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Visualizing the macroscale spatial distributions of biofilms in complex flow channels using industrial computed tomography
Biofouling ( IF 2.7 ) Pub Date : 2020-02-07 , DOI: 10.1080/08927014.2020.1728260
Yang Xiao 1 , Barbara Sawicka 2 , Yaoze Liu 3 , Bo Zhou 1 , Peng Hou 1 , Yunkai Li 1
Affiliation  

Abstract The presence of biofilms in enclosed pipelines can lead to numerous deleterious issues. To date, it has been difficult to use optical imaging techniques to monitor the macroscale spatial distributions of biofilms. To address this concern, a combination of industrial computed tomography (ICT) and a contrast agent was explored to noninvasively visualize biofilms in three types of drip irrigation emitters. The results showed that ICT successfully observed and quantified the macroscale spatial distributions of biofilms. The complex hydrodynamic characteristics in the emitter channels affected the local distributions of biofilms. Biofilms were mainly attached to the lateral and medial faces and biomass decreased along the flow directions. Based on the distributions of biofilms, some emitter structural design defects were further diagnosed. Applying ICT in combination with the contrast agent could potentially provide a visual and effective way to reveal the formation mechanisms of biofilms and to optimize flow channel structures to avoid biofilm accumulations.

中文翻译:

使用工业计算机断层扫描可视化复杂流动通道中生物膜的宏观空间分布

摘要 封闭管道中生物膜的存在会导致许多有害问题。迄今为止,很难使用光学成像技术来监测生物膜的宏观空间分布。为了解决这个问题,我们探索了工业计算机断层扫描 (ICT) 和造影剂的组合,以非侵入性地可视化三种类型的滴灌发射器中的生物膜。结果表明,ICT成功地观察和量化了生物膜的宏观空间分布。发射器通道中复杂的流体动力学特性影响了生物膜的局部分布。生物膜主要附着在外侧和内侧表面,生物量沿流动方向减少。根据生物膜的分布,进一步诊断了一些发射器结构设计缺陷。
更新日期:2020-02-07
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