含铁矿物质粉末促进厌氧氨氧化颗粒污泥形成及颗粒特征分析  

Acceleration effect of iron-containing mineral powders on formation of anammox granular sludge and particle characteristics analysis thereof

作　　者：夏静远 胡真虎[1,2] XIA Jingyuan;HU Zhenhu(Department of Municipal Engineering,School of Civil Engineering,Hefei University of Technology,Hefei 230009,China;Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources,Hefei 230009,China)

机构地区：[1]合肥工业大学土木与水利工程学院市政工程系,合肥230009 [2]安徽省农村水环境治理与水资源利用工程实验室,合肥230009

出　　处：《工业用水与废水》2023年第2期14-19,共6页Industrial Water & Wastewater

基　　金：安徽省科技重大专项“养殖废水厌氧氨氧化高效脱氮关键装备研发与示范项目”(18030801102)。

摘　　要：为了促进厌氧氨氧化颗粒污泥的形成,提高污泥沉降性能,向启动初期的UASB厌氧氨氧化反应器中投加粉末状天然含铁矿物,从反应器性能、污泥变化情况和颗粒污泥特征等方面研究分析了该条件下厌氧氨氧化污泥的颗粒化过程。在投加含铁矿物质粉末后,颗粒污泥占比从反应器体积的0.9%提高到了15%,颗粒污泥平均密度从1.027 g/cm^(3)增加到了1.080 g/cm^(3),污泥SVI从98.65 mL/g[VSS]降至33.51 mL/g[VSS],反应器中颗粒污泥的形成速率明显提高,颗粒污泥比重增加,污泥沉降性能显著提升。含铁矿物质粉末的投加有效地促进了厌氧氨氧化污泥的颗粒化过程,提高了颗粒污泥的沉降性能。In order to accelerate the formation of anammox granular sludge and improve the sedimentation performance of the sludge,natural iron-containing mineral powders was added into UASB anammox reactor at the initial start-up stage,the granulation process of anammox sludge under the said condition were investigated from aspects of reactor performance,sludge variation condition,granular sludge characteristics and so on.It could be seen that,after adding iron-containing mineral powders,the percentage of granular sludge to the reactor volume was increased from 0.9%to 15%,the average density of granular sludge increased from 1.027 to 1.080 g/cm^(3),the SVI decreased from 98.65 to 33.51 mL/g[VSS],the formation rate of granular sludge in the reactor increased obviously,the granular sludge density increased,the sedimentation performance of the sludge improved significantly.Therefore,the addition of iron-containing mineral powders can effectively accelerate the granulation process of anammox sludge,and improve the sedimentation performance of the said granular sludge.

关 键 词：厌氧氨氧化 含铁矿物质粉末 UASB反应器 污泥颗粒化 污泥沉降性能 颗粒污泥特征 

分 类 号：X703.5[环境科学与工程—环境工程]