Multilevel pipeline-mixed coacervation device

Abstract

The invention relates to a multilevel pipeline-mixed coacervation device. According to the technical scheme, the multilevel pipeline-mixed coacervation device comprises a plurality of levels of coacervation reaction pipes which are connected in series, each level of coacervation reaction pipes is in a snake shape, the pipe diameters of the same levels of coacervation reaction pipes are the same, and the pipe diameters of the coacervation reaction pipes are enlarged level by level in an advancing direction of sewage to be treated. When practical sewage is treated, pollutants are sufficiently reacted and polymerized in the sewage, therefore, the invention ensures favorable coagulation treatment effect, and avoids secondary pollution generated by increasing the input amount of a coagulant for poor coagulate effect.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a multi-stage pipeline mixing and coagulation device. Background technique [0002] When carrying out sewage treatment, it is generally necessary to add a coagulant to the sewage for coagulation. The specific coagulation method is: [0003] 1. The coagulation method can reduce the turbidity and chromaticity of wastewater, remove various polymer substances, organic substances, and some heavy metals and radioactive substances, etc., and has been widely used in the field of water treatment. The specific usage is to put a coagulant or a coagulant in the water for rapid mixing, so that the agent is quickly and evenly distributed in the water, so as to facilitate the hydrolysis of the coagulant, polymerize and give full play to the effects of various high-charge and low-polymerization substances on colloidal particles. Electric neutralization and destabilization, and then slow agitation t...

AI Technical Summary

Problems solved by technology

Then the disadvantage of the existing method is

[0006] The first point is the input of coagulant: the fluid in the pipeline is relatively flowing in a constant state, lacking the rapid change of the stream, and the purpose of rapid mixing cannot be achieved

[0007] The second point is to form flocs by adsorption and bridging: when the mixed water flows into the coagulation reaction tank, a certain amount of dissolution is required to slow down the flow rate, that is, a certain stoppage time is given for polymerization reaction. Due to the large reaction tank, the flow rate in the tank is not high. Uniform, the fluid has dead corners and flocs precipitate, and some short-circuit and quickly flow out of the reaction tank, the coagulation effect is not ideal

[0008] In order to reduce the input cost or the space is limited, some reduce the volume of the reaction tank, and increase the agitator to increase the coagulation speed because the stoppage time is reduced, but the clipping of the impeller to the water body is easy to affect the polymerization process, and the polymerization reaction is not perfect. Into the next process

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