Effective treatment of night soil using anaerobic sequencing batch reactor (ASBR)
Effective treatment of night soil using anaerobic sequencing batch reactor (ASBR)
复制标题
使用厌氧序批式反应器 (ASBR) 有效处理粪便
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Jong Hwa Lee
中科院分区：
文献类型：
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作者：
J. Park;J. Hur;Bu;Jong Hwa Lee
采用厌氧序批式反应器（ASBR）处理粪便，研究了ASBR工艺处理粪便的性能。在35 ℃下，在等效水力停留时间（HRT）为10天，等效负荷率为2.6 kgVS m-3天-1（3.1 kgCOD m-3天，-1）的条件下对反应器进行了评价。在HRT为10天的情况下，ASBR可以消化粪便，尽管氨氮和可沉降固体的浓度很高。ASBR反应器中固体物迅速积累，其浓度是完全混合对照反应器中的2.3-2.4倍。与对照反应器相比，在ASBR中观察到产气量增加。与对照运行相比，ASBR的等效日产气量平均增加205-220%。反应周期/增稠周期（R/T）比为1的ASBR产气量和有机物去除率略高于R/T比为3的ASBR。以上清液计，ASBR的挥发性固体去除率比对照反应器高12-14%。因此，ASBR是一种稳定、有效的处理高浓度可沉性有机物和氨氮的粪便的工艺。
Laboratory experiments were conducted to investigate the performance of the anaerobic sequencing batch reactor (ASBR) process for night soil treatment. The reactors were evaluated at an equivalent hydraulic retention time (HRT) of 10 days with an equivalent loading rate of 2.6 kgVS m-3day-1 (3.1 kgCOD m-3day,-1) at 35 ‡C. Digestion of night soil was possible using the ASBR at an HRT of 10 days in spite of high concentration of ammonia nitrogen and settleable solids. Solids were accumulated rapidly in the ASBRs, and their concentrations were 2.3-2.4 times higher than that in a completely mixed control reactor. Increases in gas production were observed in the ASBRs compared with the control reactor. Average increases in equivalent daily gas production from the ASBRs were 205-220% compared with that from the control run. The ASBR with reaction period/thickening period (R/T) ratio of 1 showed a little higher gas production and organic removal efficiency than that with R/T ratio of 3. Volatile solids removal based on supernatant of the ASBRs was 12–14% higher than that of control reactor. Thus, the ASBR was a stable and effective process for the treatment of night soil having high concentration of settleable organics and ammonia nitrogen.