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天津地区表流人工湿地冬季运行工艺研究
引用本文:秦晓丹,孙贻超,李莉,邵晓龙,于丹,刘琼琼,刘红磊,韩琳.天津地区表流人工湿地冬季运行工艺研究[J].安徽农业科学,2013,41(15):6841-6843.
作者姓名:秦晓丹  孙贻超  李莉  邵晓龙  于丹  刘琼琼  刘红磊  韩琳
作者单位:1. 天津泰达威立雅水务有限公司,天津,300457
2. 天津市环境保护科学研究院,天津,300191
3. 天津师范大学,天津,300384
基金项目:水利部公益性行业科研专项
摘    要:目的]研究天津地区表流人工湿地冬季运行工艺。方法]针对天津的气候特点,以冰下运行的方式,开展天津地区表流湿地冬季运行试验,研究自由表面流人工湿地北方冬季运行工艺参数。结果]虽然水质净化效果差于其他温暖季节(平均降低约20%),但是在天津地区表流湿地采取冰下运行的方式是可行的。北方表流人工湿地冬季冰下运行时应将出水口地势降低,防止出水口被完全冰冻,运行水深不宜50~60 cm,可以在回流的基础上适当加大水力负荷(水力停留时间以4 d为宜),以维持水土界面不会冻结,并尽可能加大取水深度,以提高系统水温。结论]该研究可为表流人工湿地在我国北方的推广应用提供借鉴。

关 键 词:表流人工湿地  运行工艺  冬季  天津地区

Study on Winter Operation Process of the Surface Flow Constructed Wetland in Tianjin Area
Institution:QIN Xiao-dan et al(TEDA Veolia Water Co.,Ltd in Tianjin,Tianjin 300457)
Abstract:Objective] The research aimed to study winter operation process of the surface flow constructed wetland in Tianjin area.Method] In view of climate characteristics in Tianjin,by the way of running under the ice,winter operation experiment of the surface flow constructed wetland in Tianjin was conducted,with the expectation to get some useful process parameters to run such systems in North China in winter.Result] Although water purification effect in winter by surface flow constructed wetland was worse than that in other seasons(average reduction of about 20%),surface flow constructed wetland running under the ice was feasible in Tianjin area.When surface flow constructed wetland in North China ran under ice in winter,it was suggested that the outlet must be located in a low position to prevent to be completely frozen,and running water depth should not be less than 50-60 cm.The hydraulic load could be raised on the basis of reflux,and hydraulic retention time should be maintained less than 4 d to keep water-soil interface not freeze.Sampling water depth should be increased as much as possible to improve temperature in system.Conclusion] The research could provide reference for promotion and application of the surface flow constructed wetland in North China.
Keywords:Surface flow constructed wetland  Operation process  Winter  Tianjin area
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