研究报告
田兆龙,汪晓军,黄志聪.间歇式曝气生物滤池对焚烧垃圾渗滤液深度脱氮的研究[J].环境科学学报,2013,33(5):1244-1248
间歇式曝气生物滤池对焚烧垃圾渗滤液深度脱氮的研究
- Nitrogen removal for waste incineration leachate by intermittent aerated biological filter
- 基金项目：国家自然科学基金(No.51078149)
- 作者
- 单位
- 田兆龙
- 华南理工大学环境科学与工程学院, 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006
- 汪晓军
- 华南理工大学环境科学与工程学院, 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006
- 黄志聪
- 华南理工大学环境科学与工程学院, 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006
- 摘要：为了提高焚烧垃圾渗滤液深度处理的脱氮效率,构建并启动了间歇式曝气生物滤池(IABF).在曝气阶段停止进水、停曝阶段进水的运行方式下,考察了曝气停曝时间比、运行周期、水力停留时间、碳氮比和气水比对反应器脱氮效率的影响.结果表明,在曝气停曝时间比为1:1,运行周期为1 h,水力停留时间8 h,COD/TN为4:1,气水比5:1的条件下,IABF取得最佳脱氮效率,平均出水TN可达到19.39 mg·L-1,NH4+-N为9.48 mg·L-1.TN和NH4+-N的平均去除率分别为87.5%和84.1%,出水水质达到《生活垃圾填埋场污染控制标准(GB16889-2008)》.
- Abstract：An intermittent aerated biological filter (IABF) was designed and set up to improve the removal of nitrogen from waste incineration leachate. The influent procedure is turned on in the interruption stage while turned off in the aeration stage. By adopting this operation model, the effects of aeration/interruption ratio, cycle of operation, HRT, COD/TN and air/water ratio on nitrogen removal in the reactor were investigated. The maximum nitrogen removal rate was obtained under this follow conditions: aeration/interruption ratio of 1:1, operation cycle of 1h, HRT of 8 h, COD/TN of 4:1, and air/water ratio of 5:1. The TN and NH4+-N concentration of effluent were 19.39 mg·L-1 and 9.48 mg·L-1 with 87.5% and 84.1% removal rate, respectively. The effluent quality reached the criteria specified in the Control Standard of Pollutants for Municipal Solid Waste Landfill (GB16889-2008).
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