厌氧氨氧化膨胀污泥床反应器的化学计量学特性  

Stoichiometric characteristics of anammox expanded sludge bed reactor

作　　者：唐崇俭[1] 郑平[1] 

机构地区：[1]浙江大学环境工程系,浙江杭州310029

出　　处：《中国环境科学》2010年第11期1446-1452,共7页China Environmental Science

基　　金：国家"863"项目(2009AA06Z311);国家自然科学基金资助项目(30770039);"十一五"国家科技支撑计划(2008BADC4B05)

摘　　要：采用厌氧氨氧化膨胀污泥床(ESB)反应器,研究了模拟废水中基质氨和亚硝酸盐对厌氧氨氧化工艺化学计量学的影响.结果表明,当分别只提高1种反应物的浓度时,反应器均表现出对富余基质具有额外吸纳的能力,致使其对富余基质的绝对去除量和相对去除量均增多.从厌氧氨氧化的反应模型和化学平衡的原理出发,可解释厌氧氨氧化工艺化学计量学的特性.根据化学计量学特性,可按需选取相应的进水基质比例,以实现不同的目的.The stoichiometric characteristics of anammox （anaerobic ammonium oxidation） process were investigated in an expanded sludge bed （ESB） reactor by separately increasing ammonium and nitrite.The stoichiometric ratios of the reactor were significantly affected by influent ammonium and nitrite concentrations and their molar ratios.There were residual substrate over-consumptions in the anammox ESB reactor.When one of the substrates was relatively in excess in the influent,both the absolute and relative removal of the reactant increased.The combination of anammox metabolic model and the chemical equilibrium theory were found to well explain the substrate over-consumption phenomenon.Based on the stoichiometric characteristics of anammox process,different influent substrate ratios could be controlled in order to obtain different objectives.

关 键 词：厌氧氨氧化 化学计量学 基质吸纳 化学平衡 生物脱氮 

分 类 号：X703.1[环境科学与工程—环境工程]