| 微波-碱热水解剩余污泥的破解研究 |
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| 引用本文： | 马妮娜,孙德栋,郭思晓,杜艳,马春,郝军,张新欣,薛芒.微波-碱热水解剩余污泥的破解研究[J].大连工业大学学报,2011,30(5):375-378. |
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| 作者姓名： | 马妮娜 孙德栋 郭思晓 杜艳 马春 郝军 张新欣 薛芒 |
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| 作者单位： | 大连工业大学化工与材料学院,辽宁大连,116034 |
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| 基金项目： | 辽宁省教育厅科学研究计划资助项目(2008078) |
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| 摘 要： | 研究了在密闭体系下,采用微波辐照与碱联合处理剩余污泥过程中污泥性质的变化.实验表明,密闭条件下微波辐照与碱联合处理可以加剧污泥的破解,使污泥中的物质释放到液相中.在微波辐照功率为800 W、辐照时间为110 s、每克悬浮固体(SS) NaOH投加量为0.14g时,SS去除率达到46％；处理后污泥中溶解性有机物浓度明显增...
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| 关 键 词： | 污泥 碱 微波 热水解 |
Combined application of microwave irradiation and alkali treatment on sludge reduction in hermetic conditions |
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| MA Ni-na,SUN De-dong,GUO Si-xiao,DU Yan,MA Chun,HAO Jun,ZHANG Xin-xin,XUE Mang.Combined application of microwave irradiation and alkali treatment on sludge reduction in hermetic conditions[J].Journal of Dalian Dalian Polytechnic University,2011,30(5):375-378. |
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| Authors: | MA Ni-na SUN De-dong GUO Si-xiao DU Yan MA Chun HAO Jun ZHANG Xin-xin XUE Mang |
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| Affiliation: | School of Chemistry Engineering and Material,Dalian Polytechnic University,Dalian 116034,China |
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| Abstract: | The microwave irradiation combined with NaOH treatment can accelerate the lysis of sewage sludge.When 800 W microwave irradiation power,microwave irradiation time of 110 s,the NaOH dosage of 0.14 g per gram was used,the sludge dissolving ratio was 46%.The much microbial extracellular polymeric substances(EPS) were decomposed and much intracellular material were released to the liquid phase.The concentration of SCOD was 2 487 mg/L which were about 12 times as compared with the initial one.The concentration of TP,TN was increased by 1.45 times and 1.7 times respectively,the protein contents and the total sugar content was increased by 7.9 times and 0.89 times respectively.After treatment the volatile fatty acids were released to the liquid phase and the pH value was decreased from 10.5 to 9.1. |
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| Keywords: | sludge alkali microwave thermal hydrolysis |
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