The purpose of the filter OFS 3,0-0,6.
Filters sorption coal OFS 3,0-0,6 used in the plants producing the primary desalinated water to protect against biological fouling of ion exchange resins in ion-exchange filters (organomegaly). Filters OFS is used as the first or second stage of purification of stormwater from industrial sites and hydrotechnical structures; as well as the final stage of tertiary treatment of industrial effluents before discharge into water bodies for household purposes. Filters OFS is used as a stage of drinking water treatment with the aim of improving the organoleptic indicators.
As the filter loading at the FSO 3,0-0,6 are special sorbents, such as MEW, colic etc., activated carbons on the basis of stone and wood coal, coking coal.
The principle of operation filter sorption coal OFS 3,0-0,6
The initial flow of fluid under pressure enters the filter sorption coal OFS 3,0-0,6. There it is evenly distributed overhead device lie, then passes through the filter material. The flow comes from the top-down. The removed impurities are absorbed, or, in other words sorbirovannoe surface of the particles of filter loading, then the filtrate through the bottom of the distribution device, the NRU eliminated from the apparatus into the collecting manifold. The optimal temperature value of incoming flow is 90°C, minimum - 70°C. In the filtering process one or two times a week surgery preventive backwashing and backwashing the filter load. This is to prevent caking and removal of organic films. It should be noted that this operation must be done with great caution, to avoid the removal of the upper layers of the filter material.
Since technology is the recovery of the sorption activity of the sorbent is labor-intensive and very energy-intensive, the filter materials of this group usually are used once. Spent filter materials disposed of, and backfilled in a new filter sorption coal OFS 3,0-0,6.
The duty cycle of the filter, activated carbon sorption is completed when the pressure difference between inlet and outlet in the filter is ?0.3 MPa, or under the condition exceeding one of the normalized indicators of the filtrate.