Now showing items 441-460 of 519

    • Engineering Solution for Predicting Contaminant Removal by Pneumatic Fracturing 

      Yuan Ding; John R. Schuring; Paul C. Chan (American Society of Civil Engineers, 1999)
      Pneumatic fracturing is a new enhancement process that has been accepted and recognized as a cost-effective technology in removing contaminant. This paper presents an analytical simulation and its engineering solution for ...
    • Hazardous, Toxic, and Radioactive Waste Committee 

      Dr. Rao Y. Surampalli (American Society of Civil Engineers, 1999)
    • Reducing Costs of UST Site Management Using RBCA Strategy 

      Kimberly Davis, P.E.; Chris Bolton (American Society of Civil Engineers, 1999)
      In 1995, the Tennessee Department of Environment and Conservation (TDEC) implemented a new ranking system for sites to assign a level of risk and associated cleanup recommendations. This ranking system, which scores sites ...
    • Extraction Method for Analysis of PAHs in Coal-Tar-Contaminated Soils 

      Pak-Hing Lee; Say Kee Ong; Johanshir Golchin; G. L. (Sam) Nelson (American Society of Civil Engineers, 1999)
      A direct solvent-extraction method was evaluated to assess its application for the extraction and analysis of PAHs (polycyclic aromatic hydrocarbons) in coal-tar-contaminated soils. Eight individual solvents and two combined ...
    • Manufactured Gas in California, 1852–1940: Basis for Remedial Action 

      Allen W. Hatheway (American Society of Civil Engineers, 1999)
      California was a relatively late entry (1852) in the manufactured gas industry. However, its gas entrepreneurs showed considerable invention and enterprise in establishing more than 250 separate gas plants, this in a total ...
    • Sealed-Container Sampling Tools 

      Roger G. Johnston; Anthony R. E. Garcia; Ron K. Martinez; Eric T. Baca (American Society of Civil Engineers, 1999)
      The writers have developed three inexpensive sealed-container sampling tools. Each of these novel tools allows the user to rapidly drill into a closed container, extract a sample of its contents (gas, liquid, or free-flowing ...
    • Brass Factory to Regional Mall: A Model Brownfield 

      William F. Kay Jr; Elizabeth C. Barton (American Society of Civil Engineers, 1999)
      This paper details a portion of the story of how a 173-year-old former urban brass mill site was transformed into a thriving new regional shopping mall and answers the following questions. Why was this site selected? What ...
    • Stabilization/Solidification of Petroleum-Contaminated Soils with Asphalt Emulsions 

      Jay N. Meegoda (American Society of Civil Engineers, 1999)
      This paper describes a research study that was conducted to evaluate the design parameters for asphalt pavements and the mechanical properties of cold mix asphalt concrete (CMA) with petroleum-contaminated soils (PCSs). ...
    • Remedy Selection for Cleanup of Uncontrolled Waste Sites 

      Paul D. Bennett; Brad Brumbach; Tyrone W. Farmer; Preston L. Funkhouser IV; Allen W. Hatheway (American Society of Civil Engineers, 1999)
      Selection of remedy for uncontrolled hazardous waste sites involves comparisons of various technological approaches for minimization of threats and achievement of cleanup action levels. Approaches specified in the Comprehensive ...
    • Potential Technologies for Remediation of Brownfields 

      Krishna R. Reddy; Jeffrey A. Adams; Christina Richardson (American Society of Civil Engineers, 1999)
      It is estimated that over 500,000 brownfield sites exist throughout the United States. Many of these sites offer attractive financial opportunities, but a major obstacle to their redevelopment is fear of contamination and ...
    • Volatile Contaminant Extraction Enhanced by Pneumatic Fracturing 

      Yuan Ding; John R. Schuring; Paul C. Chan (American Society of Civil Engineers, 1999)
      Contamination of the subsurface by volatile organic compounds (VOCs) must be remediated to protect public health. Soil vapor extraction has been proven to be an effective technology for removing VOCs from the vadose zone ...
    • Development of Risk-Based Remediation Strategies 

      Stephen T. Washburn; Kristen G. Edelmann (American Society of Civil Engineers, 1999)
      Risk assessment can be applied throughout the site evaluation process to help identify remedies that are both environmentally sound and cost-effective. For example, risk assessment is often used for calculating cleanup ...
    • Control of Hydrogen Sulfide Emissions Associated with Wastewater Treatment Plants 

      Lisa C. Hayes (American Society of Civil Engineers, 1999)
      The odor associated with hydrogen sulfide is problematic for many wastewater treatment plants. In addition to causing a nuisance because of its odor, hydrogen sulfide can cause serious health effects. Many wastewater ...
    • Brownfield Redevelopment of Koppers Seaboard Site in Kearny, New Jersey 

      Michael L. Hornsby; Peter W. Sawchuck (American Society of Civil Engineers, 1999)
      This paper describes the ongoing remediation and brownfield redevelopment project at the former Koppers Seaboard Site in Kearny, New Jersey. The remediation/redevelopment of the 687,990 square meter site, utilizing processed ...
    • Kinetics for Biodegradation of Polycyclic Aromatic Hydrocarbons 

      Jerome F. Joyce; Chikashi Sato; Rao Y. Surampalli; Raul Cardenas (American Society of Civil Engineers, 1999)
      A laboratory-scale batch type in-vessel composter was charged with simulated municipal solid waste deliberately contaminated with a mixture of three- and four-ringed polycyclic aromatic hydrocarbons (PAHs). There were two ...
    • Field Investigation of Landfill Leachate Collection System Clogging 

      William Craven; Timothy G. Townsend; Ken Vogel; Steve Laux (American Society of Civil Engineers, 1999)
      Leachate collection systems (LCSs) are designed to efficiently remove leachate from solid waste landfills. This prevents ponding of the leachate on the liner system, thus minimizing leachate migration to the environment. ...
    • Moisture Accumulation under Asphalt Cover at Radioactive Waste-Burial Site 

      Cheryl K. Rofer; Bennie A. Martinez; Melissa B. Klein; Gregory K. Bayhurst; Ines R. Triay (American Society of Civil Engineers, 1999)
      Moisture can accumulate under asphalt covers for waste-burial areas, potentially mobilizing components of the waste. This case study describes an asphalt cover emplaced in 1961 to contain plutonium, uranium, beryllium, and ...
    • Influence of Specimen Size on Leachability Test Results of Waste ST/SO 

      J. Samsonek; M. Vondruska; O. Stranel (American Society of Civil Engineers, 1998)
      This paper focuses on the problem of leachability tests for waste stabilizates/solidificates (ST/SO), with an attempt to describe the influence of the size of test specimens of ST/SO on determined leachability. It was ...
    • Stabilization of Incinerator Ash with High Chromium(VI) Content 

      M. Vondruska; T. Sebök; J. Kotasek; J. Samsonek (American Society of Civil Engineers, 1998)
      A laboratory procedure was developed and verified for neutralizing highly toxic ash from incinerators that contain extreme quantities of soluble hexavalent chromium by means of stabilization/solidification with an asphalt ...
    • Editorials 

      Unknown author (American Society of Civil Engineers, 1998)