An advanced version of BOS 200® designed for tougher petroleum sites with LNAPL, complex hydrocarbon mixtures, or high-mass loading.
How It Works
BOS 200+ is a patented in-situ remediation amendment that expands on the proven BOS 200 platform. It enhances performance at challenging petroleum-contaminated sites through advanced sorption, microbial colonization, and sustained biodegradation.
Mechanism of Action:
- Adsorption: High-purity powdered activated carbon (AC) immediately captures hydrophobic contaminants like LNAPL and BTEX compounds, reducing aqueous-phase concentrations on contact
- Biological Colonization: The AC particle structure allows for deep microbial inoculation and biofilm growth within and off the carbon surface—something liquid or colloidal carbon cannot replicate due to size and pore structure
- Enhanced Biodegradation: A proprietary blend of hydrocarbon-degrading microbes, carbohydrates, amino acids, and both fast and time-release terminal electron acceptors supports immediate and long-term microbial activity
- Long-Term Performance: The system is designed to function under both aerobic and anaerobic conditions and is largely insensitive to groundwater geochemistry (e.g. pH, ORP, salinity)
Performance Results
BOS 200+ has demonstrated exceptional contaminant reduction and persistence even under complex conditions.
- LNAPL Mass Reduction: Documented disappearance of measurable product in <6 months
- High-Concentration Site Performance: >95% BTEX and TPH reduction across source and downgradient areas
- Longevity: Active biological performance observed 2–4+ years post-injection, even in anaerobic, nutrient-poor aquifers
Common applications:
- LNAPL source areas and smear zones
- Sites with long-term rebound or MNA failure
- High-concentration PHC plumes
- Regulatory-driven active treatment mandates
- PRB installations to intercept migrating PHC mass
Typical site types:
- Refineries and fuel depots
- Military installations
- Oil and lube blending facilities
- Airports
- Industrial manufacturing and transport terminals
- Coastal or high-groundwater locations with PHC migration
Product Comparison
| Feature / Spec | BOS 100® | CAT 100® | BOS 200® | BOS 200+® |
|---|---|---|---|---|
| Target Contaminants | Chlorinated solvents (TCE, PCE, DCE, VC) | CVOCs, DNAPL, mixed chlorinated solvent mass | Petroleum hydrocarbons (BTEX, TPH, LNAPL) | Complex PHC sites: LNAPL, MTBE, glycols, etc. |
| Ideal Use Cases | CVOC dissolved groundwater plumes, low-high perm zones, permeable reactive barriers (PRB) | DNAPL source zones, high-mass CVOC, mixed plumes | BTEX/LNAPL plumes, blend into backfill of excavation | LNAPL source zones, high-mass VOC, PRBs |
| Treatment Mechanism | Adsorption + abiotic reductive dechlorination (ZVI) | Adsorption + catalytic degradation + engineered bio | Adsorption + aerobic biodegradation | Adsorption + enhanced bio (aerobic & anaerobic) |
| Activated Carbon Type | Granular AC impregnated with reactive iron | Granular AC impregnated with reactive iron | Powdered activated carbon | Granular AC impregnated with reactive iron |
| Biological Degradation Component | No | Yes | Yes | Yes |
| Delivery Methods | Direct push, trench, soil mix, packer, GeoTAP | Direct push, trench, soil mix, packer, GeoTAP | Direct push, trench, soil mix, packer, GeoTAP | Direct push, trench, soil mix, packer, GeoTAP |
| Year Released | 2004 | 2016 | 2002 | 2016 |
| Projects Completed | 100+ | 50+ | 1000+ | 200+ |
