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Treatment of the Railway Freight Wagon Wash Effluents by Coagulation Methods on Accelator Reactor by Żak, Sławomir (author);Rauckyte-Żak, Terese (author) is a Environmental Science article available to read on EtoBox.

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## Abstract This paper presents results of the research carried out on a system made to pretreat the effluents produced in water treatment of dirty surfaces of railway transportation means (RTMs) mainly G, H, T and incidental F classes of rolling stock according to the International Union of Railways (IURs). The installation was designed for coagulation–flocculation pretreatment of wastewater with flow accelator reactor (AR) in total amount of up to 75.0 m^3^ day^−1^. The raw wastewater (RW) was characterized by a significant diversity of loads: TSS (total suspended solids), TDS (total dissolved solids), COD & BOD~5~ (chemical & biochemical oxygen demand) and periodically it had extremely different colors, T~a~ (turbidity) and EE (etheric extract). The application of two-stage, coupled acid-alkali or alkaline-acid coagulation using aluminum coagulants with final flocculation and phase separation in the system implemented in practice to treat the wastewater of statistically typical composition, usually allowed to removal, accordingly: EE & TSS > 99% and to eliminate completely color and T~a~. However, COD and BOD~5~ were removal at different levels, depending on both initial concent

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Author

Żak, Sławomir (author);Rauckyte-Żak, Terese (author)

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)