Download or read book Fate of Atrazine and Metolachlor in a Phytoremediation System written by Keri Lynn Deppe Henderson and published by . This book was released on 2004 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atrazine and metolachlor have been implicated in point-source pollution at agrochemical dealerships in the Midwest, as well as in nonpoint-source contamination of surface waters caused by runoff. Prairie grasses have been used in filter strips and are also useful for phytoremediation; however, little is known about the fate of contaminants and their metabolites within a grassed system. Effects of plant uptake on formation and fate of degradation products are not known. In this thesis, atrazine and metolachlor were evaluated individually. Each 14C-labeled herbicide was added to enclosed systems to determine the fate of the parent compound and its metabolites in soil, plant, and air. Soil was treated with 25 mg/kg 14C-labeled herbicide and allowed to age for a short period to simulate conditions that could be found at an agrochemical dealership site. Four systems were then amended with a mixture of prairie grasses, and the remaining four chambers were unvegetated controls. Dissipation of each herbicide and distribution of parent compound and metabolites were recorded for 21 days for 14C-atrazine and 90 days for 14C-metolachlor. 14C-CO2 and volatile 14C-organic metabolites were collected throughout the study. After the testing period, soil and plant materials were evaluated for radioactivity, and identity of metabolites was determined. Mass balance of atrazine for both vegetated and control systems was>76%, with 40% of the applied radioactivity remaining bound to soil particles after a sequential extraction technique. Parent atrazine was the dominant compound detected, with major metabolites in soil being deethylatrazine and didealkylatrazine. Less than 0.5% of applied 14C-residue was taken up by the grasses. Approximately 2% of total applied 14C-atrazine was mineralized to 14C-CO2, with no differences between vegetated and unvegetated systems. Mass balance for metolachlor was>92% for both vegetated and control systems. Vegetation decreased the amount of metolachlor in soil, with significantly higher concentrations of the metabolites metolachlor ethane sulfonic acid and the morpholinone metabolite present in vegetated soil compared to unvegetated soil. Over 7% of applied radioactivity was taken up into plant tissue during the 97-day study, thus indicating that plant uptake plays a major role in the phytoremediation of metolachlor.

Download or read book Fate of Atrazine and Metolachlor in Till and No till Soils written by Hamid Rafiee and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phytoremediation of Soil and Water Contaminants written by Ellen L. Kruger and published by . This book was released on 1997 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: OVERVIEW 1. Phytoremediation of Contaminated Water and Soil, S.D. Cunningham, J.R. Shann, David E. Crowley, and Todd A. Anderson RHIZOSPHERE ECOLOGY 2. Rhizosphere Ecology of Xenobiotic-Degrading Microorganisms, David E. Crowley, Sam Alvey, and Eric S. Gilbert PHYTOREMEDIATION OF AGROCHEMICALS 3. Aromatic Nitroreduction of Acifluorfen in Soils, Rhizospheres, and Pure Cultures of Rhizobacteria, Robert M. Zablotowicz, Martin A. Locke, and Robert E. Hoagland 4. Atrazine Degradation in Pesticide-Contaminated Soils: Phytoremediation Potential, Ellen L. Kruger, Jennifer C. Anhalt, Diana Sorenson, Brett Nelson, Ana L. Chouhy, Todd A. Anderson, and Joel R. Coats 5. Utilization of Plant Material for Remediation of Herbicide-Contaminated Soils, S.C. Wagner and Robert M. Zablotowicz 6. Potential of Biostimulation To Enhance Dissipation of Aged Herbicide Residues in Land-Farmed Waste, A.S. Felsot and E.K. Dzantor 7. An Integrated Phytoremediation Strategy for Chloroacetamide Herbicides in Soil, Robert E. Hoagland, Robert M. Zablotowicz, and Martin A. Locke 8. Ascorbate: A Biomarker of Herbicide Stress in Wetland Plants, T.F. Lytle and J.S. Lytle 9. Degradation of Persistent Herbicides in Riparian Wetlands, D.M. Stoeckel, E.C. Mudd, and James A. Entry 10. Phytoremediation of Herbicide-Contaminated Surface Water with Aquatic Plants, Pamela J. Rice, Todd A. Anderson, and Joel R. Coats 11. The Metabolism of Exogenously Provided Atrazine by the Ectomycorrhizal Fungus Hebeloma crustuliniforme and the Host Plant Pinus ponderosa, J.L. Gaskin and J. Fletcher PHYTOREMEDIATION OF INDUSTRIAL CHEMICALS 12. Evaluation of the Use of Vegetation for Reducing the Environmental Impact of Deicing Agents, Patricia J. Rice, Todd A. Anderson, and Joel R. Coats 13. Phytoremediation of Trichloroethylene with Hybrid Poplars, Milton Gordon, Nami Choe, Jim Duffy, Gorden Ekuan, Paul Heilman, Indulis Muiznieks, Lee Newman, Marty Ruszaj, B. Brook Shurtleff, Stuart Strand, and Jodi Wilmoth 14. Field Study: Grass Remediation for Clay Soil Contaminated with Polycyclic Aromatic Hydrocarbons, Xiujin Qiu, Thomas W. Leland, Sunil I. Shah, Darwin L. Sorensen, and Ernest W. Kendall 15. Benzo(a)pyrene and Hexachlorobiphenyl Contaminated Soil: Phytoremediation Potential, V. Epuri and Darwin L. Sorensen 16. Fate of Benzene in Soils Planted with Alfalfa: Uptake, Volatilization, and Degradation, A. Ferro, J. Kennedy, W. Doucette, S. Nelson, G. Jauregui, B. McFarland, and B. Bugbee 17. Metabolism of Chlorinated Phenols by Lemna gibba, Duckweed, Harry E. Ensley, Hari A. Sharma, John T. Barber, and Michael A. Polito 18. Rhizosphere Effects on the Degradation of Pyrene and Anthracene in Soil, S.C. Wetzel, M.K. Banks, and A.P. Schwab PHYTOREMEDIATION OF METALS 19. Arabidopsis thaliana as a Model System for Studying Lead Accumulation and Tolerance in Plants, J. Chen, J.W. Huang, T. Caspar, and S.D. Cunningham 20. Bioremediation of Chromium from Water and Soil by Vascular Aquatic Plants, P. Chandra, S. Sinha, and U.N. Rai 21. Phytoextraction of Lead from Contaminated Soils, J.W. Huang, J. Chen, and S.D. Cunningham 22. Phytoremediation and Reclamation of Soils Contaminated with Radionuclides, James A. Entry, Lidia S. Watrud, Robin S. Manasse, and Nan C. Vance.

Download or read book Native Plant based Phytoremediation of Atrazine in Surface Waters Using a Floating Raft System written by Ashley R. Lincoln and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Water systems in the 21st century have improved drastically compared to historical precedents due to the implementation of multi-state treatment systems. In spite of such progress, issues with contamination still remain. Persistent contaminants, such as the herbicide atrazine, plague surface water systems well outside the bounds of American farming regions and have established a constant presence in raw and treated drinking water. Despite being monitored as a regulated contaminant by the US Environmental Protection Agency, 'healthy' exposure levels are still the subject of debate among water protection and health watchdog groups. This thesis utilizes a review of water system literature to identify a potential solution for atrazine contamination using phytoremediation treatment technology deployed in floating raft systems to reduce the impact on surface water. Extensive study of precedents, hydroponics, boat design, biomimicry, and human factors considerations informed a design process for the development of a raft system prototype. A study of the prototype was conducted using 30 novice users to identify areas of improvement in terms of human factors considerations, functional attributes, and subjective characteristics. Along with gathering primary research into a possible connector unit design, this study sought to evaluate the potential for project success using a comparative analysis against a leading market competitor. This thesis concludes that the project shows promise, but requires additional testing in a large scale, longitudinal study to ensure future implementations are met with success."--Abstract

Download or read book The Persistence Degradation and Mobility of Metolachlor in Soil and the Fate of Metolachlor and Atrazine in Surface Water Surface Water sediment and Surface Water aquatic Plant Systems written by Pamela Joan Rice and published by . This book was released on 1996 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Fate and Effects of Atrazine Metolachlor Carbaryl and Chlorothalonil in Lotic Ecosystems written by Daniel Elias and published by . This book was released on 2016 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Toxicology and Chemistry written by and published by . This book was released on 2007 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Impacts of Pesticides Environmental Fate Ecotoxicology Risk Assessment and Remediation written by Liangang Mao and published by Frontiers Media SA. This book was released on 2022-11-25 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fate of Chlorpyrifos Atrazine and Metolachlor from Non point Sources in Wetland Mesocosms written by Matthew T. Moore and published by . This book was released on 1999 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fate of Atrazine in a Treated Forest Soil written by John Leslie Wright and published by . This book was released on 1998 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Master s Theses Directories written by and published by . This book was released on 2005 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".

Download or read book Fate and Transport of Volatile Organic Compounds VOCs in Phytoremediation Systems written by Xingmao Ma and published by . This book was released on 2004 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Phytoremediation is the technology of treating contaminated soil and groundwater with plants. Since its advent, phytoremediation has been applied to the treatment of various contaminants. In the phytoremediation of volatile organic compounds (VOCs), several mechanistic pathways have been suggested, but these pathways have not been fully researched and described. This research focused on the processes involved in uptake and volatilization of organic compounds by plants."--Abstract, p. iii.

Download or read book Phytoremediation Technology for the Removal of Heavy Metals and Other Contaminants from Soil and Water written by Vineet Kumar and published by Elsevier. This book was released on 2022-02-07 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phytoremediation Technology for the Removal of Heavy Metals and Other Contaminants from Soil and Water focuses on the exploitation of plants and their associated microbes as a tool to degrade/detoxify/stabilize toxic and hazardous contaminants and restore the contaminated site. The book introduces various phytoremediation technologies using an array of plants and their associated microbes for environmental cleanup and sustainable development. The book mainly focuses on the remediation of toxic and hazardous environmental contaminants, their phytoremediation mechanisms and strategies, advances and challenges in the current scenario. This book is intended to appeal to students, researchers, scientists and a wide range of professionals responsible for regulating, monitoring and designing industrial waste facilities. Engineering consultants, industrial waste managers and purchasing department managers, government regulators, and graduate students will also find this book invaluable. - Provides natural and eco-friendly solutions to deal with the problem of pollution - Details underlying mechanisms of phytoremediation of organic and inorganic contaminants with enzymatic roles - Describes numerous, successful field studies on the application of phytoremediation for eco-restoration of contaminated sites - Presents recent advances and challenges in phytoremediation research and applications for sustainable development - Provides authoritative contributions on the diverse aspects of phytoremediation by world leading experts

Download or read book Commencement written by Iowa State University and published by . This book was released on 2004 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Removal of Refractory Pollutants from Wastewater Treatment Plants written by Maulin P. Shah and published by CRC Press. This book was released on 2021-10-08 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses new and innovative trends and techniques in the removal of toxic and or refractory pollutants through various environmental biotechnological processes from wastewater, both at the laboratory and industrial scale. It focuses primarily on environmentally-friendly technologies which respect the principles of sustainable development, including the advanced trends in remediation through an approach of environmental biotechnological processes from either industrial or sewage wastewater. Features: Examines the fate and occurrence of refractory pollutants in wastewater treatment plants (WWTPs) and the potential approaches for their removal. Highlights advanced remediation procedures involving various microbiological and biochemical processes. Assesses and compares the potential application of numerous existing treatment techniques and introduces new, emerging technologies. Removal of Refractory Pollutants from Wastewater Treatment Plants is suitable for practicing engineers, researchers, water utility managers, and students who seek an excellent introduction and basic knowledge in the principles of environmental bioremediation technologies.

Download or read book Phytoremediation and Rhizoremediation written by Martina Mackova and published by Springer Science & Business Media. This book was released on 2006-09-19 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents an excellent description of the hottest topics in the field of phyto- and rhizoremediation. The book shows especially the importance of cooperation between plant and microorganisms, there is practically no phytoremediation without rhizoremediation. Newest approaches based on methods of molecular biology and genetic engineering are described, as well as plant science achievements.

Download or read book Alternative Farming Systems Biotechnology Drought Stress and Ecological Fertilisation written by Eric Lichtfouse and published by Springer Science & Business Media. This book was released on 2011-01-19 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable agriculture is a rapidly growing field aiming at producing food and energy in a sustainable way for our children. This discipline addresses current issues such as climate change, increasing food and fuel prices, starvation, obesity, water pollution, soil erosion, fertility loss, pest control and biodiversity depletion. Novel solutions are proposed based on integrated knowledge from agronomy, soil science, molecular biology, chemistry, toxicology, ecology, economy, philosophy and social sciences. As actual society issues are now intertwined, sustainable agriculture will bring solutions to build a safer world. This book series analyzes current agricultural issues, and proposes alternative solutions, consequently helping all scientists, decision-makers, professors, farmers and politicians wishing to build safe agriculture, energy and food systems for future generations.