The fluid is then collected, filtered, and the filtrate is disposed as wastewater, and {HEAD ~ the filters} containing the filtered solid is placed in {TAIL ~ environmentally safe sealed containers} for disposal 
The fluid is then collected , filtered , and the filtrate is disposed as wastewater , and { HEAD ~ the filters } containing the filtered solid is placed in { TAIL ~ environmentally safe sealed containers } for disposal
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH