%0 Journal Article
%T Investigation of Aerobic Granular Sludge Cultivation by Feed Loading as a Control Strategy<br>进料负荷调控培养好氧颗粒污泥的试验研究
%A SHI Xiao-hui
%A LIU Fang
%A LIU Hong
%A ZHU Jian-rong
%A <br>史晓慧
%A 刘芳
%A 刘虹
%A 竺建荣
%J 环境科学
%D 2007
%I 
%X The key cultivation strategy for aerobic granular sludge cultivation was investigated using feed loading control as a main operational parameter, in an aerobic/anaerobic SBR system. The results showed that the feed loading by influent COD 0~900mg?L-1 could effectively control the growth of sludge. The settling characteristic of inoculated sludge was important for aerobic granules formation, and its SVI 20~50mL?g-1 was favourable to granulation development process. Pure aeration without substrate feeding can greatly improve the settleability of sludge, and stimulate the granulation process. The activated sludge with good settleability could be converted to completely aerobic granular sludge through reducing operational loading in a certain condition. The granulation process occurred in COD feeding 400~500mg?L-1, and sludge concentration 8~10g?L-1.The developed granules were approximately 1.0mm in diameter, SVI 25~35mL?g-1, settling velocity 60m?h-1. The authors proposed that granulation formation process was attributed to a unique operational mode in SBR system, i.e. the famine-feast alternation of substrate in reactor. The control strategy of organic loading by reducing substrate could enhance the variation of famine-feast in substrate, and made the driving force for granulation development.
%K aerobic granular sludge
%K feed loading
%K key cultivation strategy
%K sludge settleability<br>好氧颗粒污泥
%K 进料负荷
%K 关键培养技术
%K 污泥沉降性能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=BC85E858628321E1B1BCA05AAC3EB006&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=94C357A881DFC066&sid=8E4B4A74C5BF6530&eid=31CCC5D591A72A74&journal_id=0250-3301&journal_name=环境科学&referenced_num=10&reference_num=12