Remediation Feasibility Studies and Pilot Testing  

 

Analyzing and Selecting Remedial Technologies

Selecting and implementing a remedial technology is one of the most important project decisions you will make. GeoInsight has substantial experience in selecting, implementing, and maintaining diverse remedial alternatives. Our engineers, geologists, and remediation technicians can evaluate a broad spectrum of potential options and select the best remediation technology for your project. Our staff members work closely with you to thoroughly understand project objectives and endpoints, considering multiple criteria, including effectiveness, timeliness, and overall cost.

GeoInsight’s experience in applying and maintaining these remedial technologies extends across a diverse range of projects and releases. Our engineers, geologists, and remedial technicians have analyzed and implemented remedial technologies for projects associated with the release of:

  • Chlorinated solvents
  • Petroleum hydrocarbons (including gasoline, diesel, kerosene, #2 fuel oil, #4 fuel oil, #6 fuel oil, used motor oil, and lubricating oil)
  • Semi-volatile organic compounds
  • Metals (including lead, arsenic, chromium, and mercury)
  • Polychlorinated biphenyls (PCBs)
  • Pesticides
  • Herbicides, and
  • Inorganic materials, such as nitrate, ammonia, and other landfill indicator parameters  

 

Where appropriate, we apply innovative approaches (such as directional drilling under buildings or installing containment walls to prevent migration) to maximize remedial effectiveness.  

 

Pilot Testing

Depending upon the project or property, pilot and bench-scale testing of one or more alternatives can help define effectiveness of a certain remedial method to address project-specific conditions.

  • Soil excavation with on-site treatment, on-site reuse, or off site disposal or recycling
  • Large-scale soil mixing using earth augers or rotary mixers
  • Soil vapor extraction using a variety of vapor treatment alternatives, including internal combustion, thermal oxidation, catalytic oxidation, and granular activated carbon
  • Air sparging using compressed air or ozone injection
  • Ground water recovery using a variety of treatment alternatives, including air stripping, granular activated carbon, ultraviolet oxidation, and ion exchange
  • High vacuum/dual phase/multi phase extraction
  • Non-Aqueous Phase Liquid (NAPL) extraction using active or passive technologies 
  • In-situ chemical oxidation using a variety of oxidant technologies, including sodium or potassium permanganate, modified Fenton’s Reagent, and sodium persulfate
  • Augmented in-situ bioremediation using a variety of nutrient and/or microbial additions under aerobic or anaerobic conditions
  • In-situ thermal remediation (thermal treatment or desorption)
  • Containment cells and stabilization walls using reactive or non-reactive materials
  • In-situ soil stabilization
  • Vapor barriers using polyethylene membranes or epoxy coatings
  • Sub-slab depressurization systems underneath building using active or passive systems, and
  • Surface scarification or washing to remove chemicals embedded in building construction materials.

For more information about remediation strategies, please visit our Remediation Services section.

  • Bench-scale tests for in-situ chemical oxidation
  • Bench-scale tests for in-situ anaerobic and aerobic bioremediation
  • Bench-scale tests for in-situ treatment/neutralization/fixation
  • Pilot tests for in-situ chemical oxidation
  • Pilot tests for soil vapor extraction
  • Pilot tests for air sparging
  • Pilot tests for high vacuum/dual phase/multi phase extraction
  • Pilot tests for non-aqueous phase liquid (NAPL) recovery, and
  • Aquifer testing for ground water recovery.

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