Removal of E. coli O157:H7 coliform bacteria from sewage wastewater using silver doped borate bioglass
Bassant I. Elsaba, Ashraf Elsayed, Yasser S. Rammah, Hosam Salaheldin
TL;DR
A new silver-doped bioglass system effectively removes harmful E. coli bacteria from sewage wastewater, offering a sustainable water purification solution.
Contribution
The study introduces a novel silver-doped borate bioglass system for efficient and eco-friendly removal of fecal coliform bacteria from sewage wastewater.
Findings
The BAg1 bioglass sample showed 95.31% inhibition of E. coli O157:H7 growth.
All silver-doped bioglass samples inhibited coliform bacteria by approximately 100%.
SEM analysis revealed significant bacterial cell deterioration after treatment with BAg1.
Abstract
The depletion of freshwater resources constitutes a significant global issue, prompting the consideration of treated sewage wastewater (SWW) reuse as a viable alternative water source within contemporary water management strategies. The current study represents an innovative silver borate-based bioglass (BG) system for the treatment of municipal SWW. The melting-quenching method was used to prepare silver doped BG samples with different Ag2O concentrations. BAg1, BAg2, BAg3, and BAg4 BG samples were obtained from (65-X) B2O3–20Na2O–10CaO–5P2O5–XAg2O (where X = 0, 1, 2, 3, and 4 mol%). A major fecal coliform bacterium, Escherichia coli O157:H7 (E. coli O157:H7), was used as an indication of SWW purification. BG samples were characterized using FTIR, XRD, SEM, EDX, and DLS, respectively. BAg1 BG sample showed the strongest antibacterial activity against E. coli O157:H7, with a 27.0 ± 1.0…
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Taxonomy
TopicsNanoparticles: synthesis and applications · Bone Tissue Engineering Materials · Bacterial biofilms and quorum sensing