| 短程硝化的影响因素及其耦合工艺的研究进展 | 
| 郭凯成,刘文如,宋家俊,汪倩,沈耀良 | 
| Research progress on influencing factors of partial nitrification and its coupling process | 
| Kaicheng GUO,Wenru LIU,Jiajun SONG,Qian WANG,Yaoliang SHEN | 
| 图3 PNA工艺流程 | 
| Fig. 3 Technological process of PNA | 
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