Two-phase adsorption tank for active coke adsorption process

Abstract

The invention belongs to the technical field of water treatment, and discloses a two-phase adsorption tank for an active coke adsorption process; a tank body sequentially comprises a water inlet and distribution area, a fluidized bed and a fixed bed from bottom to top; the fluidized bed and the fixed bed are filled with active coke; the water inlet and distribution area is connected with a water inlet pipe which is used for introducing raw water; the water inlet and distribution area and the fluidized bed are separated by a filter plate, and a plurality of filter heads are uniformly mounted on the filter plate; the fluidized bed and the fixed bed are separated by an adsorption tank, and the adsorption tank is internally provided with the fixed bed and externally provided with the fluidized bed; the bottom of the fixed bed is connected with a coke outlet pipe; the coke outlet pipe is respectively connected with a coke discharge pipe and a coke return pipe outside the tank body; the coke return pipe is communicated with the fluidized bed; and a water outlet pipe is arranged at the lower part of the fixed bed, an inlet of the water outlet pipe is provided with a filter screen. The fluidized bed and the fixed bed are organically combined, the whole structure is compact, operation is easy and convenient, manpower resources are saved, operation energy consumption is low, and pollutants in sewage can be effectively adsorbed and removed.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to an adsorption pool used in an active coke adsorption process. Background technique [0002] There are two types of activated coke adsorption pools: fluidized bed and fixed bed. The active coke in the fluidized bed adsorption tank is easy to lose, and a special recovery system needs to be set up. After the fixed-bed adsorption tank has been in operation for a period of time, the active coke needs to be backwashed to restore its adsorption capacity; in addition, the activated coke that has lost its adsorption capacity needs to be discharged from the tank and new active coke should be replenished at the same time. It can be seen that the existing activated coke adsorption pools generally have complex pool structures, complex operating procedures, difficult operating techniques, a large amount of manpower, high energy consumption, and general practicability. Co...

AI Technical Summary

Problems solved by technology

It can be seen that the existing active coke adsorption tanks generally have complex structure, complex operation procedures, difficult operation technology, a large amount of manpower, high energy consumption, and general practicability.

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