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ENVE 420 Industrial Pollution Control

ENVE 420 Industrial Pollution Control. INTRODUCTION Dr. Aslıhan Kerç. Industrial Pollution. Solid and Hazardous Wastes. Water Pollution. Air Pollution. Interrelations between pollution types in an industrial system. Raw Material. Industrial System. Products By-products. Energy.

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ENVE 420 Industrial Pollution Control

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  1. ENVE 420IndustrialPollutionControl INTRODUCTION Dr. Aslıhan Kerç

  2. Industrial Pollution Solid and Hazardous Wastes Water Pollution Air Pollution Interrelations between pollution types in an industrial system.

  3. Raw Material IndustrialSystem Products By-products Energy Wastes Reuse Recycle Real Wastes hazardous Radioactive Solid Gas Liquid

  4. Productiononeormorematerialsareused • Process: includesalltheunitoperationstoobtainproducts • Sub-processes: not directlyrelatedwithproduction. Includessupply of energy, preperation of materials • Inputsinto an industrialsys: ? Material + energy • Outputs: ? Products + By-products + wastes • Waste: ? Iftheoutputsfrom an industry do not haveeconomicvaluetheyareconsidered as wastes.

  5. PollutionManagement in an Industry • Examination of the industry as a whole with all major and sub-processes • Aim: minimize waste production If necessary  change the process

  6. Process types • Continuous process • Batch process • Semi-batch process (e.g. raw material continuous, production not)

  7. Operation of the industry should be known on daily, weekly and seasonal basis # shifts / day Workdays / week Is there production in weekends? Is there any seasonal changes within the year?

  8. Material and Energy Balance

  9. Flowrates • Variations in waste flows depending on the diversity of the products manufactured and on process operations. • Process operations - Batch - Continuous Industrial surveys are conducted to determine waste loadings and variations.

  10. Units used in industrial pollution • Volume • Load • Concentration

  11. Expression of Flows / Volume • Time basis m3/h, m3/day • Production basis m3/product m3/raw material m3/energy used

  12. Expression of Load • Time basis kg BOD5 /h, kg BOD5 /day • Production basis Textile: kg BOD5 / ton cloth Sloughter house. Meat processing ind.: kg SS / kg live weight kill Metal plating: kg Cadmium / m2 plated area

  13. Expression of Concentration • Mass mg/L kg/m3 • Volume mL /L L/m3 • Percentage mass % volume %

  14. Population Equivalent • Pollution loads of an industry can be expressed in terms of people equivalent. • Characteristics of domestic wastewater are taken as the reference for the conversion L water consumption/ capita-day Pollution load / capita-day

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