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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The residue after expressing still contains 30 to 40 per cent water and 25 per cent grease. From the filtrate the grease separates out on the top, and after washing and deodorising it is sold, generally to America. In the Bradford plant the total sewage must be treated with sulphuric acid to decompose the dissolved soaps. The proceeds from the sale of grease cover about half the cost of the sulphuric acid. The grease residues remaining over are burned with one-eighth the amount of coal, as on a...ccount of the large percentage of grease present it is not saleable as manure. In an experimental plant the recovery of grease from the press residues was tried. The residues are heated in retorts from which the grease distils over. The residue remaining in the retort should then be suitable for addition to artificial manure, since it contains some phosphoric acid and about 1-5 per cent nitrogen.
The town of Kassel has for two or three years worked a grease- recovery plant with a machine attached to their sedimentation plant.
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 Tillmans, Josef, 1876-1935 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The residue after expressing still contains 30 to 40 per cent water and 25 per cent grease. From the filtrate the grease separates out on the top, and after washing and deodorising it is sold, generally to America. In the Bradford plant the total sewage must be treated with sulphuric acid to decompose the dissolved soaps. The proceeds from the sale of grease cover about half the cost of the sulphuric acid. The grease residues remaining over are burned with one-eighth the amount of coal, as on a...ccount of the large percentage of grease present it is not saleable as manure. In an experimental plant the recovery of grease from the press residues was tried. The residues are heated in retorts from which the grease distils over. The residue remaining in the retort should then be suitable for addition to artificial manure, since it contains some phosphoric acid and about 1-5 per cent nitrogen.
The town of Kassel has for two or three years worked a grease- recovery plant with a machine attached to their sedimentation plant.
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 Tillmans, Josef, 1876-1935 to read onlineMoreLess
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