Tag:microbiological analysis

№9-1|2011

POTABLE WATER SUPPLY

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UDC 628.112.23:628.147.22

Karmalov A. I., Filimonova S. V.

Analysis of Сauses of Colmatage and Corrosion of Water-Intake Well Equipment under Conditions of Increased Anthropogenic Load

Summary

In the course of operation of water intakes from underground sources the problems associated with the processes of fouling and corrosion of the metal equipment of artesian wells inevitably increase. The intensity of deposit formation and corrosion development on the well equipment depends on the well output, the chemical composition of ground water, the presence of methane-producing and other bacteria generating an extremely active corrosion medium. Monitoring of the chemical composition and microbiological analysis of ground water make it possible to identify the causes of colmatage and corrosion of metal-containing elements of the wells under the conditions of the increased anthropogenic load, which further facilitates the selection of methods of struggle against these phenomena.

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№5|2013

POTABLE WATER SUPPLY

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УДК 628.16:504.064

Sokolov D. M., Netchayev D. N.

Petrifilms (3M™ Petrifilm™) – innovative test-systems for microbial water quality monitoring

Summary

The specific features and benefits of the express method of microbiologic water quality monitoring with 3М™ Petrifilm™ are considered. 3М™ Petrifilm™ is an advanced medium standard used in Russia and abroad for microbiologic monitoring of food products, beverages and water quality. The 3М™ Petrifilm™ shelf life as long as dehydrated culture media; at the same time 3М™ Petrifilm™ is much easier to use. One of the main advantages of 3М™ Petrifilm™ is that there is no stage of culture media preparation. The main types of The 3М™ Petrifilm™ Aqua Plates for water testing are tests for determination of the number of heterotrophic bacteria (total microbial count), coliforms and enterobacteria (glucose-positive coliform bacteria), yeast and mold. The target microorganisms are determined from the growth on the selective medium, occurrence of acidification zone and gas formation. 3М™ Petrifilm™ Aqua Plates ensure valid and reliable results of analyzing drinking water by direct inoculation and membrane filtration.

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