Treatment process for acrylic fiber waste water

• Main Authors: LI HAIBO, LIU CHENMING, SHENG YUXING, LI QINZHI, LIU YALI
• Format: Patent
• Language: Chinese; English
• Published: 19.11.2014
• Subjects: CHEMISTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a treatment process for acrylic fiber waste water. The acrylic fiber waste water is pretreated and then is subjected to first-set electrodialysis separation to obtain organic waste water with low salt content and high-salinity concentrated water containing organic matters with low concentration; the organic waste water with the low salt content is subjected to advanced oxidation treatment to improve the biodegradability, and then is subjected to A/O biological treatment to reach the standard; the high-salinity concentrated water containing the organic matters with the low concentration is subjected to reverse osmosis desalination to obtain purified water and reverse osmosis concentrated water; the purified water is used for production; the reverse osmosis concentrated water is subjected to second-set electrodialysis concentration to produce water. According to the process method provided by the invention, on the basis of an advanced oxidation technology and a biological treatment techn