• 关键词：人工湿地  NH₄⁺-N  COD  DOM  曝气

• 基金项目：国家自然科学基金项目（No.51768013，51638006）；广西研究生教育创新计划项目

• 高续涛
• 桂林理工大学, 广西环境污染控制理论与技术重点实验室, 桂林 541004

• 李振灵
• 桂林理工大学, 广西环境污染控制理论与技术重点实验室, 桂林 541004

• 丁彦礼
• 桂林理工大学, 广西岩溶地区水污染控制与用水安全保障协同创新中心, 桂林 541004

• 王敦球
• 桂林理工大学, 广西岩溶地区水污染控制与用水安全保障协同创新中心, 桂林 541004

• 王荣华
• 广西恒晟水环境治理有限公司, 桂林 541004

• 白少元
• 桂林理工大学, 广西岩溶地区水污染控制与用水安全保障协同创新中心, 桂林 541004

• 摘要：为研究溶解性有机物在生态修复系统中的降解与残留，构建石英砂、焦炭及曝气焦炭系统的人工湿地，比较填料及强化曝气对DOM代谢的影响，研究结果表明：填充焦炭的反应器处理COD、NH₄⁺-N、DOC、蛋白质、多糖和UV₂₅₄的效果明显优于填充石英砂的反应器；表层连续曝气能有效地提高对COD和NH₄⁺-N的去除效果，平均最优去除率分别为89.58%和51.15%，与未曝气组相比分别平均提高了4.22%和14.79%，COD和NH₄⁺-N的去除与DOC中HPI组分的降解成相关性；系统表层进行曝气大大提高了系统对TPI-A中溶解性蛋白质的降解，降解率为65.9%，而对多糖中TPI-A组分的降解与未曝气相比无明显差异.

• Abstract：In order to study the degradation and residue of dissolved organic matter (DOM) in the ecological restoration system, artificial constructed wetlands (CWs) with quartz sand, coke and aeration system were developed, and the effects of packing materials and enhanced aeration on DOM metabolism were studied. the research results show that the CW packed with coke performed better than the one with quartz sand. The continuous surface aeration can effectively improve the removal of COD and NH₄⁺-N, with the highest removal rate of 89.58% and 51.15%, respectively. In comparison, the average removal rate is 4.22% and 14.79%, respectively, for the non-aerated group. The removal of COD and NH₄⁺-N is correlated well with the degradation of HPI components in DOC. surface Aeration greatly improved the degradation of soluble proteins in TPI-A, with a degradation rate of 65.9%. However, there was no significant difference between the degradation of polysaccharide.

• Key words：constructed wetlands  NH₄⁺-N  COD  DOM  aeration

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