When a client approached Covanta Environmental Solutions in search of quicker turnaround times on cleaning petroleum-based debris in railroad tanker cars, the company had just the answer: custom-built vacuum units that significantly reduce cleaning time — and get the cars back on the rails and generating revenue faster than before.Covanta fabricated the trailer-mounted units in-house and calls them VacSimizers. They’re towed by either Peterbilt 389 or Freightliner 122SD tractor cabs. By combining a 5,000-gallon tank (that’s roughly as much capacity as a typical tanker trailer) with the smaller size and greater maneuverability of a standard vacuum truck, the unit offers
