Use of secondary condensates from black liquor evaporation as process water in D0 bleaching

Pulp and Paper Canada

Volumn 105, Issue 5, 2004, Pages 36-40

  Sankari, M ^a   Sillanpaa M ^a   Ala Kaila, K ^b   Dahl, O ^a  

^a UNIVERSITY OF OULU   (Finland)

^b Metsä Botnia Ltd   (Finland)

Author keywords

Black liquors; Chemical oxygen demand; Chlorine dioxide bleaching; Condensates; Evaporation; Kraft pulps; Softwoods; Sulfur compounds; Volatiles content; Water supply

Indexed keywords

CHEMICAL OXYGEN DEMAND; EVAPORATION; KRAFT PULP; PEROXIDES; SOFTWOODS; SULFUR COMPOUNDS; WATER SUPPLY;

BLACK LIQUOR EVAPORATION; TOTAL REDUCED SULPHUR; VOLATILE CONTENT;

BLEACHING;

BLACK LIQUORS; BLEACHING; CHEMICAL OXYGEN DEMAND; CHLORINE DIOXIDE; CONDENSATES; EVAPORATION; KRAFT PULPING; SOFTWOODS; WATER SUPPLY;

EID: 2942594849     PISSN: 03164004     EISSN: None     Source Type: Trade Journal    
DOI: None     Document Type: Article

References (14)

1. PEKKANEN, M., KIISKILÄ, E. Options to close the water cycle of pulp and paper mills by using evaporation and condensate reuse. Proc., 1996 Minimum Effluent Mills Symposium, Atlanta, 22-24 (1996).
2. SÄVELIN. P., BERGQVIST. L. Closure of the EO stage in the ECF bleach plant. Proc., 1997 TAPPI Minimum Effluent Mills Symposium, San Francisco, 67 (1997).
3. JORONEN, A., LÖPPöNEN, R., PIKKA, O., VILPPONEN, A. Fractional washing in TCF and ECF bleaching-Mill experiences. Proc., 1998 International Pulp Bleaching Conference, Helsinki, 219 (1998).
4. LIIAS, P., MERIKALLIO, T. Metsä-Rauma Process-A forerunner in TCF quality. Proc., 1998 International Pulp Bleaching Conference, Helsinki, 269 (1998).
5. ANNOLA, T-L., HYNNTNEN, P., HENRICSON K. Effect of condensate use on bleaching. Paper and Timber 77(3): 111-115 (1995).
6. NIEMELÄ, K., SAUNAMÄKI. R., RASIMUS, R. Use of black liquor evaporation condensates at different bleaching stages. Proc., 1999 10th International symposium on wood and pulping chemistry, Yokohama, Japan, 458-463 (1999).
7. BLACKWELL, B.R., MACKAY, W., MURRAY. F., OLDHAM, W. Review of kraft foul condensates: Sources, quantities, chemical composition and environmental effects. Tappi J. 62(10): 33-37 (1979).
8. SEBBAS, E. Reuse of kraft mill secondary condensates. Proc., 1987 TAPPI Engineering Conference, New Orleans, 385-390 (1987).
9. EMILSSON, K., HÅKANSSON, M., DANIELSON, G. Extended stripping and usage of evaporator condensates at Värö mill, Sweden. Proc., 1997 Minimum Effluent Mills Symposium, San Francisco, 191-197 (1997).
10. VIIRIMAA, M., DAHL, O., NIINIMÄKI, J., PERÄMÄKI. P. Effects of certain chemical components on the bleachability of pulp in the DO stage. Proc., 2001 11th International symposium on wood and pulping chemistry. Nice, France, Vol. III: poster presentations, 167-470 (2001).
11. HYNNINEN, P. On the reactions of methyl mercaptan and its oxidation products in air- or steam stripping of sulfate mill condensates. Paperi ja Puu 53: 159 (1971).
12. NIEMELÄ, K., SAUNAMÄKI, R., RASIMUS, R. Studies on the use of black liquor evaporation condensates at different bleaching stages. Proc., 10th International conference CELLUCON 98, Turku, Finland, 149-157 (1998).
13. DAHL. O., TIRRI. T., NIINIMÄKI, J. Evaporation of acidic effluent from ECF bleaching: pilot tests. Proc., 1998 TAPPI Environmental Conference, Vancouver, 1323-1333 (1998).
14. VIIRIMAA, M., DAHL, O., NIINIMÄKI, J., ALAKAILA, K., PERÄMÄKI, P. Identification of the wash loss compounds affecting the ECF bleaching of soft-wood kraft pulp. Appita J. 55(6): 484-488 (2002).