Industrial Wastewater Sources and Treatment Strategies

Karl-Heinz Rosenwinkel, Ute Austermann-Haun, and Hartmut Meyer

2.1 Introduction and Targets 49

2.2 Wastewater Flow Fractions from Industrial Plants 50

2.2.1 Synopsis 50

2.2.2 Rainwater 50

2.2.3 Wastewater from Sanitary and Employee Facilities 51

2.2.4 Cooling Water 51

2.2.5 Wastewater from In-plant Water Preparation 52

2.2.6 Production Wastewater 52

2.3 Kinds and Impacts of Wastewater Components 52

2.3.1 Temperature 52

2.3.3 Obstructing Components 53

2.3.4 Total Solids, Suspended Solids, Filterable Solids, Settleable Solids 53

2.3.5 Organic Substances 53

2.3.6 Nutrient Salts (Nitrogen, Phosphorus, Sulfur) 54

2.3.7 Hazardous Substances 54

2.3.8 Corrosion-inducing Substances 55

2.3.9 Cleaning Agents, Disinfectants, and Lubricants 55

2.4 General Processes in Industrial Wastewater Treatment Concepts 56

2.4.1 General Information 56

2.4.2 Production-integrated Environmental Protection 56

2.4.3 Typical Treatment Sequence in a Wastewater Treatment Plant 57

2.5 Wastewater Composition and Treatment Strategies in the Food Processing Industry 58

2.5.1 General Information 58

2.5.2 Sugar Factories 58

2.5.3 Starch Factories 61

2.5.4 Vegetable Oil and Shortening Production 63

2.5.5 Potato Processing Industry 65

2.5.6 Slaughterhouses 67

2.5.7 Dairy Industry 69

2.5.8 Fruit Juice and Beverage Industry 70

2.5.9 Breweries 72

2.5.10 Distilleries 73 References 75

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