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The filtration of public water-supplies

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Science & Nature

The filtration of public water-supplies

Allen Hazen

391 pages~7 hr 48 min read112 chapters$1.99
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Clean drinking water is one of civilization's quiet triumphs, and filtration made it possible. Allen Hazen explains how sand and sediment beds cleanse a city's water, from the design of filter beds to the materials that do the work. A foundational text of public health engineering. Learn how a city turns river water safe to drink.

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Inside this book

112 chapters

  1. 1THE FILTRATION OF PUBLIC WATER-SUPPLIES.
  2. 2PREFACE TO FIRST EDITION.
  3. 3PREFACE TO THIRD EDITION.
  4. 4CONTENTS.
  5. 5UNITS EMPLOYED.
  6. 6ACKNOWLEDGMENT.
  7. 7CHAPTER I. INTRODUCTION.
  8. 8CHAPTER II. CONTINUOUS FILTERS AND THEIR CONSTRUCTION.
  9. 9SEDIMENTATION-BASINS.
  10. 10SIZE OF FILTER-BEDS.
  11. 11FORM OF FILTER-BEDS.
  12. 12COVERS FOR FILTERS.
  13. 13CHAPTER III. FILTERING MATERIALS.
  14. 14SAND.
  15. 15SANDS USED IN EUROPEAN FILTERS.
  16. 16EFFECT OF SIZE OF GRAIN UPON EFFICIENCY OF FILTRATION.
  17. 17EFFECT OF GRAIN SIZE UPON FREQUENCY OF SCRAPING.
  18. 18SELECTION OF SAND.

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