不同组合类型人工湿地污水处理效果比较  

TREATMENT PERFORMANCE OF DIFFERENT COMBINATIONS OF CONSTRUCTED WETLANDS SYSTEMS

作　　者：柳明慧[1] 宋玉丽[2] 吕涛[1] 吴树彪[1] 鞠鑫鑫[2] 常永江[3] 陈理[1] 董仁杰[1] 

机构地区：[1]中国农业大学工学院,北京100083 [2]中国农业大学水利与土木工程学院,北京100083 [3]中国农业大学农学与生物技术学院,北京100083

出　　处：《环境工程》2014年第2期25-29,共5页Environmental Engineering

基　　金：国家自然科学基金项目(51308536);教育部博士点基金(2013008120018)

摘　　要：构建室内潮汐流-水平潜流和水平潜流-潮汐流2种不同组合人工湿地系统,探讨不同组合人工湿地系统对污染物的去除效果。研究结果表明:1)当进水总有机碳平均质量浓度为75.9 mg/L,氨氮平均质量浓度为99.4 mg/L时,潮汐流-水平潜流和水平潜流-潮汐流人工湿地系统对总有机碳的去除率分别为90.2%和91.3%,氨氮平均去除率分别为19.5%和39.2%,总氮平均去除率分别为10.3%和30.5%。水平潜流-潮汐流人工湿地系统对氮素表现出较好的去除能力。2)在进水氨氮浓度不变,降低潮汐流-水平潜流组合人工湿地进水的总有机碳浓度至23.1 mg/L,同时,升高水平潜流-潮汐流进水的总有机碳浓度至105.0 mg/L时,2组湿地系统对氮素的平均去除率均得到大幅度提高,氨氮去除率分别为78.9%和80.6%,总氮平均去除率也分别升高到45.4%和51.8%。Tidal flow-horizontal flow system and horizontal flow-tidal flow system were set up to study the removing effects of pollutants by different combinations of constructed wetland systems. The results showed that at the same influent concentration, the average total organic carbon removal rate was 90. 2% and 91.3% , the average removal of NH4＋-N were 19.5% and 39.2% , and the average total nitrogen removal rate was 10. 5% and 30. 5% in tidal flow-horizontal flow system and horizontal flow-tidal flow system, respectively. However, nitrogen removal rate was highly improved in two systems when reducing organic carbon of influent in tidal flow-horizontal flow system and increasing it in horizontal flow-tidal flow system. The average NH4＋ -N removal rate was 78.9% and 80. 6% , and total nitrogen removal rate was 45.4% and 51.8% in tidal flow-horizontal flow system and horizontal flow-tidal flow system, respectively.

关 键 词：潮汐流 水平潜流 组合人工湿地 处理效果 

分 类 号：X703[环境科学与工程—环境工程]