Treatment of APMP pulping effluent based on aerobic fermentation with Aspergillus niger and post-coagulation/flocculation

被引：29

作者：

Liu, Tingzhi ^{[1
,2
]}

He, Zhibin ^{[2
]}

Hu, Huiren

Ni, Yonghao ^{[2
]}

机构：

[1] Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin Econ & Technol Dev Area, Tianjin 300457, Peoples R China

[2] Univ New Brunswick, Limerick Pulp & Paper Ctr, Fredericton, NB E3B 5A3, Canada

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 07期

关键词：

APMP effluent; Aspergillus niger; Biological pretreatment; Coagulation; Flocculation; MILL EFFLUENT; RESIN ACIDS; WASTE-WATER; COAGULATION; REMOVAL; PAPER; REACTOR;

D O I：

10.1016/j.biortech.2011.01.047

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A novel two-stage biological/flocculation process was developed for treating the pulping effluent from the alkaline peroxide mechanical pulping (APMP) process. In the first biological stage, the aerobic fermentation by using Aspergillus niger can decrease the chemical oxygen demand (COD) by about 60% while producing about 7 g/l of solid biomass. In the second stage (post-coagulation/flocculation), the residual COD, turbidity and color, can be further decreased by using alum and polyacrylamide (PAM). The overall removal efficiencies of COD, color and turbidity from the APMP pulping effluent by the above two-stage biological-coagulation/flocculation process were 93%, 92% and 99%, respectively, under the conditions studied. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4712 / 4717

页数：6

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