Developed by combining only the advantages of the activated sludge processing and biofilm processing, the medium is advanced designed with greater effective surface and easy air penetration. Organic matters and nutrient salts that are formed on the medium surface are processed either by directly injecting air into the medium reactor or by floating the medium, through mechanical or hydraulic mean.
The process is uniquely characterized by requiring smaller reactor size as the medium is able to retain high-concentrate bio film, non-clog during the stationary state and non-expansion phenomenon, which is commonly found in activated sludge processing. It is economically sound as it requires no new facility to be erected,
but many forms of existing facility can be utilized. The process is proven to be an efficient method in dealing with organic matters and nutrient salts (Nitrogen, Phosphorous).

- Relatively small floor space.
- Free movement even with over 50% filling.
- Strong response to load fluctuations.
- Superb removal effect on nitrogen and phosphorous.
- Low sludge production.
- Non-plug tank and no sludge expansion.
- Easy maintenance and high stability.
- Flexible system.
- Easy repair.
- Semi-permanent medium.
- Strong medium against high-concentrate saline waste & sewage water.

Waste water, Purification water, Industrial water, Sewage water, River water, Lake water and
Dual water treatment