| 电石渣和石灰对污泥的改性效果比较 |
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| 引用本文： | 李春萍.电石渣和石灰对污泥的改性效果比较[J].环境工程,2011,29(5):117-119,126. |
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| 作者姓名： | 李春萍 |
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| 作者单位： | 北京建筑材料科学研究总院固废资源化利用与节能建材国家重点实验室,北京,100041 |
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| 基金项目： | 北京金隅集团重点项目-污泥常温强化半干化成套技术研究 |
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| 摘 要： | 在含水率为86.1%的脱水污泥中分别添加10%的电石渣和工业生石灰,其搅拌30min后及自然晾晒24,48,72,96,120 h后的含水率持续线性下降,自然晾晒120 h后可达到填埋标准;添加电石渣及石灰的污泥,其单位质量水分蒸发速率与原污泥有本质差异;两种改性剂均可使污泥比阻降低50%左右;经板框压滤机压滤出的泥饼...
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| 关 键 词： | 污泥 含水率 差热分析 比阻 压滤 |
COMPARISON OF SEWAGE SLUDGE MODIFICATION EFFECT BY ADDING CALCIUM CARBIDE OR LIME |
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| Li Chunping.COMPARISON OF SEWAGE SLUDGE MODIFICATION EFFECT BY ADDING CALCIUM CARBIDE OR LIME[J].Environmental Engineering,2011,29(5):117-119,126. |
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| Authors: | Li Chunping |
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| Institution: | Li Chunping(State Key Lab of Solid Waste Resources Utilization and Energy Saving Building Materials,Beijing Building Materirals Academy of Science Research,Beijing 100041,China) |
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| Abstract: | After adding 10% of calcium carbide and industrial lime into dewatered sludge with 86.1% moisture content,changes of moisture content after 30 min mixing,24~120 h natural drying,evaporation rate,sludge specific resistance and sludge filter press were assayed,respectively.The results show that: adding calcium carbide and industrial lime into sludge,moisture content showed a linear decline to achieve a rapid drying purposes either after 30 min mixing or during 24~120 h natural drying.Sludge mixed with calcium... |
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| Keywords: | sewage sludge moisture content TG-DTA specific resistance filter press |
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