CLARIFIER AND WATER PURIFICATION AND CLARIFICATION PLANT

摘要

The present invention relates to a clarifier that comprises a body in the shape of a hollow cylinder having its lower end connected to a conical sludge compactor. The clarifier also includes units for feeding starting water and reactants as well as a unit for discharging the clarified water. The body includes a clarification chamber having a flocculation chamber arranged therein that further comprises a reaction chamber, said chambers being concentrically arranged. The clarification chamber is made in the shape of a truncated cone that widens towards the top. The flocculation chamber is made in the shape of a cylinder comprising a conical flare in its lower part as well as a plurality of baffles, wherein some baffles are arranged at the outlet of the flare while the others are regularly distributed on the inner surface of the chamber across the flow of purified water. In order to create a stable area of suspended sediments while maintaining a constant density, the clarification chamber and the sludge compactor are provided with ducts for separately discharging the purified water. This invention also relates to a water purification and clarification plant that comprises the following members connected in series: an aerator, two clarifiers comprising areas of suspended sediments and a sand filter. Each clarifier is fitted with ducts with units for supplying the reactants. The sediment discharge ducts from each clarifier are provided with pumps for feeding the sediments towards the filter (presses). The water discharge duct from the second clarifier towards the sand filter is also provided with a pump. The aerator consists of a water ejector comprising a supply pump, wherein the suction pipe of said pump is connected to the starting water duct into which gives a duct comprising a pump for withdrawing water from the suspended sediment area in the first clarifier.