SAIL HERO Air Stripper System

Overview

The SAIL HERO Air Stripper System is an engineered ex-situ groundwater remediation solution designed for the efficient removal of volatile organic compounds (VOCs) from contaminated aquifers. Operating on the principle of air–water mass transfer via counter-current gas–liquid contact, the system facilitates volatilization of target contaminants—including benzene, toluene, ethylbenzene, xylenes (BTEX), methyl tertiary-butyl ether (MTBE), and radon—into a treated air stream. Its compact, modular tower architecture enables rapid deployment at small-scale or localized contamination sites such as gasoline service stations, brownfield parcels, and targeted treatment zones within larger remediation projects. The unit is optimized for continuous operation under variable influent concentrations and flow rates, delivering consistent performance in accordance with established environmental engineering principles.

Key Features

• Multi-stage counter-current aeration design achieving >99.99% removal efficiency for key VOCs under standard operating conditions
• Patented suction-based ventilation configuration—eliminates inter-stage leakage and improves energy efficiency compared to pressure-driven blower systems
• Modular stainless-steel tower construction with scalable stage count (typically 3–8 stages), allowing field-adjustable treatment intensity based on site-specific contaminant load and regulatory requirements
• Low-footprint vertical layout minimizes land use and installation footprint; total height configurable to meet spatial constraints (e.g., below-grade vaults or confined access areas)
• Anti-fouling perforated stainless-steel distribution plates engineered to resist scaling and biofilm accumulation, reducing maintenance frequency and extending service intervals
• Integrated corrosion-resistant housing and fluid-handling components compliant with ASTM A240 and ISO 9223 C5-M corrosion classification standards

Sample Compatibility & Compliance

The Air Stripper System is validated for treatment of groundwater with pH 5.5–8.5, turbidity <10 NTU, iron content <0.3 mg/L, and total suspended solids (TSS) <20 mg/L. It is compatible with common pre-treatment configurations including multimedia filtration and iron/manganese removal units. The system meets structural and operational requirements outlined in U.S. EPA Guidance for Ground Water Remediation (EPA/600/R-13/077) and aligns with ASTM D5092-21 for sampling and characterization of contaminated aquifers. All control logic and data logging functions support audit-ready operation per GLP and GMP frameworks; optional firmware upgrades enable 21 CFR Part 11–compliant electronic signatures and audit trails.

Software & Data Management

Equipped with an embedded industrial PLC (Siemens S7-1200 series) and HMI touchscreen interface, the system provides real-time monitoring of airflow rate, inlet/outlet VOC concentration (via optional PID sensor integration), water flow, pressure differentials across stages, and motor current draw. Historical operational data—including runtime, stage-wise pressure drop trends, and alarm logs—is stored locally for ≥18 months and exportable via USB or Modbus TCP/IP to centralized SCADA or LIMS platforms. Remote diagnostics and firmware updates are supported through secure TLS-encrypted Ethernet communication. Optional cloud connectivity enables automated compliance reporting aligned with state-level groundwater monitoring programs (e.g., NJDEP, NYSDOH).

Applications

• Point-of-extraction treatment at leaking underground storage tank (LUST) sites
• Polishing step following pump-and-treat systems to meet stringent discharge or reinjection criteria
• On-site treatment of excavated groundwater during excavation-based remediation
• Temporary deployment for emergency response to VOC plume migration events
• Integration into hybrid treatment trains combining air stripping with granular activated carbon (GAC) polishing or advanced oxidation processes (AOPs)

FAQ

What VOCs are most effectively removed by this air stripper?
BTEX compounds, MTBE, chlorinated ethenes (e.g., PCE, TCE), vinyl chloride, and radon demonstrate high Henry’s law constants (>0.1), making them highly amenable to air stripping. Performance is quantified per ASTM D3559-22 test protocols.
Can the system operate continuously under variable flow conditions?
Yes—the control system dynamically adjusts blower speed and valve positions to maintain optimal air-to-water ratio (typically 20:1 to 100:1) across ±30% flow variation without compromising removal efficiency.
Is third-party validation data available for regulatory submittals?
SAIL HERO provides site-specific treatability study templates and collaborates with accredited laboratories (e.g., ISO/IEC 17025-certified) to generate performance verification reports meeting ASTM D5092 and EPA SW-846 Method 8240D requirements.
How is maintenance access configured for internal components?
Each tower module includes hinged access panels with quick-release fasteners and integrated lifting lugs; no specialized rigging is required for routine inspection or plate cleaning.
Does the system require pretreatment for high-iron groundwater?
Yes—groundwater with dissolved iron >0.3 mg/L must undergo oxidation/filtration upstream to prevent fouling of stainless-steel internals and maintain long-term hydraulic stability.