Trace quantities of {HEAD ~ nutrients} 22, such as {TAIL ~ nitrogen} and phosphorous, are also added to the bioreactor 17 to support the methanotrophic microorganisms 21 
Trace quantities of { HEAD ~ nutrients } 22 , such as { TAIL ~ nitrogen } and phosphorous , are also added to the bioreactor 17 to support the methanotrophic microorganisms 21
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH