{TAIL ~ The reaction chamber} of this invention, having a plurality of {HEAD ~ available side ports}, as well as injection side ports, may very well be used itself in treating waste water, after the selection of the injection side ports 
{ TAIL ~ The reaction chamber } of this invention , having a plurality of { HEAD ~ available side ports } , as well as injection side ports , may very well be used itself in treating waste water , after the selection of the injection side ports
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH