New technology could Generate thousands of gallons of freshwater per day from Fracking wastewater
Media Release: November 13, 2018
Agua Dulce Technologies, LLC, a privately funded and owned corporation based in Littleton, Colorado, is building a wastewater purification plant in Colorado to demonstrate new membrane pervaporation technology that could generate thousands of gallons of freshwater per day from fracking and other wastewaters. Our new technology shows it could scale at 1,000 barrels per week of feedstock from the oil and gas fields in the United States.
How our new technology works
Using our new membrane pervaporation technology, multiple porous ceramic tubes with very high surface areas are used to separate fresh water from mineral salts under conditions of moderately low temperature and pressure. The energy required for this process is provided by natural gas from the large oil shale resources while low pressure in the membrane modules is maintained by low cost and innovative devices. In addition, Agua Dulce Technologies will install a robust pre-treatment technology to recover any residual crude oil from wastewater and remove all solid debris from the feedstock prior to our new water purification process.
Our pervaporation process, carried out in modified ceramic membranes and powered by natural gas from oil wells, is expected to lower or eliminate flaring and prevent injection of wastewater in the sub-surfaces by recycling fresh water and crystallizing most of the mineral salts on site.
How we prove our technology
Agua Dulce Technologies has secured a 16,500 square foot facility in Denver to host a wastewater purification plant and will receive feedstock from various Wastewater Disposal Facilities (WDFs) . Our company is currently collaborating with Pervatech, BV, in The Netherlands to fabricate ceramic membrane tubes suitable for pervaporation techniques established by US Metals Refining Group (USMRG), where we've acquired our exclusive license. USMRG has filed a patent for this membrane pervaporation technology which utilizes innovative vacuum generating devices and unique ceramic tube configurations.
Agua Dulce Technologies engaged Process Engineering Associates, LLC (PEA) from Alabama and Utah to complete the basic engineering design, pipe sizing and instrumentation diagrams for both pretreatment and pervaporation processes. Upon successful delivery of the front-end engineering design data and reports, Agua Dulce Technologies contracted Tetra Tech, Inc. in Utah to complete the feasibility and the detailed engineering design of the plant.
Early pilot test work results generated by USMRG were reviewed by QP Engineers from Samuel Engineering, Inc. based in Denver.
Speaking on behalf of partners and board members, Dr Henry Kasaini, President and CEO of Agua Dulce Technologies and inventor of our technology patent, said “We are thrilled to acquire the exclusive license to wastewater treatment technology from USMRG and are looking forward to creating strategic partnerships with the Oil and Gas operators in the United States and other wastewater disposal companies to debottleneck the fracking process by recycling fresh water, minimizing or eliminating wastewater injection into the subsurface rock formations and to significantly reduce flaring. "
"This technology could not have come at a better time," Kasaini continued, "although this technology has great potential to concentrate minerals from brine solutions and generate thousands of gallons of fresh water per day, our company will not focus on recovery of minerals from brine but rather collaborate with oil and gas companies to minimize environmental damage and accelerate oil and gas production.”
Dr Kasaini added, “We have tested the performance of this technology on brines from the mining industry including effluents from uranium mines . The results obtained so far are impressive. For each barrel of wastewater treated , 85-90%wt fresh water was recovered. Each barrel of wastewater processed contained up to 10%wt residual crude oil which was successfully recovered. With regards to mineral salts, we were able to upgrade metals to the final mineral-rich discharge solution by factors of 10-40.”
If you are interested in learning more about our new technology, contact: