subjecting said {HEAD ~ algal spores} to floway {TAIL ~ operating conditions} so as to grow algae forming an algal turf in said water, said algal turf having a surface comprising cell walls 
to floway
subjecting said { HEAD ~ algal spores } to floway { TAIL ~ operating conditions } so as to grow algae forming an algal turf in said water , said algal turf having a surface comprising cell walls
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH