This has more than tripled the use of recycled produced water for its customer to nearly 100%. Dow Chemical says that Tequatic Plus filters were chosen due to their simple and economical operation, and their ability to treat high-solids, oily water consistently with minimal maintenance, filter changes and chemicals. BNN installed five filters into the new water treatment plant in December 2014 and, consequently, was able to recycle nearly 100 percent of produced water – more efficiently than traditional technologies can deliver for this application. BNN expects to save about US$2 per barrel of water for its customer, ultimately reducing water-related operating costs by about 60%. Dow Chemical says that Tequatic Plus filters can filter out very fine particles – in this case, down to 20 microns – so that the recycled water in storage tanks is much less susceptible to microbial growth. Finer filtration also enables higher blend rates of recycled produced water to be used in additional fracking jobs.
