Tertiary treatment of sewage water: Steyn City Irrigation Filtration System Project ID: The Problems: • South Africa is a water scarce country where reusing water for irrigation will save water. Agriculture use including irrigation makes up approximately 60% of the water used in South Africa. • The raw water contained E.Coli, high values of Suspended Solids and nitrates. The values exceed the required values outlined by Section 21(e): Engaging in controlled activity; irrigation of any land with water/water containing waste. Parameter Existing Values Required Value Temperature (°C) >30 - pH 7.6 - 8.8 5.5 – 9.5 E.Coli (per 100ml) >1700

Join for free to read