Reusing treatment method for printing and dyeing wastewater
A technology for printing and dyeing wastewater and treatment methods, which is applied in textile industrial wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., and can solve the problems of increased difficulty in industrial wastewater treatment, membrane fouling and rapid flux decline, Short service life and other issues, to achieve the effect of simple structure, increased specific surface area, and low infrastructure cost
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Example Embodiment
[0028] Example 1
[0029] Such as figure 1 It is shown that the method of the present invention can ensure that the treated effluent reaches the standard stably, and has been successfully operated on multiple engineering examples. The specific process is as follows:
[0030] (A) After the printing and dyeing wastewater passes through the grille, part of the suspended matter is removed and then enters the adjustment tank. After the adjustment tank enters the coagulation sedimentation tank, the specific operation is: put flocculants and coagulants into the printing and dyeing wastewater, and pass through the mixer in the reaction zone. Stop the stirring effect, and control the stirring strength and stirring time of the mixer, fully mix the flocculant, coagulant and wastewater, and under the function of the flocculant and coagulant, the adsorption of the flocculant and the coagulant, the net capture and the bridge frame, the pollutants in the wastewater The flocs begin to condense w...
Example Embodiment
[0036] Example 2
[0037] On the basis of Example 1, the operating parameters in each operation are changed as follows:
[0038] (A) After the printing and dyeing wastewater passes through the grille, part of the suspended matter is removed and then enters the adjustment tank. After the adjustment tank enters the coagulation sedimentation tank, the specific operation is: put flocculants and coagulants into the printing and dyeing wastewater, and pass through the mixer in the reaction zone. Stop the stirring effect, and control the stirring strength and stirring time of the mixer, fully mix the flocculant, coagulant and wastewater, and under the function of the flocculant and coagulant, the adsorption of the flocculant and the coagulant, the net capture and the bridge frame, the pollutants in the wastewater The flocs begin to condense with the agent, and finally form flocs, and then the flocs sink to the bottom of the tank by their own gravity in the separation zone, and are dischar...
Example Embodiment
[0044] Example 3
[0045] On the basis of Example 1, the operating parameters in each operation are changed as follows:
[0046] (A) After the printing and dyeing wastewater passes through the grille, part of the suspended matter is removed and then enters the adjustment tank. After the adjustment tank enters the coagulation sedimentation tank, the specific operation is: put flocculants and coagulants into the printing and dyeing wastewater, and pass through the mixer in the reaction zone. Stop the stirring effect, and control the stirring strength and stirring time of the mixer, fully mix the flocculant, coagulant and wastewater, and under the function of the flocculant and coagulant, the adsorption of the flocculant and the coagulant, the net capture and the bridge frame, the pollutants in the wastewater The flocs begin to condense with the agent, and finally form flocs, and then the flocs sink to the bottom of the tank by their own gravity in the separation zone, and are dischar...
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