Methods for reducing color and oxidability of natural waters

International Conference on Construction, Architecture and Technosphere Safety 2018

土木建筑工程

Nikolaenko, E.V.^1 ; Arkhipova, L.M.^1

Architecture and Construction Institute, South Ural State University, Lenin Avenue, 76, Chelyabinsk

454080, Russia^1

关键词: Combined loading;    Granulated activated carbons;    Natural waters;    Open sources;    Oxidizability;    Regulatory requirements;    Water oxidation;    Water quality indicators;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/451/1/012219/pdf
DOI  :  10.1088/1757-899X/451/1/012219

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The qualitative indicators of natural waters of the open source of drinking water supply have been studied. The discrepancy with the regulatory requirements for such indicators as color and oxidability has been established. With the aim of reducing the color and oxidation of natural water, oxidative-sorption methods have been investigated. Based on the water quality indicators of the source, a non-reagent scheme of water treatment has been preliminarily proposed, including the filtration on sorption loads with preliminary chlorination of water with a dose within the limits of chlorine absorption. Such materials as quartz sand, granulated activated carbon of the brand "PUROLAT-ACTIVE", anthracite of the brand "PUROLAT-standard" and garnet have been investigated as possible loads for filtering plants. It has been established that effective reduction of water color in all considered periods of the year is achieved on a combined loading of "quartz sand - activated carbon". However, this loading has not shown the necessary reduction in oxidizability, in all series there has been an excess of regulatory requirements for this indicator. The best result for reducing water oxidation has been achieved on a two-layer load of "quartz sand - anthracite", which, according to the combined improvement of water quality indicators, has been recognized as the most effective.