| 城市污水污泥超声波预处理的研究 |
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| 引用本文： | 童文锦,孙水裕,郑莉,姚炜婷.城市污水污泥超声波预处理的研究[J].环境科学与技术,2010,33(5). |
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| 作者姓名： | 童文锦 孙水裕 郑莉 姚炜婷 |
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| 作者单位： | 广东工业大学环境科学与工程学院,广东,广州,510006 |
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| 基金项目： | 广东省教育部产学研合作专项项目资金 |
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| 摘 要： | 文章通过分析污泥耗氧率(SOUR)和破解率(DDCOD)的变化,研究了浓度为9.5g/L的生活污泥在频率为28kHz的超声波下,不同超声波声能密度和超声时间作用对污泥预处理效果的影响。试验结果表明,在适当的声能密度和超声时间下,超声波预处理可以明显提高污泥破解率,同时提高污泥的生物活性,试验结果为超声波预处理与污泥处理工艺联用以提高污泥减量化效率提供了依据。
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| 关 键 词： | 污泥破解 超声波 预处理 |
Ultrasonic Pretreatment of Municipal Sewage Sludge |
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| TONG Wen-jin,SUN Shui-yu,ZHENG Li,YAO Wei-ting.Ultrasonic Pretreatment of Municipal Sewage Sludge[J].Environmental Science and Technology,2010,33(5). |
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| Authors: | TONG Wen-jin SUN Shui-yu ZHENG Li YAO Wei-ting |
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| Abstract: | The impact of ultrasonic density and time on sewage sludge pretreatment efficiency has been studied at certain ultrasonic frequency(28kHz) and sludge concentrafion(9.Sg/L). Both the sludge oxygen uptake rate(SOUR) and the degree of disintegration (DDCOD) have been analyzed, and used to evaluate the sludge pretreatment efficiency. The results showed that disintegration degree and sludge activity were improved significantly under appropriate ultrasound treatment condition. It is possible the combination of ultrasound sludge pretreatment and sludge treatment process will increase the sludge reduction efficiency. |
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| Keywords: | sludge disintegration ultrasound pretreatment |
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