ACTIVATED-SLUDGE TREATMENT OF MECHANICAL PULP-MILL EFFLUENTS CONTAINING SULFITES

Authors
PAICE MG ELLIOTT A YOUNG F DORICA JG
Citation
Mg. Paice et al., ACTIVATED-SLUDGE TREATMENT OF MECHANICAL PULP-MILL EFFLUENTS CONTAINING SULFITES, Pulp & paper Canada, 97(9), 1996, pp. 88-93
Citations number
20
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Pulp & paper Canada → ACNP
ISSN journal
03164004
Volume
97
Issue
9
Year of publication
1996
Pages
88 - 93
Database
ISI
SICI code
0316-4004(1996)97:9<88:ATOMPE>2.0.ZU;2-H
Abstract
Effluent from a CMP/newsprint operation was treated in two parallel la boratory scale AS systems. Removal of BOD and RFA in excess of 90% was achieved with a hydraulic retention time (HRT) of 24 hours. Sulphite was oxidized rapidly to sulphate and treated effluents were free of ac ute toxicity. In batch experiments, biological treatment produced the removal of sulphite and toxicity at an HRT of around 12 hours. Under t hese conditions, toxicity and sulphite were removed more rapidly than BOD.