污泥淤砂分离器对分离分流污泥性质的影响

吉芳英, 范剑平, 晏鹏, 颜达超. 污泥淤砂分离器对分离分流污泥性质的影响[J]. 环境工程学报, 2014, 8(4): 1318-1322.
引用本文: 吉芳英, 范剑平, 晏鹏, 颜达超. 污泥淤砂分离器对分离分流污泥性质的影响[J]. 环境工程学报, 2014, 8(4): 1318-1322.
Ji Fangying, Fan Jianping, Yan Peng, Yan Dachao. Effects of sludge-grit separator on properties of separated sludge[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1318-1322.
Citation: Ji Fangying, Fan Jianping, Yan Peng, Yan Dachao. Effects of sludge-grit separator on properties of separated sludge[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1318-1322.

污泥淤砂分离器对分离分流污泥性质的影响

  • 基金项目:

    国家“水体污染控制与治理” 科技重大专项(2009ZX-07315-002-02)

  • 中图分类号: X703

Effects of sludge-grit separator on properties of separated sludge

  • Fund Project:
  • 摘要: 为解决我国很多城镇污水厂活性污泥的MLVSS/MLSS普遍偏低,污泥中泥沙淤积严重的问题,根据水力旋流器的分离原理,开发了污泥淤砂分离器,实现污泥中生物基质和淤砂的分离分流,研究污泥淤砂分离器主要结构参数排口比(底流口直径/溢流管直径)对分离分流污泥性质的影响。实验结果表明,排口比为0.4时,污泥经过污泥淤砂分离器后,得到的底流污泥MLVSS/MLSS比原污泥减小了34%,溢流污泥MLVSS/MLSS增大了16.8%,污泥中的生物基质富集在溢流污泥中,淤砂富集在底流污泥中;底流污泥浓度MLSS比原污泥增加了2.6倍,底流污泥SVI和CST分别减小了68%和70%,底流污泥浓缩效果明显,沉降性能和脱水性能大幅提高,有利于底流污泥的处理处置;进一步减小排口比,底流污泥浓缩效果、沉降性能和脱水性能均进一步提高。
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    [2] 吉芳英, 晏鹏.山地城市排水管网特细颗粒物特性及变化规律.环境科学研究, 2012, 25(3):322-327 Ji F.Y., Yan P.Characteristics and variation of superfine particles in a drainage pipe network of a mountainous city.Research of Environmental Sciences, 2012, 25(3):322-327(in Chinese)
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    [5] Mansour-Geoffrion M., Dold P.L., Lamarre D., et al.Characterizing hydrocyclone performance for grit removal from wastewater.Minerals Engineering, 2010, 23(4):359-364
    [6] 庞学诗.水力旋流器技术与应用.北京:中国石化出版社, 2010
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    [11] Saengchana K., Nopharatanab A., Songkasriric W.Enhancement of tapioca starch separation with a hydrocyclone:effects of apex diameter, feed concentration, and pressure drop on tapioca starch separation with a hydrocyclone.Chemical Engineering and Processing:Process Intensification, 2009, 48(1):195-202
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    [14] 吉芳英, 胡学斌, 宗述安, 等.一种适用于去除污水处理厂活性污泥中淤沙的分离器:中国, CN201110159013.X.2012-01-04
    [15] 吉芳英, 晏鹏, 范剑平, 等.污泥淤砂分离器的分离效能及影响因素.同济大学学报(自然科学版), 2013, 41(3):42-46 Ji F.Y., Yan P., Fan J.P., et al.Separation performance and factors of grit separation module.Journal of Tongji University(Natural Science), 2013, 41(3):42-46(in Chinese)
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出版历程
  • 收稿日期:  2013-05-09
  • 刊出日期:  2014-03-28
吉芳英, 范剑平, 晏鹏, 颜达超. 污泥淤砂分离器对分离分流污泥性质的影响[J]. 环境工程学报, 2014, 8(4): 1318-1322.
引用本文: 吉芳英, 范剑平, 晏鹏, 颜达超. 污泥淤砂分离器对分离分流污泥性质的影响[J]. 环境工程学报, 2014, 8(4): 1318-1322.
Ji Fangying, Fan Jianping, Yan Peng, Yan Dachao. Effects of sludge-grit separator on properties of separated sludge[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1318-1322.
Citation: Ji Fangying, Fan Jianping, Yan Peng, Yan Dachao. Effects of sludge-grit separator on properties of separated sludge[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1318-1322.

污泥淤砂分离器对分离分流污泥性质的影响

  • 1. 重庆大学三峡库区生态环境教育部重点实验室, 重庆 400045
基金项目:

国家“水体污染控制与治理” 科技重大专项(2009ZX-07315-002-02)

摘要: 为解决我国很多城镇污水厂活性污泥的MLVSS/MLSS普遍偏低,污泥中泥沙淤积严重的问题,根据水力旋流器的分离原理,开发了污泥淤砂分离器,实现污泥中生物基质和淤砂的分离分流,研究污泥淤砂分离器主要结构参数排口比(底流口直径/溢流管直径)对分离分流污泥性质的影响。实验结果表明,排口比为0.4时,污泥经过污泥淤砂分离器后,得到的底流污泥MLVSS/MLSS比原污泥减小了34%,溢流污泥MLVSS/MLSS增大了16.8%,污泥中的生物基质富集在溢流污泥中,淤砂富集在底流污泥中;底流污泥浓度MLSS比原污泥增加了2.6倍,底流污泥SVI和CST分别减小了68%和70%,底流污泥浓缩效果明显,沉降性能和脱水性能大幅提高,有利于底流污泥的处理处置;进一步减小排口比,底流污泥浓缩效果、沉降性能和脱水性能均进一步提高。

English Abstract

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