THE FATE OF C-14-LABELED HIGH-MOLECULAR-WEIGHT CHLORINATED LIGNIN AND CHROMOPHORIC MATERIAL DURING MICROBIAL TREATMENT OF BLEACHED KRAFT EFFLUENT

被引：10

作者：

BOURBONNAIS, R

PAICE, MG

机构：

[1] Pulp & Paper Research Inst of, Canada, Pointe Claire, Que, Can, Pulp & Paper Research Inst of Canada, Pointe Claire, Que, Can

来源：

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY | 1987年 / 7卷 / 01期

关键词：

BACTERIOLOGY; -; COLOR; Removal; FUNGI; LIGNIN; MICROORGANISMS;

D O I：

10.1080/02773818708085252

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Bleached kraft effluent (BKE) is highly coloured due to the presence of high molecular weight, chlorinated, oxidised lignin. The dimethyl formamide-soluble portion of BKE was radiolabelled by methoxylation with **1**4C-methyl iodide, and the resulting product (C14-BKE) was used to investigate the mechanism of colour removal by fungi and bacteria. The white-rot fungi Coriolus versicolor and Pleurotus sajor-caju decolorised the solutions, and depolymerised the C14-BKE. Both fungi produced about 16% **1**4CO//2 from C14-BKE in 20 days. The three bacteria tested, Bacillus cereus and two strains of Pseudomonas aeruginosa, removed colour primarily by adsorption with little depolymerisation or mineralization. The adsorbed C14-BKE could be removed from bacterial cells by washing with 0. 1 M NaOH.

引用

页码：51 / 64

页数：14

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