Akademik Veri Yönetim Sistemi
5th International Conference on Recycling and Reuse (R&R2024), İstanbul, Türkiye, 5 - 06 Temmuz 2024
This study examines the use of microfiltration membranes in conjunction with adsorbent-assisted filtration systems to remove natural organic matter. The adsorbent particles used were calcium carbonate (CaCO3) particles synthesized in the laboratory using a Ca(OH)2 slurry and CO2 gas. The water was filtered through the microfiltration membrane using both dead-end and cross-flow filtration modes. During each filtration cycle, we sampled the membrane permeate and concentrate streams and established a mass balance for organic matter. We exhausted the adsorption capacity of the particles prepared with Ca(OH)2 solution and converted the CaCO3 particles into CaCl2 form by adding HCl to the membrane. To reduce membrane fouling, we added CO2 gas and KOH/NaOH to the solution medium, which allowed the CaCO3 particles to reform in the solution medium. The treatment performance parameters include the concentration of organic matter in both the permeate and solution media, the volume of permeate (water flux), the repeated use of CaCO3 particles, and the reduction in organic matter concentration with or without the need for coagulant or powdered activated carbon.
Keywords: Natural organic matter; Membrane filtration; Calcium Carbonate Particles; Particle Recycle