3 critical elements for biological wastewater treatment
Waterclean’s floating treatment media encapsulates the three critical elements for biological wastewater treatment.
Microbiology within the immense mass of plant roots
To avert tracking and short circuiting
Maximising hydraulic retention time (HRT)
Floating treatment wetlands are cost effective and will extend the productive life of your municipal wastewater treatment plant.
Floating treatment wetlands are highly effective for
De-nitrification and polishing
Reduction in bio-chemical oxygen demand
Removal of total suspended solids (TSS)
Reduction in faecal coliforms
Reduction in phosphorus
How floating treatment wetlands are constructed
Floating treatment wetlands are made from 100% recycled polyethylene terephthalate, commonly known as PET and used in plastic drink bottles. The recycled plastic is made into a non-woven, non-toxic, durable matrix of fibres. Dense and porous, it is extremely inert and has been coated in a UV-resistant resin to US Environmental Protection Agency irradiation accelerated degradation standards.
What plants do we use?
The plant species suitable for floating media are selected according to the reserve buoyancy required for the application. Generally, terrestrial species, such as wetland sedges, rushes and grasses, are the best option as they develop superior root structures within the water to provide for an increased surface area. However, many other planting types are also used. The recommended planting density is three to five plants per square metre.