污泥生态稳定化过程中渗滤液处理效能研究  

Performance of Percolate Treatment in Sewage Sludge Ecological Stabilization

作　　者：孙红杰[1,2] 崔玉波[2] 付立凯 杨少华 

机构地区：[1]东北大学资源与土木工程学院,沈阳110004 [2]大连民族学院环境工程系,大连116600 [3]北京市昌平自来水有限责任公司,北京102200 [4]长春水务(集团)有限责任公司,长春130026

出　　处：《吉林农业大学学报》2011年第3期306-309,323,共5页Journal of Jilin Agricultural University

基　　金：国家自然科学基金项目(50978048)

摘　　要：利用中试规模的人工湿地对污泥进行生态稳定化处理。第一年污泥生态稳定化系统表面形成了稳定的污泥层,第二年运行中期考察由污泥层和填料层构成的"二元结构"对污泥渗滤液的处理性能。对进泥(0 cm)、泥沙界面(50 cm)、植物根系层(70 cm)、填料中间层(90 cm)和出水层(110 cm)进行取样,试验结果表明渗滤液经过污泥层后,化学需氧量(COD)和硝态氮(NOx--N)表现为升高,氨氮(NH4+-N)和总磷(TP)表现为快速降低;在填料层,各污染物浓度呈下降趋势。不同取样点污泥渗滤液COD和氮素的空间变化表明,芦苇区的除污能力略好于香蒲区。A pilot scale sewage sludge ecological stabilization experiment was conducted for sludge dewatering. Reeds （ Phragmites australi ） and cattails （ Typha augustifolia ） were chosen as experiment plants. A layer of dried sludge formed on the surface of the bed in the first year. The experiment was conducted to investigate the performance of sludge layer and matrix layer dual-layer structure for percolate treatment in the second year. The sample ports set at inlet （0 cm depth）, the interface of sludge and sand （50 cm depth）, root layer （70 cm depth）, middle matrix layer （90 cm depth） and effluent layer （110 cm depth）. The results showed that percolate COD and NOx- - N concentrations increased, and NI4＋ - N and TP concentrations decreased quickly after percolate flow through sludge layer. In the matrix layer, the pollutant concentrations showed a trend of decrease. The spatial variation of percolate COD and nitrogen concentrations at different ports demonstrated that the capacity of pollutant removals in reed region was better than that in cattail region.

关 键 词：芦苇床 生态稳定 污泥处理与处置 渗滤液处理 

分 类 号：X703[环境科学与工程—环境工程]