Method and system for treating wastewater generated during production of high-purity ultrafine modified calcium carbonate
A technology for the production of wastewater and treatment methods, applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve unfavorable wastewater treatment and reuse, production and quality impact, waste of water resources and other issues, to achieve the effect of increasing production added value, high volume load, and good oxygenation conditions
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[0036] This embodiment relates to the treatment of high-purity ultrafine modified calcium carbonate production wastewater.
[0037] The high-purity ultra-fine modified calcium carbonate production wastewater is used in such figure 1 Processing in the processing system shown:
[0038] Along the flow of wastewater, the treatment system includes successively connected adjustment tanks, high-efficiency coagulation sedimentation tanks, hydrolysis acidification tanks, biological contact oxidation tanks and biochemical sedimentation tanks, downstream of the biochemical sedimentation tanks, passing through the first intermediate tank (ie, intermediate tank 1) Connected to the high-efficiency filtration device, then connected to the ultrafiltration device through the second intermediate pool (ie, the intermediate pool 2), and finally connected to the reuse pool through the reverse osmosis device; the reverse osmosis device is also connected to the multi-effect evaporation de...
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