Method of Corrosion Prevention in Steel Pressure Pipelines in Sewerage Systems

Problems of sewer pipelines arising due to corrosion and biofouling are analyzed. Currently used methods of corrosion control of steel pressure pipes are designed to eliminate the consequences rather than the causes of surface oxidation. The task of preventing or achieving the lowest possible corrosion damage intensity is to ensure maximum efficiency of the pipeline protection which will increase as a result of economic indicators of the systems under consideration. Contemporary sewage pipelines represent a complicated complex of interrelated structures where various physical, chemical and biological processes take place. The implementation of such processes is not controlled and is accompanied by considerable costs connected in particular with pipeline replacement, repair of the sewage wells, reimbursement of harm done to water handling facilities. Recommendations about the prevention and the protection against the corrosion of existing and sewer pipelines that are being designed are provided. (C) 2016 The Authors. Published by Elsevier Ltd.