Scholarly open access journals, Peer-reviewed, and Refereed Journals, Impact factor 8.14 (Calculate by google scholar and Semantic Scholar | AI-Powered Research Tool) , Multidisciplinary, Monthly, Indexing in all major database & Metadata, Citation Generator, Digital Object Identifier(DOI)
Abstract
There are various ways in which agricultural soil become polluted with hazardous compounds some of which are through the use of farm inputs such as herbicides and pesticides which may persist for a very long period in the soil or through the disposal of industrial waste as effluent discharge or through house hold discharge arising from the use of detergent and other wastes which causes tremendous consequences on the soils. It’s therefore necessary to remove these dangerous compounds that accumulate in the soil. The techniques nowadays employ to detoxify the soil of toxic waste is by the application of microorganism, which is known as bioremediation. The microbes use this toxic substrate as their energy source thereby degrading it into a harmless substance and restoring the soil to its original form. Some of the microorganisms are genetically modified to enhance their performance effectively. The process adopted in bioremediation technology is divided into two aspects namely ex situ and In situ bioremediation. In ex situ the techniques involves excavation of the contaminated soil and treating it elsewhere, while In situ bioremediation the contaminated soil is treated on site without transporting it to another place. The systems make use of microbes inhabiting that area of the contaminated site or they may be brought to the environment elsewhere for the remediation. For remediating pesticides contaminated soils the methods adopted are biostimulation and bioaugmentation. The techniques of In situ bioremediation include bioventing, Airsparging, Bioslurping, pump and treat, percolation and permeable reaction barriers and phytoremidiation. Ex situ bioremediation consist of Land farming, biopiling, windrow and bioreactor. Some of the factors affecting bioremediation are Microbial population, availability of contaminant, temperature, pH nutrients availability, water activity and osmotic pressure among others. Another aspect of remediation is composting which are rich sources of xenobiotic-degrading microorganisms including bacteria, actinomycetes and lignolytic fungi, which can degrade pollutants to harmless compounds such as carbon dioxide and water.
Keywords:
Bioremediation, bioventing, Airsparging, Bioslurping, pump and treat and composting
Cite Article:
"Bioremediation Process and Techniques a Strategy to Restore Agricultural Soil Productivity: A Review", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 12, page no.413 - 424, December-2022, Available :http://www.ijrti.org/papers/IJRTI2212055.pdf
Downloads:
000205297
ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator