Water technology, water supply, waste water treatment

Concentration and enumeration methods of somatic coliphages in water samples

Somatic coliphages are a new indicator for monitoring the efficiency of water treatment and purification in the Directive (EU) 2020/2184 of the European Parliament and of the Council of 16 December 2020 on the quality of water intended for human consumption and in Regulation (EU) 2020/741 of the European Parliament and of the Council from 25 May 2020 on minimum requirements for water reuse.

Change of microbial community in tertiary wastewater treatment

The aim of this contribution is the presentation of partial results of testing tertiary technology for recycling of treated urban wastewater. The obtain water will be used for watering of greenery, playgrounds, or for street cleaning. The quality of the treated water depends on the purpose of the use.

Search for suitable molecular markers for species differentiation of enterococci

Enterococci, together with representatives of the species Escherichia coli, belong to the so-called indicators of faecal pollution, which are used in the evaluation of the microbiological quality of bathing waters. Their determination is governed by the Decree of the Ministry of Health No. 238/2011 Coll. and performed by culture on selective agar media.

Use of Earth remote sensing methods to monitor the condition of bathing sites

The Ministry of Health in cooperation with other related bodies compiles, on an annual basis, the List of outdoor bathing sites on surface waters where the bathing service is offered by the operator, and other surface waters used for bathing. It is compiled based on the long-term monitoring, performed, exclusively as in-situ measurements, by the regional hygiene stations. With respect to the fact that this way of monitoring is not only time-consuming but also financially demanding, the need for minimizing these expenses naturally arises.

Possibilities of combined ways of treatment for selected waste types using an experimental equipment for physical waste treatment with the intention of their further use

This article presents possibilities of a unique device for industrial waste treatment using a patented process, and outlines possible future directions. This device, using different physical processes, individually or in synergy, e.g. combined effects of ultrasonic waves, focused microwave field, arc discharges, electrostatic field and the exposure to ultra-violet radiation, is intended to degrade dangerous substances in waste, reducing its hazardous properties for the environment and to prepare the waste for future applications (material or energy), i.e. separately or in combination with other technology processes, such as biotechnology.

Determination of selected illicit drugs in wastewater using liquid chromatography tandem mass spectrometry

The wastewater-based epidemiology approach to the analysis of illicit drugs was conceptualized in 2001 and for the first time was applied in 2005 for cocaine estimation in Italy. Further, other illicit drugs as heroine, cannabis and amphetamine have been estimated.

Municipal wastewater as a diagnostic medium of the City of Prague

The article informs about regular, almost two-year long monitoring of municipal wastewater at selected sampling points of the Prague sewerage network. Selected illicit drugs (e.g. methamphetamine, MDMA, THC, cocaine), nicotine and its metabolites and the ethanol metabolite ethyl sulphate are monitored in municipal wastewater.

Space-time dynamic of pesticide loading in the drinking water reservoir Švihov

The article deals with space-time dynamic of non-polar and polar compounds load into the drinking water reservoir Švihov in Želivka river basin during the whole vegetation season by passive sampling techniques. The monitoring on the nine tributaries of the Švihov water reservoir and on the raw water inlet to the Želivka drinking water treatment plant took place for eight months from April to November 2018.

Test of sorption filters on the base of granular activated carbon for drinking water cleaning

The contribution presents model tests of sorption efficiency and elimination of organic substances, especially pesticides from five different exposed granular activated carbon (GAC). Results can contribute to the understanding of suitable filter lines for the realized investment project GAC filtration.

Determination of basic typology of elevated water tanks

This paper introduces an initial effort at a systematic approach to the typology of elevated water tanks for the purpose of solving the research project Elevated water tanks – identification, documentation, presentation, new use. It builds on the previous definition of the terminology of the problem and the definition of the object of interest. From a typological point of view, elevated water tanks are seen as an integral part of larger technological units – water supply systems. In the framework of the basic division, the typology of elevated water tanks is based on the selection of parameters – the building situation of the tower reservoirs in relation to other objects, the function of elevated water tanks, the supporting structure, the shape and material of the accumulation tank, the number of tanks and the purpose of the object.

Constructed wetlands clogging

Clogging is a quite natural process, but it is an undesirable phenomenon in artificial wetlands used for treatment and tertiary treatment of wastewaters. Due to this, it is necessary, during proposal preparation and operation of artificial wetlands, to keep the principles that might significantly restrict the rise and progress of clogging.

Use of wastewater­‑based epidemiology for monitoring of illicit drugs consumption in Czech and international context

This paper presents a brief summary of information about the project Determination of the amount of illicit drugs and their metabolites in municipal wastewater – new tool for obtaining of complementary data on illicit drug consumption in the Czech Republic and about the 2nd International Conference on “Wastewater‑based drug epidemiology“, which was held from 11.–15. 10. 2015 in Ascona, Switzerland.

Water quality in drinking water reservoir Švihov on Želivka river and its river basin, with focus on specific organic compounds

River basin of the largest drinking water reservoir Švihov on the Želivka River is distinctly anthropogenically affected both by direct human activities and also by the agriculture. The quality of the surface water is endangered in long-term period mainly by the eutrophication, pesticides pollution and erosion.