Multifunctional tubular turbulent flow mixer and process for coagulating industrial wastewater

Abstract

The invention relates to a multifunctional tubular turbulent flow mixer and process for coagulating industrial wastewater. The process comprises the following steps: enabling raw water to enter a water inlet pipe of the multifunctional tubular turbulent flow mixer; adding alkali and a coagulating agent into the water inlet pipe respectively, wherein the alkali is used for adjusting the pH (Potential of Hydrogen) of the wastewater; enabling the wastewater to enter the tubular mixer and sufficiently mixing the wastewater with the added medicaments; adjusting by a valve to realize random switching of six types of operation manners of serial connection, parallel connection, single-tube, multi-tube, forward and backward operation, so as to flexibly carry out industrial wastewater treatment on variable water quality and adjust a subsequent coagulating effect to be optimal; after sufficiently mixing the wastewater with the medicaments through the mixer, adding a coagulant aid; enabling the wastewater to enter a coagulation and sedimentation tank and carrying out further treatment. According to the multifunctional tubular turbulent flow mixer and process provided by the invention, a researched device does not need power equipment, and the investment and operation cost is relatively low.

Description

technical field [0001] The invention relates to the field of industrial wastewater treatment, in particular to a multifunctional tubular turbulent flow mixer and a process for coagulating industrial wastewater. Background technique [0002] Coagulation is a common process for sewage and wastewater treatment, including mixing and flocculation processes. Uniformly dissolving coagulant agents into sewage and wastewater is a key link in coagulation. In sewage and wastewater treatment projects, the mixing methods mainly include mechanical stirring and tubular hydraulic static mixing. Mechanical stirring is a commonly used mixing method in sewage and wastewater treatment projects, but there are major problems of high investment and operating costs. Although the investment and operating costs of tubular hydraulic mixing are low, due to the high concentration of pollutants in sewage and large changes in water quality, the use of tubular hydraulic mixing is likely to cause problems...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a multifunctional tubular turbulent mixer and process for coagulation of industrial wastewater. By setting a special tapered-divergent structure inside the mixer, the traditional tubular mixer is avoided. The built-in orifice plate is easy to block, and the effect of sewage and wastewater treatment is unstable; through different combinations of multiple tubular mixers, you can flexibly choose series, parallel, single-pipe, multi-pipe, forward, etc. according to the water quality during operation. and reverse operation modes, greatly enhancing the adaptability to sewage and wastewater treatment with variable water quality

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