The open joint-stock research and production company FiBrA develops production of the “FilLis” sorption materials. The materials are based on non-spherical oxide-hydroxide phases of aluminum and fibrous bases, and are designed to sterilize and filter liquids from bacteria and viruses. The action of “FilLis” bases upon the combination of electrokinetic trapping, van der Waals adsorption and mechanic filtration, which significantly broadens the range of substances and particles which can be filtered from aquatic media with this material.
In April 2006 OJSC R&P FiBrA has commenced introduction of the sorbent production technology. The technology was developed by a group of Tomsk scientists led by Professor V. N. Lisetsky (patent of the RF №2242276 dated November 27, 2003, published on December 20, 2004).
In June 2006 the first industrial prototypes of the “FilLis 1” filter material were produced in the development laboratory of the company. The tests, carried out in the Laboratory of Genetic Markers, Plasmids and Uncultivated Microorganisms of the State Scientific Center of Virology and Biotechnology “Vector”, have demonstrated the effectiveness of sorption of the MS2 model bacteriophage.
In October 2006 a scientific inquiry has resulted in development of mineral-based “FilLis 2” and “FilLis 3” sorbents.
In spring of 2007 there begun the development of a new “FilLis 4” sorbent, which is based on a few active components and natural zeolite. The sorbent is designed for purification of drinking and waste water from heavy metals and arsenic.
Since November 2007 OJSC R&P FiBrA has been working on improvement of production conditions and reduction of production costs for the “FilLis” sorbents.
May of 2008 saw the first positive results of setting the non-spherical oxide-hydroxide aluminum phases upon ceramic bases.
The “FilLis” filter materials are composed of positively charged needle-shaped boehmite particles (about 2 nm wide and 20—80 nm long), a component with a negatively charged surface (goethite and a modifier), silicon oxide. The substances are applied to a fibrous material. Three types of fibrous bases have been tested for different applications.
Depending on the type of a surface modifier, the filter material has a unique capability of absorbing pathogenic microorganisms, viruses, toxins and ions of heavy metals found in water and having sizes smaller than an average space between fibers of the materials. It is effective not only in neutral and acidic media, but also in alkaline media with pH up to 9.5.
Scope of application:
1. Advanced treatment of drinking water for personal use:
· water filtration in camping or extreme conditions (bottles with microbial cartridge for personal use);
· domestic water treatment systems with low output (jug filters);
· domestic water treatment systems with high output.
2. Scientific research:
· concentration of viruses, bacteria, biologic molecules, proteins;
· sampling and transportation of the samples;
· chromatography of biological material;
· scientific research in universities and R&D institutes.
3. Advanced treatment of water solutions in industry:
· for production of dairy and meat products;
· for production of infant food;
· for production of bottled water;
· for production of alcoholic and soft drinks.
4. Water treatment and sterilization in medicine and pharmaceutics industry, perfumery and cosmetology, including:
· production of injection preparations;
· production of disinfectants.
5. Industrial biotechnological production.
At present time technical specifications for the «FilLis” sorption materials are being developed. A process of receiving a certificate of conformity is under way.
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