基于主成分分析法的高海拔A2/O工艺特性研究  

Study on Process Characteristics of High Altitude A^2/O Process Based on Principal Component Analysis

作　　者：宗永臣 张永恒 陆光华 陈相宇 ZONG Yongchen;ZHANG Yongheng;LU Guanghua;CHEN Xiangyu(Res.Institute of Tibet Plateau Ecology,Tibet Agriculture ＆ Animal Husbandry University;Tibet Key Laboratory of Forest Ecology in Plateau A feet,Ministry of Educatio;National Key Station of Field Scientific Observation ＆ Experimen;Key Laboratory of Forest Ecology in Plateau Area,Tibet A utonomous Regio;United Key Laboratories of Ecological Security,Tibet Autonomous Regio;2.Water Conservancy Project ＆ Civil Engineering College,Tibet Agriculture ＆ Animal Husbandry University： Linzhi860000,China)

机构地区：[1]西藏农牧学院高原生态研究所、西藏高原森林生态教育部重点实验室、西藏林芝高山森林生态系统国家野外科学观测研究站、西藏自治区高原森林生态实验室、西藏自治区生态安全联合实验,西藏林芝860000 [2]西藏农牧学院水利土木工程学院,西藏林芝860000

出　　处：《水处理技术》2018年第9期116-119,共4页Technology of Water Treatment

基　　金：西藏高原生态安全联合重点实验室开放基金课题(STX2018-04);国家自然科学基金项目(51868069,51769034);西藏自治区高等学校科研创新团队“高原水环境保护与水生态安全”;西藏科技厅地区自然基金项目(2016ZR-15-35);西藏大学农牧学院雪域人才计划项目(2015xYD09,2015XYA01)

摘　　要：以高海拔下A^2/O工艺实验数据为支撑,运用主成分分析法分析了A^2/O工艺的实验特性。对水力停留时间(HRT)和污泥停留时间(SRT)的TN、TP、COD 3类水质指标去除率进行主成分分析。结果表明,已有HRT和SRT下A^2/O工艺出水均不能GB 28918-2002达到一级A标准,应进一步采取措施改善出水水质;评价综合得分随着HRT和SRT的增加而减小,即HRT和SRT的延长可以在一定程度上改善出水水质,SRT以14~18 d为宜。Based on the experimental data of A2/O process at high altitude, the operation characteristics of the A2/O process were analyzed by principal component analysis （PCA）. The PCA of TN, TP, COD, NH4＋-N removal rate by hydraulic retention time （HRT） and sludge residence time （SRT） was carried out. The results showed that, the effluent with existing HRT and SRT in A2O process could not meet first level A standard of GB 28918-2002, and further measures should be taken to improve the effluent quality. The comprehensive score decreased with the increase of HRT and SRT, that was, the extension of HRT and SRT could improve the effluent quality in a certain, the appropriate SRT was 14-18 d.

关 键 词：主成分分析 A2/O 水力停留时间 污泥停留时间 综合得分 

分 类 号：X703.1[环境科学与工程—环境工程]