[1]闫飞龙,王怡,王文怀,等.曝气方式对复合人工湿地处理城镇生活污水的影响[J].中国给水排水,2021,37(19):85-90.
　YAN Fei-long,WANG Yi,WANG Wen-huai,et al.Effect of Aeration Mode on Treatment of Urban Domestic Sewage by Hybrid Constructed Wetland[J].China Water & Wastewater,2021,37(19):85-90.
点击复制

曝气方式对复合人工湿地处理城镇生活污水的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第19期 页码: 85-90 栏目: 出版日期: 2021-10-01
Title:
Effect of Aeration Mode on Treatment of Urban Domestic Sewage by Hybrid Constructed Wetland
作者:
闫飞龙1，王怡1，王文怀1，张恒1，寇晓梅2，吴世璋2，邵甜2，牛乐2
(1.西安建筑科技大学环境与市政工程学院，陕西西安710055；2.中国电建集团西北勘测设计研究院有限公司，陕西西安710065)
Author(s):
YAN Fei-long1，WANG Yi1，WANG Wen-huai1，ZHANG Heng1，KOU Xiao-mei2，WU Shi-zhang2，SHAO Tian2，NIU Le2
(1. School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 2. PowerChina Northwest Engineering Corporation Limited, Xi’an 710065, China)
关键词:
复合人工湿地; 城镇生活污水; 连续曝气; 间歇曝气; 高效能区; 水质提升区
Keywords:
hybrid constructed wetland; urban domestic sewage; continuous aeration; intermittent aeration; high-efficiency area; water quality improvement area
摘要:
针对人工湿地直接处理生活污水时存在供氧不足及其导致的对碳、氮污染物去除效果差的问题，通过组合垂直流人工湿地（VFCW）和水平流人工湿地（HFCW）构建了复合人工湿地（HCW），探究了曝气方式对HCW处理实际生活污水效果的影响，并对HCW系统中污染物的净化机理进行了解析。结果表明，当水力负荷为0.094 5 m3/（m2·d）、气水比为6.5 ∶1时，在连续曝气和间歇曝气方式下，HCW均可实现对生活污水的较好处理。与连续曝气相比，间歇曝气更有利于系统中TN的去除，其出水COD、SS、TN和NH4+-N浓度均可稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)中的一级A标准。HCW中污染物沿程变化规律表明，VFCW上部属于复合系统的高效能区，可实现大部分污染物的去除；其余区域作为复合系统的水质提升区，使得污染物得到进一步净化，从而保证了HCW对城镇生活污水的高效稳定处理。
Abstract:
There is a problem of poor carbon and nitrogen removal efficiency caused by insufficient oxygen supply when the domestic sewage is directly treated by the constructed wetland. A hybrid constructed wetland (HCW) was built by combining a vertical-flow constructed wetland (VFCW) and a horizontal-flow constructed wetland (HFCW). Moreover, the effect of aeration mode on the treatment of urban domestic sewage by the HCW was explored, and the purification mechanism of the pollutants in the HCW system was analyzed. When the HLR and gas-water ratio were 0.094 5 m3/(m2·d) and 6.5 ∶1, both the continuous aeration and intermittent aeration could achieve better removal performances of the domestic sewage in the HCW system. Compared with the continuous aeration, the intermittent aeration was more conducive to TN removal in the HCW system, and COD, SS, TN and NH4+-N in the effluent could stably reach the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002). The variations in pollutant concentrations along the HCW system indicated that the upper part of the VFCW belonged to the high-efficiency area of the HCW system and could remove most of the pollutants in the domestic sewage. The other areas of the HCW system served as the water quality improvement areas, which further purified the pollutants in the system, thus ensuring the efficient and stable treatment of the urban domestic sewage by the HCW.

相似文献/References:

[1]寇晓梅,吴世璋,邵甜,等.复合人工湿地处理生活污水的冬季启动和春季运行[J].中国给水排水,2021,37(17):69.
　KOU Xiao-mei,WU Shi-zhang,SHAO Tian,et al.Winter Start-up and Spring Operation of Hybrid Constructed Wetland for Domestic Sewage Treatment[J].China Water & Wastewater,2021,37(19):69.
[2]赫俊国,曾忆雯,刘新平,等.NZVI/AC基好氧颗粒污泥快速培养及污水处理效能[J].中国给水排水,2023,39(7):8.
　HEJun-guo,ZENGYi-wen,LIUXin-ping,et al.Rapid Cultivation of NZVI/AC-based Aerobic Granular Sludge and Its Wastewater Treatment Performance[J].China Water & Wastewater,2023,39(19):8.
[3]程涵宇,刘汉湖,蒋雪阳,等.复合人工湿地系统对二级出水中汞的去除效果[J].中国给水排水,2023,39(7):120.
　CHENGHan-yu,LIUHan-hu,JIANGXue-yang,et al.Performance of Hybrid Constructed Wetland for Mercury Removal in Effluent from the Secondary Biological Treatment System[J].China Water & Wastewater,2023,39(19):120.

更新日期/Last Update: 2021-10-01