TITLE:
A Review Article: Electrokinetic Bioremediation Current Knowledge and New Prospects
AUTHORS:
Ikrema Hassan, Eltayeb Mohamedelhassan, Ernest K. Yanful, Ze-Chun Yuan
KEYWORDS:
Bioremediation, Bioaugmentation, Biostimulation, Electokinetics, Contamination
JOURNAL NAME:
Advances in Microbiology,
Vol.6 No.1,
January
28,
2016
ABSTRACT: This study discusses
factors affecting various processes involved in bioremediation coupled with
electrokinetics. The study presents innovative solutions, and proposes new
directions. Environmental conditions that have an influence on the
characteristics, behavior, and metabolism of indigenous microorganisms are
presented. The discussion focuses on overcoming the unfavorable conditions
created by electrolysis reactions, prolongation the survival of the microbes at
contaminated sites, increase of microbial enzyme secretion, improvement of the
indigenous bacteria metabolic pathways, and exploration of metagenomics
resources from soil biota. The challenge facing the implementation of
conventional bioremediation techniques in precisely and effectively delivering
nutrients to indigenous bacteria, particularly in soils with tortuous paths and
low hydraulic conductivity is discussed. Current knowledge in application of
enhanced biostimulation using electrokinetics is reviewed. The implementation
of bioaugmentation in bioremediation coupled with electrokinetics to enhance
the outcome of bioremediation is presented. Effects of phenomena associated
with electrokinetics in the hybrid remediation approach are discussed.