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High Strength Wastewater: Parameters and Source Characteristics

High Strength Wastewater: Parameters and Source Characteristics. Pretreatment Technologies Workshop. Potential sources. Commercial Institutional Residential. Commercial sources: Food Service. Food Stand Restaurant Grocery store with food service Convenience store with food service.

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High Strength Wastewater: Parameters and Source Characteristics

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  1. High Strength Wastewater: Parameters and Source Characteristics Pretreatment Technologies Workshop

  2. Potential sources • Commercial • Institutional • Residential

  3. Commercial sources: Food Service • Food Stand • Restaurant • Grocery store with food service • Convenience store with food service

  4. Rough prescriptive codes • Square footage, # employees • Hours of operation • # Meals served • Location

  5. Factors affecting wastewater strength of food service facilities

  6. Cuisine: what do they serve? • Ethnic differences • Cooking oils • Self serve drinks • Ice cream machines • Alcoholic beverages • Coffee shops

  7. Serving Mode • Take out/carry out • Salad bar • Buffet • Banquet

  8. Management procedures • Dishes • Dishwasher • Defrosting method • Garbage disposal

  9. Management • Laundry machine • Water source • Pressure • Water treatment • Floor cleaning • Caustic cleaners • Drains?

  10. Other commercial facilities • Inn/Lodge, B and B • Golf courses • Camping • Breweries, wineries

  11. Other commercial facilities • Car washes • Particulates • Sediment trap? • Road tar, petroleum waste • Oil/grease trap? • Soaps and wax

  12. Other commercial facilities • Beauty shops/spas • Chemicals used • Waxing • Mud baths • Visitor center

  13. Other commercial facilities • Photography labs • Chemicals • Heavy metals • Solvents

  14. Other commercial facilities • Laundries and dry cleaners • Lint • Particulates • Dry cleaning agents • Acidic and caustic compounds • Soaps • Dyes

  15. Other commercial facilities • Meat processing facilities/slaughterhouses • Blood • Hair • Cleaning agents • Caustic, acidic or both • FOGs

  16. Other commercial facilities • Food processing facilities • FOGs • Particulates • Cleaners

  17. Grocery stores • Services • Meat market • Bakery • Food service

  18. Mini malls • A mix of sources • How many? • Check characteristics of each one • They will change • Separate septic tank for each one

  19. Institutional sources • Schools • Students, faculty • What level • Facilities: cafeteria, showers, labs • Day Care Centers • Age - No. of children in diapers • Churches • Members • Other services

  20. Institutional sources • Hospitals, clinics • Nursing homes

  21. Institutional sources • Veterinary facilities • Funeral homes

  22. Residential sources and wastewater strength • Parameters that influence strength

  23. Occupancy • Owner occupied or rental • Year round or seasonal • Demographics

  24. Other contributions to high strength in residential settings • Additives • Garbage disposal • FOGs

  25. PPCP’s • Common causes of high strength in residential settings • Chemotherapy, hormones, diabetic drugs • Cleaning products • Personal care products • Hobbies/home businesses

  26. Checklists • Designed for troubleshooting • Also helpful for design review

  27. Questions?

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