TY - GEN
T1 - Systematic review and meta-analysis of the application of microorganisms for the Cr(VI) removal from tannery effluents
AU - Morey, Llajandra Aquije
AU - Zanabria Chuchon, Ricardo D.
AU - Castañeda Olivera, Carlos A.
AU - Jave Nakayo, Jorge L.
AU - Benites Alfaro, Elmer G.
AU - Cabello Torres, Rita J.
N1 - Publisher Copyright:
© 2021 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.
PY - 2021
Y1 - 2021
N2 - The application of microorganisms as bioadsorbents for the treatment of industrial effluents is shown to be an efficient and environmentally viable technology, since it does not generate toxic products. In the present systematic review and meta-analysis, information was gathered about the capacity of microorganisms to remove hexavalent chromium (Cr(VI)) from tannery effluents. In addition, the different variables of the bioadsorption process such as pH, microorganism dose, incubation time, initial metal concentration and final metal concentration were investigated. These parameters were considered according to each species studied in the included investigations. For the meta-analysis, Review Manager 4.0 (RevMan) software was used through the fixed effect model with a 95% confidence interval. The results revealed that the included investigations showed a considerable statistical heterogeneity (I2 = 87%) and that the application of microorganisms for the Cr(VI) removal from tannery effluents showed greater efficiency at lower initial concentrations of the metal. It was also observed that the microorganisms used in the included investigations showed percentages of Cr(VI) removal higher than 70% for the treatment of tannery effluents.
AB - The application of microorganisms as bioadsorbents for the treatment of industrial effluents is shown to be an efficient and environmentally viable technology, since it does not generate toxic products. In the present systematic review and meta-analysis, information was gathered about the capacity of microorganisms to remove hexavalent chromium (Cr(VI)) from tannery effluents. In addition, the different variables of the bioadsorption process such as pH, microorganism dose, incubation time, initial metal concentration and final metal concentration were investigated. These parameters were considered according to each species studied in the included investigations. For the meta-analysis, Review Manager 4.0 (RevMan) software was used through the fixed effect model with a 95% confidence interval. The results revealed that the included investigations showed a considerable statistical heterogeneity (I2 = 87%) and that the application of microorganisms for the Cr(VI) removal from tannery effluents showed greater efficiency at lower initial concentrations of the metal. It was also observed that the microorganisms used in the included investigations showed percentages of Cr(VI) removal higher than 70% for the treatment of tannery effluents.
KW - Hexavalent chromium
KW - Meta-analysis
KW - Microorganisms
KW - Systematic review
KW - Tannery effluents
UR - http://www.scopus.com/inward/record.url?scp=85122009851&partnerID=8YFLogxK
U2 - 10.18687/LACCEI2021.1.1.145
DO - 10.18687/LACCEI2021.1.1.145
M3 - Conference contribution
AN - SCOPUS:85122009851
T3 - Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
BT - 19th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology
A2 - Larrondo Petrie, Maria M.
A2 - Zapata Rivera, Luis Felipe
A2 - Aranzazu-Suescun, Catalina
PB - Latin American and Caribbean Consortium of Engineering Institutions
T2 - 19th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology: "Prospective and Trends in Technology and Skills for Sustainable Social Development" and "Leveraging Emerging Technologies to Construct the Future", LACCEI 2021
Y2 - 19 July 2021 through 23 July 2021
ER -