化学除磷药剂中三价铁铝对生物系统污泥活性影响的研究  

Effects of Fe^(3+) and Al^(3+) in the chemical-aid phosphorus removal drug on the activated sludge of the biological treatment system

作　　者：侯艳玲[1] 刘艳臣[1] 邱勇[1] 何苗[1] 施汉昌[1] 

机构地区：[1]清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京100084

出　　处：《给水排水》2010年第6期38-41,共4页Water & Wastewater Engineering

基　　金："十一五"国家科技支撑计划项目(2006BAC19B06)

摘　　要：辅助化学除磷过程中以投加铁盐和铝盐为主,但化学药剂的投加会对生物处理系统产生潜在的影响。针对Fe3+、Al3+的投加对活性污泥呼吸速率(OUR)的影响展开研究,结果表明,对活性污泥呼吸速率的影响Al3+强于Fe3+,Al3+的投加对亚硝化细菌和异养菌的呼吸速率均存在抑制作用,对硝化细菌的抑制作用不明显。当Al3+的投加量达到10-3mol/L时,会对生化单元内微生物的活性产生较为明显的抑制作用。Fe^3＋ and Al^3＋ were the major components of the coagulant in the chemical-aid phosphorus removal process,but the potential negative effects on performance of biological process may exist.In this paper,the study was carried out to investigate the effects of the Fe^3＋ and Al^3＋ on the activated sludge oxygen uptake rate（OUR）.The result shows that Al^3＋ has stronger inhibitory effects than Fe^3＋ on the activated sludge OUR.Al^3＋ shows different inhibitory effects on nitrosobacteria and heterotroph in biological process and almost no notable effects on nitrobacteria is found.When the dosing concentration of the Al^3＋ reaches 10^-3 mol/L,the distinct inhibitory effect on the activity of microbacteria in the biological process will come out.

关 键 词：城市污水 化学除磷 活性污泥 呼吸速率 铁盐 铝盐 

分 类 号：X703.3[环境科学与工程—环境工程]