Addressing the upgrade of surface runoff treatment facilities

Summary

The results of studies and seasonal observations, estimation of the process parameters of the operation, and development of recommendations for improving the operation of the systems of collection, transportation, treatment and disposal of surface runoff from industrial sites and highways are presented; the studies were carried out by the laboratory for municipal, industrial and rainfall runoff and sludge. The studies have been carried out during 20 years at the operating treatment facilities built upon the project of «MosvodokanalNIIproject» JSC at different industrial enterprises. The research methodology consisted in monitoring the quantitative parameters of the incoming surface runoff, its composition and properties as well as the efficiency of pollution elimination at every stage of the process flow scheme. The concentrations of pollutants in the surface runoff were chemically determined with the use of laboratory analytical instruments against the following parameters: settling and suspended substances, oil products, chemical oxygen demand, synthetic surfactants, and heavy metals. Besides, during the studies the mechanical properties and chemical composition of oil slurry and sludge generated in the process of surface runoff treatment were studied. Based on the summarized experience of operating the treatment facilities the criteria characterizing the basic indicators of the process solutions and equipment efficiency have been developed. The technical solutions that provide for upgrading the operated treatment schemes and meeting the required standards of the surface runoff treatment before discharge to the water bodies are proposed.

Key words

sludge , surface runoff , industrial project , operation of treatment facilities , oil slurry , standard of effluent discharge to the water bodies