吹脱-吸附工艺处理钒冶炼高氨氮废水的工程实践  

Engineering Practice on the Treatment of High-concentration Ammonianitrogen Wastewater from Vanadium Smelting Using Air Stripping Combined with Adsorption Process

作　　者：胡元娟[1] 周康根[1] 彭佳乐[1] 汪海涛[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《安全与环境工程》2012年第4期42-44,48,共4页Safety and Environmental Engineering

基　　金：国家自然科学基金项目(51174238)

摘　　要：详细介绍了采用常温循环吹脱-移动床吸附工艺处理湖南某钒厂V2O5生产过程排放的高盐高浓度氨氮废水的工艺流程,分析了氨氮去除率的影响因素,并提出了最佳工艺条件。工程实际应用表明:吹脱-吸附工艺对高浓度氨氮废水(Na+浓度为50g/L、NH3-N浓度为13 000mg/L)具有很好的处理效果,出水氨氮浓度低于15mg/L,可达到《污水综合排放标准》(GB8978—1996)的一级排放标准,且高纯度氯化铵的回收利用也大大降低了工程成本。Air stripping combined with adsorption process is used to treat the wastewater containing high-concentration salt and ammonia-nitrogen from vanadium industry.The technological process is introduced in detail,the influencing factors of ammonia-nitrogen removal efficiency are analyzed and the optimum technological conditions are proposed.Engineering practice shows that the system has excellent performance in ammonia-nitrogen wastewater treatment.The effluent ammonia concentration is less than 15mg/L,which reaches Grade I level of the national standard（GB8978-1996）,in the treatment of the wastewater containing 50 g/L Na＋ and 13000mg/L NH3-N.

关 键 词：高浓度氨氮废水 吹脱-吸附工艺 工程应用 

分 类 号：X703.1[环境科学与工程—环境工程]