Removal of phosphorous in agricultural runoff water by electrocoagulation for hydraulic fracturing
Publication Date: 2013-May-29
The IP.com Prior Art Database
This invention covers an application during which agricultural runoff water is treated by electrocoagulation to remove phosphorous, so that the water can be used to make a stable fracturing fluid. Phosphorous can delay or prevent crosslinking of polymers in zirconate fluids by binding to the zirconium crosslinker. Aluminum produced by electrocoagulation undergoes ion exchange with phosphorous in the form of phosphate to produce an insoluble metal phosphate. The invention is novel in that the end application of treatment is to produce water to a quality acceptable for hydraulic fracturing. Treatment of agricultural water is currently being done with electrocoagulation; however the water is not being used for hydraulic fracturing.