WATER REMEDIATION

摘要

A portable modular water air stripper system (2) for remediation of contaminated groundwater (4) at an outdoor contamination site, has its primary components, including the frames of a vertical assembly of individually demountable tray units (30-44), sump (23) and cap member (62), formed as hollow rotationally molded plastic pieces. Each tray unit (30-44) has a removable air-porous sheet member (46) having air-flow apertures (48) with a diameter of 0.100 inches or less constructed to retain water (112) during stripping action by air passing upwardly through apertures (48). Each sheet member (46) has mounted thereon baffles (50-54) that define a tortuous water flow path across each tray (30-44). Baffles (50-54) can extend between and are substantially sealed to the undersurface of the next higher tray and a transfer duct (56) is arranged to guide the least contaminated groundwater downwards and laterally to a position in the next lowest tray unit, whereby the water will contact the most contaminated air of the next lowest tray.