School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, 510006 Guangzhou, PR China.
School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, 510006 Guangzhou, PR China.
Bioresour Technol. 2017 Nov;244(Pt 1):40-47. doi: 10.1016/j.biortech.2017.07.132. Epub 2017 Jul 25.
The presented investigation focused on exploring the characteristics of the biofilm formed on a novel semi-suspended bio-carrier and revealing their variation during the whole growing cycle. This used semi-suspended bio-carrier was designed to be a spindle shape, and then fabricated by using a 3D printing technique. Results indicated the bio-carrier provided a suitable environment for the attachment of diverse microorganisms. During the experimental period lasted for 45days, the biofilm quickly attached on the surface of the bio-carrier and grew to maturity, but its characteristics, including the chemical compositions, adhesion force, surface roughness, structure of microbial communities, varied continuously along with the operational time, which greatly influenced the performance of the bioreactor. The shape and structure of bio-carrier, and the shearing force caused by the aeration are important factors that influence the microbial community and its structure, and also heavily affect the formation and growth of biofilm.
本研究旨在探索新型半悬浮生物载体上形成的生物膜的特性，并揭示其在整个生长周期内的变化。这种半悬浮生物载体设计为纺锤形，然后通过 3D 打印技术制造而成。结果表明，生物载体为各种微生物的附着提供了适宜的环境。在为期 45 天的实验期间，生物膜迅速附着在生物载体表面并生长成熟，但它的特性，包括化学成分、附着力、表面粗糙度、微生物群落结构，随着运行时间的不断变化，这极大地影响了生物反应器的性能。生物载体的形状和结构，以及曝气产生的剪切力是影响微生物群落及其结构的重要因素，也严重影响生物膜的形成和生长。
