TREATMENT OF KRAFT BLEACHING EFFLUENTS BY LIGNIN-DEGRADING FUNGI .1. DECOLORIZATION OF KRAFT BLEACHING EFFLUENTS BY THE LIGNIN-DEGRADING FUNGUS IZU-154
Lee, SH; Kondo, R; Sakai, K; Nishida, T; Takahara, Y
| HERO ID | 4947347 |
|---|---|
| In Press | No |
| Year | 1993 |
| Title | TREATMENT OF KRAFT BLEACHING EFFLUENTS BY LIGNIN-DEGRADING FUNGI .1. DECOLORIZATION OF KRAFT BLEACHING EFFLUENTS BY THE LIGNIN-DEGRADING FUNGUS IZU-154 |
| Authors | Lee, SH; Kondo, R; Sakai, K; Nishida, T; Takahara, Y |
| Volume | 39 |
| Issue | 4 |
| Page Numbers | 470-478 |
| Abstract | Three white-rot fungi (IZU 154, Phanerochaete chrysosporium Burds. and Coriolus versicolor (L. ex Fr.) Quel.) were tested for their abilities to decolorize kraft bleaching effluents from the first alkaline extraction stage. The fungus IZU-154 exhibited the effective decolorization of not only hardwood but also softwood kraft pulp bleaching effluent. <br> <br>For the softwood bleach plant effluent containing 10000 color units (CU), treatment with IZU-154 in the presence of a small amount of glucose (0.5%) resulted in 78% and 89% reductions of the color after one- and two-day incubations, respectively. On the other hand, when the effluent was treated under the same conditions, only 32% and 36% of the decolorization with C. versicolor and 49% and 72% of the decolorization with P. chrysosporium were observed within one- and two-day incubations, respectively. In comparison with 53% and 78% of color reductions achieved by IZU-154 with the softwood bleach plant effluent including glucose, addition of glucono-delta-lactone to the effluent showed remarkable decolorizations of 83% and 94% within 12- and 24-hour incubations, respectively. Furthermore, the color of the effluent was effectively removed by the addition of acetic acid as an additive. Therefore, a greater color reduction by IZU-154 can be expected for a possible biotechnological application. |
| Wosid | WOS:A1993LE85100014 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal:MOKUZAI GAKKAISHI 0021-4795 |
| Is Public | Yes |
| Keyword | WHITE-ROT FUNGI; BLEACHING EFFLUENT; DECOLORIZATION; ADDITIVES |