产酸作用
厌氧消化
化学
醋酸
分解
有机质
无氧运动
多糖
甲烷
消化(炼金术)
纳米颗粒
降级(电信)
化学工程
核化学
食品科学
色谱法
生物化学
有机化学
生物
工程类
电信
生理学
计算机科学
作者
Lei Gong,Xiaoqi Yang,Xiaogang You,Jin Wang,Jun Zhou,Ying Zhou,Jianhui Yang
标识
DOI:10.1080/09593330.2019.1673829
摘要
With their wide application, some nanomaterials entering into the environment and made effects in many ways. Different concentrations of Fe3O4 nanoparticles (NPs) were added (0, 100, 200, 400 and 600 mg/L) in this study, the changes of substance in three stages of anaerobic digestion (AD) were explored, the optimal dosage of Fe3O4 NPs was finally found. The results showed that the 200 mg/L Fe3O4 NPs could better promote the decomposition of organic matter than the other groups, the protein and polysaccharide degradation rate reached to 99.75% and 83.14%, respectively. In the acidogenesis stage, the acetic acid concentration reached up to 692.88 mg/L, increased by 31.8% compared with the control group. Fe3O4 NPs had also been proved to increase VFAs, finally made the methane content reach to 92.22%. The variation of coenzyme F420 had also been described in this research, the highest value was 1.83 Umol/g VS. These results showed that the different concentrations of Fe3O4 NPs had different effects on anaerobic digestion.
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