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