Comparative hygienic assessment of hard water impact before and after its stabilization treatment on the functional state of the central nervous system and kidneys of rats (on the example of the Olkhovska water treatment plant, Ukraine)

Zahorodniuk, Kostiantyn; Nikipelova, O. M.; Żukow, Walery; Gushcha, Sergеy; Zahorodniuk, Yuriy; Насибуллін, Б. А.

doi:10.12775/eq.2020.0002

Cited by 2 publications

(1 citation statement)

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“…Результати досліджень [3] засвідчили, що під час транспортування води з підвищеною корозійною агресивністю, її якість суттєво погіршується, особливо за ЗМЧ (загальне мікробне число), органолептичними показниками (кольоровістю, каламутністю, запахом, присмаком), вмістом заліза, цинку, перманганатною окиснюваністю, вмістом ТГМ (тригалогенметанів) тощо. Крім того, було показано [4,5], що корозійна агресивність та стабільність води впливають на біологічну активність та ступінь токсичності ТГМ при їх надходженні з питною водою до організму піддослідних тварин та людини.…”

Section: вплив хемолітотрофної мікробіоти на ефективність антикоро-зійної обробки сталевих трубопроводів орто-поліфосфатними реагентами нunclassified

Influence of Hemolitotrophic Microbiota on the Efficiency of Anticorrosive Treatment of Steel Pipelines With Ortho-Polyphosphate Reagents on the Example of “Sea Quest Liquid”

Matseliuk¹,

Charnyi²,

Kovalenko³

et al. 2021

Geohìm. tehnog.

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It is noted that the overwhelming majority of water supply systems operating in Ukraine are made of steel or cast iron, which are subject to corrosion. It has been established that/ one of the ways to reduce the corrosiveness of drinking water is the use of an orthopolyphosphate preparation “SeaQuest Liquid” (TU U 20.5-V 0502222-001:2017). The results of studies of the effect of the “SeaQuest Liquid” preparation on organoleptic and physicochemical indicators of drinking water are presented. It was determined that the treatment of tap drinking water with the “SeaQuest Liquid” preparation does not affect organoleptic indicators, the average levels of which practically did not undergo significant changes during 5 months of observation and were within the hygienic standards. In water samples, the levels of substances that make up the “SeaQuest Liquid” preparation (polyphosphates, orthophosphates) were within the normative values. The quality of water treated with the “SeaQuest Liquid” orthophosphate preparation, according to the main sanitary and chemical indicators, except for iron, meets the requirements of the hygienic standards DSanPiN 2.2.4.171-10. In some water samples, the iron content in water exceeded the hygienic standard (0.2 mg/dm3) and went beyond the maximum permissible level (1.0 mg/dm3). Under the action of “SeaQuest Liquid” in water treated with sodium hypochlorite, a decrease in the Langelier index was observed: from -2,23 to -2,08 and from -1,79 to -1,70, which indicates a decrease in its corrosivity. In water untreated with sodium hypochlorite under the influence of the “SeaQuest Liquid” preparation, a slight increase in the Langelier index was observed: from -1,80 to -1,95 and from -1,85 to -2,78, from -2,01 to -2,13, which indicates an increase in its corrosiveness. In the presence of sulphate-reducing and thiobacteria in water, the “SeaQuest Liquid” preparation increases the corrosion rate of steel by 2,9-7,2 times; subject to additional disinfection of water with sodium hypochlorite, it reduces this indicator by 1,4-2,7 times.

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