The oil palm mills generate many by-products and wastes that may have a significant impact on the environment if they are not properly dealt with. This includes
The extraction and purification processes generate a voluminous liquid waste generally known as Palm Oil Mill Effluent (POME).
Palm Oil Mill Effluent is comprised of these three categories:
- 95 -96% Wastewater with BOD (25,000- 65,000 mg/l) and COD (40,000- 100,000 mg/l)
- 2-4% Suspended & total solid impurities (mostly organic)
- 0.5- 1.5% Palm Sludge Oil (PSO)