文档介绍：,
第 6 卷第 8 期环境工程学报 Vol . 6 No . 8
2 0 1 2 年 8 月 Chinese Journal of Environmental Engineering Aug . 2 0 1 2
城市污水处理厂剩余污泥热值测定
方法优化研究
周利郭雪松肖本益刘俊新*
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中国科学院生态环境研究中心北京 100085
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摘要目前的城市污水处理厂剩余污泥热值的测定主要参考煤热值的测定方法。根据污泥的特性对热值测定过
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程中污泥的干燥方式、助燃剂的影响和热值校正计算 3 个方面进行了优化研究。结果表明冷冻干燥- 50℃能够避免污
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泥有机物的挥发从而精确地测定剩余污泥的热值对于有机物含量较高的污泥 VS /TS > 0. 57 不添加助燃剂也能准确
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测定污泥的热值通过测定氧弹洗液中硫酸和硝酸的含量来计算热值校正从而准确得到污泥的热值。
关键词剩余污泥热值干燥方式助燃剂热值校正
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中图分类号 X703 文献标识码 A 文章编号 1673-9108 2012 08-2805-04
Optimization study on the caloric value determination of excess sludge
from municipal wastewater treatment plants
Zhou Li Guo Xuesong Xiao Benyi Liu Junxin
( , , , )
Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
Abstract The caloric value of excess sludge from municipal wastewater treatment plants was currently de-
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termined by the standard method which applied in the determination of coal’s caloric value. Drying modes
effect bustion aid and thermo-chemical corrections in the measure process were optimized according to the
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excess sludge characteristics. The results showed that freeze-drying mode drying under - 50℃ could provide
precise caloric value of excess sewage sludge due to preventing the volatilization of anic materials.
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Without bustion aid the caloric value of sewage sludge with anic matte