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Start‐up strategy and bacterial community analysis of SNAD process for treating anaerobic digester liquor of swine wastewater (ADLSW) in a continuous‐flow biofilm reactor
Water and Environment Journal ( IF 1.7 ) Pub Date : 2020-03-20 , DOI: 10.1111/wej.12568
Xin Xin 1 , Qin Liu 1 , David Werner 2 , Hang Lu 1 , Jiawei Qin 1
Affiliation  

Simultaneous partial nitrification, anammox and denitrification (SNAD) process for treating anaerobic digester liquor of swine wastewater (ADLSW) was achieved successfully in a continuous ‐flow biofilm reactor by gradually increasing the influent ammonium ( urn:x-wiley:17476585:media:wej12568:wej12568-math-0001) concentration whilst controlling the low dissolved oxygen (DO) concentration. After 180 days of operation, the average removal efficiencies of urn:x-wiley:17476585:media:wej12568:wej12568-math-0002, total nitrogen (TN) and COD were 61.59, 55.76 and 75.21% respectively. Also, the average conversion efficiency urn:x-wiley:17476585:media:wej12568:wej12568-math-0003 of total effluent nitrite and nitrate production to ammonia consumption was kept at about 0.053 at the last stage (days 181‐218). Anaerolineaceae (26.92%), Candidatus Brocadia (3.96%), Candidatus‐Kuenenia (4.69%), Armatimonadetes‐norank (4.25%), Limnobacter (4.15%), Xanthomonadaceae (3.07%) and Ignavibacterium (2.87%) were the dominant genera in the SNAD system for treating ADLSW. The quantitative polymerase chain reaction (qPCR) results further confirmed that the co‐existence and enrichment of anammox bacteria, ammonium oxidising bacteria (AOB) and denitrifying bacteria (HB) in the bioreactor.

中文翻译:

SNAD工艺在连续流式生物膜反应器中处理猪废水厌氧消化液(ADLSW)的启动策略和细菌群落分析

通过连续增加生物膜反应器中氨的缸:x-wiley:17476585:media:wej12568:wej12568-math-0001浓度,同时控制低溶解氧(DO),在连续流生物膜反应器中成功实现了同时部分硝化,厌氧和反硝化(SNAD)工艺处理猪废水厌氧消化液(ADLSW )。浓度。运转180天后缸:x-wiley:17476585:media:wej12568:wej12568-math-0002,总氮(TN)和COD的平均去除率分别为61.59%,55.76和75.21%。同样,骨灰盒:x-wiley:17476585:media:wej12568:wej12568-math-0003在最后阶段(181-218天),总废水亚硝酸盐和硝酸盐生产至氨消耗的平均转化效率保持在约0.053。厌氧科(26.92%)假丝酵母Candidatus Brocadia)(3.96%),假丝酵母Candidatus-Kuenenia)(4.69%),Armatimonadetes-norank(4.25%),Limnobacter(4.15%),Xanthomonadaceae(3.07%)和Ignavibacterium(2.87%)是SNAD系统中治疗ADLSW的主要属。定量聚合酶链反应(qPCR)结果进一步证实了生物反应器中厌氧氨氧化细菌,铵氧化细菌(AOB)和反硝化细菌(HB)的共存和富集。
更新日期:2020-03-20
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