🌬️ Vertical Air Stripper + Scrubber + GAC Polisher

The WFS air stripper system is a complete VOC-removal train designed to strip BTEX, naphthalenes, and other soluble hydrocarbons from produced water, flowback, and refinery process streams — and then polish the off-gas to meet stringent emissions limits.

**Stage 1 — Vertical Air Stripper.** A cylindrical packed tower (random or structured packing) with a side-mounted forced-draft blower delivers countercurrent air contact. The tower has 2–4 internal chambers and stripping efficiencies above 99% on BTEX at typical air-to-water ratios of 30:1 to 100:1. Design flow range is 50–100 m³/hr per tower.

**Stage 2 — Rectangular Scrubber Tank.** Off-gas from the stripper enters a rectangular scrubber with specially designed spray distributors, a chevron mist eliminator, and a recirculating scrubbing solution (caustic, oxidizer, or surfactant) tuned to the contaminant being captured.

**Stage 3 — GAC Polisher Series.** Scrubber exhaust passes through 2–4 cylindrical GAC vessels in series — typically 1,000–2,000 lb of vapor-phase activated carbon per vessel, providing 6–18 months between changeouts on typical VOC loads. Lead-lag-polish configuration ensures breakthrough on the lead vessel is detected before it reaches the discharge.