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《Environmental Science》 2009-04
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Gradient Elevation of Temperature Startup Experiment of Thermophilic ASBR Treating Thermal-Hydrolyzed Sewage Sludge

OUYANG Er-ming~(1,2),WANG Wei~1,LONG Neng~3,LI Huai~4 (1.Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China;2.School of Civil Engineering and Architecture,Nanchang University,Nanchang 330031,China;3.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China;4.Department of Environmental Science and Engineering,Chang'an University,Xi'an 710054, China)  
Startup experiment was conducted for thermophilic anaerobic sequencing batch reactor(ASBR) treating thermal-hydrolyzed sewage sludge using the strategy of the step-wise temperature increment: 35℃→40℃→47℃→53℃.The results showed that the first step-increase(from 35℃ to 40℃) and final step-increase(from 47℃ to 53℃) had only a slight effect on the digestion process.The second step-increase(from 40℃ to 47℃) resulted in a severe disturbance: the biogas production,methane content,COD_(effluent) and microorganism all have strong disturbance.At the steady stage of thermophilic ASBR treating thermal-hydrolyzed sewage sludge,the average daily gas production,methane content,specific methane production(CH_4/COD_(influent)),TCOD removal rate and SCOD removal rate were 2.038(L/d),72.0%,188.8(mL/g),63.8%,83.3% respectively.The results of SEM and DGGE indicated that the dominant species are obviously different at early stage and steady stage.
【Fund】: 国家高技术研究发展计划(863)项目(2006AA06Z384)
【CateGory Index】: X703
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【Citations】
Chinese Journal Full-text Database 4 Hits
1 WANG Zhi-jun, WANG Wei (Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China);Enhancement of Sewage Sludge Anaerobic Digestibility by Thermal Hydrolysis Pretreatment[J];Environmental Science;2005-01
2 WANG Zhi-jun 1, 2, WANG Wei1, Gao Dian-sen2; LI Fen-fang3 (1. Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China; 2. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China);Anaerobic Sequencing Batch Reactor for the Digestion of Thermo-Hydrolyzed Sludge Under Thermophilic and Mesophilic Conditions[J];Environmental Science;2005-02
3 WANG Zhi-jun~(1,3),WANG Wei~2,ZHANG Xi-hui~1(1.Research Center for Environmental Engineering & Management,Shenzhen Graduate School,Tsinghua University,Shenzhen 518055,China;2.Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China;3.Department of Military Real Estate Management and Environmental Engineering,Logistical Engineering University of PLA,Chongqing 400016,China);Characteristics of Anaerobic Sequencing Batch Reactor for the Treatment of High-Solids-Content Waste[J];Environmental Science;2006-06
4 WANG Zhi-jun1,2, WANG Wei1* (1.Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China ; 2.Department of Real Estate Management and Environmental Engineering, Logistic Engineering University, Chongqing 400016, China).;Thermal hydrolysis test of surplus sludge.[J];China Environmental Science;2005-S1
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