Dissolved oxygen concentration as a strategy to select type and composition of bacterial storage lipids produced during oilfield produced water treatment

2021 ◽  
pp. 101693
Author(s):  
Rita M. Silva ◽  
Ana Rita Castro ◽  
Raul Machado ◽  
Maria Alcina Pereira
Keyword(s):  
Water Treatment ◽  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Produced Water ◽  
Dissolved Oxygen Concentration ◽  
Storage Lipids ◽  
Produced Water Treatment ◽  
Oilfield Produced Water

scholarly journals Recent advances, influencing factors, and future research prospects using photocatalytic process for produced water treatment

2021 ◽  
Author(s):  
Kingsley Tamunokuro Amakiri ◽  
Athanasios Angelis-Dimakis ◽  
Anyela Ramirez Canon
Keyword(s):  
Water Treatment ◽  
Environmental Remediation ◽  
Produced Water ◽  
Future Research ◽  
Quality Level ◽  
Adequate Treatment ◽  
Practical Applications ◽  
Produced Water Treatment ◽  
Treatment Technologies ◽  
Oilfield Produced Water

Abstract Oilfield-produced water is the primary by-product generated during oil and gas extraction operations. Oilfield-produced water is often severely toxic and poses substantial health, safety, and environmental issues; adequate treatment technologies must bring these streams to a quality level. Photocatalysis is a photochemical catalytic reaction that is a highly promising tool for environmental remediation due to its efficiency in mineralizing persistent and potentially toxic contaminants. However, there is limited understanding of its application to treating oilfield-produced water with a complex and highly variable water composition. This review article discusses the mechanisms and current state of heterogeneous photocatalytic systems for oilfield-produced water treatment, highlighting impediments to knowledge transfer, including the feasibility of practical applications and the identification of essential research requirements. Additionally, the effects of significant variables such as catalyst quantity, pH, organic compound concentration, light intensity, and wavelength were discussed in detail. Some solutions are proposed for scientists and engineers interested in advancing the development of industrial-scale photocatalytic water treatment technologies.

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