combination with residues of cooked foods, can form trace levels of harmful organic pollutants such as PAHs. Animal wastes share amenity characteristics with grease trap waste although more so, and contribute some risk of pathogenicity through ingestion. Despite these concerns the overall human health impacts from these wastes are smaller than the potential for environmental impacts. Acute toxicity Low Chronic toxicity Low Carcinogenicity Low Reproductive No reproductive toxicity impacts are expected from these wastes. toxicity Workplace Hygiene is important in both food preparation and processing industries, for the purposes health & safety of food standards and safety to the consumer as well as exposure to raw animal blood and impacts associated carcass wastes of slaughtered animals. Grease trap wastes have environmental impact properties similar to waste oils and tarry residues. There is evidence in the literature that food oil such as vegetable oil spills occur and impact the environment similar to petroleum oil spills.1 Both grease trap and animal industry wastes share a common property of having high biochemical oxygen demand (BOD), due to their high biological organic content. BOD is a measure of the Overview quantity of oxygen used by microorganisms in the oxidation of organic matter. Oxygen consumed in the decomposition process of organic wastes discharged to waterways robs other aquatic organisms of the oxygen they need to live. Consequently oxygen starvation is a symptom of high organic Potential loading of waters, both as a physical surface barrier (oil pollution) environment and as an unnaturally active biochemical process in the vicinity of impacts organic waste discharge. High: Animal fats and vegetable oils can cause devastating physical effects such as coating animals and plants with oil and suffocating Acute ecotoxicity them by oxygen depletion, foul shorelines, clog water treatment plants and catch fire when ignition sources are present. Chronic Low - medium: Can destroy future and existing food supplies, ecotoxicity breeding animals and habitats. Medium: Although vegetable oils in particular will biodegrade Persistence relatively quickly in the environment, large spills can form products that linger in the environment for many years. Bioaccumulation Low: Biological wastes such as these do not bioaccumulate in fish.
combination with residues of cooked foods, can form trace levels of harmful organic pollutants such as PAHs. Animal wastes share amenity characteristics with grease trap waste although more so, and contribute some risk of pathogenicity through ingestion. Despite these concerns the overall human health impacts from these wastes are smaller than the potential for environmental impacts. Acute toxicity Low Chronic toxicity Low Carcinogenicity Low Reproductive toxicity No reproductive toxicity impacts are expected from these wastes. Workplace health & safety impacts Hygiene is important in both food preparation and processing industries, for the purposes of food standards and safety to the consumer as well as exposure to raw animal blood and associated carcass wastes of slaughtered animals. Potential environment impacts Overview Grease trap wastes have environmental impact properties similar to waste oils and tarry residues. There is evidence in the literature that food oil such as vegetable oil spills occur and impact the environment similar to petroleum oil spills.1 Both grease trap and animal industry wastes share a common property of having high biochemical oxygen demand (BOD), due to their high biological organic content. BOD is a measure of the quantity of oxygen used by microorganisms in the oxidation of organic matter. Oxygen consumed in the decomposition process of organic wastes discharged to waterways robs other aquatic organisms of the oxygen they need to live. Consequently oxygen starvation is a symptom of high organic loading of waters, both as a physical surface barrier (oil pollution) and as an unnaturally active biochemical process in the vicinity of organic waste discharge. Acute ecotoxicity High: Animal fats and vegetable oils can cause devastating physical effects such as coating animals and plants with oil and suffocating them by oxygen depletion, foul shorelines, clog water treatment plants and catch fire when ignition sources are present. Chronic ecotoxicity Low - medium: Can destroy future and existing food supplies, breeding animals and habitats. Persistence Medium: Although vegetable oils in particular will biodegrade relatively quickly in the environment, large spills can form products that linger in the environment for many years. Bioaccumulation Low: Biological wastes such as these do not bioaccumulate in fish.
waste-recycling-process-of-used-oil-drilling3.docx