{HEAD ~ Equipment} and process for {TAIL ~ solid waste minimization} in chromium and heavy metal removal from groundwater 
for
{ HEAD ~ Equipment } and process for { TAIL ~ solid waste minimization } in chromium and heavy metal removal from groundwater
HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH