Abstract: A system for separating contaminants from fluids provides a modular mobile continuously operable site configurable multi-phase filtering system having an oil water separator 100, a dwell tank 220, a waste tank 250, an electrocoagulator 120 having plural concentrically aligned perforated tubular sacrificial electrodes, a first and a parallel second particulate filter 300A, 300B, a first and parallel second step-down membrane filter 400A, 400B, an optional ultra filtration filter 500, an optional reverse osmosis filter 600, a mixing station 700 and a totalizer and sensor array 900 to analyze, filter and treat fluids by separating contaminants and particulates and adjusting chemical content to meet specifications desired which will allow the use and re-use of the filtered fluid and the separated contaminants.