Chemical, Biological and Physical Factors Controlling Zn Bioaccumulation by Chlorella Kesslerii PDF Download

Author: Christel Hassler
Publisher:
ISBN:
Category :
Languages : en
Pages : 155

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Book Description
L'application de deux modèles, couramment utilisés afin de prédire la bioaccumulation des métaux, a été étudiée dans le cadre de l'interaction du Zn avec une algue verte. Pour cela, les flux d'internalisation de métal ont été étudiés en relation avec la spéciation (i) en solution (FIAM) et (ii) à la surface de l'organisme (BLM). Ni le FIAM, ni le BLM ne permettent de prédire la bioaccumulation du Zn chez "Chlorella" en absence et en présence de compétiteur. Les hypothèses sous-jacentes de ces modèles ont dès lors été vérifiées. Dans ce cas, l'accumulation de Zn n'est pas prévisible en raison d'une limitation due à la diffusion en solution, de l'existence d'un système de transport multiple et actif, de l'influence des conditions de croissance de l'algue et de l'existence d'un système d'excrétion. Ces diverses observations permettent d'aborder l'importance de la régulation biologique sur l'accumulation à court terme des métaux essentiels.

Author: Bohumil Volesky
Publisher: CRC Press
ISBN: 9780849349171
Category : Science
Languages : en
Pages : 414

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Book Description
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: Vinod Kumar
Publisher: Agro Environ Media, Publication Cell of AESA, Agriculture and Environmental Science Academy,
ISBN: 819420173X
Category : Young Adult Nonfiction
Languages : en
Pages : 229

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Book Description
Advances in Environmental Pollution Management: Wastewater Impacts and Treatment Technologies has been designed to bind novel knowledge of wastewater pollution-induced impacts on various aspects of our environment. The book also contains novel methods and tools for the monitoring and treatment of produced wastewater.

Author: Abu Yousuf
Publisher: Academic Press
ISBN: 0128175370
Category : Technology & Engineering
Languages : en
Pages : 384

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Book Description
Microalgae Cultivation for Biofuels Production explores the technological opportunities and challenges involved in producing economically competitive algal-derived biofuel. The book discusses efficient methods for cultivation, improvement of harvesting and lipid extraction techniques, optimization of conversion/production processes of fuels and co-products, the integration of microalgae biorefineries to several industries, environmental resilience by microalgae, and a techno-economic and lifecycle analysis of the production chain to gain maximum benefits from microalgae biorefineries. - Provides an overview of the whole production chain of microalgal biofuels and other bioproducts - Presents an analysis of the economic and sustainability aspects of the production chain - Examines the integration of microalgae biorefineries into several industries

Author: Sunita J. Varjani
Publisher: Springer
ISBN: 9811074348
Category : Technology & Engineering
Languages : en
Pages : 398

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Book Description
This book provides a comprehensive review of biosynthetic approaches to the production of industrially important chemicals and the environmental challenges involved. Its 19 chapters discuss different aspects of biosynthetic technology from the perspective of leading experts in the field. It covers various biorefinery approaches, including the use of microbes, metabolically engineered plants, biomass-based and green technology methods. Further, it examines important research in the areas of organic and hazardous waste composting, management and recovery of nutraceuticals from agro-industrial waste, biosynthesis and technological advancements of biosurfactants and waste water bioremediation. This book contributes to the scientific literature on biosynthetic technologies and the related environmental challenges for researchers and academics working in this area around the globe.

Author:
Publisher:
ISBN:
Category : Algology
Languages : en
Pages : 958

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Book Description

Author: Ram Naresh Bharagava
Publisher: Springer
ISBN: 9811086699
Category : Science
Languages : en
Pages : 443

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Book Description
Rapid industrialization is a serious concern in the context of a healthy environment. With the growth in the number of industries, the waste generated is also growing exponentially. The various chemical processes operating in the manufacturing industry generate a large number of by-products, which are largely harmful and toxic pollutants and are generally discharged into the natural water bodies. Once the pollutants enter the environment, they are taken up by different life forms, and because of bio-magnification, they affect the entire food chain and have severe adverse effects on all life forms, including on human health. Although, various physico-chemical and biological approaches are available for the removal of toxic pollutants, unfortunately these are often ineffective and traditional clean up practices are inefficient. Biological approaches utilizing microorganisms (bacterial/fungi/algae), green plants or their enzymes to degrade or detoxify environmental pollutants such as endocrine disruptors, toxic metals, pesticides, dyes, petroleum hydrocarbons and phenolic compounds, offer eco- friendly approaches. Such eco-friendly approaches are often more effective than traditional practices, and are safe for both industry workers as well as environment. This book provides a comprehensive overview of various toxic environmental pollutants from a variety natural and anthropogenic sources, their toxicological effects on the environment, humans, animals and plants as well as their biodegradation and bioremediation using emerging and eco-friendly approaches (e.g. Anammox technology, advanced oxidation processes, membrane bioreactors, membrane processes, GMOs), microbial degradation (e.g. bacteria, fungi, algae), phytoremediation, biotechnology and nanobiotechnology. Offering fundamental and advanced information on environmental problems, challenges and bioremediation approaches used for the remediation of contaminated sites, it is a valuable resource for students, scientists and researchers engaged in microbiology, biotechnology and environmental sciences.

Author: Baoshan Xing
Publisher: John Wiley & Sons
ISBN: 1119275822
Category : Science
Languages : en
Pages : 506

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Book Description
Details the source, release, exposure, adsorption, aggregation, bioavailability, transport, transformation, and modeling of engineered nanoparticles found in many common products and applications Covers synthesis, environmental application, detection, and characterization of engineered nanoparticles Details the toxicity and risk assessment of engineered nanoparticles Includes topics on the transport, transformation, and modeling of engineered nanoparticles Presents the latest developments and knowledge of engineered nanoparticles Written by world leading experts from prestigious universities and companies

Author: Amos Richmond
Publisher: John Wiley & Sons
ISBN: 1405172495
Category : Technology & Engineering
Languages : en
Pages : 587

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Book Description
Handbook of Microalgal Culture is truly a landmarkpublication, drawing on some 50 years of worldwide experience inmicroalgal mass culture. This important book comprisescomprehensive reviews of the current available information onmicroalgal culture, written by 40 contributing authors from aroundthe globe. The book is divided into four parts, with Part I detailingbiological and environmental aspects of microalgae with referenceto microalgal biotechnology and Part II looking in depth at majortheories and techniques of mass cultivation. Part III compriseschapters on the economic applications of microalgae, includingcoverage of industrial production, the use of microalgae in humanand animal nutrition and in aquaculture, in nitrogen fixation,hydrogen and methane production, and in bioremediation of pollutedwater. Finally, Part IV looks at new frontiers and includeschapters on genetic engineering, microalgae as platforms forrecombinant proteins, bioactive chemicals, heterotrophicproduction, microalgae as gene-delivery systems for expressingmosquitocidal toxins and the enhancement of marine productivity forclimate stabilization and food security. Handbook of Microalgal Culture is an essential purchasefor all phycologists and also those researching aquatic systems,aquaculture and plant sciences. There is also much of great use toresearchers and those involved in product formulation withinpharmaceutical, nutrition and food companies. Libraries in alluniversities and research establishments teaching and researchingin chemistry, biological and pharmaceutical sciences, food sciencesand nutrition, and aquaculture will need copies of this book ontheir shelves. Amos Richmond is at the Blaustein Institute for DesertResearch, Ben-Gurion University of the Negev, Israel.

Author: Bhupendra Koul
Publisher: Springer
ISBN: 9811324204
Category : Medical
Languages : en
Pages : 251

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Book Description
This book presents a comprehensive collection of various in situ and ex-situ soil remediation regimes that employ natural or genetically modified microbes, plants, and animals for the biodegradation of toxic compounds or hazardous waste into simpler non-toxic products. These techniques are demonstrated to be functionally effective in connection with physical, chemical, and biological strategies. Soil and water contamination through heavy metals, hydrocarbons and radioactive wastes is of global concern, as these factors have cumulative effects on the environment and human health through food-chain contamination. The book discusses the utilization of algae, plants, plant-associated bacteria, fungi (endophytic or rhizospheric) and certain lower animals for the sustainable bioremediation of organic and inorganic pollutants. In addition, it explores a number of more recent techniques like biochar and biofilms for carbon sequestration, soil conditioning and remediation, and water remediation. It highlights a number of recent advances in nanobioremediation, an emerging technology based on biosynthetic nanoparticles. Lastly, it presents illustrative case studies and highlights the successful treatment of polluted soils by means of these strategies.