Iron phosphate wastewater zero discharging treatment device and method

Iron phosphate wastewater zero discharging treatment device and method

  • CN 105,000,635 A
  • Filed: 08/18/2015
  • Published: 10/28/2015
  • Est. Priority Date: 08/18/2015
  • Status: Active Application
First Claim
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1. tertiary iron phosphate wastewater zero discharge treatment unit, is characterized in that comprising tertiary iron phosphate wastewater equalization pond, first-stage reverse osmosis device, the dense water tank of first-stage reverse osmosis, dense water reverse osmosis unit, the reverse osmosis concentrated water tank of dense water, second level reverse osmosis apparatus, two-pass reverse osmosis product water tank and intermediate water tank;

  • Wherein tertiary iron phosphate waste water receives the water-in of tertiary iron phosphate wastewater equalization pond, the water outlet of tertiary iron phosphate wastewater equalization pond connects the water-in of first-stage reverse osmosis device through lift pump, the dense water out of first-stage reverse osmosis device connects the water-in of the dense water tank of first-stage reverse osmosis, and the product water out of first-stage reverse osmosis device connects the water-in of intermediate water tank;

    The water outlet of the dense water tank of first-stage reverse osmosis connects the water-in of dense water reverse osmosis unit by topping-up pump, the product water out of dense water reverse osmosis unit also connects the water-in of intermediate water tank, the dense water out of dense water reverse osmosis unit connects the water-in of the reverse osmosis concentrated water tank of dense water, and the water outlet of the reverse osmosis concentrated water tank of dense water is as the raw materials recovery of composite fertilizer;

    The water outlet of intermediate water tank connects the water-in of second level reverse osmosis apparatus by line pump, the product water out of second level reverse osmosis apparatus connects the water-in that two-pass reverse osmosis produces water tank, two-pass reverse osmosis produces the water outlet of water tank by pure water pump loopback production system, and the dense water out of second level reverse osmosis apparatus is connected to the refluxing opening of tertiary iron phosphate wastewater equalization pond.

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