进水COD浓度对活性污泥微型动物运动速度的影响  

EFFECT OF INFLUENT COD CONCENTRATION ON MOTION VELOCITY OF MICROFAUNA IN ACTIVATED SLUDGE

作　　者：胡小兵[1,2] 李晶晶 沈翼军[1,2] 常静[1] 刘浩宇[1] 苏浚文 钟梅英 HU Xiaobing;LI Jingjing;SHEN Yijun;CHANG Jing;LIU Haoyu;SU Junwen;ZHONG Meiying(Civil Engineering&Architecture,Anhui University of Technology,Ma’anshan 243032,China;Engineering Research Center of Water Purification and Utilization Technology Based on Biofilm Process,Ministry of Education,Ma’anshan 243032,China)

机构地区：[1]安徽工业大学建筑工程学院,安徽马鞍山243032 [2]生物膜法水质净化及利用技术教育部工程研究中心,安徽马鞍山243032

出　　处：《环境工程》2023年第7期109-115,共7页Environmental Engineering

基　　金：安徽省重点研究与开发计划(202004h07020027);生物膜法水质净化及利用技术教育部工程研究中心项目(BWPU2021ZY01,BRT19-02)。

摘　　要：为探索污水中有机物浓度对活性污泥微型动物运动的影响,以常见运动方式(直线游泳型、曲线游泳型与综合运动型)的微型动物为研究对象,分析COD浓度对平均线速度(V)、平均角速度(W)和平均曲线速度(V_(CL))的影响。结果表明:随着COD浓度升高,曲线游泳型、运动速度较快的凹扁前口虫(Frontonia depressa)的平均角速度增加了87.7%,曲线游泳型、运动速度非常快的毛板壳虫(Coleps hirtus)平均角速度增加了49.1%,2种曲线游泳型微型动物的W与COD浓度显著相关,(r分别为0.921、0.955),具有指示作用。COD浓度与直线游泳型、运动速度较快的三角袋鞭虫(Peranema trichophorum)的V呈负相关(r=-0.723);与凹扁前口虫的V呈正相关(r=0.877),具有较好的指示作用。COD浓度对运动速度较慢的葡萄异鞭虫(Anisonema acinus)、须足轮虫属(Euchlanis sp.)影响较小,对综合运动型、速度较快的锐利楯纤虫(Aspidisca lynceus)的曲线速度不产生显著影响。In order to explore the effect of the concentration of organic matter on the microscopic animals’movement in activated sludge,the microfauna with ordinary movement modes(the linear swimming type,the curved swimming type and the comprehensive swimming type)were taken as the research object,and the effect of COD concentration on average linear velocity(V),average angular velocity(W)and average curve velocity(VCL)of microfauna were analyzed.The results showed that with the increase of COD concentration,the average angular velocity of curve swimming and fast-moving Frontonia depressa increased by 87.7%.The average angular velocity of Coleps hirtus,which moves very fast,increased by 49.1%.Both average angular velocities of the two curved swimming types were significantly correlated with COD concentration(r=0.921,r=0.955)with a better indicating function.The COD concentration was negatively correlated with the linear velocity of Peranema trichophorum(r=-0.723);it was positively correlated with the linear velocity of Frontonia depressa(r=0.877).Both are with certain indicative function.COD concentration had little effect on Anisonema acinus and Euchlanis sp.,but had no significant effect on the curve velocity of Aspidisca lynceus.

关 键 词：COD浓度 微型动物 运动线速度 运动角速度 

分 类 号：X703[环境科学与工程—环境工程]