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水力空化-酸化调理增强污泥脱水性能分析

连广浒 程刚 张霖钰 张昱 宋志军 徐晓杰 温玉婷 蔡美强

连广浒, 程刚, 张霖钰, 张昱, 宋志军, 徐晓杰, 温玉婷, 蔡美强. 水力空化-酸化调理增强污泥脱水性能分析[J]. 环境工程, 2020, 38(8): 96-100,70. doi: 10.13205/j.hjgc.202008016
引用本文: 连广浒, 程刚, 张霖钰, 张昱, 宋志军, 徐晓杰, 温玉婷, 蔡美强. 水力空化-酸化调理增强污泥脱水性能分析[J]. 环境工程, 2020, 38(8): 96-100,70. doi: 10.13205/j.hjgc.202008016
LIAN Guang-hu, CHENG Gang, ZHANG Lin-yu, ZHANG Yu, SONG Zhi-jun, XU Xiao-jie, WEN Yu-ting, CAI Mei-qiang. SLUDGE DEWATERING PERFORMANCE ENHANCEMENT BY HYDRODYNAMIC CAVITATION-ACIDIFICATION CONDITIONING[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(8): 96-100,70. doi: 10.13205/j.hjgc.202008016
Citation: LIAN Guang-hu, CHENG Gang, ZHANG Lin-yu, ZHANG Yu, SONG Zhi-jun, XU Xiao-jie, WEN Yu-ting, CAI Mei-qiang. SLUDGE DEWATERING PERFORMANCE ENHANCEMENT BY HYDRODYNAMIC CAVITATION-ACIDIFICATION CONDITIONING[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(8): 96-100,70. doi: 10.13205/j.hjgc.202008016

水力空化-酸化调理增强污泥脱水性能分析

doi: 10.13205/j.hjgc.202008016
基金项目: 

浙江省自然科学基金(LY19B070003,LY17B050001);国家级创新项目(GJ201823011);浙江新苗人才计划(2018R408062,2019R408001)。

详细信息
    作者简介:

    连广浒(1994-),男,硕士研究生,主要研究方向为污泥处理与处置。liangh_1127@163.com

    通讯作者:

    蔡美强(1978-),男,博士,副教授,主要研究方向为环境功能材料、污泥处理及资源化、高级氧化技术和功能材料。caimeiqiang@163.com

SLUDGE DEWATERING PERFORMANCE ENHANCEMENT BY HYDRODYNAMIC CAVITATION-ACIDIFICATION CONDITIONING

  • 摘要: 研究了水力空化-酸化调理作用于污泥脱水的机理。以污泥比阻(specific resistance to filtration,SRF)、污泥含水率和污泥毛细吸水时间(capillary sunction time,CST)作为主要的评价指标,测定污泥胞外聚合物(extracellular polymeric substances,EPS)中多糖、蛋白含量并进行了污泥酸化程度、污泥电子显微图像分析。结果表明:经水力空化-酸化调理污泥,污泥含水率和SRF分别从83.1%和5.12×1011 m/kg下降到69.8%和2.41×1011 m/kg,CST由50 s下降至20.8 s,各EPS组分含量下降明显,酸化作用通过影响污泥的溶解型胞外聚合物(S-EPS)和松散结合型胞外聚合物(LB-EPS)中的多糖及蛋白含量改变污泥的脱水性,pH=3时污泥脱水效果最好。综上所述,水力空化-酸化调理能大大增强污泥的脱水性能,在实际工程中具有很大的应用价值。
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  • 收稿日期:  2019-06-26

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