铁碳+Fenton氧化法应用于制革废水的工程实例

梁兵兵^①  沈伟祥  冯晓西  王建平

（上海闵欣环保设备工程公司  54466508）

摘  要： 目前，制革废水的传统处理工艺以气浮或混凝沉降结合生物处理为主，处理出水可以达到GB31/199-1997《上海市污水综合排放标准》中的三级标准，但是在排放标准更高的地区，皮革废水的传统处理工艺则无法实现达标排放。本项目处理废水为上海某制革厂的废水，采用铁碳法处理后投加双氧水进行fenton氧化法作为预处理工艺；A/O工艺和SBR法作为生物处理工艺，最终出水稳定在COD_Cr＝85mg/L、NH₃-N＝12mg/L左右，达到《上海市污水综合排放标准》（DB31/199-1997）二级标准。

关键词： 制革废水   铁碳   Fenton氧化法    A/O工艺   SBR

Abstract：The tannery wastewater is traditionally processed by flotation or flocculants, together with biological treatment. The water after treatment could match with the secondary emission standard in GB31/199-1997. But it is not available under more strict standards. The project aims at tannery wastewater in shanghai. Fe/C methed is used in the tannery wastewater as the pretreating, followed with Fenton reaction by H₂O₂. Oxidation, A/O and SBR technical are introduced as the biological parts. Finally, both of COD and NH₃-N can meet with the emission standard in DB31/199-1997

Key Word：tannery wastewater    Fe/C methed    Fenton Oxidation

           A/O process          SBR