厨余垃圾干发酵工程调试和运行阶段产生的沼渣特性研究  

Characteristics of biogas residue derived from kitchen waste dry fermentation during stage of commissioning and operation

作　　者：方祥 康建邨 郑苇 范世锁[1] FANG Xiang;KANG Jiancun;ZHENG Wei;FAN Shisuo(College of Resources and Environment,Anhui Agricultural University,Hefei Anhui 230036,China;不详)

机构地区：[1]安徽农业大学资源与环境学院,安徽合肥230036 [2]中国市政工程华北设计研究总院有限公司,天津300074

出　　处：《工业安全与环保》2023年第4期94-97,共4页Industrial Safety and Environmental Protection

基　　金：住房和城乡建设部研究开发项目(2021-K-119);住房和城乡建设部科技示范项目(2021-S-051);安徽省高等学校省级质量工程项目(2020xfxm18)。

摘　　要：针对厨余垃圾干发酵工程案例的调试与正式运行阶段产生的沼渣进行取样,测定其物理组成、总固体物(TS)、挥发性固体(VS)、碳氮比、生物稳定性、植物毒性与氯离子含量,发现因调试阶段大量接种市政污泥且调试阶段干发酵时间较长,导致其各项数值如含水率、VS、碳氮比、四日呼吸指数(AT_(4))、氯离子浓度等均低于正式运行阶段,后续的资源化利用中应有针对性工艺,差异化处理2类沼渣。该研究结果可为我国沼渣资源化利用提供数据支撑。In this study,samples were collected from the debugging and formal operation stages of a dry fermentation engineering factory.The physical composition,TS and VS,carbon and nitrogen ratio,biological stability,phytotoxi city and chloride content between the samples were compared.The characteristics of biogas residue from commission ing stage,such as water content,VS,carbon and nitrogen ratio,AT_(4),chloride concentration,were lower than the sam ples from formal operation stage,which was attributed the introduction of municipal sludge and the long time of the commissioning stage.The biogas residue from the two stages should be differentiated treatment in the subsequent re source utilization.This study provides a data support for the resource utilization of biogas residue in China.

关 键 词：厨余垃圾 螺旋挤压 振动筛分 离心脱水 沼渣特性 

分 类 号：TQ920.1[轻工技术与工程—发酵工程] X799.3[环境科学与工程—环境工程]