# The filtration of public water-supplies Third edition, revised and enlarged.

Author: Hazen, Allen, 1869-1930

Genre: Category: Science - Earth/Agricultural/Farming

Language: English

License: Public domain

Source: https://www.gutenberg.org/ebooks/69025

Amazon editions: https://www.amazon.com/s?k=The+filtration+of+public+water-supplies+Third+edition%2C+revised+and+enlarged.+Hazen&tag=cyberlibrar00-20

## Summary

II. CONTINUOUS FILTERS AND THEIR CONSTRUCTION 5 Sedimentation-basins 8 Size of Filter-beds 10 Form of Filter-beds 11 Covers for Filters 12 III. FILTERING-MATERIALS 20 Sand 20 Sands Used in European Filters 24 Effect of Size of Grain Upon Efficiency of Filtration 30 Effect of Grain Size Upon Frequency of Scraping 32 Selection of Sand 33 Thickness of the Sand Layer 34 Underdraining 35 Gravel Layers 35 Underdrains 39 Depth of Water on Filters 45 IV. RATE OF FILTRATION AND LOSS OF HEAD 47 Effect of Rate Upon Cost of Filtration 48 Effect of Rate Upon Efficiency of Filtration 50 The Loss of Head 52 Regulation of the Rate and Loss of Head in the Older Filters 52 Apparatus For Regulating the Rate...

## Chapters

- [CHAPTER XIV.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/15/index.md)
- [CHAPTER VIII.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/9/index.md)
- [CHAPTER III.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/4/index.md)
- [CHAPTER X.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/11/index.md)
- [CHAPTER IV.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/5/index.md)
- [CHAPTER VII.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/8/index.md)
- [CHAPTER II.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/3/index.md)
- [CHAPTER IX.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/10/index.md)
- [CHAPTER V.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/6/index.md)
- [CHAPTER VI.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/7/index.md)
- [CHAPTER XIII.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/14/index.md)
- [CHAPTER XII.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/13/index.md)
- [Part II. Systematic Pomology 12mo, 1 50](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/16/index.md)
- [CHAPTER XI.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/12/index.md)
- [Part II. Form, Strength, and Proportions of Parts 8vo, 3 00](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/19/index.md)
- [Chapter I. INTRODUCTION. 1](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/1/index.md)
- [Part III. A Treatise on Brasses, Bronzes, and Other Alloys and their](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/24/index.md)
- [CHAPTER I.](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/2/index.md)
- [Part IV. Higher Structures 8vo, 2 50](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/17/index.md)
- [Part III. A Treatise on Brasses, Bronzes, and Other Alloys and their](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/18/index.md)
- [Part II. Form, Strength, and Proportions of Parts 8vo, 3 00](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/23/index.md)
- [Part II. Form, Strength, and Proportions of Parts 8vo, 3 00](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/20/index.md)
- [Part II. Design, Construction, and Operation 8vo, 6 00](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/22/index.md)
- [Part III. A Treatise on Brasses, Bronzes, and Other Alloys and their](https://www.cyberlibrary.org/en/books/the-filtration-of-public-water-supplies-third-edition-revised-a-13bf97c7/chapters/21/index.md)