Language: English
In this webinar recording, first broadcast 12/11/2025, guest speakers Christian Nielsen of Tauw and Alberto Cicognani of A2A Ambiente showcase the successful remediation of a large, complex site contaminated with a variety of chlorinated solvents, using a combined in situ approach.
Joined by Paola Goria of REGENESIS, they discuss the design implementation and validation of the complex remediation work across the 20,000m2 site at a waste treatment and management facility owned by A2A Ambiente.
Learn how collaboration, innovation, and adaptive fieldwork led to a successful outcome in a demanding remediation project!
What You’ll Learn:
- Site Conceptual Model: Understanding the complex contamination profile and risk assessment.
- Remedial Design: How from a successful pilot test Tauw informed a full-scale strategy using three in situ technologies from REGENESIS:
- Enhanced Reductive Dechlorination (ERD)
- In Situ Chemical Reduction (ISCR)
- In Situ Sorption and Bioremediation (ISSB) with PlumeStop colloidal activated carbon
- Details on operational execution and site specific challenges overcome, including:
- Challenging geology
- Integration with pump & treat system
- Limited time frame
- Results:
- Two orders of magnitude reduction in contaminant concentrations
- Compliance with stringent regulatory limits
- Full-scale validation and monitoring success
