PHYTO-INTEGRATED™ Remediation Expanding Phytoremediation – Combining Engineering, Treatment Media, & Vegetation – New Perspective on Phytoremediation

Misconceptions about Phytoremediation of Groundwater

• Results are inconsistent
• Has limited applications (shallow aquifers)

Engineered Phytoremediation
– The TreeWell® Technology Solution –

• Confidently predict hydraulic effects
• Assured remedial impact on soluble contaminants
• Treat groundwater up to 30 meters deep (and more)
• Targets specific horizons over a wide range of conditions
• Limits/Eliminates
  • phytotoxicity – via bioreactor effect
  • surface/rainwater confounding & irrigation needs

TreeWell Technology
– Basic Approach

1. Borehole excavated to the horizon of interest

2. Root_Sleeve liner to be placed in the hole

3. Root_Sleeve  liner installed after safety platform is placed over the hole – aeration & other tubing added

4. Hole is backfilled with topsoil & selected amendments

5. Trees are planted

TreeWell Technology
– Design Options

Hydraulic and/or
Bio-Barrier

Deep Groundwater Target

Phyto-Integrated™ Remediation
“Straw” system w/replaceable cartridge

• Tree removes GW in closed system creating a hydraulic head
• GW flows into the lower piezometer screen at targeted horizon
• GW flows up through amendment cartridge for:
  • treatment (Proprietary ISCR Reagents for CVOCs/ pesticides/oxidized metals, or
  • sorption (metals & compounds such as PFAS)

• Treated GW enters closed system through upper screen for use by tree

Request for Demonstration Sites

Required characteristics:

• Groundwater plume that needs to be remediated
• Sufficient space and time for phytoremediation approach
• Type 1: Groundwater contamination with CVOCs, PFAS, Metals
• Type 2: Groundwater with deep contaminated layer (including
  fractured bedrock strata)

Benefits:

• Lower life-time cost
• Lower maintenance
• Passive/active system that improves with time
• Green, sustainable and effective technology