硝酸盐反硝化颗粒污泥的快速培养与理化特性  

Rapid cultivation and physicochemical characteristic of nitrate denitrification granular sludge

作　　者：刘晓宇[1] 郭延凯[1] 马志远 薛耀琦 张晨晓[1] 段莉丽[1] 李敏[1] 郭建博[1] 

机构地区：[1]河北科技大学环境科学与工程学院,石家庄050018 [2]河北省环境地质勘察院,石家庄050021

出　　处：《环境工程学报》2016年第3期1300-1304,共5页Chinese Journal of Environmental Engineering

基　　金：2010年教育部新世纪优秀人才支持计划项目(NCET-10-0127);河北省杰出青年科学基金(E2012208012);河北省高校百名优秀创新人才支持计划(II)(BR2-211);河北省高校重点学科建设项目

摘　　要：以甲醇为碳源,在USB反应器内接种活性污泥,50 d内培养出优质的反硝化颗粒污泥。颗粒污泥的形成历经3个阶段:启动运行期,颗粒污泥出现期以及颗粒污泥成熟期。颗粒污泥床底层反硝化效率最高可达总量的78%,中部颗粒污泥湿密度与沉降速率较大,分别为1.077 g/m L和194 m/h。成熟的颗粒污泥具有湿密度大,沉降速率高等特点,颗粒表面丝状体互相缠绕,有明显的孔隙结构。Well-formed denitrifying granular sludge was obtained within 50 days. When activated sludge was inoculated with methanol as a carbon source in a USB reactor,the formation process of the denitrifying granular sludge included three periods： the start running period,granular appeared period,and granular matured period. The denitrifying efficiency in the bottom reactor reached 78%. The wet density and settleability of the granular sludge in the middle reactor area were as high as 1. 077 g / m L and 194 m / h,respectively,which were higher than those in the bottom and upper reactors. The mature granular sludge had notable characteristics,including high density and good settleability. The surface of the granules was dominated by a filamentous structure,and a porous structure was naturally found within the granules.

关 键 词：反硝化 颗粒污泥 理化特性 

分 类 号：X703.1[环境科学与工程—环境工程]