Decolorization of Cotton Pulp Black Liquor by Pleurotus ostreatus in a Bubble-column Reactor

• Published in: Bulletin of environmental contamination and toxicology Vol. 80; no. 1; pp. 44 - 48
• Main Authors: Zhao, L. H, Zhou, J. T, Lv, H, Zheng, C. L, Yang, Y. S, Sun, H. J, Zhang, X. H
• Format: Journal Article
• Language: English
• Published: New York New York : Springer-Verlag 2008; Springer-Verlag; Springer Nature B.V
• Subjects: Aquatic Pollution; Bioreactors; Chemical contaminants; Coloring Agents; Cotton Fiber; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Enzymes; Equipment Design; Fungi; Laccase - metabolism; Lignin - metabolism; Pleurotus - enzymology; Pleurotus ostreatus; Pollution; Reactors; Soil Science & Conservation; Toxicity; Waste Water Technology; Water Management; Water Pollution Control; Cotton pulp black liquor; Bioreactor; Decolorization
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/s00128-007-9313-5

Decolorization of cotton pulp black liquor by Pleurotus ostreatus B1 in a bubble-column reactor (BCR) was studied. The optimal conditions for the running of BCR are 30°C, pH 6.0, aeration rate 1.2 L min-¹, and mycelial age 7 days. Under the optimal conditions, the BCR was run for four cycles (each cycle, 12 days) and the same mycelial pellets were reused. The ultimate decolorization and COD removal rates are 76% and 80%, respectively.