Biological waste treatment

 

Learning objectives:

• Knowledge of most important methods for the biological treatment of waste and legal and substance-related restrictions
• Ability to calculate processes which includes establishing the essential design parameters and the operating costs
• Ability to evaluate processes considering economic and ecologic aspects

 

Contents of lecture:

• Types of waste for biological treatment, qualities, seasonal cycles
• Overview of the processing methods in waste composting
• Overview of the processing methods in waste fermentation (dry and wet)
• Qualitative requirements on the pre-conditioning before biological treatment
• Technical solutions for mechanical pre-treatment/ conditioning
• Transferring organic matter into a liquid phase of raw waste by pressing/ percolation
• Hygienic and legal requirements on products of fermentation/ composting
• Combination of anaerobic and aerobic treatment, full flux-/ part flux fermentation
• Mass and energy balance of mono- and combined processes
• Use of biological waste treatment products (solid/ liquid fermentation residue, composts, ”stabilat”)
• Cost calculation for biological treatment plants on the basis of realized projects

 

Contents of tutorial:

• Design calculation for biological treatment plants (biological- and residual waste)
• Balance calculation for biological treatment plants
• Cost calculation for biological treatment plants