Study of the evaporation process of saline waste from the tanning industry

The second and third steps of wastewater treatment in the tanning industry generate sludges that are rich in salts, organic matter and suspended solids. Since these are formally catalogued as industrial wastes by environmental legislation, they cannot be disposed of directly but need a final treatme...

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Veröffentlicht in:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA. - 1991. - 25(2007), 5 vom: 10. Okt., Seite 467-74
1. Verfasser: Bódalo, A (VerfasserIn)
Weitere Verfasser: Gómez, J L, Gómez, E, Hidalgo, A M, Alemán, A
Format: Aufsatz
Sprache:English
Veröffentlicht: 2007
Zugriff auf das übergeordnete Werk:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Industrial Waste
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520 |a The second and third steps of wastewater treatment in the tanning industry generate sludges that are rich in salts, organic matter and suspended solids. Since these are formally catalogued as industrial wastes by environmental legislation, they cannot be disposed of directly but need a final treatment. One of the problems with these wastes is their high water content, which has to be reduced. In the particular case of the concentrated streams from the secondary and tertiary treatment steps, the sludges are first concentrated by evaporation, and the evaporated water is used in other parts of the plant. This study, which preceded evaporator design, analysed the evaporation process (laboratory scale) of a saline residue produced in the reverse osmosis step of the treatment of tanning wastewaters by the company Aquagest Levante, S.A. in Lorca (Murcia, Spain), to ascertain its behaviour in the evaporation process and the evolution of its physical properties. The study served to determine the exact mineralogy and ionic composition as well as the characteristics of the waste in question. This information was used in the last step of the design of the evaporation equipment 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Gómez, J L  |e verfasserin  |4 aut 
700 1 |a Gómez, E  |e verfasserin  |4 aut 
700 1 |a Hidalgo, A M  |e verfasserin  |4 aut 
700 1 |a Alemán, A  |e verfasserin  |4 aut 
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