Treatment method for wastewater of forestry chemical industry

• Main Authors: FANG CHUNLI, LIU FULIN, YAO MENG, HUANG FENGXIANG, HONG YUBIN, LIN GUOCHENG, LAN WEIGUANG
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2017
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; 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 OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a treatment method for wastewater of forestry chemical industry. The method comprises the following steps: pre-treating wastewater of forestry chemical industry with a ceramic membrane and removing majority suspended solids (SS) and petroleum from the wastewater; mixing the pretreated wastewater of forestry chemical industry through a regulating tank; adopting an iron-carbon micro-electrolysis and Fenton oxidation integrated process for treating; treating through a flocculation reaction tank and an inclined tube settling pond, thereby effectively reducing COD content in the wastewater; and adopting an A/O+MBR process for performing biochemical treatment on the effluent of the inclined tube settling pond, thereby deeply removing COD and BOD from the wastewater. The treatment method has the characteristics of short technological process, high water impact load resistance, stable effluent quality, and the like. 本发明公开了种林化生产废水的处理方法，包括林化生产废水经陶瓷膜预处理，去除废水中大部分悬浮物SS、石油类；将预处理后的林化生产废水经调节池混合；采用铁碳微电