[1]熊鑫溢,付国楷,张玉浩,等.阴极HN-AD菌OTU数量对单室MFC启动的影响[J].中国给水排水,2024,40(15):36-43.
　XIONGXin-yi,FUGuo-kai,ZHANGYu-hao,et al.Effect of Cathodic HN-AD Bacteria OTU Number on Start-up of a Single-chamber Microbial Fuel Cell[J].China Water & Wastewater,2024,40(15):36-43.
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阴极HN-AD菌OTU数量对单室MFC启动的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第15期 页码: 36-43 栏目: 出版日期: 2024-08-01
Title:
Effect of Cathodic HN-AD Bacteria OTU Number on Start-up of a Single-chamber Microbial Fuel Cell
作者:
熊鑫溢1,2， 付国楷1,2， 张玉浩3， 刘武平4， 左洛4
（1.重庆大学 环境与生态学院，重庆 400045；2.重庆大学 三峡库区生态环境教育部重点实验室，重庆 400045；3.南昌市城市规划设计研究总院集团有限公司，江西 南昌 330038；4.中国市政工程西南设计研究总院有限公司，四川 成都 610081）
Author(s):
XIONG　Xin-yi1，2， FU　Guo-kai1，2， ZHANG　Yu-hao3， LIU Wu-ping4， ZUO Luo4
（1. College of Environment and Ecology， Chongqing University， Chongqing 400045， China； 2. Key Laboratory of Three Gorges Reservoir Region’s Eco-Environment ， Chongqing University， Chongqing 400045， China； 3. Nanchang Urban Planning & Design Institute Group Co. Ltd.， Nanchang 330038， China； 4. Southwest Municipal Engineering Design & Research Institute of China， Chengdu 610081， China）
关键词:
高盐榨菜废水;  微生物燃料电池;  异养硝化-好氧反硝化菌;  OTU数量
Keywords:
high salinity mustard wastewater;  microbial fuel cell;  heterotrophic nitrification-aerobic denitrification (HN-AD) bacteria;  OTU number
摘要:
设计了新的方法驯化取自榨菜废水处理厂的活性污泥，获得了异养硝化-好氧反硝化（HN-AD）菌OTU数量分别为1 500和7 500的HW1、HW2两种活性污泥。以高盐榨菜废水为处理对象，设置了HN-AD菌OTU数量分别为0、1 500、7 500的三组实验（S1、S2、S3），对比研究了阴极接种污泥HN-AD菌OTU数量对单室MFC启动的产电及污染物去除性能影响。结果显示，S3实验组启动单室MFC具有较好的脱氮性能，产电结束后NH4+-N及TN的去除率分别达到了（90.13±2.55）%与（90.83±1.46）%。S1实验组的最高输出电压［（0.497 2±0.033 5） V］、最大功率密度（11.59 W/m3）、最大电流密度（56.35 A/m3）、产电周期（116 h）及库仑效率［（16.27±0.47）%］均大于S2和S3，但是前者的NH4+-N及TN去除率分别仅为（6.84±1.09）%与（6.20±0.60）%，均低于后者。HN-AD菌OTU数量对单室MFC启动时的COD去除性能无显著影响。
Abstract:
A novel approach was developed to acclimate activated sludge from a mustard wastewater treatment plant, resulting in the acquisition of HW1 and HW2 activated sludge with heterotrophic nitrification-aerobic denitrification (HN-AD) bacteria OTU numbers of 1 500 and 7 500. Three sets of experiments (S1, S2 and S3) were conducted with different OTU numbers of HN-AD bacteria (0, 1 500 and 7 500) for high salinity mustard tuber wastewater treatment, and the impact of HN-AD bacteria OTU number of the cathode-inoculated sludge on the power generation and pollutants removal performance during the start-up of a single-chamber microbial fuel cell (MFC) was compared. In the S3 experimental group, the single-chamber MFC exhibited superior nitrogen removal efficiency, with NH4+-N and TN removal rates reaching (90.13±2.55)% and (90.83±1.46)%, respectively, upon completion of electricity generation. The maximum output voltage [(0.497 2±0.033 5) V], the maximum power density (11.59 W/m3), the maximum current density (56.35 A/m3), the power generation period (116 h), and the Coulomb efficiency [(16.27±0.47)%] of the S1 experimental group all exceeded those of S2 and S3. However, the NH4+-N and TN removal rates of the former were only (6.84±1.09)% and (6.20±0.60)%, respectively, which were lower than those of the latter. The HN-AD bacteria OTU number did not exert a significant impact on the COD removal efficiency during start-up of the single-chamber MFC.
更新日期/Last Update: 2024-08-01