Water Treatment Plants, Water Treatment, Envent Corporation is the Industry Leader for Tank, Pipeline, Mobile & Industrial Degassing, Vapor Control Scrubbers, Mobile Water Treatment & Refinery Turnaround Services; Tank Degassing, Vapor & Odor Control, Remediation & Soil Vapor Extraction, Groundwater Dewatering & Water Treatment Systems & Environmental Services; Tank degassing, vapor & odor control, remediation & soil vapor extraction, groundwater dewatering & water treatment systems & environmental services ...