What is trade waste? Trade waste refers to any liquid waste produced by businesses or industrial activities, excluding do ... Trade Waste Management Council's Trade Waste Management Policy and Trade Waste Management Plan Trade Waste Category 1: Low Impact - Fact Sheet Businesses in this category require minimal pre-treatment. Examples include hairdressers, dental cli ... Trade Waste Category 2: Mechanical - Fact Sheet These businesses should use mineral oil removal devices as well as oil separators/arrestors. This in ... Trade Waste Category 3: Food Related Business - Fact Sheet Businesses here require grease traps or similar devices. This category includes restaurants, coffee ... Trade Waste Category 4: High Flow, Low Concentration - Fact Sheet These businesses discharge large volumes of waste with low strength. Examples are laundries, laundro ... Trade Waste Category 5: Major Industry - Fact Sheet Businesses in this category require pre-treatment devices and produce high strength and high flow wa ...