摘要
以某钢铁厂烧结工序脱硫脱硝制酸产生的高NH4+-N含量废水为处理对象,采用疏水性的聚丙烯(PP)中空纤维气态膜进行了废水中NH_(4)^(+)-N的脱除和回收工业化应用实验。结果表明,通过良好设计和过程控制,出水NH_(4)^(+)-N的质量浓度均低于15 mg/L,最低为1.2 mg/L,满足GB 13456-2012排放限值要求,且运行稳定。副产的硫酸铵品质稳定,质量分数在10%~18%。
Hydrophobic polypropylene(PP) hollow fiber gaseous membrane was used to carry out the industrialized application experiment on the removal and recovery of NH4+-N in wastewater,regarding the high concentration NH_(4)^(+)-N wastewater generated by the flue gas desulfurization and denitrification system in sintering process of a certain steel plant as the research object.The results showed that,though good design and process control,the mass concentration of NH_(4)^(+)-N in effluent was below 15 mg/L,te lowest value reached 1.2 mg/L,which met the emission limit requirements of GB13456-2012 and the operation was stable.The quality of by-product ammonium sulfate was stable,with a mass fraction of 10% to 18%.
作者
杨本涛
赵利明
彭杰
刘义
魏进超
YANG Bentao;ZHAO Liming;PENG Jie;LIU Yi;WEI Jinchao(Zhongye Changtian International Engineering Co.,Ltd,Changsha 410205,China;National Sintering and Pelletizing Equipment System Engineering Research Center,Changsha 410205,China;Ironmaking Plant,Baosteel Zhanjiang Iron and Steel Co.,Ltd,Zhanjiang 524072,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2021年第4期125-127,132,共4页
Technology of Water Treatment
基金
湖南省重点研发计划(2018SK2026)
湖南省自然科学基金(2018JJ3894)。
关键词
气态膜
硫脱硝制酸废水
氨氮
工业化应用
gaseous membrane
desulfurization
denitrification and acid production wastewater
ammonia nitrogen
industrialized application
