Effect of Biological Treatment on Characteristics of Soluble Organic Compounds in Hardwood KP Bleaching Effluent

被引：0

作者：

Lei, Lirong ^{[1
,2
]}

Chen, Saiyan ^{[1
,2
]}

Li, Youming ^{[1
,2
]}

机构：

[1] S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] S China Univ Technol, Natl Engn Res Ctr Papermaking & Pollut Control, Guangzhou 510640, Guangdong, Peoples R China

来源：

BIORESOURCES | 2013年 / 8卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Hardwood; Pulp-mill effluent; Biological treatment; Recalcitrant organic compound; Color; MOLECULAR-WEIGHT; LIGNIN; PULP; DEGRADATION; REDUCTION; REMOVAL; OZONE; COLOR; COD;

D O I：

暂无

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：

Hardwood KP bleaching effluents, before (influent) and after (effluent) biological treatment, were characterized and compared to identify the main bio-recalcitrant organic compounds in the effluent. The results indicate that biological treatment reduces CODcr and BOD5 by 67% and 88%, respectively. However, various bio-recalcitrant organic compounds were still retained in the biologically-treated effluent, which exhibits an increase in effluent color. Spectroscopic analysis suggests that colored substances are the most recalcitrant materials in the effluent. Di-n-octyl phthalate and 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol are the predominant residual materials in the biologically treated effluent. These two materials are the main recalcitrant organic compounds in the effluent and contribute to the major part of the residual CODcr in the biologically treated effluent.

引用

页码：4349 / 4358

页数：10

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