16 to this end there is provided a pump 48 located in the bottom of holding tank 14 in the final treatment station 16 there is an inlet 52 designed to receive the wastewater from the holding tank 14 in a first section of the final treatment station 16 there is provided a plurality of media 54 which are mounted on a support 56 as will be discussed in greater detail hereinbelow situated below media 54 and support 56 is a pump 58 to spray the wastewater from a bottom portion to the top subsequently the wastewater passes through outlet 60 to a second chamber generally designated by reference numeral 62 as may be seen in the drawings there are provided at least two hydrocyclones in this regard a first hydrocyclone 65 is arranged in a conventional manner wherein the conical portion is situated at the lower extremity the fluid is fed in through an upper feed inlet wherein a rotational motion is imparted thereto the acute angle near the bottom causes bridging and plugging wherein the liquid will reverse and flow upwardly along with an air core the solids will be discharged at the bottom a second hydrocyclone 67 is arranged in a reverse direction with the conical end being situated upwardly to receive water from the first hydrocyclone 65 thereby permitting addition of air in the water optionally an h v unit 55 may be used as may be seen in fig6 to 9 a unique feature of the present invention is the specially designed media thus each sheet of media comprises a central u201c corrugated u201d portion which is in the form of generally v shaped portions designated by reference.