Sustainable, green remediation is recommended to reduce the environmental impact of the removal of existing soil or groundwater contamination. It has the added benefit of reducing costs and accelerating remediation to save time.
Following the ASTM standards greener remediation best management practices, Irwin Engineering saved time and money for their client in the removal of nitrate and perchlorate contamination using CL-Out bioremediation. Most of the savings came from switching from ground water extraction and treatment using ion-exchange to in situ bioremediation.
Using best management practices saved the following amount of money:
- Reused existing piping and structures – saved $10,000.
- Switched from ground water extraction for thermal treatment to in situ bioremediation – saved $2-3 million.
- Close delineation and remediation planning to reduce treatment volumes – saved $1-2 million.
- On-site biological treatment of well development water – saved $15,000.
- Used ion specific probes to optimize lab performance – saved $20,000.
- Used vegetation testing to delineate plume in the wetland – saved $50,000.
- Used horizontal wells for bioremediation injection where appropriate – saved $30,000.
Overall project savings $3 to $5 million.
Overall time savings 3 to 5 years.
The property was sold to a new owner and transferred without impairment.
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