Coconuts almost full advantage, but often redundant Coconut fiber unused, introduce technology to take advantage of Coconut fiber.
Coconuts are commonly grown in Vietnam. Discarded coconut shells, but many places are research materials are used with many different ways around the world, is commonly used as fuel, Coconut fiber mattresses, pads; coco peat use in agriculture as the substrate, fertilizer ..; and there have been many studies to fully exploit the advantages of using coconut shells as waste; Using electricity production; fabricated parts bins, floor coating inside the door and car; Then to make the helmet, bulletproof armor or coconut shells to produce lightweight concrete building panels.
US7097768 patent has been granted by the authors Pierre Talbot, Denis Pettigrew, Roger Lacasse, Ginette Belanger, Yves Arcand, Jean Pierre Dautais, referring to the biological filter material for wastewater treatment is very easy to find materials in Vietnam is Coconut fiber, while referring to the wastewater treatment system using this filter material. Biological filter material made from Coconut fiber with abundant raw materials, cheap; manufacturing process waste is very low; the filler material has many advantages and can be reused.
Coir can be obtained by dry or wet, comprising the steps of: peeling, tearing, combing, screening. This material is lightweight, highly elastic, can be compressed to reduce shipping costs, and can return to the original volume after shipping.
In coconut shell, by weight, 19% dry outer layer, 34% and 47% coco peat is Coconut fiber. Coco peat is characterized attract and retain high humidity. Coconut fiber provides greater surface area to absorb pollutants. Also, acne and Coconut fiber have the ability to provide nutrients for the microorganisms.
Under patent number US7097768, coco peat Coconut fiber associated with forming the "grain" of different sizes depending on the requirements (so-called seeds coir) to filter material. The Coconut fiber particles less fractured than the natural Coconut fiber, thanks to high elasticity allows filtering layer density appropriate to the waste water to be treated and flow characteristics. The Coconut fiber foam particles, high capillarity should fit to handle effluent flowing; and have good hydrophilic properties, so very good for the system when used for the first time, using interruption, using the short cycle or during times when conditions have not been granted country. In addition, the chemical and physical properties of Coconut fiber particles can be improved by microorganisms. This Coconut fiber particles can be filtered as the coliform bacteria. The downside of Coconut fiber particles can not control is the degree of effluent moving, and prone to oxidation ability of the system.
Depending on the size of coconut shell and shell splitting, we can easily choose to create the particle size Coconut fiber as required. So Coconut fiber particles can easily be distributed in all kinds of shapes filtration system, in the higher segment, winding ...
Wastewater filtration layer can use a particle size, or Coconut fiber mixed with particles of different diameters, such as particle size greater than 3 mm in combination with diameters smaller than 3 mm, including very small particles depending on the requirements of the filtration system.
Many biological filter material for water treatment waste, but does not have any kind of meet all the required characteristics. For example, commonly used sand filter waste water through the natural flow, but heavy, poor capillary, under the impact of hydraulic; Peat has many advantages over the sand, but low elasticity, poor stability and limited power to influence flow ability and time use, can better use perlite (perlite- kind containing high silica minerals formed from volcanic lava flows).
To match user requirements, Coconut fiber beads can be used in combination with the filter material such as peat, inorganic minerals such as sand, gravel, perlite, geothermal cloth, polymeric materials, or total the materials mentioned above to further increase the handling characteristics of the filter material.
According to the invention, the biological filter material layer should be around 20% to 80% (by weight) are particles Coconut fiber, 50% is the most appropriate, add the remaining coordinate other filter materials. Following the introduction of filtration systems use filtering material present invention.
The system includes tank effluent filter, filter effluent distribution system. Including cavity filters containing filter material layer. Classes can filter consists Coconut fiber particles described above, or may be added to the sand, peat, gravel, perlite, geothermal fabric, polymer materials ... input compartment above the water from distribution system and waste water output at the bottom of the filter discharge treated water. Coconut shells have large water absorption, high strength, could remove bacteria and reduces pressure at the water flows through.
Particle size of Coconut fiber determine its ability to filter, particle size less capable of handling small size. Particle size Coconut fiber can be used in the handling of the circulatory system, small particle size usually used for single pass filter system.
According to STINFO Number 1 & 2/2013
