CAJ | 학술논문

设计了一个典型的双室微生物燃料电池,并考察了在阳极室加入多孔球形颗粒条件下对人工合成污水产电性能的影响.实验发现,加入多孔球形颗粒后,最高电压从不加颗粒的253 mV提高到280 mV,持续产电时间从5.5 d提高到8 d,COD去除率从78%提高到82.6%.进一步的实验发现,加入多孔球形颗粒后,系统内阻从286 Ω降低到199.4 Ω,最大功率密度从78.6 mW/m~2提高到114.3 mW/m~2.结果表明,微生物易于在多孔球形颗粒上附着和生长,颗粒通过均匀搅拌与阳极表面产生持续碰撞,有利于胞外电子传递到阳极,这一过程大大减小阳极的内阻,增大电池的输出电压进而增大输出功率,从而显著提高电池的产电件能.
설계료일개전형적쌍실미생물연료전지,병고찰료재양겁실가입다공구형과립조건하대인공합성오수산전성능적영향.실험발현,가입다공구형과립후,최고전압종불가과립적253 mV제고도280 mV,지속산전시간종5.5 d제고도8 d,COD거제솔종78%제고도82.6%.진일보적실험발현,가입다공구형과립후,계통내조종286 Ω강저도199.4 Ω,최대공솔밀도종78.6 mW/m~2제고도114.3 mW/m~2.결과표명,미생물역우재다공구형과립상부착화생장,과립통과균균교반여양겁표면산생지속팽당,유리우포외전자전체도양겁,저일과정대대감소양겁적내조,증대전지적수출전압진이증대수출공솔,종이현저제고전지적산전건능.
A typical two-chamber microbial fuel cell was designed in the experiment. When adding porous spherodial particle into the anodic chamber, the influence on the property of power generation of man-made wastewater was obviously. During the experiment, when adding spherodial particle, the maximum voltage could be enhanced from 253 mV to 280 mV, the time of continuous power output generation changed from 5. 5 d to 8 d, the removal rate of COD increased from 78% to 82. 6% . When porous spherodial particle was added into the anodic chamber, the system internal resistance decreased from 286 Ω to 199. 4 Ω, and the maximum power den-sity changed from 78. 6 mW/m~2 to 114. 3 mW/m~2. The result indicated that microorganism was prone to cling and grow on the surface of porous spherodial particle. Through even mixing, the particles collided continuously on the anode, it was good for the extracellular electron transfer to the anode. In this process, the anodic internal resistance decreased , the output voltage generation was promoted, the maximum output power could be promoted , and so, the electrogenesis capacity was prominent improved.