摘要
进行了高温、中温厌氧序批式反应器 (ASBR)处理热水解污泥的对比试验研究 .在HRT =10d ,总COD(TCOD)容积负荷为 5. 4 2kg/ (m3 ·d)的条件下 ,高温、中温ASBR的TCOD去除率分别为 5 6. 2 0 %、6 1. 6 6 % ,污泥COD的产气率 (CH4)分别为199、2 19mL/ g .ASBR能有效积累污泥悬浮固体从而保持较高的固体停留时间 (SRT) ,高温、中温ASBR的平均SRT分别为30、37d .同中温ASBR比较 ,高温ASBR的微生物形态单一、种类少和产甲烷活性较低 ,因此高温ASBR的处理效率和产气率较中温低 .
Parallel laboratory experiments were conducted to investigate the performance of thermophilic and mesophilic anaerobic sequencing batch reactor (ASBR) for the digestion of thermo-hydrolyzed sewage sludge. The average total COD (TCOD) removal rates of thermophilic, mesophilic ASBR at 10-day HRT and 5.42 kg/(m3·d) TCOD loading rate were 56.20% and 61.66%, and the biogas production rates of TCOD in feeding sludge were 199 and 219 mL/g, respectively. ASBR has the unique capability of maintaining high-solid content and keeping a high solid retention time (SRT). The average SRT of thermophilic, mesophilic ASBR were 30 and 37d,respectively. Compared to mesophilic ASBR, thermophilic ASBR show considerably fewer microbial morphologies and lower methane-production, which might result in a relatively lower treatment efficiency in thermophilic ASBR than that in mesophilic ASBR.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2005年第2期88-92,共5页
Environmental Science
基金
国家高技术研究发展计划 (863计划 )项目(2 0 0 2AA64 40 10 )
