Lecture 7: Fouling and scaling (types, factors, analysis)

Lecture 7: Fouling vs. Scaling | Mechanisms, Types & Prediction Analysis Welcome to Lecture 7 of the Complete Membrane Technology Course. We now begin Section 2: "Fouling, Scaling, and Concentration Polarization." In this session, we deeply analyze the primary reasons for membrane performance decline and how to distinguish between biological, organic, and inorganic blockages. 🔹 What you will learn in this lecture: Filtration Mechanisms: Detailed explanation of Straining (sieving), Adsorption, and Cake Formation in MF and UF membranes. Fouling vs. Scaling: Understanding the distinct difference between "Fouling" (deposition of organics/colloids) and "Scaling" (inorganic crystallization). Fouling Types: Biofouling: Biofilm formation and extracellular polymeric substances (EPS). Colloidal Fouling: Silt, clay, and the importance of Silt Density Index (SDI). Organic Fouling: Natural Organic Matter (NOM) and interactions with the membrane surface. Pore Blocking Models: Complete blocking, Standard blocking, Intermediate blocking, and Cake filtration. Scaling Compounds: Identification of common scalants like Calcium Carbonate (CaCO3), Calcium Sulfate (CaSO4), and Silica. Scaling Prediction: How to analyze feed water chemistry and calculating solubility limits to predict scaling potential in high-recovery RO plants. --- 👨‍💻 For Consulting, Design & Engineering Services: If you need specialized support for your industrial water treatment projects, feel free to contact me: 🌐 Website: www.re-waters.de 📱 WhatsApp: +49 1776936778 --- #MembraneTechnology #WaterTreatment #Fouling #Scaling #ReverseOsmosis #Biofouling #Engineering #WastewaterTreatment #DrEhsanJafari