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Evaluation of the quality of the water produced in the Central Water Treatment Plant Filters in Warsaw. Is it possible to opt out of chemical disinfection?

Anna Olejnik

Abstract

The aim of the study was the analysis of water quality parameters reported, treated, and delivered to recipients in one of the water treatment plant in Warsaw. Evaluation of parameters characterising of the content of organic matter in water was conducted with a view to maintain biological stability of water in the water supply system. The supplemental elements of the study were the experiments in the pilot section, in a simulated, adverse conditions of system’s work, aiming to assess the changes in quality of provided water during periods of stagnation in the water supply system. Assessment of the efficiency in removal of organic matter contained in water was executed on the basis of the following indicators characterising organic compounds: dissolved organic carbon (DOC), UV absorbance, colour and permanganate index. Analysis of the subsequent stages of water treatment made it possible to evaluate how much organic matter is being removed at each and every stage of the water treatment and if the level of reduction is sufficient to obtain water biologically stable, which is a precondition to be able to resign from chemical disinfection of water. As a part of identification of the fraction of organic carbon an analysis of concentration of carboxylic acids, which are a substantial part of absorbable organic carbon and directly influence derivate development of bacteria in water, has been conducted. It was alleged that an essential factor impacting the maintenance of biological stability of water is the rise of temperature above 15 oC. For that reason at the current technological capabilities of SUW Filters resigning from usage of chemical disinfection is impossible. What is more, areas for the process of reducing the content of DOC in the treated water have been identified.
Record ID
UAMcbe2c428ed62458e88eb787b5011f845
Diploma type
Doctor of Philosophy
Author
Anna Olejnik (SNŚ/WC/LoAC) Anna Olejnik,,
Title in Polish
Ocena jakości wody produkowanej w Zakładzie Centralnym SUW Filtry w Warszawie. Czy możliwa jest rezygnacja z dezynfekcji chemicznej?
Title in English
Evaluation of the quality of the water produced in the Central Water Treatment Plant Filters in Warsaw. Is it possible to opt out of chemical disinfection?
Language
pl Polish
Certifying Unit
Faculty of Chemistry (SNŚ/WC/FoC)
Discipline
chemistry / (chemical sciences domain) / (physical sciences)
Scientific discipline (2.0)
6.5 chemical sciences
Defense Date
16-08-2018
End date
16-08-2018
Supervisor
URL
http://hdl.handle.net/10593/23669 opening in a new tab
Keywords in English
water quality, natural organic matter, biological stability of water, dissolved organic carbon, assimilable organic carbon
Abstract in English
The aim of the study was the analysis of water quality parameters reported, treated, and delivered to recipients in one of the water treatment plant in Warsaw. Evaluation of parameters characterising of the content of organic matter in water was conducted with a view to maintain biological stability of water in the water supply system. The supplemental elements of the study were the experiments in the pilot section, in a simulated, adverse conditions of system’s work, aiming to assess the changes in quality of provided water during periods of stagnation in the water supply system. Assessment of the efficiency in removal of organic matter contained in water was executed on the basis of the following indicators characterising organic compounds: dissolved organic carbon (DOC), UV absorbance, colour and permanganate index. Analysis of the subsequent stages of water treatment made it possible to evaluate how much organic matter is being removed at each and every stage of the water treatment and if the level of reduction is sufficient to obtain water biologically stable, which is a precondition to be able to resign from chemical disinfection of water. As a part of identification of the fraction of organic carbon an analysis of concentration of carboxylic acids, which are a substantial part of absorbable organic carbon and directly influence derivate development of bacteria in water, has been conducted. It was alleged that an essential factor impacting the maintenance of biological stability of water is the rise of temperature above 15 oC. For that reason at the current technological capabilities of SUW Filters resigning from usage of chemical disinfection is impossible. What is more, areas for the process of reducing the content of DOC in the treated water have been identified.
Thesis file

Uniform Resource Identifier
https://researchportal.amu.edu.pl/info/phd/UAMcbe2c428ed62458e88eb787b5011f845/

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