Water4260+organics [1796435] - Water Organics FOOD 4260...

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Water - Organics FOOD 4260 August 2015
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Water usage- food industry Clean- food, equipment Flume – move product Cool- (chill poultry, pasteurize, can, UHT) Heat- pasteurize, blanch Ingredient HACCP- GMP- potable water
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Pollutant types Pollutants regulated under the CWA are classified as : 1. priority pollutants- toxic pollutants Heavy metals Pesticide residues 2.conventional pollutants biochemical oxygen demand (BOD) chemical oxygen demand (COD) total suspended solids (TSS) fecal coliform oil and grease and pH
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4. Suspended Solids Total suspended solids is a water quality measurement usually abbreviated TSS listed as a conventional pollutant in the U.S. Clean Water Act the dry-weight of particles from a specified volume of effluent trapped by a filter , of a specified pore size
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What are some different types of water pollution? 1. Microbiological Disease-causing (pathogenic) microorganisms, like bacteria, viruses and protozoa can cause swimmers to get sick. Fish and shellfish can become contaminated and people who eat them can become ill. Some serious diseases like polio and cholera are waterborne.
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2. Chemical A whole variety of chemicals from industry, such as metals and solvents, pesticides , insecticides for controlling insects and herbicides for controlling weeds-- are all types of toxic chemicals. Some of these can accumulate in fish and shellfish and poison people, animals, and birds that eat them. Materials like detergents and oils float and spoil the appearance of a water body, as well as being toxic
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3.Nutrients The elements phosphorus and nitrogen are necessary for plant growth, and are plentiful in untreated wastwater. Added to lakes and streams, they cause nuisance growth of aquatic weeds, as well as "blooms" of algae , which are microscopic plants. Algae and weeds die and become biodegrable material If the water is used as a drinking water source, algae can clog filters and impart unpleasant tastes and odors to the finished water .
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4.Biodegradable pollutants Oxygen-depleting substances Organic wastes Organic wastes are biodegradable , that is, they can be broken down and used as food by microorganisms.
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