Author
Narsi R. Bishnoi
Other affiliations: All India Institute of Medical Sciences
Bio: Narsi R. Bishnoi is an academic researcher from Guru Jambheshwar University of Science and Technology. The author has contributed to research in topics: Biosorption & Biomass. The author has an hindex of 35, co-authored 96 publications receiving 3806 citations. Previous affiliations of Narsi R. Bishnoi include All India Institute of Medical Sciences.
Topics: Biosorption, Biomass, Ethanol fuel, Freundlich equation, Cellulase
Papers published on a yearly basis
Papers
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TL;DR: The amounts of Cr(VI) adsorbed increased with increase in dose of both adsorbents and their contact time, and the maximum removal occurred at pH 2 by activated rice husk and at pH 4 by activated alumina.
358 citations
TL;DR: In this paper, the influence of pH of the solution, biosorbents dose, concentration of ions and contact time on biosorption capacity of Cr(VI) ions was studied.
291 citations
TL;DR: The results suggest that both AA and AC could be used as effective adsorbents for the removal of Cr(VI) ions.
282 citations
TL;DR: The FTIR spectrum of the sulphate reducing bacteria consortium clearly shows the existence of the sulfate ions and signifies that sulfate reducingacteria have used sulfate during the growth phase.
147 citations
TL;DR: In the present investigation, a fresh water green algae spirogyra spp.
146 citations
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TL;DR: In this article, the range of heavy metals, their occurrence and toxicity for plants, and their effects on the ecosystem is discussed, where the authors focus mainly on zinc, cadmium, copper, mercury, chromium, lead, arsenic, cobalt, nickel, manganese and iron.
Abstract: Metal contamination issues are becoming increasingly common in India and elsewhere, with many documented cases of metal toxicity in mining industries, foundries, smelters, coal-burning power plants and agriculture. Heavy metals, such as cadmium, copper, lead, chromium and mercury are major environmental pollutants, particularly in areas with high anthropogenic pressure. Heavy metal accumulation in soils is of concern in agricultural production due to the adverse effects on food safety and marketability, crop growth due to phytotoxicity, and environmental health of soil organisms. The influence of plants and their metabolic activities affects the geological and biological redistribution of heavy metals through pollution of the air, water and soil. This article details the range of heavy metals, their occurrence and toxicity for plants. Metal toxicity has high impact and relevance to plants and consequently it affects the ecosystem, where the plants form an integral component. Plants growing in metal-polluted sites exhibit altered metabolism, growth reduction, lower biomass production and metal accumulation. Various physiological and biochemical processes in plants are affected by metals. The contemporary investigations into toxicity and tolerance in metal-stressed plants are prompted by the growing metal pollution in the environment. A few metals, including copper, manganese, cobalt, zinc and chromium are, however, essential to plant metabolism in trace amounts. It is only when metals are present in bioavailable forms and at excessive levels, they have the potential to become toxic to plants. This review focuses mainly on zinc, cadmium, copper, mercury, chromium, lead, arsenic, cobalt, nickel, manganese and iron.
2,898 citations
TL;DR: In this article, the authors reviewed the recent developments and technical applicability of various treatments for the removal of heavy metals from industrial wastewater and evaluated their advantages and limitations in application, including adsorption on new adsorbents, membrane filtration, electrodialysis, and photocatalysis.
2,419 citations
TL;DR: The potential of plants with the capacity to accumulate or to stabilize Cr compounds for bioremediation of Cr contamination has gained interest in recent years.
1,752 citations
TL;DR: The sorption capacities of commercial developed carbons and other low cost sorbents for chromium remediation are provided, and particular attention is paid to comparing the sorption efficiency and capacities of commercially available activated carbons to otherLow cost alternatives.
1,611 citations
TL;DR: Distinctive adsorption equilibria and kinetic models are of extensive use in explaining the biosorption of heavy metals, denoting the need to highlight and summarize their essential issues, which is the main purpose of this paper.
1,471 citations