Clean Water And How to Get It
Clean Water And How to Get It
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In our eReader you can find the full English version of the book. Read Clean Water And How to Get It 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 Clean Water And How to Get It
What reading level is Clean Water And How to Get It book?
To quickly assess the difficulty of the text, read a short excerpt:
The development seems to have come about in this way. The coagulant most commonly used in mechan- ical filtration is sulphate of alumina or crude alum. Now, sulphate of iron, or copperas, is cheaper, and under some conditions fully as efficient as sulphate of alumina as a coagulant. With the iron it is necessary 76 WATER PURIFICATION IN AMERICA.
to use lime, as without it precipitation is not sufficiently rapid and complete. Only a little lime, comparatively, is needed to throw down the iron. A... considerably larger quantity will also throw down some of the lime naturally present in the water, together with the lime that is added. This is the old and well known Clark process for softening water, which is the basis of all water-softening methods.
In 1903, the iron and lime process of treating water was applied to the Mississippi River water supplied to St. Louis. In this case the water, after the chemical treatment, passed through settling basins but was not filtered. At Quincy, 111. , Lorain, Ohio, and other places it was applied as a preliminary to nitration.
What to read after Clean Water And How to Get It?
You can find similar books in the "Read Also" column, or choose other free books by Hazen, Allen, 1869-1930 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The development seems to have come about in this way. The coagulant most commonly used in mechan- ical filtration is sulphate of alumina or crude alum. Now, sulphate of iron, or copperas, is cheaper, and under some conditions fully as efficient as sulphate of alumina as a coagulant. With the iron it is necessary 76 WATER PURIFICATION IN AMERICA.
to use lime, as without it precipitation is not sufficiently rapid and complete. Only a little lime, comparatively, is needed to throw down the iron. A... considerably larger quantity will also throw down some of the lime naturally present in the water, together with the lime that is added. This is the old and well known Clark process for softening water, which is the basis of all water-softening methods.
In 1903, the iron and lime process of treating water was applied to the Mississippi River water supplied to St. Louis. In this case the water, after the chemical treatment, passed through settling basins but was not filtered. At Quincy, 111. , Lorain, Ohio, and other places it was applied as a preliminary to nitration.
What to read after Clean Water And How to Get It?
You can find similar books in the "Read Also" column, or choose other free books by Hazen, Allen, 1869-1930 to read onlineMoreLess
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