TY - JOUR
T1 - Developments in enzyme and microalgae based biotechniques to remediate micropollutants from aqueous systems—A review
AU - Usmani, Zeba
AU - Sharma, Minaxi
AU - Lukk, Tiit
AU - Karpichev, Yevgen
AU - Thakur, Vijay Kumar
AU - Kumar, Vivek
AU - Allaoui, Abdelmounaaim
AU - Awasthi, Abhishek Kumar
AU - Gupta, Vijai Kumar
PY - 2022
Y1 - 2022
N2 - While the production and usage of pesticides, pharmaceuticals, and personal care products have greatly improved the quality of life for humans, their application has increasingly been contaminating aqueous systems with micropollutants due to seepage, run-off, effluent discharge and uptake in the environment. Micropollutants exhibit considerable ecotoxicities and adverse effects on human health, making them a critical environmental concern. Current micropollutant remediation methods which involve advanced oxidation processes and membrane technologies are costly, consume excess chemicals, require high amounts of energy, form harmful by-products and sludge that are difficult to manage. The usage of oxidative laccases and peroxidases, microalgae and microalgae-bacteria consortia are emerging as novel green alternatives for the remediation of micropollutants from contaminated aqueous systems. This review details recent advances made in the application of green media utilized in micropollutant remediation through degradation, immobilization, adsorption, bioaccumulation and co-metabolism. These methods are discussed as secondary treatment techniques for wastewater plant effluents or as a tertiary treatment in conjunction with other chemical and biological technologies to metabolize toxic chemicals in-situ and yield innocuous outputs. A critical discussion on advantages, application, current developments, drawbacks and future perspectives of these biotechniques is presented.
AB - While the production and usage of pesticides, pharmaceuticals, and personal care products have greatly improved the quality of life for humans, their application has increasingly been contaminating aqueous systems with micropollutants due to seepage, run-off, effluent discharge and uptake in the environment. Micropollutants exhibit considerable ecotoxicities and adverse effects on human health, making them a critical environmental concern. Current micropollutant remediation methods which involve advanced oxidation processes and membrane technologies are costly, consume excess chemicals, require high amounts of energy, form harmful by-products and sludge that are difficult to manage. The usage of oxidative laccases and peroxidases, microalgae and microalgae-bacteria consortia are emerging as novel green alternatives for the remediation of micropollutants from contaminated aqueous systems. This review details recent advances made in the application of green media utilized in micropollutant remediation through degradation, immobilization, adsorption, bioaccumulation and co-metabolism. These methods are discussed as secondary treatment techniques for wastewater plant effluents or as a tertiary treatment in conjunction with other chemical and biological technologies to metabolize toxic chemicals in-situ and yield innocuous outputs. A critical discussion on advantages, application, current developments, drawbacks and future perspectives of these biotechniques is presented.
KW - Bioremediation
KW - laccase
KW - microalgae
KW - peroxidase
KW - wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=85098583872&partnerID=8YFLogxK
U2 - 10.1080/10643389.2020.1862551
DO - 10.1080/10643389.2020.1862551
M3 - Review article
SN - 1064-3389
VL - 52
SP - 1684
EP - 1729
JO - Critical Reviews in Environmental Science and Technology
JF - Critical Reviews in Environmental Science and Technology
IS - 10
ER -