复合型人工湿地在城镇污水处理厂尾水提标中的设计与应用  

作　　者：何凡 刘军 丁宏云 林宇迪 郝智健 王达影 贾洪柏[3] 

机构地区：[1]浙江国千环境技术发展有限公司,浙江湖州313300 [2]浙江国阡环境与节能工程研究院,浙江湖州313300 [3]东北林业大学,黑龙江哈尔滨150000

出　　处：《环境保护与循环经济》2023年第9期11-15,共5页environmental protection and circular economy

摘　　要：城镇污水处理厂尾水作为河道的稳定水源,其排放水质对地表水环境有着一定的冲击。以国控断面2 km内的某城镇污水处理厂为例,采用复合型人工湿地,即塘—床—表的组合工艺对尾水进行深度处理。工程竣工验收后稳定运行,对其进出水指标进行连续监测,结果显示:尾水经复合型人工湿地处理后出水水质稳定达到GB 3838—2002《地表水环境质量标准》Ⅲ类水标准;湿地系统对水质的净化呈现季节性变化,这是湿地自身的特性所决定的。实践证明,尾水经处理达到Ⅲ类水标准后排入河道,减小了补给水源对地表水的冲击,并满足国控断面水质要求;湿地在景观设计的加持下,具有较高的美观效果与实用价值。The tail water of urban sewage treatment plant is a stable source of river,and its quality conditions have a certain impact on the surface water environment.Taking an urban sewage treatment plant within 2 km of the state controlled section as an example,a compound constructed wetland,that is,the combined process of pond-bed-table,was used to conduct in-depth treatment of tail water.Stable operation after the completion and acceptance of the project,continuous monitoring of the inlet and outlet water index,the results show that the effluent quality of the tailing water after the treatment of composite constructed wetland reaches the"Surface water Environmental Quality Standard"(GB 3838-2002)Class III water standard;the water purification of wetland system presents seasonal changes,which is determined by the characteristics of wetland itself.The practice shows that the tail water is treated to meet the class III water standard and then enters the river channel,which reduces the impact of the recharge source on the surface water and meets the water quality requirements of the state controlled section.At the same time,wetland has high aesthetic and practical value under the support of landscape design.

关 键 词：污水处理厂 复合型人工湿地 深度处理 多级稳定塘 

分 类 号：X703.1[环境科学与工程—环境工程]