Roles and applications of enzymes for resistant pollutants removal in wastewater treatment

Siran Feng; Huu Hao Ngo; Wenshan Guo; Soon Woong Chang; Dinh Duc Nguyen; Dongle Cheng; Sunita Varjani; Zhongfang Lei; Yi Liu

doi:10.1016/j.biortech.2021.125278

Roles and applications of enzymes for resistant pollutants removal in wastewater treatment

Bioresour Technol. 2021 Sep:335:125278. doi: 10.1016/j.biortech.2021.125278. Epub 2021 May 15.

Authors

Siran Feng¹, Huu Hao Ngo², Wenshan Guo³, Soon Woong Chang⁴, Dinh Duc Nguyen⁵, Dongle Cheng¹, Sunita Varjani⁶, Zhongfang Lei⁷, Yi Liu⁸

Affiliations

¹ School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia.
² School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia; Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam; Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan. Electronic address: ngohuuhao121@gmail.com.
³ School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia; Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
⁴ Department of Environmental Energy Engineering, Kyonggi University, 442-760, Republic of Korea.
⁵ Department of Environmental Energy Engineering, Kyonggi University, 442-760, Republic of Korea; Institution of Research and Development, Duy Tan University, Da Nang, Viet Nam.
⁶ Gujarat Pollution Control Board, Gandhinagar-382 010, Gujarat, India.
⁷ Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
⁸ Department of Environmental Science and Engineering, Fudan University, 2205 Songhu Road, Shanghai 200438, China.

PMID: 34015565
DOI: 10.1016/j.biortech.2021.125278

Abstract

Resistant pollutants like oil, grease, pharmaceuticals, pesticides, and plastics in wastewater are difficult to be degraded by traditional activated sludge methods. These pollutants are prevalent, posing a great threat to aquatic environments and organisms since they are toxic, resistant to natural biodegradation, and create other serious problems. As a high-efficiency biocatalyst, enzymes are proposed for the treatment of these resistant pollutants. This review focused on the roles and applications of enzymes in wastewater treatment. It discusses the influence of enzyme types and their sources, enzymatic processes in resistant pollutants remediation, identification and ecotoxicity assay of enzymatic transformation products, and typically employed enzymatic wastewater treatment systems. Perspectives on the major challenges and feasible future research directions of enzyme-based wastewater treatment are also proposed.

Keywords: Enzymatic wastewater treatment; Enzyme-mediator; Resistant pollutants; Toxicity assay; Transformation products.

Publication types

Review

MeSH terms

Biodegradation, Environmental
Environmental Pollutants*
Waste Disposal, Fluid
Wastewater / analysis
Water Pollutants, Chemical* / analysis
Water Purification*

Substances

Environmental Pollutants
Waste Water
Water Pollutants, Chemical