摘要
针对垃圾渗滤液中的氨氮对后续生物处理的严重抑制问题,利用渗滤液废水作为研究对象,采用吹脱法对氨氮进行前期去除。本研究主要通过实验研究生石灰施加量、吹脱时间和气液比对氨氮吹脱效率的影响,确定最佳生石灰投加量。结果表明,生石灰投加量在12.37g/L时,pH值达到11.5;并在吹脱过程中保持气液比为125倍和9h的吹脱时间作为最佳操作条件。
In view of severe suppression problem caused by ammonia nitrogen for subsequent biological treatment of landfill leachate, using the leachate wastewater as the object of study, the method of air stripping was taken to remove ammonia-nitrogen ahead. The effects of the amount of lime applied, stripping time and the gas-liquid ratio on the efficiency of ammonia stripping were investigated to determine the optimum dosage of lime. The results showed that pH value reached 11.5 when lime dosage was 12.37 g/L, the gas-liquid ratio and stripping time were 125 times and 9 hours, respectively, in the process of stripping, the air stripping efficiency of ammonia achieved its best effect.
出处
《井冈山大学学报（自然科学版）》
2012年第1期44-46,共3页
Journal of Jinggangshan University (Natural Science)
基金
广西科技厅科技攻关项目(桂科攻10124002-3)
广西环境工程与保护评价重点实验室主任基金项目(桂科能0701z010)
广西高校人才小高地建设"环境工程"创新团队资助计划项目(桂教人[2007]71)
关键词
氨氮
吹脱法
垃圾渗滤液
吹脱效果
ammonia
air stripping
landfill leachate
air stripping efficiency
