基于SNADPR作用的复合式人工快速渗滤系统的运行性能及微生物学特征  

Study on the operation performance and microbiological characteristics of a hybrid constructed rapid infiltration system utilizing the SNADPR process

作　　者：孙峰 余昕洁 武威 潘玲阳 王振[1] SUN Feng;YU Xinjie;WU Wei;PAN Lingyang;WANG Zhen(School of Resources and Environment,Anhui Agricultural University,Hefei 230036,China;School of Urban Construction,Anhui Xinhua University,Hefei 230088,China)

机构地区：[1]安徽农业大学资源与环境学院,合肥230036 [2]安徽新华学院城市建设学院,合肥230088

出　　处：《环境工程学报》2021年第10期3387-3399,共13页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金青年资助项目(51508002);安徽省重点研究与开发计划资助项目(202004h07020024,201834040011);安徽省自然科学基金面上资助项目(2008085ME162);安徽省高等学校自然科学研究重点项目(KJ2020A0793)。

摘　　要：将基于亚硝化的全程自养脱氮(CANON)作用的人工快速渗滤(CRI)装置与反硝化除磷(DPR)型CRI装置耦合为基于同步短程硝化、厌氧氨氧化、反硝化和反硝化除磷(SNADPR)作用的复合式人工快速渗滤(H-CRI)系统,探究了其运行性能及微生物学特征。当H-CRI系统按照内循环潮汐流模式连续运行时,反应装置在水力负荷为0.18 m^(3)·(m^(2)·d)^(−1)的条件下对生活污水中有机物、TN、NH^(+)_(4)-N和TP的去除率分别可达(94.39±1.32)%、(97.87±0.43)%、(99.00±0.32)%和(95.96±2.79)%。其中,CANON反应与生物蓄磷作用分别是系统脱氮除磷的主要途径,两者去除的氮磷量分别占H-CRI系统脱氮除磷总量的(72.13±6.12)%和(82.29±5.58)%。结合分子生物学实验结果可知,适宜的耦合模式有助于实现H-CRI系统中好氧氨氧化微生物、厌氧氨氧化菌、反硝化菌和聚磷菌群的有效协作,进而可促进SNADPR反应体系在其中形成并强化,实现对生活污水中有机物及氮磷元素的高效同步去除。This study was conducted to explore the operation performance and associated microbiological characteristics of a hybrid constructed rapid infiltration(H-CRI)system utilizing the simultaneous partial nitrification,ANAMMOX,denitrification,and denitrifying phosphorus removal(SNADPR)process,which was composed of a constructed rapid infiltration(CRI)device utilizing the completely autotrophic nitrogen removal over nitrite(CANON)process and a CRI device with the denitrifying phosphorus removal(DPR)process.The results showed that,as the H-CRI system was operated according to the internal circulation tidal flow operation mode,the average removal efficiencies of organics,TN,NH^(+)_(4)-N,and TP by the coupling device could reach(94.39±1.32)%,(97.87±0.43)%,(99.00±0.32)%,and(95.96±2.79)%at the hydraulic loading rate(HLR)of 0.18 m^(3)·(m^(2)·d)^(−1),respectively.Regarding the coupling system,the CANON process and luxury phosphorus uptake by PAOs were the main pathways in nitrogen and phosphorus removal,which accounted for(72.13±6.12)%and(82.29±5.58)%of total nitrogen and phosphorus removal,respectively.In combination with the results of experiments of the molecular biology,the appropriate coupling mode could be conducive to the effective collaboration among four functional microbes[namely aerobic ammonia-oxidizing microorganisms,anaerobic ammonia oxidizing bacteria(AnAOB),denitrifying bacteria,and polyphosphate-accumulating organisms(PAOs)]in the H-CRI system when treating domestic sewage,then promoted the formation and reinforcement of the SNADPR process,which resulted in the simultaneous efficient removal of organics,nitrogen,and phosphorus by the system.

关 键 词：人工快速渗滤系统 厌氧氨氧化 反硝化除磷 耦合 运行特性 

分 类 号：X703[环境科学与工程—环境工程]