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This document discusses various water treatment processes for different types of pollutants. It provides information on disinfection methods like chlorination and UV treatment for bacteria, as well as processes like ion exchange for water softening to remove calcium and magnesium. It also discusses carbon filtration to remove organic chemicals, tastes and odors, as well as processes for treating hydrogen sulfide like chlorination and oxidation filters. Reverse osmosis and distillation are also summarized as water treatment methods.
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Advanced waste water treatment
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Mr. Brian Oram, a professional geologist from Wilkes University, presented on drinking water issues affecting private homeowners and treatment recommendations. He discussed various water treatment methods like disinfection, filtration, and ion exchange that can address contaminants. The presentation provided examples of private well water sample test results and recommendations for addressing issues like bacteria, pH, hardness, and iron levels. Tips were also given on properly evaluating water sources, exploring all treatment alternatives, and carefully selecting reputable treatment equipment suppliers.
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Power Plant Engineering
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Wate treatment2
- 1. WELCOME
- 3. Water Treatment disinfection cation exchange anion exchange oxidation filtration pH adjustment adsorption demineralization Match the pollutant with the correct process!
- 4. Iron / Nuisance Bacteria • Periodic shock well disinfections • Drop tablets chlorinators • Chlorine feed system • Ozone treatment • UV treatment – may be possible probably Class A Unit (turbidity, hardness, iron, manganese issues)
- 5. U-V Tube U-V Sterilizer The Selection of UV Unit system depends on the following: a) General Water Quality b) Turbidity c) Hardness d) Iron and Manganese e) Bacterial Levels f) Source Water Type and Overall Water Quality ? Http://www.nsf.org
- 6. Ozone
- 7. Water Softener Do Not Remove All the Water Hardness ! Ion Exchange: Sodium for Calcium & Magnesium Schematic of Softener RESIN (Sodium Or Potassium) Raw Water (Sodium or Potassium) Calcium & Magnesium And other Multivalent cations Treated Water
- 8. Carbon Filtration • Uses – Remove man-made organic chemicals – Remove miscellaneous tastes and odor from water – assuming no bacterial problems – Remove radon gas from water • Maintenance – Carbon must be replaced routinely
- 9. Hydrogen Sulfide • Hot water only? – Adjust water heater to a temperature of 160C for 12 to 24 hours and then flush – remove or replace rod in heater (Warranty Issues) • Carbon Filtration- no bacterial problem • Chlorination/ Contact Tank / Filtration • Aeration- no bacterial problem • Oxidizing filter- manganese greensand
- 10. Reverse Osmosis • force water through membrane • removes many contaminants
- 11. Distillation • heat water to boiling • condense vapor • ions left behind • energy intensive Heat Source Cooling Water Raw Water Treated Water
- 12. THANK YOU