Status report on solid control in leachates
| Autor: | C.F. Weber, K. Osseo-Asare, C.M. Keswa, R.D. Hunt, K.E. Spear, D.D. Lee, T.A. Dillow, E.C. Beahm |
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| Rok vydání: | 1998 |
| Předmět: |
inorganic chemicals
Materials science Waste management Process equipment technology industry and agriculture chemistry.chemical_element equipment and supplies Status report complex mixtures Chromium chemistry.chemical_compound chemistry Sodium hydroxide Leaching (metallurgy) Leachate Water washing Dissolution |
| DOI: | 10.2172/296612 |
| Popis: | Sludge pretreatment will involve some combination of washing and leaching with sodium hydroxide solutions to remove soluble salts and amphoteric material such as alumina. It is of paramount importance to prevent gelation and uncontrolled solid formation in tanks, transfer lines, and process equipment. An evaluation of results of washing and caustic leaching indicates that washing is more effective in dissolving sludge solids than subsequent sodium hydroxide treatment. Only aluminum and chromium were removed more effectively by caustic leaching than by water washing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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