efficiency of a biological activated sludge effluent treatment plant with extended aeration

The extended-aeration activated sludge process was chosen by a Finnish company to treat pulp mill effluents. Results obtained since the treatment plant was commissioned in early 1986 had been very satisfactory. As well as reducing BOD and suspended solids, the process had reduced chlorinated phenols...

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Bibliographic Details
Published in:Water science and technology 1988, Vol.20 (1), p.65-72
Main Authors: Skogman, R, Lammi, R
Format: Article
Language:English
Subjects:
Activated sludge
Aeration
biological techniques
chemical oxygen demand
Chlorination
chlorine
Closed systems
Efficiency
Effluent treatment
Effluents
Extreme values
Forest products
Forest products industry
Molecular weight
oxygen requirement
Phenols
Production capacity
pulp and paper mill effluents
Pulp mill effluents
Reduction
Sedimentation & deposition
Sludge
Suspended particulate matter
Suspended solids
Wastewater treatment
Water authorities
Water treatment
Water utilities
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Description
Summary:The extended-aeration activated sludge process was chosen by a Finnish company to treat pulp mill effluents. Results obtained since the treatment plant was commissioned in early 1986 had been very satisfactory. As well as reducing BOD and suspended solids, the process had reduced chlorinated phenols markedly. Other higher molecular weight chlorinated substances were also removed by the plant, which was situated at the company's Jakobstad mill.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1988.0009