Biotechnological advances in bioremediation of heavy metals contaminated ecosystems: an overview with special reference to phytoremediation

Mani, Dinesh; Kumar, Chitranjan

doi:10.1007/s13762-013-0299-8

Cited by 514 publications

(173 citation statements)

References 189 publications

(276 reference statements)

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“…phenols and detergents (Aonghusa and Gray 2002;Petrovic et al 2003;Wang et al 2010a) in municipal wastewater along with the nutrients is a matter of concern, because microalgae can sequester these compounds (Mani and Kumar 2014;Nacorda et al 2007;Richards and Mullins 2013;Wang et al 2010a). These heavy metals interfere with the uptake of macronutrients, as a result of common transporters (Levy et al 2005;Thiel 1988).…”

Section: Heavy Metal Removal By Microalgae In Wastewatermentioning

confidence: 99%

Phycoremediation of wastewaters: a synergistic approach using microalgae for bioremediation and biomass generation

Renuka

Sood

Prasanna

et al. 2014

Int. J. Environ. Sci. Technol.

167

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Discharge of untreated domestic and industrial wastewater into aquatic bodies is posing a serious eutrophication threat, leading to a slow degradation of the water resources. A number of physical, chemical and biological methods have been developed for the treatment of wastewaters; among these, the use of microalgae is considered as a more eco-friendly and economical approaches. Microalgae are versatile organisms which perform multiple roles in the environment-bioremediation of wastewater, gleaning of excess nutrients and in turn, generate valuable biomass which finds applications in the food, biofuel and pharmaceutical industries. They are currently being utilized to reduce the high nutrient load (especially N and P) from wastewaters, which fulfill the growth requirements of microalgae, making it a suitable cultivation medium for biomass production. The present review represents a comprehensive compilation of reports on microalgal diversity of wastewaters, followed by a critical overview of their utilization, suitability and potential in bioremediation vis-a-vis biomass production. This review also emphasizes the superiority of polyalgal and consortial approaches in wastewater treatment, as compared to the use of unialgal inocula, besides providing useful pointers for future research needs in this area.

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Section: Heavy Metal Removal By Microalgae In Wastewatermentioning

confidence: 99%

Phycoremediation of wastewaters: a synergistic approach using microalgae for bioremediation and biomass generation

Renuka

Sood

Prasanna

et al. 2014

Int. J. Environ. Sci. Technol.

167

View full text Add to dashboard Cite

show abstract

“…In this case, bioremediation is often limited only to analyses in specialized laboratories in experimental closed systems, eg in a special microcosms, mesocosms, bioreactors, hydroponics and green houses. Such research is not conducted in the natural conditions in soil [12].…”

Section: Resultsmentioning

confidence: 99%

“…They are usually added to soil to stimulate the growth of microorganisms by supplementing nutrients (nitrogen and phosphorus), electron acceptors (oxygen), and substrates (methane) [12]. Nutrients are added to soil in order to increase the efficiency of decomposition of organic compounds eg PAHs and improve conditions for the growth of plants used in phytoremediation of soils contaminated with heavy metals [13,14].…”

Section: Application Of Chemical Compoundsmentioning

confidence: 99%

The ways to increase efficiency of soil bioremediation

Wołejko

Wydro

Loboda

2016

Ecological Chemistry and Engineering S

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Abstract:The aim of this paper was to present possibilities of using different substrates to assist the bioremediation of soils contaminated with heavy metals, pesticides and other substances. Today's bioengineering offers many solutions that enable the effective conduct of biological remediation, including both biostimulation and bioaugmentation. For this purpose, they are used to enrich various organic substances, sorbents, microbiological and enzymatic preparations, chemical substances of natural origin or nanoparticles. The use of genetic engineering as a tool to obtain microorganisms and plants capable of efficient degradation of pollutants may cause the risks that entails the introduction of transgenic plants and microorganisms into the environment. In order to determine the efficacy and possible effects of the various bioremediation techniques, it is required to conduct many studies and projects on a larger scale than only in the laboratory. Furthermore, it should be emphasized that bioremediation involves interdisciplinary issues and therefore, there is a need to combine knowledge from different disciplines, such as: microbiology, biochemistry, ecology, environmental engineering and process engineering.

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“…To clean the environment, cooperation, integration and assimilation of such biotechnological advances are required (Mani and Kumar 2013).…”

Section: Strategies To Reduce Metal Contamination From Aquatic Systemmentioning

confidence: 99%

Remediation of heavy metal contaminated ecosystem: an overview on technology advancement

Singh

Prasad

2014

Int. J. Environ. Sci. Technol.

141

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The issue of heavy metal pollution is very much concerned because of their toxicity for plant, animal and human beings and their lack of biodegradability. Excess concentrations of heavy metals have adverse effects on plant metabolic activities hence affect the food production, quantitatively and qualitatively. Heavy metal when reaches human tissues through various absorption pathways such as direct ingestion, dermal contact, diet through the soil-food chain, inhalation and oral intake may seriously affect their health. Therefore, several management practices are being applied to minimize metal toxicity by attenuating the availability of metal to the plants. Some of the traditional methods are either extremely costly or they are simply applied to isolate contaminated site. The biology-based technology like use of hypermetal accumulator plants occurring naturally or created by transgenic technology, in recent years draws great attention to remediate heavy metal contamination. Recently, applications of nanoparticle for metal remediation are also attracting great research interest due to their exceptional adsorption and mechanical properties and unique electrical property, highly chemical stability, and large specific surface area. Thus, the present review deals with different management approaches to reduce level of metal contamination in soil and finally to the food chain.

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Biotechnological advances in bioremediation of heavy metals contaminated ecosystems: an overview with special reference to phytoremediation

Cited by 514 publications

References 189 publications

Phycoremediation of wastewaters: a synergistic approach using microalgae for bioremediation and biomass generation

Phycoremediation of wastewaters: a synergistic approach using microalgae for bioremediation and biomass generation

The ways to increase efficiency of soil bioremediation

Remediation of heavy metal contaminated ecosystem: an overview on technology advancement

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