Department of Process Engineering

https://www.univ-soukahras.dz/en/dept/gp

Lecturer
Information	Master - Environmental process engineering Department of Process Engineering Website : https://www.univ-soukahras.dz/en/module/4614 Semester : S3 Unit : UEF 2.1.1 Credit : 4 Coefficient: 2
Content	1. Introduction: Objectives and need for biological treatment 2. Composition and classification of microorganisms - Introduction to microbial metabolism and biological reaction (carbon sources and energy sources, nutritional requirements of microorganisms) 3- Metabolism of decomposers - Conversion and growth conditions - Microbial growth and Monod kinetics (Monod model and bio-kinetic constants; specific growth rate, substrate utilisation rate, oxygen consumption rate) - Determination of Monod bio-kinetic constants (batch technique, continuous reactor technique) - The different pathways of biological degradation of pollution in wastewater (aerobic pathway, anoxic pathway and anaerobic pathway) - Modelling biological purification (competition model, inhibition model, ASM1, etc.) 4- Biological purification techniques - Free biomass processes - Fixed biomass processes 5- Examples of biological purification techniques: activated sludge, biological filters, membrane reactors, lagooning systems, etc. 6- Activated sludge - Type of activated sludge (high load, medium load and prolonged aeration) concept of sludge age and mass load; - Development of an activated sludge system balance sheet with feedback (sludge age, mass load, determination of substrate and biomass concentrations at outlet, aeration tank volume, quantity of excess sludge, oxygen and air requirements). - Sizing an activated sludge system - Use of activated sludge for carbon and nitrogen removal - Using activated sludge to eliminate carbon, nitrogen and phosphorus. - Different configurations of activated sludge reactors (biological basin, channel, sequential, piston, etc.) 7- Sludge treatment: quantification of sludge generated in a biological treatment system, dewatering and treatment of sludge (thickening, aerobic digesters, anaerobic digesters, drying bed, filter press). 8- Malfunctions and remedial techniques in biological treatment: sludge deflocculation, biological expansion and foaming (diagnostic techniques and implementation of remedial procedures).
Evaluation	Continuous assessment: 40%; Exam: 60%.