The algal spores are subjected to floway operating conditions so as to grow {HEAD ~ algae} forming an algal turf in {TAIL ~ the flowing water} 
The algal spores are subjected to floway operating conditions so as to grow { HEAD ~ algae } forming an algal turf in { TAIL ~ the flowing water }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL