Terephthalic acid production waste water disposal method
The invention provides a treatment method for waste water in phthalic acid production, which comprises ultrafiltering, reverse osmosis filtering, and ion exchanging. Wherein, the seston in waste water can be removed almost fully; metal ion in the water, such as Co and Mn, and organic, such as p-carb...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention provides a treatment method for waste water in phthalic acid production, which comprises ultrafiltering, reverse osmosis filtering, and ion exchanging. Wherein, the seston in waste water can be removed almost fully; metal ion in the water, such as Co and Mn, and organic, such as p-carboxybenzaldehyde and benzoic acid, both can be removed more than 99%; the out water comes to the quality requiry for desalinization water. This method can realize waste water recycle with more than 70% utility. |
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