SU2113A1 - Method for making peat filtering surfaces - Google Patents

Description

Hydrotrophe or peat, mechanically processed and mixed with water, coagulated with colloidal iron oxide and other reagents, has a high ability to pass water and aqueous solutions through the wet state. After drying, the ability of peat to pass water and aqueous solutions, as is known, increases. This filtering capacity of coagulated peat is not lost by it even after strong squeezing | peat mass. So, for example, edited at 75 atm. in narrow passages | coagulated peat plates well passed water even at a pressure of only 3 atm. During coagulation of peat, peat on the mass forms coarse grains, which even under high pressure do not pass through such openings, through which non-coagulated peat easily passes. To completely stop the passage of peat through the holes in 1 liter, it is enough to make them cone-shaped with a large hole on the entrance side. In such openings, particles and peat fibers are wedged and only one liquid is allowed to pass through. Instead of conical holes, a wide variety of hole shapes can be used, with one condition being that they are larger on the inlet side than on the outlet side.

The proposed method aims to use the above properties of coagulated peat for the manufacture of flotation surfaces from it.

The filtering surface is made of some strong metal so that the holes on the inlet side are much larger than on the outlet side, where they are made with a diameter of about 1 mm. When squeezing peat, these holes are filled with coagulated peat, which is wedged in them and does not go out. as water goes freely through it, goes about;; - Such a surface can be i “made of any strength, not za-; rises, i.e. does not impair its | the ability to pass water and po; This does not require any cleaning. Holey plates filled with coagulated peat, superior in their filtering ability to the web.

Due to the same properties of coagulated peat, it can also be used as a filtering peat. material for the device all filters. Coagulated peat will easily pass through water and aqueous solutions, retaining insoluble impurities. Since coagulated peat has not lost its adsorption capacity, it is used as a loose mass for filling the filter.

it can serve as a filter bed for filtering natural and mineral waters, various solutions in chemical factories and plants, and so on. The filtration capacity of the dried coagulated peat can also be used to filter organic solutions after appropriate preparation of the peat by extracting organic substances from it.

PREVENTION OF PATENT.

A method of making filtering surfaces of peat, characterized in that the peat is pre-coagulated with colloidal iron oxide or other reagents and then inserted into holes of metal plates having an extension on the side of the filter fluid flow.