Lipid is an important component in domestic wastes that
causes severe environment pollution. It can form oil @lms on
water surfaces, preventing the diAusion of oxygen from air
into water and leading to the death of many forms of aquatic
life. Aggregates formed by oil droplets and other particles present in wastewater can also block water drainage
lines. Generally, lipid residues are partially recovered from
wastewater by air Doatation and the remaining residues are
treated by normal wastewater-treatment processes