蒸氨_氨吹脱两级工艺处理高浓度氨氮废水_刘华

蒸氨_氨吹脱两级工艺处理高浓度氨氮废水_刘华书蒸氨/氨吹脱两级工艺处理高浓度氨氮废水刘华，李静，孙丽娜，陈锡剑(天津市环境保护科学研究院，天津300191)摘要:根据高氨氮废水的特点，提出了蒸氨/氨吹脱两级处理工艺，出水水质达到天津市《污水综合排放标准》(DB12/356—2008)的三级标准，有效地削减了污染物排放量。介绍了工艺流程、除氨机理、工艺指标、氨氮去除率的影响因素及主要设备，蒸氨可回收氨水，实现了高氨氮废水的综合治理与资源回收利用。关键词:氨氮废水;蒸氨;氨吹脱中图分类号:X703．1文献标识码:C文章编号:1000－4602(2013)20－0096－04TreatmentofHighConcentrationAmmoniaNitrogenWastewaterbyDistillationandStrippingLIUHua，LIJing，SUNLi-na，CHENXi-jian(TianjinAcademyofEnvironmentalSciences，Tianjin300191，China)Abstract:Basedonthehighconcentrationammonianitrogenwastewaterfeatures，atreatmenttechnologyprocessincludingammoniadistillationandammoniastrippingwasproposed．TheeffluentcouldmeetthethirdlevelcriteriaspecifiedinIntegratedWastewaterDischargeStandard(DB12/356－2008)ofTianjinCity．Thepollutantdischargewasreducedeffectively．Thetreatmentprocess，nitrogenremovalmechanism，processindicators，affectingfactorsforammonianitrogenremovalandmajorequip-mentwereelaborated．Ammoniawaterwasrecoveredbydistillation，thusachievingcomprehensivetreat-mentofhighconce