Dye House Water Treatment
Dye House Water Treatment
(OP)
Which is the most effective Dye House water treatment process. Is there any solution to total color removal and can the water be re-usable for dye house.
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RE: Dye House Water Treatment
RE: Dye House Water Treatment
http://www.epa.gov/Region9/cross_pr/merit/osmosis.pdf
Besides ozonation, which I agree is good for this application, you can use electrocoagulation to break down the dye molecules and get good settling of metals in a clarifier or settling tank. Supplemental filtration,e.g., RO, would be beneficial to remove dissolved byproducts, etc. I have tested a number of organic and organometallic dyes, and only had problems with one highly stable black dye from Clariant (the same dye requires several hours treatment with hypochlorite for traditional breakdown).
Electrocoagulation has the advantage that it doesn’t generate Cr+6 as some oxidation processes do when breaking down Cr-containing dyes. Electrocoagulation will actually oxidize dye and reduce Cr+6 simultaneously.