Title
Bioremediation of Arsenic, Chromium, Lead and Mercury
Author
Abebowale Adeniji
Publication
National Network of Environmental Management Studies Fellow for the U.S. EPA, August, 2004
Title
Bioremediation of Arsenic and Lead by Plants and Microbes from Contaminated Soil
Author
Mohd Sayeed Akhtar, Birtaut Chali,Tanweer Azam
Publication
Science and Education Publishing
Link
http://pubs.sciepub.com/plant/1/3/4/
Abstract
The persistence of heavy metals in the environment may pollute or contaminate soils and aqueous streams as both natural components or as the result of human activity. Bioremediation process in this regards is an option that offers the possibility to destroy or render harmless various contaminants using plants and microbes. Amongst the various bioremediation processes, phytoremediation and bioremediation by microbes are quite effective. Phytoremediation includes the removal of contaminants with the help of green plants, while the microbial bioremediation includes the removal of heavy metals by microorganisms (bacteria, fungi, yeast and algae) as sorbets. Amongst the various heavy metal contaminants arsenic and lead are recognized as the leading toxicants worldwide and having the various toxic effects on human and animal health as well as on the environment. The aim of this article is to give an overview of the arsenic and lead contaminant in soil and also the mechanism of removal of these toxic metals from the contaminated sources by the potent application of plants and microbes.
Title
A General Essay on Bioremediation of Contaminated Soil
Author
Dana L. Donlon and J. W. Bauder
Publication
Montana University
Link
http://waterquality.montana.edu/docs/methane/Donlan.shtml
Abstract
Bioremediation is defined as use of biological processes to degrade, break down, transform, and/or essentially remove contaminants or impairments of quality from soil and water. Bioremediation is a natural process which relies on bacteria, fungi, and plants to alter contaminants as these organisms carry out their normal life functions. Metabolic processes of these organisms are capable of using chemical contaminants as an energy source, rendering the contaminants harmless or less toxic products in most cases. This paper summarizes the general processes of bioremediation within the soil environment, focusing on biodegradation of petroleum hydrocarbons. The effect of soil conditions on rate of biodegradation of hydrocarbons is addressed. Further, limitations and potential of both ex situ and in situ bioremediation as viable alternatives to conventional remediation are explained and addressed.
Title
Bioremediation of Arsenic, Chromium, Lead and Mercury
Author
Abebowale Adeniji