Water Purification And Sewage Disposal
Water Purification And Sewage Disposal
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In our eReader you can find the full English version of the book. Read Water Purification And Sewage Disposal Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Water Purification And Sewage Disposal
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Even up to a few decades ago short work was made of effluents. Generally speaking, the water used in dwelling-houses was conducted in ordinary open sewers to the nearest river.
The vast increase of large towns and the unexpected progress of industry led to the most serious nuisances in this disposal of sewage into rivers. The evil, which is every day becoming more apparent, is both hygienic and economic.
Many large towns are dependent on river-water for their water supply. As was explained in t...he previous section, the bacteria are generally removed by means of a sand filter. Apart from the consideration that the filter naturally cannot remove dissolved filth, substances which owing to their origin may be harmless seem to leave a water unappetising as a drinking-water. Also a greater pollution of surface-water with sewage produces a larger number of bacteria in the filtered water, since no filters are completely germ-tight. This is all the more serious, as, naturally, in sewage waters which contain all human excreta, disease germs may very easily be present.
What to read after Water Purification And Sewage Disposal?
You can find similar books in the "Read Also" column, or choose other free books by J Tillmans to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Even up to a few decades ago short work was made of effluents. Generally speaking, the water used in dwelling-houses was conducted in ordinary open sewers to the nearest river.
The vast increase of large towns and the unexpected progress of industry led to the most serious nuisances in this disposal of sewage into rivers. The evil, which is every day becoming more apparent, is both hygienic and economic.
Many large towns are dependent on river-water for their water supply. As was explained in t...he previous section, the bacteria are generally removed by means of a sand filter. Apart from the consideration that the filter naturally cannot remove dissolved filth, substances which owing to their origin may be harmless seem to leave a water unappetising as a drinking-water. Also a greater pollution of surface-water with sewage produces a larger number of bacteria in the filtered water, since no filters are completely germ-tight. This is all the more serious, as, naturally, in sewage waters which contain all human excreta, disease germs may very easily be present.
What to read after Water Purification And Sewage Disposal?
You can find similar books in the "Read Also" column, or choose other free books by J Tillmans to read onlineMoreLess
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