Specific characteristics of phosphorus removal in biological wastewater treatment

Summary

It is shown that in using chemicals for deep phosphorus removal in biological wastewater treatment or effluent polishing one must take into account the effect of added metal ions on biological treatment process. A technique is suggested for estimating chemical consumption depending on the selected flow scheme of biological and chemical treatment; adjusting factors with account of this effect are given.

Key words

wastewater , biological treatment , aluminium salts , chemical treatment , biogene substances , phosphates , total phosphorus , chemicals , ferrum salts