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剩余污泥厌氧发酵和微塑料的相互作用机制

郑晓英 杨珊珊 杨萌萌 赵志琳 张会杰 韩宗朔 周超

郑晓英, 杨珊珊, 杨萌萌, 赵志琳, 张会杰, 韩宗朔, 周超. 剩余污泥厌氧发酵和微塑料的相互作用机制[J]. 环境工程, 2023, 41(4): 92-100. doi: 10.13205/j.hjgc.202304013
引用本文: 郑晓英, 杨珊珊, 杨萌萌, 赵志琳, 张会杰, 韩宗朔, 周超. 剩余污泥厌氧发酵和微塑料的相互作用机制[J]. 环境工程, 2023, 41(4): 92-100. doi: 10.13205/j.hjgc.202304013
ZHENG Xiaoying, YANG Shanshan, YANG Mengmeng, ZHAO Zhilin, ZHANG Huijie, HAN Zongshuo, ZHOU Chao. INTERACTION BETWEEN ANAEROBIC FERMENTATION OF WASTE ACTIVATED SLUDGE AND MICROPLASTICS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 92-100. doi: 10.13205/j.hjgc.202304013
Citation: ZHENG Xiaoying, YANG Shanshan, YANG Mengmeng, ZHAO Zhilin, ZHANG Huijie, HAN Zongshuo, ZHOU Chao. INTERACTION BETWEEN ANAEROBIC FERMENTATION OF WASTE ACTIVATED SLUDGE AND MICROPLASTICS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 92-100. doi: 10.13205/j.hjgc.202304013

剩余污泥厌氧发酵和微塑料的相互作用机制

doi: 10.13205/j.hjgc.202304013
基金项目: 

国家自然科学基金项目(51678214)

国家重点研发计划项目(2016YFC0400804)

江苏高校优势学科建设工程资助项目(PAPD)

详细信息
    作者简介:

    郑晓英(1976-),女,教授,主要研究方向为污水资源化利用理论与技术。zhxyqq@hhu.edu.cn

    通讯作者:

    杨珊珊(1999-),女,硕士研究生,主要研究方向为污水资源化利用理论与技术。Yangss99@163.com

INTERACTION BETWEEN ANAEROBIC FERMENTATION OF WASTE ACTIVATED SLUDGE AND MICROPLASTICS

  • 摘要: 以聚乙烯(PE)微塑料作为典型微塑料,在恒定碱性条件(pH=10)和非恒定碱性(初始pH=10)条件下,研究PE和剩余污泥厌氧发酵之间的相互作用机制。结果表明:在污泥厌氧发酵初始阶段,PE对产酸有明显的促进作用,而在后期呈相反趋势。厌氧发酵60 d时,恒定碱性条件下,投加PE组(R2)的VFAs产量与空白组R1相比降低了31.46%;在非恒定碱性条件下,投加PE组(R4)中VFAs产量与空白组R3相比降低了15.78%,说明PE长期胁迫对污泥厌氧发酵VFAs的产生有抑制作用。同时,PE会刺激微生物分泌更多的EPS(主要成分为蛋白质),降低Zeta电位并破坏EPS的结构。另外,综合扫描电子显微镜(SEM)、拉曼光谱、傅里叶变换红外光谱(FTIR)、X射线光电子能谱(XPS)、水接触角分析微塑料的性质特征发现,由于环境条件和微生物活动的影响,污泥厌氧发酵会导致PE老化,且非恒定碱性条件下微塑料的老化速率更快。
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  • 被引次数: 0
出版历程
  • 收稿日期:  2022-08-03
  • 网络出版日期:  2023-05-26
  • 刊出日期:  2023-04-01

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