|本期目录/Table of Contents|

[1]陈国科,黄钧,毕京芳,等.好氧颗粒污泥耐受高碳氮负荷过程中的群体感应[J].应用与环境生物学报,2014,20(01):73-79.[doi:10.3724/SP.J.1145.2014.00073]
 CHEN Guoke,HUANG Jun,BI Jingfang,et al.Quorum sensing of aerobic granular sludge tolerating high carbon and nitrogen loads[J].Chinese Journal of Applied & Environmental Biology,2014,20(01):73-79.[doi:10.3724/SP.J.1145.2014.00073]
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好氧颗粒污泥耐受高碳氮负荷过程中的群体感应()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
20卷
期数:
2014年01期
页码:
73-79
栏目:
研究论文
出版日期:
2014-02-25

文章信息/Info

Title:
Quorum sensing of aerobic granular sludge tolerating high carbon and nitrogen loads
作者:
陈国科黄钧毕京芳关梦龙
1中国科学院成都生物研究所,中国科学院环境与应用微生物重点实验室,四川省环境微生物重点实验室 成都 610041 2中国科学院大学 北京 100049
Author(s):
CHEN Guoke HUANG Jun BI Jingfang GUAN Menglong
1 Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China 2 University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
好氧颗粒污泥高碳氮负荷群体感应AI-2种间交流
Keywords:
aerobic granular sludge high carbon and nitrogen loads quorum sensing autoinducer-2 interspecific communication
分类号:
X172 : X703
DOI:
10.3724/SP.J.1145.2014.00073
文献标志码:
A
摘要:
为了探究好氧颗粒污泥耐受高负荷碳氮的生物学机制,对比分析了不同负荷条件下好氧颗粒对污染物的去除、形体结构和群体感应现象. 结果表明,好氧颗粒污泥具有同时耐受高碳氮负荷的能力,当进水COD负荷为12.9 kg m-3 d-1时去除率为90%以上,NH4+-N负荷为0.455 kg m-3 d-1时去除率在80%以上. 随着负荷的提高,颗粒的粒径不断减小,这可能增强颗粒的传质传氧作用. 在进水负荷COD 8.9-10.9 kg m-3 d-1、NH4+-N 0.355-0.455 kg m-3 d-1时,AI-2活性较强,微生物之间相互交流比较活跃,并且保持较好的COD和NH4+-N去除效果. 好氧颗粒污泥内部的AI-2活性高于出水溶液. 研究表明,群体感应可能在好氧颗粒污泥同时耐受高碳氮负荷中发挥着重要的作用.
Abstract:
In order to investigate the biological mechanism of aerobic granular sludge tolerating high carbon and nitrogen loads, pollutants removal, physical structure and the quorum sensing phenomenon of aerobic granules in different load conditions were analyzed and compared. The aerobic granular sludge showed excellent ability to resist high carbon and nitrogen loads simultaneously. The removal efficiencies of COD and NH4+-N were over 90% and 80% respectively, while the loading rates were 12.9 kg m-3 d-1 for COD and 0.455 kg m-3 d-1 for NH4+-N. Granule particle size decreased with increasing loads, which could enhance transference of nutrient and oxygen in the granule. In the load phase of COD 8.9-10.9 kg m-3 d-1 and NH4+-N 0.355 - 0.455 kg m-3 d-1 the AI-2 activity was strong, resulting in much more active communication among microorganisms. Furthermore, excellent COD and NH4+-N removal efficiency was maintained. The activity of AI-2 in AGS was much more than that in effluent. This research showed that the quorum sensing involved in aerobic granular sludge might play an important role in endurance of simultaneous high carbon and nitrogen loads.

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备注/Memo

备注/Memo:
中国科学院环境与应用微生物重点实验室开放基金(KLCAS -2011-02和KLCAS-2012-04)资助
更新日期/Last Update: 2014-03-06