Institute of Biofilm Technology, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, 201306, China.
Environ Sci Pollut Res Int. 2018 May;25(13):12528-12537. doi: 10.1007/s11356-018-1520-6. Epub 2018 Feb 20.
This study aims to reveal the effects of earthworms (Eisenia fetida) on bacterial profiles during the vermicomposting process of sewage sludge and cattle dung with the high-throughput sequencing technology. The earthworms could accelerate organic degradation and improve the stabilization process. Moreover, the addition of earthworms not only affected the bacterial numbers, but also increased the bacterial community diversity. The activity of earthworms had significant effects on the bacterial community structure as the bacterial community was clearly different between the vermicomposting and the control treatment. Furthermore, the earthworms affected the physical and chemical properties of substrates, thus promoting the growth of some microorganisms, such as Flavobacteria, Acidbacteria, and Planctomycetes. Earthworms largely inhibited the growth of various human pathogenic bacteria. In summary, earthworms significantly affected the bacterial community in vermicomposting and it could be applied as an authentically effective technique for the stabilization of organic wastes.
本研究旨在利用高通量测序技术揭示蚯蚓（赤子爱胜蚓）在污水污泥和牛粪堆肥过程中对细菌分布的影响。蚯蚓可以加速有机降解并改善稳定化过程。此外，添加蚯蚓不仅会影响细菌数量，还会增加细菌群落多样性。蚯蚓的活动对细菌群落结构有显著影响，因为堆肥和对照处理之间的细菌群落明显不同。此外，蚯蚓影响了基质的物理和化学性质，从而促进了一些微生物的生长，如黄杆菌、酸杆菌和浮霉菌门。蚯蚓还极大地抑制了各种人类致病菌的生长。总之，蚯蚓显著影响了堆肥中的细菌群落，可作为一种真正有效的有机废物稳定化技术。
