About this Research Topic
Oilfield wastewater which is produced during oil and gas extraction is known as Produced water. It is composed of produced oil/gas and also many other complex mixtures such as dissolved and undissolved solids, minerals and salts. It amounts to at least 3 times the volume of produced oil/gas and in some oil/gas fields it reaches up to 50 times this volume. Furthermore, as the oil/gas wells get older the amount of Produced water will also increase. Produced water is the largest wastewater source and one of the biggest challenges for oil and gas industries as well as governments since it causes huge pollution issues for societies. Due to the great amounts of hazardous Produced water generated at the moment, there is increased concern for researchers to handle this issue. From the other side, water scarcity and associated environmental challenges are being experienced around the world.
Researchers are working extensively to find new techniques for Produced water treatment for either the production of drinking water or for irrigation in agricultural systems. A further group of researchers want to use Produced water as a new source of alternative energy for the production of green, low-emission fuels. As an example, scientists decided to utilize Produced water as a source (substrate) in fuel cells and simultaneously treat the wastewater and produce electricity in this zero-emission technology. These low-carbon energies may then be used by societies/industries which do not pollute the environment and do not cause global warming to have a mitigation effect. Different types of fuel cells (such as biological fuel cell) and several techniques of desalination (such as forward osmosis) are appropriate options for using Produced water as a source of low-carbon energy and for the treatment of Produced water.
In this article collection, we are looking for new and economically-viable techniques for the treatment of oil industry Produced water and also, new systems that can utilize the produced water as an energy source. The goal is to find the best ways for the treatment of the wastewater (in terms of technology and economic considerations) such as thermal treatment or membrane techniques. The results can be utilized in irrigation or as drinking water but most importantly, for the production of low-carbon energy.
The Topic Editors welcome contributions on themes such as, but not limited to, the following:
• New techniques for Produced water treatment
• Solid and liquid waste treatment from the oil & gas industry
• Membrane fabrication and application in Produced water treatment
• Simultaneous waste treatment and energy production
• Novel catalysts for energy production from treated wastewater from the oil & gas industry
• Treated Produced water for irrigation and drinking
Keywords: Produced water, green energy, drinking water, water treatment, clean environments
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