Biosorption Of Heavy Metals By Free And Immobilized Cells Of Pseudomonas Aeruginosa And Bacillus Subtilis Isolated From Garden Soils PDF Download
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Author | : Prem Jose Vazhacharickal |
Publisher | : Prem Jose |
Total Pages | : 50 |
Release | : 2018-04-27 |
Genre | : Reference |
ISBN | : 1980943540 |
Download Biosorption of heavy metals by free and immobilized cells of Pseudomonas aeruginosa and Bacillus subtilis isolated from garden soils Book in PDF, ePub and Kindle
Human populations need methods and technologies to clean waters and diminish the environmental dangers related to technological progress. Biosorption can be one such solution to clean up metal contamination. In the present study P.aeruginosa and B.subtilis was isolated from rhizosphere soil by serial dilution and plate count technique. Both free and immobilized form of isolates were tested for the biosorption of chromium (Cr), molybdenum (Mo), iron (Fe) and copper (Cu). Both the strains were able to remove metal from solutions. Free cells of B.subtilis and P.aeruginosa showed maximum iron removal 86.6% and 92.2% respectively. Free cells of B.subtilis is better in chromium removal (92%) that P.aeruginosa. and B.subtilis was equally effective in the removal of copper (98.1%). Maximum microorganism removal was observed with immobilized cells of B.subtilis; 87.5%. agitation increases the rate of biosorption when compared to static condition. The experiments were also conducted at 37°C and showed slight increase in the rate of biosorption. Microbial metal bioremediation is an efficient strategy due to its low cost, high efficiency and eco-friendly nature. This work summarize the potential of micros in metals remediation.
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Download Biosorption of Heavy Metals Using Individual and Mixed Cultures of Pseudomonas Aeruginosa and Bacillus Subtilis Book in PDF, ePub and Kindle
Biosorption can be an effective technique for the treatment of heavy metal bearing waste water resulting from humuns and industrial activities. Several gram positive and gram negative bacteria have the ability to remove the heavy metals and there by making water contaminant free. It has been reported that attenuated bacterial biomass have greater biosorption capability than viable cells. In the present study, the biosorption of heavy metals using individual and mixed culture of attenuated bacteria (gram positive and gram negative) like Bacillus subtilis and Pseudomonas aeruginosa and parameters affecting the biosorption of heavy metals; such as time, pH, biomass concentration and initial metal concentration have been investigated. The batch experiments have been carried out using individual and mixed bacterial culture and the biosorption parameters were optimized using univariate procedures. The present study shows that 90.4% of biosorption of Mercury was observed for mixed cultures of Pseudomonas aeruginosa and Bacillus subtilis and 99.3% and 78.5% biosorption for individual cultures respectively. The time taken for maximum sorption of Mercury was 60, 40 and 40 minutes for mixed cultures of Pseudomonas aeruginosa and Bacillus subtilis. The optimum biomass concentration was found to be 2, 0.5 and 2.5 mg/ml for mixed cultures, Pseudomonas aeruginosa and Bacillus subtilis. pH 5 was found to be optimum for all the three biomass (two individual cultures; one mixed culture) for Mercury biosorption. Optimum temperature was $32\, ^{\circ}C$ for all the three systems used in the present work. Adsorption isotherms of all the three metals with mixed cultures were best fitted with Langmuir and Freundlich isotherm models having highest value of regression coefficients with R2 0.99 which is close to one. Two kinetic models namely pseudo first order equation and pseudo second order equation were also tested for the biosorption processes. The biosorption of Chromium (VI) shows that.
Author | : Bohumil Volesky |
Publisher | : CRC Press |
Total Pages | : 414 |
Release | : 1990-08-15 |
Genre | : Science |
ISBN | : 9780849349171 |
Download Biosorption of Heavy Metals Book in PDF, ePub and Kindle
This state-of-the-art volume represents the first comprehensively written book which focuses on the new field of biosorption. This fascinating work conveys essential fundamental information and outlines the perspectives of biosorption. It summarizes the metal-sorbing properties of nonliving bacterial, fungal, and algal biomass, plus highlights relevant metal-binding mechanisms. This volume also discusses the aspects of obtaining and processing microbial biomass and metal-chelating chemicals into industrially applicable biosorbent products. Microbiologists, chemists, and engineers with an interest in new technological and scientific horizons will find this reference indispensable.
Author | : Pavel Kotrba |
Publisher | : Springer Science & Business Media |
Total Pages | : 334 |
Release | : 2011-01-13 |
Genre | : Science |
ISBN | : 9400704437 |
Download Microbial Biosorption of Metals Book in PDF, ePub and Kindle
Heavy metals always pose serious ecological risks when released into the environment due to their elemental non-degradable nature, regardless of their chemical form. This calls for the development of efficient and low-cost effluent treatment and metal recuperation technologies for contaminated waste water, not only because regulatory limits need to be met but also because the waste itself can be a resource for certain precious metals. Biosorption is a general property of living and dead biomass to rapidly bind and abiotically concentrate inorganic or organic compounds from even very diluted aqueous solutions. As a specific term, biosorption is a method that utilizes materials of biological origin – biosorbents formulated from non-living biomass - for the removal of target substances from aqueous solutions. Recent research on biosorption provides a solid understanding of the mechanism underlying microbial biosorption of heavy metals and related elements. This book gathers review articles analyzing current views on the mechanism and (bio)chemistry of biosorption, the performance of bacterial, fungal and algal biomass, and the practical aspects of biosorbent preparation and engineering. It also reviews the physico-chemical evaluations of biosorbents and modelling of the process as well as the importance of biosorption during heavy metal removal using living cells. It is a reference work for scientists, environmental safety engineers and R&D specialists who wish to further promote biosorption research and use the accumulated knowledge to develop and build industrial applications of biosorption in heavy metal separation technologies.
Author | : Thomas H. Jeffers |
Publisher | : |
Total Pages | : 20 |
Release | : 1993 |
Genre | : Heavy metals |
ISBN | : |
Download Biosorption of Metal Contaminants Using Immobilized Biomass Book in PDF, ePub and Kindle
Author | : Jan Derco |
Publisher | : BoD – Books on Demand |
Total Pages | : 159 |
Release | : 2018-07-18 |
Genre | : Science |
ISBN | : 1789234727 |
Download Biosorption Book in PDF, ePub and Kindle
Municipal and industrial wastewaters contain a wide spectrum of pollutants. Their effective removal presents a challenge for water treatment technology. Biosorption of nutrients and pollutants has been used in sewage treatment since the discovery of the activated sludge process. It is a passive uptake process by which pollutants are adsorbed on the surface of cell walls and/or dissolved in structures of microorganism cells that are present in sludge. Sorbed pollutants remain in the sludge and can be potentially released back into the environment depending on their condition and the reversibility of the pollutant-sludge interaction. An overview of typical biosorption applications for the removal of nutrients, organic pollutants, and metals in wastewater treatment is provided in different areas of their use for the protection of aquatic ecosystems and human health. This book will be of interest to operators of wastewater treatment plants and sludge treatment and disposal facilities as well as to researchers and university students in the field of environmental engineering.
Author | : Surajit Das |
Publisher | : CRC Press |
Total Pages | : 1149 |
Release | : 2017-04-07 |
Genre | : Science |
ISBN | : 1351649396 |
Download Handbook of Metal-Microbe Interactions and Bioremediation Book in PDF, ePub and Kindle
Around the World, metal pollution is a major problem. Conventional practices of toxic metal removal can be ineffective and/or expensive, delaying and exacerbating the crisis. Those communities dealing with contamination must be aware of the fundamentals advances of microbe-mediated metal removal practices because these methods can be easily used and require less remedial intervention. This book describes innovations and efficient applications for metal bioremediation for environments polluted by metal contaminates.
Author | : Pavel Kotrba |
Publisher | : Springer |
Total Pages | : 344 |
Release | : 2011-03-30 |
Genre | : |
ISBN | : 9789400704442 |
Download Microbial Biosorption of Metals Book in PDF, ePub and Kindle
Heavy metals always pose serious ecological risks when released into the environment due to their elemental non-degradable nature, regardless of their chemical form. This calls for the development of efficient and low-cost effluent treatment and metal recuperation technologies for contaminated waste water, not only because regulatory limits need to be met but also because the waste itself can be a resource for certain precious metals. Biosorption is a general property of living and dead biomass to rapidly bind and abiotically concentrate inorganic or organic compounds from even very diluted aqueous solutions. As a specific term, biosorption is a method that utilizes materials of biological origin biosorbents formulated from non-living biomass - for the removal of target substances from aqueous solutions. Recent research on biosorption provides a solid understanding of the mechanism underlying microbial biosorption of heavy metals and related elements. This book gathers review articles analyzing current views on the mechanism and (bio)chemistry of biosorption, the performance of bacterial, fungal and algal biomass, and the practical aspects of biosorbent preparation and engineering. It also reviews the physico-chemical evaluations of biosorbents and modelling of the process as well as the importance of biosorption during heavy metal removal using living cells. It is a reference work for scientists, environmental safety engineers and R&D specialists who wish to further promote biosorption research and use the accumulated knowledge to develop and build industrial applications of biosorption in heavy metal separation technologies.
Author | : Adedirin Oluwaseye |
Publisher | : LAP Lambert Academic Publishing |
Total Pages | : 132 |
Release | : 2012-04 |
Genre | : |
ISBN | : 9783848494071 |
Download Textbook on Adsorption of Heavy Metals from Aqueous Systems Book in PDF, ePub and Kindle
This book, Removal of Heavy Metals from aqueous Systems, is a complete, up-to-date book on different methods employed to remove metal ions from aqueous solution. The topics in this book are properly treated and presented in such a way that facilitate easy comprehension. The chapters are attractively arranged and emphasis has been placed on the use of immobilized bacterial cells such as Escherichia coli and Bacillus subtilis on agarose to remove heavy metals from aqueous solution in a phenomenon known as biosorption. What makes this book unique is its practical approach through experiment and the use of various mathematical relation(isotherms) to explain the adsorption process. Chemistry and chemical engineering student at BSc. and MSc. level will find this book handy in the same ways teacher will benefit from it
Author | : Ramesh Chandra Dubey |
Publisher | : Academic Press |
Total Pages | : 566 |
Release | : 2022-02-15 |
Genre | : Technology & Engineering |
ISBN | : 0323885950 |
Download Rhizosphere Engineering Book in PDF, ePub and Kindle
Rhizosphere Engineering is a guide to applying environmentally sound agronomic practices to improve crop yield while also protecting soil resources. Focusing on the potential and positive impacts of appropriate practices, the book includes the use of beneficial microbes, nanotechnology and metagenomics. Developing and applying techniques that not only enhance yield, but also restore the quality of soil and water using beneficial microbes such as Bacillus, Pseudomonas, vesicular-arbuscular mycorrhiza (VAM) fungi and others are covered, along with new information on utilizing nanotechnology, quorum sensing and other technologies to further advance the science. Designed to fill the gap between research and application, this book is written for advanced students, researchers and those seeking real-world insights for improving agricultural production. Explores the potential benefits of optimized rhizosphere Includes metagenomics and their emerging importance Presents insights into the use of biosurfactants