High-turbidity water treatment device and sewage treatment system

Abstract

The invention provides a high-turbidity water treatment device, which comprises a first stirrer, a flow guide cylinder, a second stirrer, a rectifying plate and a precipitation zone, wherein the firststirrer is arranged in a coagulating pool, high-turbidity water enters the coagulating pool, a nano flocculant is added, the high-turbidity water and the nano flocculant are subjected to a coagulation reaction through rapid stirring of the first stirrer, the flow guide cylinder and the second stirrer are arranged in a flocculation pool, the coagulated high-turbidity water enters the flow guide cylinder and is stirred and lifted out of the flow guide cylinder by the second stirrer, and the flocculated high-turbidity water passes through the rectifying plate and then enters the precipitation zone to be subjected to precipitation reaction and pollution discharge treatment. According to the invention, a nanoscale flocculation technology is utilized, good flocculation conditions are provided,flocculation and precipitation effects are improved, and precipitation time is shortened; and the forms of a mud scraper and a mud discharging pump are improved, the reliability of equipment is improved, and high-turbidity water can be reduced to the conventional water inlet standard under the condition that the area and the depth of a sedimentation tank are not increased.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a high turbidity water treatment device. Background technique [0002] At present, my country is in a state of strictly controlling the ecological red line, and attaches great importance to sewage treatment. In the practical application of sewage treatment, the influent turbidity (SS) of sewage plants in special areas often exceeds the SS influent value specified in the "Water Quality Standards for Discharge of Sewage into Urban Sewers", reaching several thousand milligrams per liter in high cases. Most of them are clay and silt, which have a great impact on the sewage plant. If other conventional primary sedimentation tanks are designed according to the situation beyond the standard, the investment will be high and the area will be large; if they are designed according to the normal pipe collection standard, they will not be able to resist The impact of high load may c...

AI Technical Summary

Problems solved by technology

The disadvantage of this prior art is that the use of siphon mud discharge will increase the risk of air leakage of the sewage pump, resulting in the failure of the sewage pump; the use of baffle flocculation sets too many baffles, occupies a large area, and is purely hydraulic, with low efficiency. , many consumables

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