Treatment method and system for purifying permeate from phosphogypsum storage yard
A treatment method and a treatment system technology, applied in the field of chemical sewage treatment, can solve the problems that cannot be fully used, discharged, and the permeate cannot be reused, etc.
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as Figure 1-3 As stated above, the present invention provides a treatment method for purifying the permeate from a phosphogypsum stockpile, using a treatment system for purifying the permeate from a phosphogypsum stockpile for processing, and the system for purifying the permeate from a phosphogypsum stockpile includes sequentially passing through pipelines Connected primary neutralization tank 15, primary settling tank 16, secondary neutralization tank 17, secondary settling tank 18, membrane treatment unit 19 and biochemical treatment unit 20;
[0024] Proceed as follows:
[0025] (1) The phosphogypsum stockyard permeate is introduced into the primary neutralization tank 15, and quicklime or slaked lime is added to the primary neutralization tank (15), and the pH of the neutralization tank is controlled between 9-10, and 20- 50...
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