高盐度冲击后厌氧氨氧化工艺恢复及运行特性  

Recovery and Operational Characteristics of Anammox Process after High Salinity Shock

作　　者：王朝朝[1,2] 张欢 闫立娜[3] 高鹏 武新娟[1,2] 马骏[1,2] 殷春雨 李思敏 WANG Zhao-zhao;ZHANG Huan;YAN Li-na;GAO Peng;WU Xin-juan;MA Jun;YIN Chun-yu;LI Si-min(Hebei Technology Innovation Center for Water Pollution Control and Water Ecological Remediation,Hebei University of Engineering,Handan 056038,China;School of Energy and Environmental Engineering,Hebei University of Engineering,Handan 056038,China;College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]河北工程大学,河北省水污染控制与水生态修复技术创新中心,河北邯郸056038 [2]河北工程大学能源与环境工程学院,河北邯郸056038 [3]北京工业大学环境与能源工程学院,北京100124

出　　处：《中国给水排水》2021年第3期16-23,共8页China Water & Wastewater

基　　金：河北省研究生创新基金资助项目(CXZZSS2019071);河北省自然科学基金资助项目(E2016402017);河北省高校青年拔尖人才计划项目(BJ2019029)。

摘　　要：通过逐步增加UASB反应器进水氮负荷[1.06~1.42 kg/(m^(3)·d)]方式,考察了厌氧氨氧化(Anammox)工艺受到高盐度冲击后的恢复及运行特性。结果表明,经过156 d的运行,NH4+-N、NO2--N、TN去除率及总氮去除负荷(NRR)分别达到97.57%、96.40%、83.90%和1.19kg/(m^(3)·d),这主要归功于Anammox污泥的活性得到了有效恢复[TN的比降解速率由0.131mg/(mgVSS·d)提高到0.302 mg/(mgVSS·d)];随着工艺运行效能的恢复,颗粒污泥的颜色由深褐色变为红褐色,平均粒径也随之增大,粒径>1.5 mm的占比最高,达到了68.25%;此外,胞外聚合物(EPS)含量由96.66 mg/g增大至147.98 mg/g,并且PN/PS值由4.86增大至13.34,厌氧氨氧化工艺可恢复到高效运行状态。The recovery and operational characteristics of Anammox process after high salinity shock were investigated by stepwise increasing influent nitrogen loading rate(NLR)from 1.06 kg/(m^(3)·d)to 1.42 kg/(m^(3)·d)in an upflow anaerobic sludge blanket(UASB).After operating for 156 days,the removal efficiencies of NH4+-N,NO2--N and TN reached 97.57%,96.40%and 83.90%,and the total nitrogen removal loading(NRR)reached 1.19 kg/(m^(3)·d),which was attributed to the effective recovery of Anammox sludge activity[specific degradation rate of TN increased from 0.131 mg/(mgVSS·d)to 0.302 mg/(mgVSS·d)].With the recovery of the process performance,the color of the granular sludge turned from deep brown to red brown,and the average particle size increased,among which granules with particle size larger than 1.5 mm accounted for the maximum proportion of68.25%.Moreover,EPS content increased from 96.66 mg/g to 147.98 mg/g,and PN/PS ratio increased from 4.86 to 13.34,which further proved that the Anammox process recovered to an efficient operational state.

关 键 词：生物脱氮 盐度 厌氧氨氧化 活性恢复 污泥形态 

分 类 号：TU992[建筑科学—市政工程]