The treatment in accordance with the system starts with {HEAD ~ biologic and enzymatic treatment} of {TAIL ~ the materials} in the waste water stream 
of
The treatment in accordance with the system starts with { HEAD ~ biologic and enzymatic treatment } of { TAIL ~ the materials } in the waste water stream
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH