Chemical Geology, Journal Year: 2024, Volume and Issue: unknown, P. 122577 - 122577
Published: Dec. 1, 2024
Language: Английский
Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112539 - 112539
Published: March 18, 2024
Language: Английский
Citations
2
ACS ES&T Engineering, Journal Year: 2024, Volume and Issue: 4(6), P. 1378 - 1390
Published: April 12, 2024
The integration of microbial electrochemical technologies (METs) and conventional wastewater treatment units has become a promising pathway to enhance energy recovery from plants, but how the communities these two systems interact with affect each other remains unknown. This study investigated performance diversity under community coalescence by introducing activated sludge (AS) into typical electrolysis cells (MECs). When coupled AS, active surface area (ECSA) anode significantly increased 1.67 2.97 mF/m2, which could be ascribed retention porous flocs on electrode surface. However, anodic Coulombic efficiency was stable introduction, even stronger electron transfer capacity. mcrA gene copies methanogens indicate enhanced competition in allocation methane rather than anode, thereby maintaining efficiency. cathodic were improving hydrogen production 0.018 ± 0.011 0.161 0.136 m3/m3·d, likely due lower methanogenesis activity that promoted instead methane. Isotope verification indicated acetoclastic predominant for throughout operation, temporary increase hydrogenotrophic observed response (αc = 0.44), indicating inhibited. Overall, methanogenic more vulnerable during METs traditional technology; specifically, shocked coalescence. These findings provide an insight perspective.
Language: Английский
Citations
2
Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114831 - 114831
Published: Nov. 17, 2024
Language: Английский
Citations
2
Scientia Sinica Technologica, Journal Year: 2024, Volume and Issue: unknown
Published: May 1, 2024
随着工农业的不断发展, 农田土壤中颗粒态新污染物(Particle emerging contaminants, PECs)的数量持续增加. PECs因其粒径和界面效应发生团聚-解团聚, 吸附-解吸, 溶解-重塑等迁移转化行为, 影响其环境归趋与健康风险. PECs的独特粒径效应, 使其不仅对生物体造成化学损伤, 还会对生物体产生物理损伤, 破坏生物体的细胞膜结构, 导致氧化胁迫. 此外, PECs还具有缓释特性, 通过溶解和生物降解等过程缓慢释放出有害物质, 产生长期胁迫. 根际作为土壤中物质进入植物的重要门户, 也是PECs在农田土壤中发生生物地球化学过程的关键微域. 本综述指出, PECs不仅可以直接被根系吸收和吸附, 还会刺激低分子量有机酸等根系分泌物的释放, 驱动根际微生物和土壤动物的群落组成与功能变化, 导致根际效应; 根际特殊的理化性质使得PECs的根际环境行为不同于非根际, PECs暴露促进还原态低分子量有机酸类根系分泌物的释放, 促进PECs的还原、重塑和颗粒分散; 根系分泌物促使根际成为土壤微生物和土壤动物的活动热区, 两者活跃的生理行为进一步增加了PECs的根际迁移与转化, 增加PECs的生物有效性和暴露风险. 明晰PECs的根际赋存与转化特征, 为其环境健康风险评估和原位植物修复提供理论基础.
Citations
0
Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 477, P. 135251 - 135251
Published: July 18, 2024
Language: Английский
Citations
0
Research, Journal Year: 2024, Volume and Issue: 7
Published: Jan. 1, 2024
Redox cycling of iron plays a pivotal role in both nutrient acquisition by living organisms and the geochemical elements aquatic environments. In nature, is mediated microbial Fe(II)-oxidizers Fe(III)-reducers or through interplay biotic abiotic transformation processes. Here, we unveil specific process driven one single phototrophic species, Rhodobacter ferrooxidans SW2. It exhibits capability to reduce Fe(III) during bacterial cultivation. A c -type cytochrome identified with Fe(III)-reducing activity, implying linkage reduction electron transport system. R. SW2 can mediate redox transformation, depending on availability light and/or organic substrates. Iron anoxygenic photoferrotrophs proposed exist worldwide modern ancient Our work not only enriches theoretical basis nature but also implies multiple roles
Language: Английский
Citations
0
Frontiers of Environmental Science & Engineering, Journal Year: 2024, Volume and Issue: 19(1)
Published: Oct. 26, 2024
Language: Английский
Citations
0
Chemical Geology, Journal Year: 2024, Volume and Issue: unknown, P. 122577 - 122577
Published: Dec. 1, 2024
Language: Английский
Citations
0