水力负荷对生物砂滤池部分亚硝化的影响及动力学研究  

Effect of Hydraulic Loading on Partial Nitrification of Biological Sand Filter and Its Dynamics

作　　者：陈佼 陆一新 蒋露[1] 唐丽 王瑞 Chen Jiao;Lu Yixin;Jiang Lu;Tang Li;Wang Rui(College of Architectural and Environmental Engineering, Chengdu Technological University, Chengdu 611730, China;Center of Big Data for Smart Environmental Protection, Chengdu Technological University, Chengdu 611730, China)

机构地区：[1]成都工业学院建筑与环境工程学院,四川成都611730 [2]成都工业学院智慧环保大数据中心,四川成都611730

出　　处：《环境科学与管理》2019年第5期26-31,共6页Environmental Science and Management

基　　金：国家自然科学基金项目(41502333);四川省环境污染防治重点研发项目(2017SZ0179);四川省科技计划资助项目(2019JDRC0136);成都工业学院实验室开放基金项目(2018SJ07)

摘　　要：采用部分亚硝化型生物砂滤池处理模拟污水,考察了不同水力负荷对部分亚硝化效果的影响及NH4^+-N去除动力学特征。结果表明,当水力负荷为1.0m/d、出水高度为75cm时,生物砂滤池表现出良好的部分亚硝化性能,NH+4-N去除率、NO-2-N积累率分别稳定在60%、95%左右,出水NO2^--N/NH4^+-N比为1.22~1.34,满足后续厌氧氨氧化的进水需求。当进水NH4^+-N浓度(S0)为45~50mg/L、水力负荷(q)为0.2~1.2m/d时,NH+4-N去除动力学模型可表示为Sh/S0=exp(-0.0127q-0.8991h)。当出水高度h=72.1489q^0.8991时,生物砂滤池能保持稳定的部分亚硝化出水水质。The simulated wastewater was treated by a biological sand filter based on partial nitrification performance. The effect of hydraulic loading on partial nitrification and the dynamic characteristics of NH + 4-N removal were investigated. The results showed that the biological sand filter had good partial nitrification performance when the influent hydraulic loading was 1.0 m/d and the effluent height was 75 cm. Its NH + 4-N removal rate and NO - 2-N accumulation rate were stable at abound 60% and 95% respectively. The effluent NO - 2-N/NH + 4-N ratio was 1.22~1.34, which could meet the demand of subsequent anaerobic ammonia oxidation. The dynamic model of NH + 4-N removal could be expressed as S h/S 0 =exp (-0.0127q -0.899 1 h) when the influent NH + 4-N concentration ( S 0 ) was 45~50 mg/L and the hydraulic loading(q) was 0.2~1.2 m/d. When the effluent height equaled to 72.148 9 q 0.899 1 , the biological sand filter could maintain a stable partial nitrification effluent.

关 键 词：水力负荷 生物砂滤池 部分亚硝化 动力学 

分 类 号：X703.1[环境科学与工程—环境工程]