System and method for treating wastewater containing sodium chloride
A treatment system and wastewater treatment technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, heating water/sewage treatment, etc. Cost, mature technology, and the effect of zero discharge of wastewater
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[0016] The present invention provides a treatment system for wastewater containing sodium chloride, which includes a crystallization centrifugal separation system, the crystallization centrifugal separation system includes a cyclone 7, a thickener 8 and a centrifuge 9 connected in sequence, and the cyclone 7 It is connected with a three-effect evaporator for concentrating waste water containing sodium chloride. The three-effect evaporator includes a first-effect evaporator, a second-effect evaporator, and a third-effect evaporator connected in sequence. The first-effect evaporator includes a first-effect heater 1 and a first-effect evaporator 2, and the second-effect evaporator includes Two-effect heater 3, two-effect evaporator 4, third-effect evaporator includes three-effect heater 5, three-effect evaporator 6, one-effect heater 1 and one-effect evaporator 2, two-effect heater 3 and two-effect The evaporator 4, the three-effect heater 5 and the three-effect evaporator 6 are ...
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