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Impact Of Physical Chemical Properties Of Volcanic Ash Derived Soils On Mechanisms Involved During Sorption Of Ionisable And Non Ionisable Herbicides
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Book Synopsis Impact of Physical/Chemical Properties of Volcanic Ash-Derived Soils on Mechanisms Involved During Sorption of Ionisable and Non-Ionisable Herbicides by : Lizethly Caceres Jensen
Download or read book Impact of Physical/Chemical Properties of Volcanic Ash-Derived Soils on Mechanisms Involved During Sorption of Ionisable and Non-Ionisable Herbicides written by Lizethly Caceres Jensen and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volcanic ash-derived soils (VADSs) are of great importance in the agricultural economy of several emerging and developing countries. The surface-charge amphoteric characteristics will confer physical/chemical properties absolutely different to constant-charge soils. This surface reactivity will confer to them a particular behaviour in relation to the herbicide sorption, representing an environmental substrate that may become polluted over time due to intensive agronomic uses. Sorption is a key parameter to evaluate the fate and behaviour of herbicides in volcanic soils. Sorption type and kinetic sorption models are also necessary in order to develop and validate QSAR models to predict pesticide sorption on volcanic soils to prevent potential contamination of water resources. The use of solute sorption mechanism models and QSAR models for pesticide sorption in soils has contributed to a better understanding of the behaviour of pesticides on volcanic soils. This chapter is divided into five sections: Physical/chemical properties of volcanic ash-derived soils; Ionisable and non-ionisable herbicides,Äô fate and behaviour in soil; Kinetic sorption: mechanisms involved during sorption of ionisable and non-ionisable herbicides on VADS; Sorption of ionisable and non-ionisable herbicides on VADS; and Physical/chemical properties in QSAR models: a mechanistic interpretation.
Book Synopsis Advanced Sorption Process Applications by : Serpil Edebali
Download or read book Advanced Sorption Process Applications written by Serpil Edebali and published by BoD – Books on Demand. This book was released on 2019-02-20 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the beginning of the twenty-firstst century, separation processes presented a comprehensive application of the major operations performed by various industries, such as chemical, food, environmental, and biotechnology. Sorption, one of the preferred separation processes because of its effectiveness at different interfaces, has caught the attention of many scientists. This book is aimed at gaining a general knowledge of sorption and a number of extremely important applications, as well as recognizing its functions and paramount importance in chemical and biochemical plants, including environmental treatment. Moreover, progress in the phenomenon is highlighted in this book. To help provide instruction in the important sorption processes, we have chosen authors who have extensive industrial and academic experience in closing the gap between theory and practice. Crucial progress in the theoretical information section of sorption has been achieved, mainly through the development of new techniques that examine the usage of various sorbents, including nanomaterials for the removal of various pollutants. We have subdivided the book into several sections, one of which is focused on applications of the sorption process, which presents real results of the recent studies and gives a source of up-to-date literature. The relationship between the sorption process and isotherm and kinetics modeling is analyzed in another chapter. This book will be a reference book for those who are interested in sorption techniques from various industries.
Book Synopsis Herbicides Mechanisms Involved in the Sorption Kinetic of Ionisable and Non Ionisable Herbicides by : Lizethly Caceres Jensen
Download or read book Herbicides Mechanisms Involved in the Sorption Kinetic of Ionisable and Non Ionisable Herbicides written by Lizethly Caceres Jensen and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volcanic ash-derived soils (VADS, variable-charge soils) are predominant in some regions of the world, being of great importance in the agricultural economy of several emerging countries. Their amphoteric surface charge characteristics confer physical/chemical properties different to constant surface charge-soils, showing a particular behavior in relation to the herbicide adsorption kinetics. Volcanic soils represent an environmental substrate that may become polluted over time due to intensive agronomic uses. Solute transport models have contributed to a better understanding of herbicide behavior on variable- and constant-charge soils, being also necessary to evaluate the fate of herbicides and to prevent potential contamination of water resources. The following chapter is divided into four sections: physical/chemical properties of variable and constant-charge soils, kinetic adsorption models frequently used to obtain kinetic parameters of herbicides on soils, solute transport models to describe herbicide adsorption on VADS, and impact of experimental conditions of kinetic batch studies on solute transport mechanisms.
Book Synopsis Kinetic Modeling for Environmental Systems by : Rehab Abdel Rahman
Download or read book Kinetic Modeling for Environmental Systems written by Rehab Abdel Rahman and published by BoD – Books on Demand. This book was released on 2019-04-10 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continuous increase in human activities affects the environment in notable ways; these effects need to be monitored and controlled when appropriate to ensure the sustainability of our lives. Environmental pollution is one of the major problems associated with human activities as a result of routine and accidental releases. Currently, pollution prevention, control, and affected environment remediation receive great attention globally. This attention has led to a continuous increase in research efforts that aim to understand, simulate, and predict important processes that affect pollutant generation and migration. Optimization of chemical and physical reactions within different waste treatment technologies and remediation projects are the focus of many research projects worldwide. This book presents some kinetic models that could be used to support pollution prevention, control, and environmental assessments of human activities.
Book Synopsis Interactions Between Organic Compounds, Minerals and Ions in Volcanic Ash Derived Soils by : Herbert Appelt-Rossi
Download or read book Interactions Between Organic Compounds, Minerals and Ions in Volcanic Ash Derived Soils written by Herbert Appelt-Rossi and published by . This book was released on 1974 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Dehydration on Physico-chemical Properties of Selected Volcanic Ash Soils from Hawaii by : Soo Kil Lim
Download or read book Effects of Dehydration on Physico-chemical Properties of Selected Volcanic Ash Soils from Hawaii written by Soo Kil Lim and published by . This book was released on 1976 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Fate of Two Herbicides in Soils by : Amrith S. Gunasekara
Download or read book Environmental Fate of Two Herbicides in Soils written by Amrith S. Gunasekara and published by . This book was released on 2007 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Properties of Volcanic Ash Soils by : Leslie Denis Swindale
Download or read book The Properties of Volcanic Ash Soils written by Leslie Denis Swindale and published by . This book was released on 1969 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Solution and Soil Composition on Sorption of Ionizable and Nonionic Compounds by : Wendy Ona Werkheiser
Download or read book Effect of Solution and Soil Composition on Sorption of Ionizable and Nonionic Compounds written by Wendy Ona Werkheiser and published by . This book was released on 1996 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impact of Soil Organic Matter Heterogeneity and Soil Aggregation on the Sorption of Herbicides by Soils by :
Download or read book Impact of Soil Organic Matter Heterogeneity and Soil Aggregation on the Sorption of Herbicides by Soils written by and published by . This book was released on 2007 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed in pursuit of understanding of interactions between herbicides and soils, focusing on the effects of heterogeneity within soil organic matter (SOM), and the aggregation of SOM with mineral matter in soils, on equilibrium sorption and sorption rates of herbicides. For this purpose, sorption of three herbicides -- atrazine, metolachlor and napropamide -- was studied on a bulk soil, a bulk peat and three fractions that were chemically isolated from it. Studies were also performed using the well studied polynuclear aromatic hydrocarbon (PAH) phenanthrene to provide a comparison for the herbicides. The sorbents extracted from the soil and peat -- Base extracted fraction (BE), humic acids fraction (HA) and kerogen and black carbon fraction (KB) were characterized with elemental analysis, scanning electron microscopy and surface area measurements and subjected to sorption and desorption equilibrium studies and sorption rate investigations. The herbicides were found to exhibit non linear sorption isotherms on all the sorbents, with HA from both soil and peat showing the least non linear isotherms and fastest sorption rates among all the sorbents. HA fraction also showed the least dependence of equilibrium or time dependent organic carbon normalized sorption capacity (KOC or KOC(t)) on initial aqueous solute concentration. This result was in accordance with the amorphous nature of the HA material and similar to that observed for PAHs. Herbicide atrazine was found to react with HA and was transformed to hydroxyatrazine in its presence. KOC or KOC(t) values for all other sorbents were found to be dependent on initial aqueous solute concentration. High sorption capacity of KB dominated the sorption for all the herbicides, with this capacity being diminished by the aggregation structure of the soil. Significant sorption hysteresis was not observed for the sorption of herbicides on the KB fraction, unlike that observed for phenanthrene, indicating large herbicide molecules do not penetrate nanopores of KB. Hysteresis observed for the bulk soil and BE for atrazine was attributed to chemical interactions between the sorbents and the herbicide. Overall this dissertation found that the herbicides exhibit hydrophobic interactions with soils, similar to PAHs, but owing to their large molecular sizes and polarities may exhibit site specific interactions and lack of hysteresis with soil components that call for changes in existing fate and transport models and further microscopic understanding.
Book Synopsis Distribution of Electric Charges in Chilean Soils Derived from Volcanic Ash by : Maria Adriana Carrasco Rimassa
Download or read book Distribution of Electric Charges in Chilean Soils Derived from Volcanic Ash written by Maria Adriana Carrasco Rimassa and published by . This book was released on 1972 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Impacts of Soil Component Interactions by : P. M. Huang
Download or read book Environmental Impacts of Soil Component Interactions written by P. M. Huang and published by CRC Press. This book was released on 1995-03-29 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: V. 1 - Natural and anthropogenic organics; v. 2 - Metals, other inorganics, and microbial activities. General soil quality as influenced by interactions of soil minerals with organics and microorganisms: Organic-inorganic interections in soils and their effects on soil quality; Sorption phenomena between inorganic and organic compounds in soils: impacts on transformation processes; Role of aluminium and iron in the accumulation of organic matter in soils with variable charge; Sorption of ions by soil organic matter and clay-organics at low ionic strength; Water potential, soil microhabitats, and microbial development; Effect of citric acid on interlayer adsorption of hydroxy-aluminosilicate ions by montmorillonite; Microbial oxidation of pyrites in relation to its efficiency in alkali soil reclamation; Modification of gelation properties of colloidal solids from oil sands: extraction impact on fine tailings formation; Position paper of part I; Transformations of natural and anthropogenic organic compounds as affected by soil minerals and microorganisms: Natural organics; Recent advances in organomineral interactions: implications for carbon cycling and soil structure; The role of short-range ordered mineral colloids in abiotic transformations of organics components in the environment; Influence of pyrogallol on the catalytic action of iron and managenese oxides in amino acid transformation; Photochemical effect on the abiotic transformations of polyphenolics as catalyzed by Mn(IV) oxide; Potential of the supercitical fluid extraction technique for characterizing organic-inorganic interactions in soils; Dissolution and fractionation of calcium-bound and iron-and aluminium-bound humus in soils; Rhe quality of soil organic matter as characterized by soil CPMAS C-NMR, and Py-FIMS; Extracellular polysaccharides: an interface between microorganisms and soil constituents; Low-molecular-weigh aliphatic carboxylic acids in some andisols of Japan; Relationship between organic acids and microorganisms on a kong-term cropping site in southeastern Australia; Effect of the addition of plant residues on the mineralization of sulfur in Costa Rican soils; Anthropogenic organics: Sorption and biodegradation of organic contaminants in soils: conceptual representations of process coupling; The role of dissolved metals and metal-containing surfaces in catalyzing the hydrolysis of organic pollutants; The role of abiotic and biotic catalysts in the transformation of phenolic compounds; The role of abiotic interections with humic substances on the environmental impact of organic pollutants; Adsorption mechanisms and abiotic catalytic transformations of some agrochemicals by clay minerals; Interactions between manganese oxides and multiple ringed aromatic compounds; Mobility and persistence of metolachlor and terbuthylazine in field lysimeters; Soil-pesticide interactions and their impact on the volatilization process; Factors affecting the movements, reactions, and biotransformations ox xenobiotics; Effect of soil minerals on the microbial formation of enzymes and their possible use in remediation of chemically polluted sites; Position paper of part II; Effect of microorganisms on mobility of heavy metals in soils; Interactions of copper with soil humic substances; Adsorption of phosphate on variable charge minerals: competitive effect of organic ligands; Cadmium adsorption on the hydroxyaluminum-montmorillonite complex as influencend by oxalate; Influence of citrate on selenite sorption-desorption on short-range ordered aluminum hydroxides; Role of amorphous fe oxides in controlling retention of heavy metal elements in soils; Effect of natural organic matter and pH on the bioavailability of metal ions in soils; Seasonal changes of organic matter, pH, nitrogen and some metals in forest topsoils in Austria: a case study of two soils with and whithout a litter layer; Substituion of rock phosphate and legumes for commercial fertilizers; Effect of single and combined inoculation with azotobacter and VA mycorrhizal fungi on growth and mineral nutrient contents of maize and wheat plants; Position paper of part I; Interactions of clays with microorganisms and bacterial survival in soil: a physicochemical perspective; Enumeration, survival, and beneficial activities of microorganisms introduced into soil; Effects of clay minerals, oxyhydroxides, and humic matter on microbial communities of soil, sediment, and water; Activity, stability, and kinetc properties of enzymes immobilized on clay minerals and organomineral complexes; Influence of site conditions and heavy metals on enzyme activities of forest topsoils; Aluminum toxicity: a major stress for microbes in the environment; Biological response to contamination with pentachlorophenol and mercuric chloride in a high organic matter soil; Ecology of 2,4-D degradation in three palouse silt loam soils.
Book Synopsis Some Factors Affecting the Mineralization of Organic Matter in Volcanic Ash Soils by : Fernando Munevar
Download or read book Some Factors Affecting the Mineralization of Organic Matter in Volcanic Ash Soils written by Fernando Munevar and published by . This book was released on 1974 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sorption and Release of Pesticides in Soils by : Riaz Ahmad
Download or read book Sorption and Release of Pesticides in Soils written by Riaz Ahmad and published by . This book was released on 1999 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aims of this study were: 1. to examine the sorption behaviour of selected nonionic and ionic pesticides in a range of soils; 2. to characterise the nature of soil organic matter in a diverse group of soils and relate the structural and molecular variations of organic matter to sorption of nonionic pesticides; and 3. to study the release behaviour of carbaryl and ethion from two historically contaminated soils and to elucidate the mechanisms of their aging/sequestration. (abstract)
Book Synopsis Re-partitioning of Some Trace Elements in Andesitic Volcanic Ash Derived Soils by : F. R. Gahrooee
Download or read book Re-partitioning of Some Trace Elements in Andesitic Volcanic Ash Derived Soils written by F. R. Gahrooee and published by . This book was released on 1994 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-first Order Degradation and Time-dependent Sorption of Organic Chemicals in Soil by : Wenlin Chen
Download or read book Non-first Order Degradation and Time-dependent Sorption of Organic Chemicals in Soil written by Wenlin Chen and published by . This book was released on 2014 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Biochar for Environmental Safety by : Ahmed Abdelhafez
Download or read book Applications of Biochar for Environmental Safety written by Ahmed Abdelhafez and published by BoD – Books on Demand. This book was released on 2020-07-22 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochar is a carbon-rich material produced from the pyrolysis of organic materials from agricultural and forestry biomass at a relatively low temperature in the absence of oxygen. As such, it has potential for solving many agricultural and environmental problems.This book is divided into five sections: “Introduction,” “Production and Legislation of Biochar,” “Applications of Biochar for Soil Fertility Improvement,” “Role of Biochar for Soil Remediation and Ameliorating Salinity Effects” and “Applications of Biochar for Water Treatment.” Chapters address topics such as the pros and cons of biochar, its production, and its role in remediating and treating contaminated soils and water.
