| 粉煤灰对市政污泥脱水效果的研究 |
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| 引用本文： | 王睿韬,汪澜,马忠诚.粉煤灰对市政污泥脱水效果的研究[J].水泥,2012(10):6-9. |
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| 作者姓名： | 王睿韬 汪澜 马忠诚 |
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| 作者单位： | 中国建筑材料科学研究总院 绿色建筑材料国家重点实验室,北京,100024 |
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| 摘 要： | 从比阻和含水率两方面探讨了A型粉煤灰和B型粉煤灰对市政污泥脱水效果的影响.结果表明,B型粉煤灰对污泥的脱水效果优于A型粉煤灰,B型粗粉煤灰和细粉煤灰的投加量分别在30g/100mL污泥和50g/100mL污泥时,污泥的脱水效果最好.粉煤灰的掺入能够很好地分散污泥颗粒,增加滤饼的孔隙率,使水分更容易从滤饼中脱离出来.
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| 关 键 词： | 粉煤灰 市政污泥 脱水效果 |
Effect of fly ash on dehydration effect of municipal sludge |
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| WANG Rui-tao,WANG Lan,MA Zhong-cheng.Effect of fly ash on dehydration effect of municipal sludge[J].Cement,2012(10):6-9. |
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| Authors: | WANG Rui-tao WANG Lan MA Zhong-cheng |
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| Affiliation: | State Key Laboratory of Green Building Materials,China Building Materials Academy,Beijing 100024,China |
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| Abstract: | The effect of two types of fly ash （expressed as type A and type B） on dehydration effect of municipal sludge was discussed from aspects of specific resistance to filtration and water content. The results indicated that the dehydration effect was better when using type B fly ash. The optimal dosage for coarse powdered and fine powdered fly ash of type B was 30g/ 100mL sludge and 50g/100mL sludge respectively. The addition of fly ash could effectively disperse the sludge particles, so as to increase the porosity of the filter cake and make it easy for the filter cake to dehydrate. |
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| Keywords: | fly ash municipal sludge dehydration effect |
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