Question

Advantages and disadvantages of sewage water treatment sites

Answer 1

Advantages

• Capable of removing 97% of suspended solids
• Biological nitrification without adding chemicals
• Oxidation and nitration achieved
• Biological phosphorous removal
• Solids and liquids separation
• Removes organics
• Cost effective
• Easily maintained mechanical work
• Self sustaining system

Disadvantages

• Cleaning is a hassle
• Most plants need at least three tanks
• Temperature changes affect the tank greatly.
• Activated sludge is a suspended process, and a suspended process is when the biomass is mixed with the sewage. The other secondary process is a fixed film process. This is when the biomass grows on the media and the sewage passes over the surface. Types of systems include Trickling filters and rotating biological contractors.