寒冷地区人工湿地成套技术的工程实践

Application Practices of Technology Packages in Constructed Wetland in Cold region

针对北方寒冷地区冬季低温的气候特点,简要分析了植物覆盖法、冰雪覆盖法等人工湿地冬季保温措施的优缺点,重点介绍了"功能性生物强化产品+液位调节设备+15 cm冰层、15 cm空气"组合保温措施。对人工湿地工程冬季运行进行了连续监测,出水COD浓度达Ⅰ级A标准,NH3-N、TP、TN浓度达Ⅰ级B标准,北方寒冷地区人工湿地冬季可稳定运行。

Considering the climatic characteristics of the low temperature in winter in the northern cold regions in China,the advantages and disadvantages of winter insulation measures for artificial wetlands such as plant coveringand snow covering are briefly analyzed,with a focus on the combined insulation measure of"functional bio-fortification products+liquid level adjustment equipment+5 cm ice layer,15 cm air".Winter operation of the constructed wetland has been continuously monitored.The COD concentration of the effluent has reached A of class I standards,and the concentration of NH3-N,TP,and TN has reached B of class i standards.The constructed wetland in the northern cold regions can be stably operated in winter.