超临界水氧化技术深度处理印染废水及污泥  

Advanced treatment of dyeing wastewater and sludge by supercritical water oxidation

作　　者：张拓[1] 王树众[1] 任萌萌[1] 王来升 孙盼盼[1] 

机构地区：[1]西安交通大学热流科学与工程教育部重点实验室,陕西西安710049

出　　处：《印染》2016年第16期43-45,共3页China Dyeing and Finishing

基　　金：国际高技术研究发展计划(863计划)

摘　　要：采用超临界水氧化法在间歇式反应器中对印染废水及污泥进行处理试验,研究了温度和氧化系数对处理后COD(化学需氧量)的影响。当温度达到550℃,2.0倍氧化系数时,处理后废水和污泥的COD分别为20.9 mg/L和30.7 mg/L,去除率分别达到96.6%和99.9%。在该处理条件下,印染废水和污泥中的酚类和挥发酚的质量浓度均大幅降低,达到GB 8978—1996中对挥发酚的排放标准,且处理后废水及污泥中的重金属锑去除明显,达到GB 30770—2014的排放标准。Supercritical water oxidation （SCWO） is applied to treat wastewater and sludge from dyeing plants in a batch reactor. The influence of temperature and oxidation coefficient on removal of COD is in- vestigated. At temperature 550 ℃ and oxidation coefficient 2.0, the removal efficiency of COD of waste- water and sludge after treatment are 96.6% and 99.9% respectively, the content of the phenols and vola- tile phenols in wastewater and sludge are all greatly reduced and reaching the emission standard of GB 8978-1996, and the content of heavy metaJ antimony in wastewater and sludge can meet the requirement of GB 30770-2014.

关 键 词：印染废水 污泥 超临界水氧化 化学需氧量 酚类 重金属 

分 类 号：X791[环境科学与工程—环境工程]