An environment-friendly printing and dyeing wastewater treatment process and treatment device

Abstract

The invention discloses an environment-friendly printing and dyeing wastewater treatment process. The printing and dyeing wastewater is introduced into a regulating tank, an acidic solution is poured into the regulating tank, and after being fully mixed by a stirring rod, an alkaline solution is poured into the regulating tank for secondary stirring. , so that the pH value of the printing and dyeing sewage is stable between 6-9, one-stage filtration, the printing and dyeing sewage is poured into the water collection tank of the treatment device, and a flocculant is added at the same time to make the suspended solids in the printing and dyeing sewage coagulate, and the collection is used The water distribution tank plate in the water tank separates the suspended solids in the printing and dyeing sewage through the filter tank, so that the suspended solids remain in the water distribution tank plate, and the sewage falls into the bottom of the water collection tank, and after being filtered by the first filter plate and the second filter plate, Discharged from the water collection tank; an environmentally friendly printing and dyeing wastewater treatment process and treatment device of the present invention increases the scope of application of the treatment device, makes its fixed diameter adjustable, improves its treatment efficiency, makes it have a combined fixed structure, and brings more Good experience.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, specifically relates to sewage treatment equipment, and more specifically relates to an environment-friendly printing and dyeing wastewater treatment process and treatment device. Background technique [0002] Textile printing and dyeing wastewater has the characteristics of large water volume, high content of organic pollutants, high alkalinity, and large changes in water quality. It is one of the most difficult industrial wastewater to treat. Impurities, sand substances, inorganic salts, etc., the main methods used for the treatment of printing and dyeing wastewater include physical and chemical methods, biochemical methods, chemical methods, and a combination of several processes. The pretreatment in wastewater treatment is mainly to improve the quality of wastewater. Remove suspended solids and impurities that can be directly settled, adjust the quality and quantity of wastewater, re...

AI Technical Summary

Problems solved by technology

[0003] The existing printing and dyeing wastewater treatment device has certain disadvantages in the process of use. The traditional printing and dyeing wastewater treatment device flows through the water itself to filter and discharge the water body. Affected by the flow rate of the water body, the treatment of the printing and dyeing wastewater treatment device is reduced to a certain extent. efficiency, and the traditional printing and dyeing wastewater treatment device adopts a threaded butt joint fixed structure, which affects the docking diameter and docking speed of the printing and dyeing wastewater treatment device to a certain extent, which increases the difficulty of installation of the printing and dyeing wastewater treatment device. The traditional printing and dyeing wastewater treatment device adopts an integrated fixed The structure increases the difficulty of installation of the printing and dyeing wastewater treatment device, which is not convenient for users to maintain and operate, and brings certain adverse effects to users

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