Researchers have developed a process to remove contaminants from oil sands wastewater using only sunlight and nanoparticles that is more effective and inexpensive than conventional treatment methods.
Cleaning up oil sands tailings has just gotten a lot greener thanks to a novel technique developed by University of Alberta civil engineering professors that uses solar energy to accelerate tailings pond reclamation efforts by industry.
Instead of using UV lamps as a light source to treat oil sands process affected water (OSPW) retained in tailings ponds, professors Mohamed Gamal El-Din and James Bolton have found that using the sunlight as a renewable energy source treats the OSPW just as efficiently but at a much lower cost.
“We know it works, so now the challenge is to transfer it into the field,” says Gamal El-Din, who also worked on the project with graduate students Zengquan Shu, Chao Li, post doctorate fellow Arvinder Singh and biological sciences professor Miodrag Belosevic.
“This alternative process not only addresses the need for managing these tailings ponds water, but it may further be applied to treat municipal wastewater as well. Being a solar-driven process, the cost would be minimal compared to what’s being used in the field now.”