№7|2013

WASTEWATER TREATMENT

bbk 000000

UDC 628.345.1

Rublevskaya O. N., Kolosov D. E., PANKOVA G. A.

Substantiating the use of aluminium sulfate for the elimination of phosphorus from wastewater at the Saint-Petersburg wastewater treatment facilities

Summary

The article opens a series of three articles dedicated to the introduction of aluminium sulfate as a chemical for chemical removal of phosphorus compounds from wastewater. The urgency of the task of eliminating nutrients from wastewater is described; the primary concern of removing phosphorus for the protection of water bodies from eutrophication is substantiated. A short literature review including the practice of chemical removal of phosphorus from wastewater in USA and European Union is presented. Special features of the basic chemicals – calcium, aluminium and iron compounds – essential for the practical application of chemical removal of phosphorus are described. The second article will present the evaluation of the toxicity of aluminium and iron compounds; the results of investigating the impact of iron and aluminium salts on the aeration tank biocenosis and sludge mixture dewaterability will be discussed. The third final article will present a detailed report on the introduction of aluminium sulfate as a chemical for chemical removal of phosphorus compounds from wastewater at the Saint-Petersburg wastewater treatment facilities.

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