Advanced treatment method for printing and dyeing wastewater
A technology for advanced treatment of printing and dyeing wastewater, applied in water/sewage multi-stage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. Achieve the effect of low operating cost, small footprint and no secondary pollution
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[0019] Example 1:
[0020] (1) Preparation of coal filler: The composition of the filler is anthracite, and pulverized coal with a particle size of less than 2mm. During the preparation of the filler, the anthracite is crushed first, and then the pulverized coal of the required particle size is obtained by using a drum screen with a 2mm aperture.
[0021] (2) Static adsorption: Fill the filler into the adsorption bed, and the ratio of filler to waste water is preferably 1:2.5 to 1:5.
[0022] (3) Process flow: such as figure 1 As shown, the tail water after the biochemical treatment of the printing and dyeing wastewater is homogenized by the adjusting tank and the water quality and quantity, and then pumped into the static adsorption bed by the water pump, statically adsorbed in the reaction bed for 2 hours, and finally discharged through the bottom outlet pipe.
[0023] (4) Process conditions and process parameters: using intermittent operation mode, the tail water after the bioc...
Example Embodiment
[0025] Example 2:
[0026] (1) Preparation of coal filler: The composition of the filler is anthracite, and pulverized coal with a particle size of less than 2mm. During the preparation of the filler, the anthracite is crushed first, and then the pulverized coal of the required particle size is obtained by using a drum screen with a 2mm aperture.
[0027] (2) Static adsorption: Fill the filler into the adsorption bed, and the ratio of filler to waste water is preferably 1:2.5 to 1:5.
[0028] (3) Process flow: such as figure 1 As shown, the tail water after the biochemical treatment of the printing and dyeing wastewater is homogenized by the adjusting tank and the water quality and quantity, and then pumped into the static adsorption bed by the water pump, statically adsorbed in the reaction bed for 2 hours, and finally discharged through the bottom outlet pipe.
[0029] (4) Process conditions and process parameters: using intermittent operation mode, the tail water after the bioc...
Example Embodiment
[0031] Example 3:
[0032] (1) Preparation of coal filler: The composition of the filler is anthracite, and pulverized coal with a particle size of less than 2mm. During the preparation of the filler, the anthracite is crushed first, and then the pulverized coal of the required particle size is obtained by using a drum screen with a 2mm aperture.
[0033] (2) Static adsorption: Fill the filler into the adsorption bed, and the ratio of filler to waste water is preferably 1:2.5 to 1:5.
[0034] (3) Process flow: such as figure 1 As shown, the tail water after the biochemical treatment of the printing and dyeing wastewater is homogenized by the adjusting tank and the water quality and quantity, and then pumped into the static adsorption bed by the water pump, statically adsorbed in the reaction bed for 2 hours, and finally discharged through the bottom outlet pipe.
[0035] (4) Process conditions and process parameters: using intermittent operation mode, the tail water after the bioc...
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