多功能A^(2)O与水平潜流湿地在高寒地区的联合应用设计研究  

Research on Joint Application Design of Multifunctional A^(2)O and Horizontal Subsurface Flow Wetland in Alpine Regions

作　　者：屈连友 QU Lianyou(Environmental Protection Research Institute of Daqing Oilfield Water Supply Company)

机构地区：[1]大庆油田水务环保研究院

出　　处：《油气田地面工程》2025年第1期90-96,共7页Oil-Gas Field Surface Engineering

摘　　要：针对高寒地区冬季采用A^(2)O(厌氧-缺氧-好氧)工艺+水平潜流人工湿地联合处理生活污水出水中的氮、磷可能存在超标和污水水质多变等问题,对传统的A^(2)O工艺、水平潜流人工湿地结构进行创新性改进设计:A^(2)O工艺采用厌氧池、缺氧池、好氧池环绕在圆形竖流沉淀池外围,呈环状布置,减少污水热量损失、改善水力条件、提高微生物活性;厌氧池、缺氧池增设曝气工艺,实现ANO(缺氧-好氧)工艺、APO(厌氧-好氧)工艺、A^(2)O工艺可调式功能;O(好氧)工艺中添加悬浮填料,增加单位池容微生物含量,提高有机物、氮、磷等去除率。人工湿地通过试验优选高效除磷填料、根系发达植被根系深入低水位、填料正反粒度双级配布设,提高了氮、磷去除率和悬浮物截留率;人工湿地低水位进出水可提高冬季池内污水温度。结果表明,强化后的工艺系统不同工况下的实际运行效果达到了预期目标。In response to the potential issues of excessive nitrogen and phosphorus in the effluent of domestic sewage and the variability of sewage quality caused by the combined treatment of A^(2)O(anaerobic-anoxic-oxic)process and horizontal subsurface flow constructed wetland in alpine regions during winter,innovative design improvements have been made to the traditional A^(2)O process and the structure of horizontal subsurface flow constructed wetland.The A^(2)O process adopts anaerobic tanks,anoxic tanks,and oxic tanks surrounding the circular vertical flow sedimentation tank in a circular arrangement,reducing heat loss of sewage,improving hydraulic conditions,and enhancing microbial activity.The aeration process is added to anaerobic and anoxic tanks to realize the adjustable functions of ANO(anoxic-aerobic)process,APO(anaerobic-aerobic)process and A^(2)O process.Suspended fillers are added in the O(oxic)process,the unit capacity of microbial content is increased,and the removal rate of organic nitrogen and phosphorus is improved.Through experiments,the constructed wetland selects high-efficiency phosphorus removal fillers,deep vegetation with developed roots and low water level,and double-stage distribution of positive and negative particle sizes of fillers to improve the nitrogen and phosphorus removal rate and suspension retention rate.Low water level inflow and outflow of the constructed wetland can increase the temperature of sewage in the pond during winter.The results show that the actual operation effect of the enhanced process system under different working conditions has reached the expected goal.

关 键 词：高寒地区 A^(2)O工艺 水平潜流人工湿地 集约化 适应性改进 

分 类 号：X703[环境科学与工程—环境工程]