Water/Water Treatment

• There are 2 ways to treat Salt Water: Distillation and Reverse Osmosis.
• Distillation requires heat meaning more energy meaning more money.
• Potable water: Safe to drink
• Fresh water: Obtain from a river, water is filtered to seperate insoluble solids, water sterilised with ozone, chlorine or UV to destroy harmful microorganisms.

  
• Sewage Sludge for fertilisers, may increase due to increased population and high demand for food.

  
• There are 3 main sources of Waste Water: Domestic, Agricultural, Industrial.

  
• 1- Waste Water Treatment: Screening - Sewage through mesh, trapping large material. Sedementation - Sewage sits in settlement tank. Solids sink - sludge, lighter - effulent at top.

  
• 2 - Waste Water Treatment: Sludge - Anaerobic Digestion - Fertlisers. Effluent - Aerobic Digestion - Back into environment.