超声破解剩余污泥碳、磷生物可利用性分析  

Analysis of Bioavailability of Carbon and Phosphorus in Residual Sludge Cracked by Ultrasound

作　　者：艾胜书[1,2] 杨思文 孙雪健 张莹 蒲劲豪 边德军[1,2] AI Shengshu;YANG Siwen;SUN Xuejian;ZHANG Ying;PU Jinhao;BIAN Dejun(School of Water Conservancy&Environment Engineering,Changchun Institute of Technology,Changchun 130012,China;Jilin Provincial Key Laboratory of Municipal Wastewater Treatment(Changchun Institute of Technology),Changchun 130012,China;School of Environment,Northeast Normal University,Changchun 130117,China)

机构地区：[1]长春工程学院水利与环境工程学院,吉林长春130012 [2]吉林省城市污水处理重点实验室(长春工程学院),吉林长春130012 [3]东北师范大学环境学院,吉林长春130117

出　　处：《环境科学与技术》2024年第7期177-184,共8页Environmental Science & Technology

基　　金：吉林省科技发展计划项目(20230303007SF)。

摘　　要：为实现剩余污泥资源化利用,该研究利用超声破解装置释放剩余污泥的碳、磷,优化超声破解参数,并对破碎前后成份进行分析。结果表明,在超声时间为22 min、超声功率为720 W条件下,污泥中碳、磷释放完全。三维荧光和磷形态分析显示,超声破解后上清液主要成份为有机碳和有机磷,底层为无机脱水固体。污泥微观形态分析显示,超声可以有效破碎生物污泥絮体结构,实现污泥絮体和无机固体颗粒分离。研究发现,通过超声破解能够实现污泥有机和无机成份分离,有助于实现污泥资源回收利用。To achieve the resource utilization of residual sludge,this study used an ultrasonic cracking device to release C and P from the residual sludge.The ultrasonic cracking parameters was optimized,and the compositions of the solid and solution before and after crushing were analyzed.The results showed that at ultrasound power of 720 W,carbon and phosphorus were completely released from the sludge in 22 minutes.Three dimensional fluorescence and phosphorus morphology analysis showed that the main components in the supernatant after ultrasonic cracking were organic carbon and organic phosphorus,and the bottom layer was an inorganic dehydrated solid.Microscopic analysis of sludge morphology showed that ultrasound could effectively break down the structure of biological sludge flocs,achieving the separation of sludge flocs and inorganic solid particles.Research has found that,ultrasonic cracking can achieve the separation of organic and inorganic components in sludge,which helps to achieve the recycling and utilization of sludge resources.

关 键 词：活性污泥 超声破解 COD含量 TP含量 参数优化 

分 类 号：X703[环境科学与工程—环境工程]