Drinking water quality research and improvement measures

The dissertation examines drinking water quality and improvement measures. The object of the work is a groundwater with ammonium ions and concentrations of iron, manganese and organic compounds that exceed permissible drinking water hygienic standards. The aim of the work is to examine drinking water treatment technologies. There are objectives: to carry out a comparative analysis of methods for organic compounds determination; to determinate organic compounds fractions in groundwater; to investigate the efficiency of three coagulants and possible applications of filter media in removal of ammonium ions, iron, manganese and organic compounds from groundwater. Under field conditions, to examine drinking water treatment technology.

The dissertation is comprised of an introduction, three chapters, conclusions and recommendations, a bibliography and a list of the author's published works. The introduction discusses the research problem and the topicality of the work; it also describes the object, formulates the aim and the objectives of the work and describes the methodology of research, scientific novelty of the work, practical value and defended propositions. In the end of the introduction, the list of published works on the topic of the dissertation by the author and the papers read in the conferences are provided as well as the structure of the dissertation.

The first chapter is the review of literature. Water quality parameters and improvement measures are provided. In the end of the chapter the conclusions are formulated and the objectives of the dissertation are revised.

The second chapter provides the methodologies for water quality parameters determination. Laboratory tests methodology for evaluation of possible applications of filter media is described and the work of the drinking water treatment plant setup under field conditions is presented.

The third chapter provides the comparative analysis of methods for organic compounds determination, the results of identification tests of organic compounds fractions, the test results of coagulants efficiency, the test results of the possible applications of filter media and the test results of the work of drinking water treatment plant setup under field conditions.

12 scientific papers have been published on the topic of dissertation: two of them in scientific journals referred in the ISI Web of Science database, four in scientific journals included in other databases, one in conference proceedings referred in the ISI Proceedings database, four in foreign international conference proceedings, one in Lithuanian conference. The results of the investigations carried out for the dissertation have been published in one national and five international scientific conferences.

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DOI: https://doi.org/10.20334/2123-M