Causes for Variable Phosphorus Needs in Pulp and Paper Activated Sludge Systems, 1999 Environmental Conference Proceedings

Michael G. Richard

Colorado State University

The Sear-Brown Group

Effluent phosphorus limits have become common for pulp and paper activated sludge systems in the US and Canada. Meeting effluent phosphorus limits has been a problem for some of these systems. Filamentous and polysaccharide sludge bulking have occurred in systems attempting to meet effluent phosphorus limits, due to too little phosphorus for good sludge biology. The required phosphorus for good sludge quality is not a constant, rather is a variable dependent on a number of factors. This paper discusses the most significant of these factors: system sludge age, systemtemperature, wastewater composition, treatment system configuration, and wastewater chemistry.

Author: Richard, M.G.
Causes for Variable Phosphorus Needs in Pulp and Paper Activ
Causes for Variable Phosphorus Needs in Pulp and Paper Activated Sludge Systems, 1999 Environmental Conference Proceedings
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