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首页> 外文期刊>Environmental research >Soluble metal ions migration and distribution in sludge electro-dewatering
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Soluble metal ions migration and distribution in sludge electro-dewatering

机译：污泥电脱水过程中可溶性金属离子的迁移与分布

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摘要

In this study, the effects of electro-dewatering technology applied to high-salt industrial sludge dewatering performance were investigated, in terms of ions migrations and distributions by model simulation and layered tests. The simulation results of Na~+ and K~+ migrations were consistent with layered experiments during electro-dewatering, where Na~+ ions migrated faster than K~+ ions. More than 80% Na~+ ions were removed by elec-tromigration, which would be useful in subsequent sludge utilization. The mass specific energy consumption was reduced from 350.08 to 295.88 kWh per ton sludge by means of piecewise voltage electro-dewatering method. This study provided insights into the soluble ions migration and distribution mechanism in electro-dewatering process, and a method to improve commercial application performance of high-salt industrial sludge electro-dewatering.
机译：在这项研究中，通过模型模拟和分层试验，研究了离子脱水技术对高盐工业污泥脱水性能的影响，研究了离子迁移和分布方面的问题。 Na〜+和K〜+迁移的模拟结果与电脱水过程中的分层实验一致，其中Na〜+离子迁移快于K〜+离子。通过电迁移去除了超过80％的Na〜+离子，这对于随后的污泥利用非常有用。通过分段电压电脱水法，每吨污泥的单位质量能耗从350.08 kWh降低至295.88 kWh。该研究为电脱水过程中可溶性离子的迁移和分布机理提供了见识，并为提高高盐工业污泥电脱水的商业应用性能提供了一种方法。

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  • 来源
    《Environmental research》 |2020年第1期|9.1-9.10|共10页
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  • 作者单位

    School of Environmental Science and Engineering Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 China;

    Shanghai Techase Environment Protection Co. Ltd 1121 North Zhongshan No. 2 Road Shanghai 200092 China College of Environmental Science and Engineering Tongji University 1239 Siping Road Shanghai 200092 China;

    Shanghai Techase Environment Protection Co. Ltd 1121 North Zhongshan No. 2 Road Shanghai 200092 China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Highly-salty sludge; Electro-dewatering; Ions migration and distribution; Model simulation;

    机译：高盐污泥;电脱水;离子迁移和分布;模型模拟;

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