Annual Report of the Department of Public Health for the Year Ending ... 1941-56
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In our eReader you can find the full English version of the book. Read Annual Report of the Department of Public Health for the Year Ending ... 1941-56 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 Annual Report of the Department of Public Health for the Year Ending ... 1941-56
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of 1,150 ppm and a sus- pended solids content of 713 ppm. Samples of the wastes from the various indus- tries in the town, which were to be discharged to the sewage treatment plant, were collected and a composite sample representing the sewage was prepared by mixing industrial waste and domestic sewage in proportions based on flow figures.
In the proposed plant there were plans to use the carbon dioxide gas present in the flue gases for the purpose of reducing the pH of the sewage. Samples of t...he com- posite sewage were treated with carbon dioxide gas to reduce the pH to about 9.0, 8.5, 8.0, 7.5, and 7.0. The amount of carbon dioxide gas was measured and, after the pH had been adjusted, the sample was flocculated for 30 minutes and then samples were collected at the end of the following sedimentation periods : 3, 4, 6, 8, and 10 minutes.
The proposed plans also contemplated the use of ferric salts, preferably ferric sul- phate. Preliminary experiments with various dosages of this chemical were not very encouraging.
What to read after Annual Report of the Department of Public Health for the Year Ending ... 1941-56?
You can find similar books in the "Read Also" column, or choose other free books by Massachusetts. Dept. of Public Health to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
of 1,150 ppm and a sus- pended solids content of 713 ppm. Samples of the wastes from the various indus- tries in the town, which were to be discharged to the sewage treatment plant, were collected and a composite sample representing the sewage was prepared by mixing industrial waste and domestic sewage in proportions based on flow figures.
In the proposed plant there were plans to use the carbon dioxide gas present in the flue gases for the purpose of reducing the pH of the sewage. Samples of t...he com- posite sewage were treated with carbon dioxide gas to reduce the pH to about 9.0, 8.5, 8.0, 7.5, and 7.0. The amount of carbon dioxide gas was measured and, after the pH had been adjusted, the sample was flocculated for 30 minutes and then samples were collected at the end of the following sedimentation periods : 3, 4, 6, 8, and 10 minutes.
The proposed plans also contemplated the use of ferric salts, preferably ferric sul- phate. Preliminary experiments with various dosages of this chemical were not very encouraging.
What to read after Annual Report of the Department of Public Health for the Year Ending ... 1941-56?
You can find similar books in the "Read Also" column, or choose other free books by Massachusetts. Dept. of Public Health to read onlineMoreLess
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