气浮-氧化沟-人工湿地处理制革废水

摘要

介绍了采用气浮—氧化沟—人工湿地工艺处理制革生产废水的工程实例。工程运行结果表明,COD去除率≥97.5%,NH3-N去除率≥90%,出水达到了《污水综合排放标准》（GB8978-1996）中的一级排放标准。该工艺操作简单,运行成本低,运行稳定可靠。%The floatation - oxidation - ditch - constructed wetland process was introduced. The results showed that degradation rate of CODcr was above 95% and degradation rate of NH3 - N was above 90%. The effluent datas can meet the first class requirements of Integrated Wastewater Discharge Standard（ GB8978 -1 996）. The system had the advanta- ges of stability, lower cost and easy operation.