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Usage Of Coagulation With Ozonation For Treatment Of Model Wastewater Of Wood Processing With Aluminium Salts

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  21st Century Watershed Technology: Improving Water Quality and the Environment Conference Proceedings, May 27-June 1, 2012, Bari, Italy  12-13698.(doi:10.13031/2013.41412)
Authors:   Julija Brovkina, Galia Shulga, Sanita Vitolina, Brigita Neiberte, Jurijs Ozolins, Maris Turks, Vitalijs Rjabovs, Romans Neilands
Keywords:   Coagulation, aluminium salts, ozonation, hemicelluloses, lignin, coagulates, wastewater

One of the stages of raw material preparation for plywood producing is hydrothermal treatment of birch wood. Wastewater of hydrothermal basins are characterized by the high degree of contamination, because they contain hemicelluloses, lignin and wood extractive substances (HLES). The combination of physico-chemical methods, especially methods of coagulation and ozonation is an effective way to clean wastewater from HLES. To validate the viability decision of the application of coagulation and ozonation method was necessary to conduct comprehensive studies on the efficacy of HLES removal in the presence of aluminium salts and to determine effectiveness of ozonation stage.

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