Also, the electrical current ionizes the oil, water or other fluids, improving separation of {HEAD ~ crude oil} from water and {TAIL ~ contaminants} 
from
Also , the electrical current ionizes the oil , water or other fluids , improving separation of { HEAD ~ crude oil } from water and { TAIL ~ contaminants }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL