%0 Journal Article
%T Operation of three parallel AN/AO processes to enrich denitrifying phosphorus removing bacteria for low strength wastewater treatment
%A XIA Si-qing
%A LIU Hong-bo
%A <br>XIA Si-qing
%A LIU Hong-bo
%J 环境科学学报(英文版)
%D 2006
%I 
%X Three parallel anaerobic-anoxic/anaerobic-aerobic (AN/AO) processes were developed to enrich denitrifying phosphorus removal bacteria (DPB) for low strength wastewater treatment. The main body of the parallel AN/AO process consists of an AN (anaerobic-anoxic) process and an AO (anaerobic-aerobic) process. In the AO process, the common phosphorus accumulating organisms (PAOs) was dominate, while in the AN process, DPB was dominate. The volume of anaerobic zone(V(ana)):anoxic zone(V(ano)): aerobic zone (V(aer)) for the parallel AN/AO process is 1:1:1 in contrast with a V(ana):V(aer) and V(ano):V(aer) of 1:2 and 1:4 for a traditional biological nutrient removal process (BNR). Process 3 excels in the 3 processes on the basis of COD, TN and TP removal. For 4 month operation, the effluent COD concentration of process 3 did not exceed 60 mg/L; the effluent TN concentration of process 3 was lower than 15 mg/L; and the effluent TP concentration of process 3 was lower than 1 mg/L.
%K parallel AN/AO process
%K denitrifying phosphorus removing bacteria (DPB)
%K low strength wastewater
%K biological nutrient removal (BNR)<br>细菌
%K 废水处理
%K 生物
%K 脱硝
%K 需氧菌
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=4BC9EBCF3C99EBFE0A098BB8E279BB68&yid=37904DC365DD7266&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=DDEED1BDDBFAA8A7&eid=BEE722AB5028E81F&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=9