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