**4. Acronyms**

A - Ampere AC - Alternate Current ACE SeparatorTM - Alternating Current electrocoagulation BOD - Biochemical Oxygen Demand BTEX - Benzeno, Tolueno, Etil-Benzeno and Xilenos) COD - Chemical Oxygen Demand DC - Direct Current Delectrode – Distance between electrodes DSA® - Dimensionally Stable Anode EC - Electrocoagulation EF - Electroflocculation EPA - Environmental Protection Agency Hz - Hertz O&G - Oils and Greases pHi – initial pH TOC - Total Organic Carbon TSS - Total Suspended Solids V - Volt
