A wastewater treatment apparatus having a fixed film media apparatus having insertable high surface area polymer cartridges providing growth surfaces for autotrophic or heterotrophic bacteria and a protective shielding surface which isolates the biofilm from turbulence within the wastewater treatment system. A method of placement of said media apparatus within the aeration and/or clarifier section of the wastewater treatment apparatus.

 
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< Wastewater purification plant by means of plants

< Method for demineralizing condensate

> Ultraviolet water sterilizer

> Nanometer scale structures

~ 00611