| 臭氧氧化分解污泥的试验研究 |
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| 引用本文： | 王琳,孙德栋.臭氧氧化分解污泥的试验研究[J].中国海洋大学学报(自然科学版),2005,35(1):83-86. |
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| 作者姓名： | 王琳 孙德栋 |
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| 作者单位： | 中国海洋大学环境科学与工程学院,山东,青岛,266003 |
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| 摘 要： | 臭氧氧化能有效地分解污泥，为对臭氧氧化后污泥性质的变化进行系统的研究，本文采用接触反应柱对污泥在臭氧氧化过程中性质的变化进行了研究。结果表明，在臭氧投量为0．1gO3／gSS时，污泥中的溶解性COD浓度从256mg／L增加到2126mg／L，污泥沉降速度由初始的0．19cm／min增至1．43cm／min，滤饼的含水率由初始的76．6％降至70．6％。臭氧氧化后污泥絮体被分解，产生大量悬浮粒子，使污泥上清液的浊度和悬浮物浓度增加。臭氧氧化处理后污泥的过滤性能恶化。污泥比阻增大。
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| 关 键 词： | 臭氧氧化 污泥分解 脱水性能 比阻 |
| 文章编号： | 1672-5174(2005)01-083-04 |
| 修稿时间： | 2004年11月29 |
The Study on Sludge Ozonation |
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| WANG Lin,SUN De-dong.The Study on Sludge Ozonation[J].Periodical of Ocean University of China,2005,35(1):83-86. |
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| Authors: | WANG Lin SUN De-dong |
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| Abstract: | Ozonation can disperse sludge effectively; therefore a lab scale study on sludge ozonation is carried out in a contact reaction column. The results indicated that at 0.1gO 3/gSS of ozone addition, the soluble COD increased from 256mg/l to 2 126mg/L and the ZSV(Zone settling velocity) increased from 0.19cm/min to 1.43cm/min; the moisture content of cake decreased from 76.6% to 70.6%. The sludge flocs were dispersed after ozonation and a large amount of suspended micro-particles were produced simultaneously, the turbidity and the concentration of suspended solids increased in the supernatant. The filterability of sludge deteriorated after ozonation and the SRF(specific resistance to filtration) of sludge increased. |
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| Keywords: | ozonation sludge disintegration dewaterability specific resistance |
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