years—that could last for decades.

For the oil and gas industry, water-starved Texas is a highly competitive playing field and the competition between oil companies and other heavy users of water is intense. The shale boom and the hydraulic fracturing revolution have exponentially raised the stakes in this competition as demand for water has soared. Texas is where the fracking revolution began; and now it is where the water revolution is taking root.

Producers are surrounded in a pincher movement, both by critics of how much water they use and by internal pressure to ensure enough supplies of water to keep drilling and fracking.

The answer to Texas’ drought, concerns about future supplies of potable water, and oil industry fears of fracking drying up, is next generation technology that hits out at the water dilemma on three fronts simultaneously.

Salttech’s DyVaR: Dynamic Vapor Recovery
DyVaR is a modular system comprising small vessels designated “Dynamic Vapor Recovery units” or “DyVaR Units”. These devices consist of non-metallic components that are highly modular in design. Any user-desired capacity and rate of desalination is possible with DyVaR, according to Salttech. Individual DyVaR units will treat 50 liters/hour (or 7.5 bbl/day), reaching capacities of up to 10s of m3/hr (or 1,000s of bbl/day).
The 3D vapor recovery process combines tangential forces exceeding 100G with moderate temperature and pressures, thus enabling desalination with very efficient operating statistics. The DyVaR 3D design concept is optimized to allow for maximum crystallization without scaling or fouling.
The DyVaR ZLD process combines all of the features and benefits of DyVaR’s standard technology and adds solids separation. The integrated SDU (Solids Discharge Unit) equipment is a part of the DyVaR ZLD process facilitating the separation of solid salts from the system.
The DyVaR ZLD technology can recover up to 97% clean water from any high chloride water containing dissolved salts and other solids and contaminants of up to and over 300,000 parts per million including frack flowback, oilfield produced water, and ocean water and its reverse osmosis concentrated brine reject. The remaining 3+% is discharged in the form of solid salts and minerals.
Most ocean water desalination systems produce 35% fresh water and 65% waste stream of highly concentrated brine liquid that ends up being discharged into the local waterways and oceans potentially creating harmful effects on the ecosystems.

Salttech DyVaR Zero Liquid Discharge (ZLD) water processing technology was developed in the Netherlands by Salttech and was launched first by Texas-based STW Resources in July last year in Mentone, Texas, in the Permian Basin. The Salttech desalination system is now providing the residents of Mentone with more drinking water than they could have ever hoped for.

This is a win-win situation for all water end users, and environmentally, there are no snags: It’s a green process all the way, with absolutely no chemicals or filtration involved. And not only is the new technology providing all of Mentone’s drinking water—its entire operations are run on solar power energy.

The Salttech systems can be manufactured to process as many gallons of water per day as is needed, according to STW Resources Holding Corp, which has the exclusive license for this technology not only in the US, but also in Canada, Mexico and Central America.

For the oil industry, this is a breakthrough technology that could save it untold sums of money by reclaiming the massive volumes of precious water used in drilling and fracking and also processing produced water that accompanies oil and gas production.

For municipalities and local governments—particularly in Texas during this time of unprecedented drought—it means future water security by accessing new sources that were previously unusable just below the Earth’s surface.

For the ecosystem, it means creative conservation.

“With the shortage of fresh water worldwide, our technology can help in many areas to relieve the shortages. We can also assist in any ocean desalination reverse operations to exclude the need to dispose of the concentrated brine reject into local waterways and oceans thus preventing any possible detrimental effects to the highly sensitive balance of the ecosystem. This Salttech DyVaR is a major technological breakthrough since we can now economically process high chloride water into potable water and not have any detrimental effects on our environment,” Stanley Weiner, CEO of STW Resources, said in a January 2015 press release.

We’ve all heard of desalination technology before, but the sticking point—as it always is with new technology—is cost. Desalination has never been economical on a commercial scale before. Until now, the price of desalinated water projects has hovered around $8 a barrel, but the Dutch version comes in at around $1.50-$2.00 per barrel, or approximately $1,100-$1,350 per acre-foot of water.

Additionally, whereas your typical desalination plant returns only about 35% of the water, Saltech technology can return 97%—and this is a key factor in the economics and environmentally positive attributes of the technology.

Mentone was just the small beginning. Another Permian Basin project is planning much bigger things.

In the Capitan Reef Aquifer, in the city of Fort Stockton, Texas, STW is now drilling its first production well and planning to drill several additional wells into this and other brackish aquifers about 2,000-4,500 feet under the surface. The goal is to start selling water in the second quarter of this year.

This is nothing like the fracking revolution and the shale boom. This is a revolution of much greater proportions—and again, it’s playing out in Texas.

Source: http://oilprice.com/Energy/Energy-General/Texas-From-Shale-Boom-to-Water-Revolution.html