Back to Search Start Over

The Influence of Stock Consistency on the Pollution Load in Washing Process

Authors :
Tiantian Chen
Youming Li
Lirong Lei
Mingzhu Hong
Qihui Sun
Yi Hou
Source :
BioResources, Vol 11, Iss 1, Pp 2214-2223 (2016)
Publication Year :
2016
Publisher :
North Carolina State University, 2016.

Abstract

The influences of stock consistency on the kappa number, residual alkali of pulp, flow direction of lignin, chemical oxygen demand, oxidation with dichromate (CODCr), and five-day biochemical oxygen demand (BOD5) in effluents were investigated in a washing process. Compared with 15% stock consistency, 35% stock consistency could lead to a decrease of at least 25% in the consumption of washing water while cutting 75.27% and 46.29% of CODCr and BOD5 in washing effluents, respectively. Moreover, the residual lignin in effluents were reduced greatly from 39.35 g·t-1 to 12.76 g·t-1, which will be beneficial to treatment of washing and bleaching effluent. All the results showed that a higher stock consistency in the washing process could decrease the consumption of washing water, the generation of pollution, and the toxicity in bleaching effluent.

Details

Language :
English
ISSN :
22142223 and 19302126
Volume :
11
Issue :
1
Database :
Directory of Open Access Journals
Journal :
BioResources
Publication Type :
Academic Journal
Accession number :
edsdoj.4f1de4e4004031a8b569ec98bd09c9
Document Type :
article
Full Text :
https://doi.org/10.15376/biores.11.1.2214-2223