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- ItemUsing artificial neural network models to assess water quality in water distribution networks(Elsevier, 2014-04-30) Cuesta Cordoba, Gustavo Andres; Tuhovčák, Ladislav; Tauš, MiloslavThe purpose of the research is to assess chlorine concentration in WDS using statistical models based on ANN in combination with Monte-Carlo. This approach offers advantages in contrast to the generally use methods for modeling of chlorine decay in drinking water systems until now. The model was tested on one specific location using the hydraulic and water quality parameters such as flow, pH, temperature, etc. The model allows forecasting chlorine concentration at selected nodes of the water supply system. The results obtained in these selected nodes allow then to compare the chlorine concentration with EPANET in the system under assessment.
- ItemOptimizing Sludge Management at the Municipal Solid Waste Incinerator—A Case Study(MDPI AG, 2018-08-06) Raček, Jakub; Anferova, Natalia; Hluštík, Petr; Hlavínek, PetrSludge disposal is becoming an issue at the municipal solid waste incinerator (MSWI), especially for environmental and economic reasons. This paper describes a case study of the optimization of the sludge management (SM) system at the MSWI in the Czech Republic. The original concept of SM at MSWI was designed as waste-free. However, the present operation indicates that there is a need to carry out regular extraction and disposal of sludge settling at the bottom ash tank and the bottom of the retention basin. The current status of SM causes problems not only in terms of operation but it also entails significant financial costs given the necessary regular cleaning of tanks. The aim of the applied research presented in this paper is SM optimization by a mobile sludge dewatering (DW) press unit with optimal polymer combination for DW.
- ItemWater quality comparison for various drainage systems for 2000 equivalent population(IOP Publishing, 2020-02-07) Hluštík, Petr; Raclavský, JaroslavThe article deals with the comparison of wastewater quality in gravity and alternative drainage systems. The gravity drainage systems include combined and sanitary sewerage systems, the alternative systems encompass pressure and vacuum sewerage systems. The difference in the quality of wastewater conveyed to a wastewater treatment plant is influenced by the relevant sewerage system, its technical condition and regular maintenance. The objective of the article is to highlight the differences in wastewater quality with respect to BOD, COD, SS, NH4, Nt and Pct indicators based on the chemical analyzes conducted over several years of operation. The comparison is made for selected municipalities in the Czech Republic in 2005-2019 for various sewerage systems.
- ItemMain parameters of a wastewater treatment plant up to 2000 PE in the Czech Republic(IOP Publishing, 2020-02-07) Hluštík, PetrThe article deals with optimising the design parameters of wastewater production and specific pollution production in wastewater treatment plants up to 2,000 PE. The objective of this article is to determine more precise design values applicable to WWTP calculations and different drainage systems on the basis of statistical evaluation of individual water quality indicator analyses.
- ItemTechnical condition of sewer networks in the Czech Republic(IOP Publishing, 2021-12-15) Hluštík, Petr; Singrová, VeronikaThis article offers a comparison of the detected defects in sewerage systems operated by water companies and by self-operators, determines their quantity and classifies them into individual categories. The determination of the number of the defects at self-operators is evaluated on the basis of performed camera inspections and compared with data provided by the water company.