This report was prepared by the Nye County Nuclear Waste Repository Project Office, pursuant to a... more This report was prepared by the Nye County Nuclear Waste Repository Project Office, pursuant to a Cooperative Agreement funded by the U.S. Department of Energy, and neither Nye County nor any of its contractors or subcontractors nor the U.S. Department of Energy, nor any person acting on behalf of either, assumes any liabilities with respect to the use of, or for damages resulting from the use of, any information, apparatus, method, or process disclosed in this report. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the U.S. Department of Energy or Nye County. The views and opinions of authors expressed herein do not necessarily state or reflect those of the U.S. Department of Energy.
Medical waste is an essential part of the municipal waste management, and is categorized as hazar... more Medical waste is an essential part of the municipal waste management, and is categorized as hazardous waste. Unfortunately, in practice in Jordan this waste is taken as general waste and thus treated as any other waste and this create many dangers to the persons whose deal these wastes and to the environment as the same time. This study comes to understand and to issue solutions for the previous big problem through collect actual data and facts regarding wastes (specially medical wastes) generated at the Healthcare Establishments (HCE) located in Amman City (in Jordan) Also, to approve the effectiveness of the incineration treatment method for the solid waste (especially medical waste) based on experimental analysis for the emission gases and the reminder ashes from an incinerator located at University of Jordan hospital. And then make a comparison between the results that obtained and the reported results in the literatures. Field investigations of hospitals, medical laboratories, ...
Biochar is a by-product of biomass pyrolysis. Although biochar has been applied as a soil amendme... more Biochar is a by-product of biomass pyrolysis. Although biochar has been applied as a soil amendment for a long time, there are many other applications that need to be explored. The objective of this research was to review and evaluate exist published studies that assess the application of biochar as a medium for soil and environmental remediation and pollution mitigation. Utilization of biochar in nanotechnology applications is also explored. During the last three decades, many studies have been conducted mainly on small-scale models that are currently limited to specific biochar type and site locations. The results of this research: (1) summarizes the main keystones of biochar applications; (2) define the research gaps and the major research needs to design and evaluate innovative materials and environmental systems that utilize biochar.
Spatial and temporal variations of nitrate concentrations in groundwater at Goodwater Creek Exper... more Spatial and temporal variations of nitrate concentrations in groundwater at Goodwater Creek Experimental Watershed were examined to understand the controls of nitrate transport in groundwater. The 75-km2 watershed is dominated by a continuous, restrictive clay layer 20-50 cm beneath the top soil. The mean nitrate-N concentration of the 94 wells located throughout the watershed was 12 mg L-1 from 1991 to 2004, which is comparable to the mean value in shallow groundwater at agricultural watersheds with well-drained soils throughout the US. The temporal variation of nitrate-N concentrations from 1991 to 2004 was dominated by three patterns among 94 wells: no obvious trend, an increasing trend and a decreasing trend. The variation of nitrate-N concentrations with well depth was dominated by a bulge-shape: increasing with depth above 10 m but decreasing below it. This threshold depth is consistent with a continuous glacial till layer located at the same depth, which has much higher hydra...
Responses of stream flow hydrograph to intense rainfall events in small basins were previously in... more Responses of stream flow hydrograph to intense rainfall events in small basins were previously investigated using a dimensionless theoretical model based on Darcy’s law, which is expressed by a ratio of runoff to peak runoff as a function of time and a time-constant that represents the Darcian response to sharp rainfall-driven pulses on the head of the shallow groundwater system. In this study, the model was applied to a 72 km2 claypan watershed, Goodwater Creek Experimental Watershed (GCEW) in central Missouri, to understand how the claypan soil affects the response of stream hydrograph to rainfall events. Results from a number of storms ranging from 11 to 129 mm d-1 showed that the time-constant is about 1.3 days. Comparing to the previous studies, this value is comparable to that in the Ozark aquifer in southwest Missouri (1.5 days), but significantly greater than that in Meramec River, karst spring, and Big River, with 0.5, 0.4, and 0.14 days, respectively, where soils are drama...
ABSTRACT Old Settlers Creek in the City of McKinney was pre-selected by the City of McKinney - De... more ABSTRACT Old Settlers Creek in the City of McKinney was pre-selected by the City of McKinney - Development Services/Engineering (DSE) and Texas AgriLife Research for a stream restoration project as thecreek had faced head cutting and some bank erosion due in part to the increased development in the creek watershed and additional stormwater runoff from adjacent streets. In addition, the site is very visible with high potential for successful restoration. The evaluation process for this stream was undertaken by DSE and Texas AgriLife based on Watershed Assessment for River Stability and Sediment Supply (WARSSS) procedures (Rosgen, 2006), and this included a reconnaissance level assessment, a sediment and stability consequence assessment, and a prediction level assessment. A restoration plan has been developed based WARSSS, Old Settlers Creek profile and cross sectional survey, and a Reference Reach’s (Timber Creek) morphological parameters. Design procedures involved designing a stable cross section and profile including bankfull, pool to pool and riffle to riffle spacings,slope, and other geomorphological features. Other tasks performed in this study are: • Selection of appropriate stabilization structures (cross vanes) • Developing a planting plan • Developing a construction sequence and erosion control plan • Calculation of shear stress and flood studies for design check. The report includes, 1) Old Settlers Creek field survey (existing conditions; cross section survey; and profile survey), and its hydrology calculations (drainage area; rain intensity; flow rate; and flow velocity); 2) Timber Creek (the reference reach) field survey (profile survey; cross section survey; pattern survey; and pebble count), in addition to its hydrology calculations; and 3) the designing procedures listed above.
This report was prepared by the Nye County Nuclear Waste Repository Project Office, pursuant to a... more This report was prepared by the Nye County Nuclear Waste Repository Project Office, pursuant to a Cooperative Agreement funded by the U.S. Department of Energy, and neither Nye County nor any of its contractors or subcontractors nor the U.S. Department of Energy, nor any person acting on behalf of either, assumes any liabilities with respect to the use of, or for damages resulting from the use of, any information, apparatus, method, or process disclosed in this report. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the U.S. Department of Energy or Nye County. The views and opinions of authors expressed herein do not necessarily state or reflect those of the U.S. Department of Energy.
Medical waste is an essential part of the municipal waste management, and is categorized as hazar... more Medical waste is an essential part of the municipal waste management, and is categorized as hazardous waste. Unfortunately, in practice in Jordan this waste is taken as general waste and thus treated as any other waste and this create many dangers to the persons whose deal these wastes and to the environment as the same time. This study comes to understand and to issue solutions for the previous big problem through collect actual data and facts regarding wastes (specially medical wastes) generated at the Healthcare Establishments (HCE) located in Amman City (in Jordan) Also, to approve the effectiveness of the incineration treatment method for the solid waste (especially medical waste) based on experimental analysis for the emission gases and the reminder ashes from an incinerator located at University of Jordan hospital. And then make a comparison between the results that obtained and the reported results in the literatures. Field investigations of hospitals, medical laboratories, ...
Biochar is a by-product of biomass pyrolysis. Although biochar has been applied as a soil amendme... more Biochar is a by-product of biomass pyrolysis. Although biochar has been applied as a soil amendment for a long time, there are many other applications that need to be explored. The objective of this research was to review and evaluate exist published studies that assess the application of biochar as a medium for soil and environmental remediation and pollution mitigation. Utilization of biochar in nanotechnology applications is also explored. During the last three decades, many studies have been conducted mainly on small-scale models that are currently limited to specific biochar type and site locations. The results of this research: (1) summarizes the main keystones of biochar applications; (2) define the research gaps and the major research needs to design and evaluate innovative materials and environmental systems that utilize biochar.
Spatial and temporal variations of nitrate concentrations in groundwater at Goodwater Creek Exper... more Spatial and temporal variations of nitrate concentrations in groundwater at Goodwater Creek Experimental Watershed were examined to understand the controls of nitrate transport in groundwater. The 75-km2 watershed is dominated by a continuous, restrictive clay layer 20-50 cm beneath the top soil. The mean nitrate-N concentration of the 94 wells located throughout the watershed was 12 mg L-1 from 1991 to 2004, which is comparable to the mean value in shallow groundwater at agricultural watersheds with well-drained soils throughout the US. The temporal variation of nitrate-N concentrations from 1991 to 2004 was dominated by three patterns among 94 wells: no obvious trend, an increasing trend and a decreasing trend. The variation of nitrate-N concentrations with well depth was dominated by a bulge-shape: increasing with depth above 10 m but decreasing below it. This threshold depth is consistent with a continuous glacial till layer located at the same depth, which has much higher hydra...
Responses of stream flow hydrograph to intense rainfall events in small basins were previously in... more Responses of stream flow hydrograph to intense rainfall events in small basins were previously investigated using a dimensionless theoretical model based on Darcy’s law, which is expressed by a ratio of runoff to peak runoff as a function of time and a time-constant that represents the Darcian response to sharp rainfall-driven pulses on the head of the shallow groundwater system. In this study, the model was applied to a 72 km2 claypan watershed, Goodwater Creek Experimental Watershed (GCEW) in central Missouri, to understand how the claypan soil affects the response of stream hydrograph to rainfall events. Results from a number of storms ranging from 11 to 129 mm d-1 showed that the time-constant is about 1.3 days. Comparing to the previous studies, this value is comparable to that in the Ozark aquifer in southwest Missouri (1.5 days), but significantly greater than that in Meramec River, karst spring, and Big River, with 0.5, 0.4, and 0.14 days, respectively, where soils are drama...
ABSTRACT Old Settlers Creek in the City of McKinney was pre-selected by the City of McKinney - De... more ABSTRACT Old Settlers Creek in the City of McKinney was pre-selected by the City of McKinney - Development Services/Engineering (DSE) and Texas AgriLife Research for a stream restoration project as thecreek had faced head cutting and some bank erosion due in part to the increased development in the creek watershed and additional stormwater runoff from adjacent streets. In addition, the site is very visible with high potential for successful restoration. The evaluation process for this stream was undertaken by DSE and Texas AgriLife based on Watershed Assessment for River Stability and Sediment Supply (WARSSS) procedures (Rosgen, 2006), and this included a reconnaissance level assessment, a sediment and stability consequence assessment, and a prediction level assessment. A restoration plan has been developed based WARSSS, Old Settlers Creek profile and cross sectional survey, and a Reference Reach’s (Timber Creek) morphological parameters. Design procedures involved designing a stable cross section and profile including bankfull, pool to pool and riffle to riffle spacings,slope, and other geomorphological features. Other tasks performed in this study are: • Selection of appropriate stabilization structures (cross vanes) • Developing a planting plan • Developing a construction sequence and erosion control plan • Calculation of shear stress and flood studies for design check. The report includes, 1) Old Settlers Creek field survey (existing conditions; cross section survey; and profile survey), and its hydrology calculations (drainage area; rain intensity; flow rate; and flow velocity); 2) Timber Creek (the reference reach) field survey (profile survey; cross section survey; pattern survey; and pebble count), in addition to its hydrology calculations; and 3) the designing procedures listed above.
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