FACTORS AFFECTING THE BIOLOGICAL PHOSPHORUS REMOVAL EFFICIENCY

Abstract

This paper reviews the most important factors having effect on the efficiency of enhanced biological phosphorus removal. The influent sewage characteristics relevant to the topic are discussed. The possibilities to avoid the impairing effects of nitrates in the anaerobic zone are overviewed. The problems arising from inadequate secondary clarifier performance and sludge processing are considered. The importance of the compartmentalization and plug-flow type anaerobic reactor are pointed out.