There’s a lot of talk of treating and reusing water in the oil field. Now Purestream Services says it has won a contract from a gas producer in the Eagle Ford Shale region to treat wastewater at a centralized facility near Gonzales.The facility was built to accommodate water from shale wells – both the water that returns up a well after hydraulic fracturing and the water that comes out of the shale rock itself. Treating wastewater near the well sites lowers the cost and limits the traffic and environmental impact of trucking water to disposal wells that may be far away in other counties, the company said.
“Oil and gas producers are looking for cost-effective water treatment processes that reduce the long distances required to haul water for disposal,” said Purestream CEO Neil Richardson in a press release. Purestream, which is based in Salt Lake City, uses two technologies. The induced-gas flotation technology “clarifies water by removing hydrocarbons and total suspended solids to below 10 (parts per million).” The AVARA Vapor Recompression System “removes chlorides and total dissolved solids from the wastewater to below 300 (parts per million).The treated water can be discharged and is “cleaner than U.S. drinking water quality standards.”