Heavy Metal Contaminated Soil Fixation - Soil and Groundwater - Site Remediation
Soil Fixation of Heavy Metals
Blastox 215® is a derivative of the same chemical formulation as that found in our Blastox® product. Its smaller particle size provides more reactive surface which is beneficial when stabilizing heavy metals for contaminated soil remediation projects. Due to the low dose rate and competitive pricing, Blastox 215® is becoming an effective resource for many engineers and also project managers.
Contaminated Soil Sampling
Use of a proper contaminated soil sampling method is vital to obtain a representative sample of soil waste. A representative sample of soil waste is necessary to accurately characterize (hazardous or non-hazardous) your stabilized waste piles. If improperly conducted, valuable time and resources may be wasted by contractors, generators and consultants. The bottom line is that sampling errors result in additional, unnecessary costs to everyone involved.
The EPA requires a Toxicity Characteristic Leaching Procedure (TCLP) test (Method 1311) to determine if the contaminated soil needs to be managed as hazardous or non-hazardous waste. Soils exhibiting hazardous characteristics are disposed of at a facility permitted for that material, or be treated in the field prior to off-site disposal. In nearly every case, stabilizing the soil in the field prior to disposal can save the generator a great deal of money over transporting and disposing of the soil as a hazardous waste.
TCLP Extraction
The required number for soil sampling to collect for testing is determined by the project work plan, or local regulations. Please consult these resources to determine how many samples need to be collected and tested. At a minimum, (1) of the four (4) large samples collected above will be split into two (2) smaller samples. One split is be sent to a lab for TCLP testing and the other split will be kept separate. This is retained by the responsible party in the event more testing is necessary. Samples sent to lab should be approximately 250 grams each, or a one quart baggie. Successful heavy metal stabilization: (1) using the right reagent, (2) using the right dosage and (3) achieving good mixing.
Blastox® 215 is a versatile heavy metals stabilization reagent that is effective across a wide variety of waste types and metal concentrations and soil sampling methods. Because of its effectiveness, Blastox® 215 has been used successfully on thousands of tons of heavy metal contaminated soil. Its chemistry has a proven long-term stability benefit. You can apply it at low dose rates and have peace of mind knowing that the soil remediation waste will remain stable, always.