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UV/chlorine advanced oxidation processes for degradation of contaminants in water and wastewater: A comprehensive review

Journal Article · · Journal of Environmental Chemical Engineering (Online)
 [1];  [2];  [2]
  1. West Virginia University, Morgantown, WV (United States); OSTI
  2. West Virginia University, Morgantown, WV (United States)

Advanced oxidation processes (AOPs) have recently gained increasing attention as promising alternatives to conventional water and wastewater treatment technologies. As an AOP, there has been a growing interest in UV/chlorine due to its multiple disinfection modes and ability to maintain chlorine residuals in drinking water distribution systems. Compared to the popular UV/H2O2 AOP treatment process, UV/chlorine AOP possesses several advantages including a higher radical production efficiency and a lower power demand. The process has recently been applied for the degradation of a wide range of natural and synthetic organic as well as inorganic compounds including pharmaceutical and personal care products, natural organic matter, herbicides and insecticides, taste and odor, and different types of water and wastewaters. The focus of the present work is to review and evaluate the efficiency of the UV/chlorine process on the oxidation of these pollutants. Here a critical overview is provided of the fundamentals of UV/chlorine, controlling factors of the process performance, and a comparison with other UV-based AOPs. The formation of disinfection by-products (DBPs), one of the concerns associated with UV/chlorine treatment, is discussed and strategies to tackle this obstacle are provided for future studies and applications.

Research Organization:
West Virginia University, Morgantown, WV (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE); National Science Foundation (NSF)
Grant/Contract Number:
FE0031740
OSTI ID:
1977294
Alternate ID(s):
OSTI ID: 1856279
Journal Information:
Journal of Environmental Chemical Engineering (Online), Journal Name: Journal of Environmental Chemical Engineering (Online) Journal Issue: 3 Vol. 10; ISSN 2213-3437
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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