2018/07/09 by Na Liu, Tormod Skauge, Liu, Na +18 · 1 citation
Biochemistry, Genetics and Molecular Biology · Engineering · Materials Science · Medicine · Physics and Astronomy · #Biological Physics (physics.bio-ph) #Cell Behavior (q-bio.CB) #Drilling and Well Engineering #FOS: Biological sciences #FOS: Physical sciences #Periodontal Regeneration and Treatments #Surface Modification and Superhydrophobicity #physics.bio-ph #q-bio.CB
paper · pdf · doi:10.48550/arxiv.1807.03241
14 pages, 5 figures
arxiv created 2018/07/09 · openalex publication_date 2018/07/09 · arxiv updated 2018/07/10 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
Biofilm accumulation in the porous media can cause plugging and change many physical properties of porous media. Targeted bioplugging may have significant applications for industrial processes. A deeper understanding of the relative influences of hydrodynamic conditions including flow velocity and nutrient concentration, on biofilm growth and detachment is necessary to plan and analyze bioplugging experiments and field trials. The experimental results by means of microscopic imaging over a T-shape microchannel show that increase in fluid velocity could facilitate biofilm growth, but that above a velocity threshold, biofilm detachment and inhibition of biofilm formation due to high shear stress were observed. High nutrient concentration prompts the biofilm growth, but was accompanied by a relatively weak adhesive strength. This letter provides an overview of biofilm development in a hydrodynamic environment for better predicting and modelling the bioplugging associated with porous system in petroleum industry, hydrogeology, and water purification.