Treatment method for dyeing wastewater of natural dye
A technology of natural dyes and dyeing wastewater, which is applied in the field of textile printing and dyeing, can solve the problems of high cost, low recycling rate, and increase the investment of high-level talents, and achieve the effect of low cost and short processing time
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Embodiment 1
[0040] A method for treating natural dyestuff wastewater, including the following steps:
[0041] A. Introduce natural dyestuff dyeing wastewater into a stirred tank, add biomass fiber to the stirred tank, stir at a high speed of 5500rpm for 6 minutes, and filter to obtain sediment and waste water;
[0042] B. Introduce the waste water in the stirred tank into the filter tank, add flocculant to the waste water, filter after the sewage is flocculated, filter out the suspended matter in it, and obtain the sediment, and the remaining colored fine suspended matter and dissolved matter;
[0043] C. The treated water in the filter tank is passed into the activated carbon adsorption system;
[0044] D. Reuse the water treated by the activated carbon adsorption system in the printing and dyeing process;
[0045] The pulverized product of natural fiber leftovers is a pulverized product of bamboo fiber leftovers;
[0046] The flocculant is aluminum sulfate;
[0047] The method of dyeing with natura...
Embodiment 2
[0062] A method for treating natural dyestuff wastewater, including the following steps:
[0063] A. Introduce natural dyestuff dyeing wastewater into a stirred tank, add biomass fiber to the stirred tank, stir at high speed at 5000 rpm for 5 minutes, and filter to obtain sediment and waste water;
[0064] B. Introduce the waste water in the stirred tank into the filter tank, add flocculant to the waste water, filter after the sewage is flocculated, filter out the suspended matter in it, and obtain the sediment, and the remaining colored fine suspended matter and dissolved matter;
[0065] C. The treated water in the filter tank is passed into the activated carbon adsorption system;
[0066] D. Reuse the water treated by the activated carbon adsorption system in the printing and dyeing process;
[0067] The pulverized material of natural fiber leftovers is a pulverized material of bamboo fiber leftovers;
[0068] The flocculant is aluminum sulfate;
[0069] The method of dyeing with natur...
Embodiment 3
[0084] A method for treating natural dyestuff wastewater, including the following steps:
[0085] A. Introduce natural dyestuff dyeing wastewater into a stirred tank, add biomass fiber to the stirred tank, stir at 6000 rpm for 8 minutes, and filter to obtain sediment and waste water;
[0086] B. Introduce the waste water in the stirred tank into the filter tank, add flocculant to the waste water, filter after the sewage is flocculated, filter out the suspended matter in it, and obtain the sediment, and the remaining colored fine suspended matter and dissolved matter;
[0087] C. The treated water in the filter tank is passed into the activated carbon adsorption system;
[0088] D. Reuse the water treated by the activated carbon adsorption system in the printing and dyeing process;
[0089] The pulverized material of natural fiber leftovers is a pulverized material of bamboo fiber leftovers;
[0090] The flocculant is aluminum sulfate;
[0091] The method of dyeing with natural dyes is:
[...
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