Water Treatment - PowerPoint PPT Presentation

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Water Treatment
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Water Treatment

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  1. Water Treatment

  2. Why Bother ? • Water is essential for good health. • Cleaning • Cooking/Food Preparation • Industrial Processes • Valuable Solvent

  3. Common Impurities • Nitrates (NO3-) • Lead Compounds • Pesticides • Sulfates (SO42-) • Organic matter • Where do these impurities come from?

  4. Water Purification

  5. What does each stage achieve ? • Sedimentation • Filtration • Chlorination

  6. What is Activated Sludge ?

  7. Thinking outside the box • How can we remove dissolved poisons ? • How do we recycle water? • How do we preserve water in a low water economy like Israel or Libya? • How do you obtain industrial scale fresh water when you have poor aquifers like many parts of the Middle East?