Download or read book The Effects of Climate Soil and Vegetation on the Design of Water Balance Covers for Solid Waste Landfills in Texas written by Salman A. Baig and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study is to determine the effects of climate, soil, and vegetation on the design of water balance (WB) covers for solid waste landfills in Texas. This study was conducted using water balance software (UNSAT-H model) that considers unsaturated soil hydraulics and plant water uptake. To date, limited research has been conducted for WB covers in Texas. Texas is located in the central region of the United States and encounters approximately nine distinct 5 inch precipitation increments or ranges, unlike any other state in the United States. Texas includes various climate regions and is a favorable choice among other states to determine the effects of climate on the design of WB covers. Approximately 190 solid waste landfills in Texas accepted waste in Fiscal Year 2010 based on information from the Texas Commission on Environmental Quality (TCEQ). This study of the landfills in Texas. The regions were selected based on different climatic conditions: arid, semi-arid, sub-humid, or humid climate. The soils analyzed in this study include clay, silt, clayey sand, and sand, which are usually found during landfill excavation and can potentially be used for WB covers. The clay, silt, and clayey sand soils contain fine-grained particles that provide water storage capacity for WB covers; WB covers rely on: 1) water storage during periods of increased precipitation, and 2) evaporation from surface soils and transpiration through vegetation from deeper soils during drier periods. The design of capillary barriers (sandy soil placed under fine-grained soils to provide capillary break and maximize storage in overlying fine-grained soil) is also analyzed in this study. The vegetation properties analyzed in this study include non-vegetated conditions and vegetated conditions with root depths up to 36 inches. The maximum allowable percolation rate is 4 mm/year in Texas (TCEQ) at the base of the WB cover for determining equivalency to the conventional cover and preventing additional leachate generation, as discussed in this study. An iterative process was used to determine the required design thickness that met the 4 mm/year percolation design standard for all conditions analyzed. The required design thickness is determined from three factors: climate, soil type, and vegetation. The results of this study indicate that more humid climates with greater precipitation require a larger design thickness. Also, the hydraulic conductivity of soil is the most important factor in WB cover design; the CL soil cover required the least design thickness because of its lowest hydraulic conductivity. Vegetated conditions provide for a decrease in required thickness compared to non-vegetated conditions, and the required thickness decreases as deeper roots are modeled.

Download or read book Evapotranspiration Covers for Landfills and Waste Sites written by Victor L. Hauser and published by CRC Press. This book was released on 2016-04-19 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: New, natural, self-renewing, and low-cost, evapotranspiration (ET) covers for landfills provide a solution to landfill waste that is clean, green, and economical. Evapotranspiration Covers for Landfills and Waste Sites examines the concept theory and the practical proof, then explains the technology, design, and application. It delineates the essen

Download or read book Environmental Protection Research Catalog Indexes written by Smithsonian Science Information Exchange and published by . This book was released on 1972 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the Performance of Engineered Waste Containment Barriers written by National Research Council and published by National Academies Press. This book was released on 2007-09-22 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: President Carter's 1980 declaration of a state of emergency at Love Canal, New York, recognized that residents' health had been affected by nearby chemical waste sites. The Resource Conservation and Recovery Act, enacted in 1976, ushered in a new era of waste management disposal designed to protect the public from harm. It required that modern waste containment systems use "engineered" barriers designed to isolate hazardous and toxic wastes and prevent them from seeping into the environment. These containment systems are now employed at thousands of waste sites around the United States, and their effectiveness must be continually monitored. Assessment of the Performance of Engineered Waste Containment Barriers assesses the performance of waste containment barriers to date. Existing data suggest that waste containment systems with liners and covers, when constructed and maintained in accordance with current regulations, are performing well thus far. However, they have not been in existence long enough to assess long-term (postclosure) performance, which may extend for hundreds of years. The book makes recommendations on how to improve future assessments and increase confidence in predictions of barrier system performance which will be of interest to policy makers, environmental interest groups, industrial waste producers, and industrial waste management industry.

Download or read book Field Hydrologic Evaluation of Final Covers for Waste Containment written by Preecha Apiwantragoon and published by . This book was released on 2007 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Vegetation on the Water Balance of an Edwards Plateau Watershed written by Eric James Redeker and published by . This book was released on 1998 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Perennial and Annual Vegetation on a Soil Water Balance and Groundwater Recharge written by Jared Jeffrey Trost and published by . This book was released on 2010 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Protecting the Environment in Texas written by J. Graham Hill and published by [Austin] : Lyndon B. Johnson School of Public Affairs, University of Texas at Austin. This book was released on 1973 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Construction of RCRA CERCLA Final Covers written by United States. Environmental Protection Agency and published by . This book was released on 1991 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Protection Research Catalog written by and published by . This book was released on 1972 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EPA 540 R written by and published by . This book was released on 1992 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sparse Plant Community Effects on Soil Water Balance of an Arid Site written by Clive Frank Reece and published by . This book was released on 1991 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient Regeneration from Terrestial Vegetation at the Palmetto Bend Reservoir Site Near Edna Texas written by University of Texas at Austin. Center for Research in Water Resources and published by . This book was released on 1974 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Awards Index written by and published by . This book was released on with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Texas State Soil and Water Conservation Board written by Texas. Sunset Advisory Commission and published by . This book was released on 2010 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Decision Maker s Guide to Solid Waste Management written by Philip R. O'Leary and published by DIANE Publishing. This book was released on 1999-02 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Guide has been developed particularly for solid waste management practitioners, such as local government officials, facility owners and operators, consultants, and regulatory agency specialists. Contains technical and economic information to help these practitioners meet the daily challenges of planning, managing, and operating municipal solid waste (MSW) programs and facilities. The Guide's primary goals are to encourage reduction of waste at the source and to foster implementation of integrated solid waste management systems that are cost-effective and protect human health and the environment. Illustrated.

Download or read book Draft Environmental Impact Statement on the Proposed Guidelines for the Landfill Disposal of Solid Waste written by and published by . This book was released on 1979 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: