Can I read Continuous Fixed-bed Column Studies to Remove Polycyclic Aromatic Hydrocarbons by Degrading Enzymes Immobilized on Polyimide Aerogels on EtoBox?

Continuous Fixed-bed Column Studies to Remove Polycyclic Aromatic Hydrocarbons by Degrading Enzymes Immobilized on Polyimide Aerogels by Seyyed Mohammadreza Davoodi; Saba Miri; Satinder Kaur Brar; Richard Martel is a Environmental Science article available to read on EtoBox.

What is Continuous Fixed-bed Column Studies to Remove Polycyclic Aromatic Hydrocarbons by Degrading Enzymes Immobilized on Polyimide Aerogels about?

The main sources of polycyclic aromatic hydrocarbons (PAHs), entering aquatic environments are industrial discharges, petroleum spills, combustion of fossil fuels, urban runoff, and atmospheric deposition. For the biodegradation of PAHs, the use of biocatalysts, such as enzymes, is an environmentally friendly method. Despite this, it is necessary to immobilize the enzymes to facilitate their recovery and reusability, as well as to prevent their loss. Using covalent bonding, (PAHs) degrading enzymes including naphthalene and catechol 2,3 dioxygenase enzymes were immobilized on modified polyimide aerogels. Covalent immobilization of enzymes on surface-modified polyimide aerogels resulted in around 9-and 6-fold lower enzyme leaching for naphthalene and catechol 2,3 dioxygenase enzymes compared to enzyme immobilization using adsorption. The Fourier Transform Infrared Spectrum (FT-IR) confirmed the enzyme immobilization and aerogel modification. SEM images indicated completely different textures for surface-modified aerogel attributed to the presence of functional groups after surface modification that enhanced enzyme loading. The removal capacity (∼ 20 mg anthracene g aerogel ) of enzy

Who reads Continuous Fixed-bed Column Studies to Remove Polycyclic Aromatic Hydrocarbons by Degrading Enzymes Immobilized on Polyimide Aerogels?

Author

Seyyed Mohammadreza Davoodi; Saba Miri; Satinder Kaur Brar; Richard Martel

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)