1. ENVE 420 Industrial Pollution Control INTRODUCTION Dr. Aslıhan Kerç

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

3. Industrial System Raw Material Energy Wastes ReuseRecycle Products By-products Real Wastes hazardous Solid GasLiquid Radioactive

4. Production  one or more materials are used Process: includes all the unit operations to obtain products Sub-processes: not directly related with production. Includes supply of energy, preperation of materials Inputs into an industrial sys: ? Material + energy Outputs: ? Products + By-products + wastes Waste: ? If the outputs from an industry do not have economic value they are considered as wastes.

5. Pollution Management 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 m 3 /h, m 3 /day Production basis m 3 /product m 3 /raw material m 3 /energy used

12. Expression of Load Time basis kg BOD 5 /h, kg BOD 5 /day Production basis Textile: kg BOD 5 / ton cloth Sloughter house. Meat processing ind.: kg SS / kg live weight kill Metal plating: kg Cadmium / m 2 plated area

13. Expression of Concentration Mass mg/L kg/m 3 Volume mL /LL/m 3 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