Plastic polypropylene Q-pack for Tertiary filtration
Effluent water treatment
Q-pack large pore volumes and surface areas make it an ideal media for biological treatment of effluent water. Biofilm processes are excellent for treating water containing nitrogen, BOD etc. Many years of experience has shown that Filtralite is the perfect media for these types of plants.
Q-pack can not only be used in traditional effluent water treatment, but also for odour treatment at sewage treatment works. The porous material is excellent for use in biofilters for removal of hydrogen sulphate and other biodegradable odorous compounds.
Among the essential parts in the biological aerated filters, (BAF), is the filter media. The biomass that treats organic and nitrogenous matters is fixed to the Filtralite medium, which also works well as a mechanical filter for suspended solids. Filtralite is used both in processes of aerobe systems (nitrification and organic matter) and anoxic systems (denitrification).
As water is a scarce resource in many parts of the world, reuse of water has become more and more normal. To be able to reuse the effluents, tertiary filtration for removal of suspended solids is necessary. The same will be the situation in areas with extra sensitive recipients.
Q-pack has proved to be as good as, or better than, comparable filter media, both in single- and dual media filters. In dual media filters, by replacing the most traditional top layer filter material, anthracite, with Q-pack, time between backwashes can be increased by about 25%. This means fewer stops for backwash and reduced use of backwash water, resulting in more stable operation and lower operational costs.
In single media filters usingQ-pack the time between backwashes has been recorded to be up to 4-5 times as long as for filt ers using sand as filter media.
Q-pack with Filtralite can be operated within a large range of filtration rates. The filtration rate will always be dependent of the configuration of the filter and the treatment process. Filtralite tertiary filters can operate at up to around 15-20 m/h.
|Dimension (mm)||Number per m3||Bulk density||Void ratio (%)||Packing factory (m-1)||Drop point|
2.Easily operation and installation
3.High efficiency in oil water separatore