ClearFox® nature is a prefabricated small sewage treatment plant according to Euro standard 12566-3 which is manufactured in a range of size from 1-8 persons (p.e). The treated effluent water can be charged into a percolation area/underground soakaway, in watercourses or even returned back to reuse this water after a treatment. If there is enough gravity, the system can operate without any electricity.
Complete plants with no energy – ClearFox® nature
The cleaning process happens in three stages. The raw sewage water enters the primary treatment. The primary sludge settles and is reduced in volume by undisturbed digestion while absence of oxygen. At the end of the pretreatment, the hydraulic flow is reduced, the hydraulic peaks are buffered and balanced out over the day. The mechanical treated effluent is then constantly passed over the day in the following bioreactor. The bioreactor consists of a system of aeration and carrier elements that are arranged in a defined order in layers one above the other. To distribute the water on the upper surface of the bioreactor there is an equipment consisting of a tip and a distribution base. The reactor effluent from the pretreatment fills the tip, which drains the water (with a flush) onto the distribution base. The sewage spilled into the underlying system of filling elements and passes it from the top to the bottom. On the carrier elements settle bacteria, which clean the water. By means of the so-called cascaded plug flow the water is completely purified in one single pass. Parallel to this the increasing secondary sludge is reduced in volume and biological degreeable. The volume is discharged with the effluent; the concentration is still below the legal requirements.
This technology is the first time to be apllied in a small sewage treatment plant. Due to this there is no additional clarifier such as in a conventional biofilm system necessary. The system of filling material, with its loading facility is in balance with the degradation, biomass distribution and rinsing. Therefore, the filling elements need not to be cleaned or replaced as in biofilters, the usage is – by proper operation- for lifetime totally without any changes.
The simple structure and the used biofilm technology, makes this system ideal for decentralized structures. Main features are a very stable operation (underload, overload no problem), and enormous cost savings in the long run, because of less disposal costs and no use of technical parts.
Normally the plant achieves the required cleaning performance within a short time, moreover the carrier elements can optionally be enriched with enzymes to speed up the startup time.
In case of not enough gravity for operation without energy there is a power module available, including mini pump which lifts the purified water to the required height. Alternatively, the mini-pump also can be connected to a main power supply
If using the treated water as process water,
anhygienic modul can be connected downstream after the plant.
By inserting filter bags (textile screen) in the pre-treatment and composting the filtration residue (sludge), a conventional sludge disposal will not be necessary.
tested acc. EN 12566-3 ideal for:
- one or two family homes
- weekend houses
- holiday homes
- mountain resorts
- touristic branche
- cost safing
The development of this innovative treatment system was supported by the
Bavarian Council for Economic Affairs, Infastructure, Traffic and Technology.
- homogenization of hydraulic tips
- zones for the sludge digestion
- plug and play
- biofilm suitable for underload and overload
Reliable and safe …
The implemented biofilm ClearFox® nature