Biominerlisation as a Remediation Technique: A Critical Review

Jain, Surabhi; Arnepalli, Dali Naidu

doi:10.1007/978-981-13-0899-4_19

Cited by 30 publications

(22 citation statements)

References 14 publications

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“…It utilizes the biological mechanisms inherent in microbes and plants to eradicate hazardous pollutants and restore the ecosystem to its original condition [ 9 ]. The basic principles of bioremediation involve reducing the solubility of these environmental contaminants by changing pH, the redox reactions and adsorption of contaminants from polluted environment [ 12 ]. Various reports have been made on enhancing biosorption of pentachlorophenol (PCP) by altering the pH levels in aqueous solutions.…”

Section: Bioremediationmentioning

confidence: 99%

Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review

Ojuederie

Babalola

2017

IJERPH

816

239

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Environmental pollution from hazardous waste materials, organic pollutants and heavy metals, has adversely affected the natural ecosystem to the detriment of man. These pollutants arise from anthropogenic sources as well as natural disasters such as hurricanes and volcanic eruptions. Toxic metals could accumulate in agricultural soils and get into the food chain, thereby becoming a major threat to food security. Conventional and physical methods are expensive and not effective in areas with low metal toxicity. Bioremediation is therefore an eco-friendly and efficient method of reclaiming environments contaminated with heavy metals by making use of the inherent biological mechanisms of microorganisms and plants to eradicate hazardous contaminants. This review discusses the toxic effects of heavy metal pollution and the mechanisms used by microbes and plants for environmental remediation. It also emphasized the importance of modern biotechnological techniques and approaches in improving the ability of microbial enzymes to effectively degrade heavy metals at a faster rate, highlighting recent advances in microbial bioremediation and phytoremediation for the removal of heavy metals from the environment as well as future prospects and limitations. However, strict adherence to biosafety regulations must be followed in the use of biotechnological methods to ensure safety of the environment.

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Section: Bioremediationmentioning

confidence: 99%

Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review

Ojuederie

Babalola

2017

IJERPH

816

239

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“…MICP processes have been used for remediation of contaminants, as reported in literature, with varying degrees of success [61,[127][128][129][130][131][132][133][134][181][182][183]. Jain and Arnepalli [184] reported that bioremediation involves several chemical and biological approaches such as biomineralization, bioaccumulation, biosorption, bioimmobilization, phytoremediation, etc. They further stated that it is a cost-effective and environmentally friendly remediation technique, as it remediates contaminants by adsorption.…”

Section: Remediation Of Contaminantsmentioning

confidence: 99%

Review of the use of microorganisms in geotechnical engineering applications

et al. 2020

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Until recently, engineers either ignored or neglected the role of microorganisms in geotechnical engineering. The microbially induced calcite precipitation (MICP) research technique is an innovative and relatively green technology which consists in a biological process through which microorganisms react with minerals (calcium source and cementation reagent) to produce calcite (CaCO 3 ) as a byproduct that modifies and improves the engineering properties of soil. Laboratory and field results obtained from various studies are promising and viable, suggesting potential for various engineering applications. This research technique has also been considered to be useful in many engineering applications such as improvement of construction materials, cementation of porous media, improvement in strength and stiffness of engineering soils, hydraulic control of engineering facilities (waste containment), liquefaction, and erosion mitigation. In this review, the various methods of production of calcium carbonates (calcite), the role played by bacteria, various state-of-the-art procedures that have evolved in this research area, as well as ongoing studies are reported. Furthermore, the use of the MICP technique in remediation of contaminants and other environmental concerns is also presented. The advantages and challenges (in form of undesired byproducts) of this research technique are highlighted herein.

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“…This process is facilitated through the ingress of water, CO 2 and other chemical substances such as SO 4 and NO − 3 , among others (De Muynck et al, 2008;Jonkers et al, 2010;Dhami et al, 2014;Bundur et al, 2015;Verma et al, 2015), aids in self-healing and improves the physical and mechanical properties of the concrete structure. Of late, several reviews have been published on biotechnological aspects of bioconcrete (Zhu and Dittrich, 2016;Joshi et al, 2017;Krajewska, 2018;Jain and Arnepalli, 2019), but microbiological and molecular concepts of MICP and the mechanisms of MICP by different microbial groups have not yet been reported. In this review, types of biomineralization processes, metabolic pathways employed by diverse microbial groups and the genetic factors in relation to urease and carbonic anhydrase activities associated with MICP are discussed.…”

Section: Introductionmentioning

confidence: 99%

Microbially Induced Calcium Carbonate Precipitation (MICP) and Its Potential in Bioconcrete: Microbiological and Molecular Concepts

et al. 2019

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In this review, we discuss microbiological and molecular concepts of Microbially Induced Calcium Carbonate Precipitation (MICP) and their role in bioconcrete. MICP is a widespread biochemical process in soils, caves, freshwater, marine sediments, and hypersaline habitats. MICP is an outcome of metabolic interactions between diverse microbial communities with organic and/or inorganic compounds present in the environment. Some of the major metabolic processes involved in MICP at different levels are urea hydrolysis, denitrification, dissimilatory sulfate reduction, and photosynthesis. Currently, MICP directed by urea hydrolysis, denitrification, and dissimilatory sulfate reduction has been reported to aid in the development of bioconcrete and has demonstrated an improvement in the mechanical and durability properties of concrete. Bioconcrete is a promising sustainable technology which reduces negative environmental impact caused by CO 2 emissions from the construction sector, as well as in terms of economic benefits by way of promoting a self-healing process of concrete structures. Among the metabolic processes mentioned above, urea hydrolysis is the most applied in concrete repair mechanisms. MICP by urea hydrolysis is induced by a series of reactions driven by urease (Ur) and carbonic anhydrase (CA). Catalytic activity of these two enzymes depends on diverse parameters, which are currently being studied under laboratory conditions to better understand the biochemical mechanisms involved and their regulation in microorganisms. It is clearly evident that microbiological and molecular components are essential to improving the process and performance of bioconcrete.

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Biominerlisation as a Remediation Technique: A Critical Review

Cited by 30 publications

References 14 publications

Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review

Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review

Review of the use of microorganisms in geotechnical engineering applications

Microbially Induced Calcium Carbonate Precipitation (MICP) and Its Potential in Bioconcrete: Microbiological and Molecular Concepts

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