- Low strength wastewater:
- Domestic/sanitary sewage from 5 – 50,000m3/day.
- Housing estate, commercial complex, hospital, school, hotel, restaurant.
- Industrial park, factory, office building.
- Airport and bus terminal.
- Medium strength wastewater:
- Beverages: soft drink bottling, brewery, distillery.
- Food: canning, dairy, grain, meat packing, poultry.
- Pulp and paper.
- Textile: bleaching, dyeing and printing.
- High strength wastewater:
- Fermentation: food and distillery.
- Organic chemicals.