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.
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.
A proposal for a complete amendment to Directive 98/83/EC on the quality of water intended for human consumption was approved in February 2020. The new Directive came into force after all official procedures on 16 December 2020.
It is shown in the article, how the revision of the Czech methodical standard for abioseston analysis in water ČSN 75 7713 from December 2015 and the lowering of the limit value for abioseston in the Decree No. 252/2004 Coll. (drinking water quality) from 10 to 5% influenced results of routine laboratories.
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.
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.
Microorganisms are a very important and admirable part of the living nature system. Their importance is associated mainly with the impact on human health, ie with medical microbiology. On the topic of an interview with microbiology microbiologist RNDr. Dana Baudišová, Ph.D.
Monitoring of the coronavirus SARS-CoV-2 in wastewater – what the monitoring has shown us so far and where it is headed
Since April 2020, the presence of the coronavirus SARS-CoV-2 in wastewater has been monitored at TGM WRI, p.r.i. The method of detection is similar to that of clinical samples, ie the presence of a specific fragment of viral RNA is detected by PCR.
Surface Water Status Assessment for the Third Cycle River Basin Management Plan of the Czech Republic
The aim of this article is to acquaint the professional public with the summary results of the assessment of chemical status and ecological status/potential of surface water bodies “river” and “lake” categories in the Czech Republic for 2016–2018. This assessment is one from the basis for preparation of the Third River Basin Management Plan (2021–2027) at all its levels: sub-basin plans, national plans, and international plans of the Elbe, Danube, and Oder river basin districts.
The paper deals with the issue of pollution of river (bottom) sediments in the Odra river basin, which is located in one of the most anthropogenically polluted areas of the Czech Republic. The presented results are based on the evaluation of river sediments collected on eight selected profiles of water bodies belonging to the Odra river basin using a battery of five ecotoxicological tests including indicator organisms of different trophic levels.
Interview with prof. Dr. Ing. Jiří Maryška, CSc., an expert in the field of nanomaterials, on the topic of using nanomaterials technology in wastewater treatment.
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.
The trajectory of wetlands development in the upper part of the Výrovka river basin over the last 180 years
The article is focused on analysis of the change of wetlands coverage and the representation of various types of wetlands in the upper part of the Výrovka river basin over the last 180 years. The historical maps of the Stable Cadastre, current orthophotographs and GIS layers of actual localization and classification of different types of land cover were used as data sources.
The VTEI Journal is a scientific and technical journal in the field of water management and related fields. This year, it introduced the use of two international identifiers that increase the “visibility” of published articles and their authors. These identifiers are the Digital Object Identifier (DOI) and the Open Researcher and Contributor ID (ORCID).
Waterwork Vranov was completed in 1934, where at that time innovative technology of Johnson-type and cylinder regulating valves was used. During their operation, they did not require major repairs, only routine maintenance and minor repairs was made.
An interesting and useful topic that can be addressed within the European Union is the issue of transboundary aquifers. Groundwater is often used as an important water resource on both sides of a common state border and can therefore be affected by cross-border waters.
Evaporation from water surface significantly affects the overall hydrological balance of a river basin. Direct measurement of evaporation is complicated and not as common as the measurement of other quantities (e.g. precipitation or air temperature). Therefore, evaporation is often determined using formulas requiring available meteorological quantities as input data.
Interview with TGM WRI employees who came from abroad and decided to build their careers in the Czech Republic. The interview brings differences between study and employment abroad and in the Czech Republic in the field of water management.
Drought and water shortages are concepts that need to be spaced properly differentiate. Drought is a temporary decrease in water availability and is considered a natural phenomenon. Drought is characterized by its gradual onset, considerable area and long duration.
This year it has been exactly one and a half centuries since the issue of the Czech Provincial Act No. 71/1870, about how water can be used, collected and defended.
Comparing various methods for determining the water footprint of electricity generation at Orlík hydroelectric power station – case study
A large part of the world’s population does not have access to quality water resources in sufficient quantities. Therefore, comprehensive methods for assessing water use have been developed in recent years. One is the water footprint, which allows expression of the total amount of water consumed to produce a product or service.
Nanomaterials have attracted great attention in diverse areas because of their unique properties. One of the possible nanofiber applications, due to their high surface area, is a biomass carrier, thus the immobilization of the microbial cells followed by the biofilm formation.
The relationship between economic development and stream water quality in the Czech Republic between 1975 and 2019 was assessed based on an Environmental Kuznets Curve (EKC) model using two main organic pollution indicators: Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD).
This article presents easily accessible archive maps that provide an overview of the historical location of wetlands and they are also suitable for GIS analysis.
Impact of the Nuclear power plant Temelín on concentration of selected radionuclides in the hydrosphere
The paper presents results and interpretation of long-term monitoring of occurrence and behaviour of selected radionuclides in the vicinity of the Temelín Nuclear Power Plant (Temelin NPP).
A computational algorithms used for improvement of the system for continuous monitoring of radioactive contamination of surface waters
The article describes practical aspects of the NASVD algorithm application in the processing of gamma spectra from the network of stations for continuous monitoring of gamma activity in river water (SAGMA).
Interview with RNDr. Hana Mlejnková, Ph.D., on the topic of SARS-CoV-2 in wastewater, if is it possible to become infected from wastewater and will monitoring continue?
According to the family’s announcement, a long-term employee of the Brno Branch of the TGM Water Research Institute, Ing. Zdeněk Šunka died.
The paper presents the results of hydraulic research of flow through bridge structure with free water surface and submerged inlet on a physical model. It compares current knowledge with measured data and discusses the differences.
The water quality monitoring of selected streams in Prague (which harbour in their catchment area natural bathing places) during 2018–2019 included also the monitoring of two hydrobiological indicators; the phytobenthos and macroinvertebrates communities.
Water quality monitoring has a much shorter history in the Czech Republic (CR) than water quantity monitoring. Yet the quality of water resources is crucial for society, industry and agriculture.
The paper provides actual clear information about viruses and coronaviruses, including SARS-CoV-2, the possibility of contamination of surface water and wastewater by this virus.
Simulation of the restoration of the meander Jordan of the Orlice River and its impact on the adjacent quaternary aquifer
An urgent issue of the water management institutions in the Czech Republic is enhancement of the water retention in the environment. One of the solutions presented by Elbe river basin authority is restoration of the meander Jordan of the Orlice River.
Interview with JUDr. Vratislav Janda, Nestlé’s Director of Corporate Affairs for the Czech Republic on waste, water consumption and environmental sustainability.
By Resolution No. 289 of 29 April 2019, the Government of the Czech Republic approved the Action Plan for the Implementation of the National Strategy for Open Access to Scientific Information of the Czech Republic.
Environmental protection is one of the important societal needs. Appropriately oriented applied research is also necessary for its fulfillment.
According to the family’s announcement, a long-term employee of the Brno Branch of VÚV TGM died on 13 February 2020, whose lifelong work in the field of water management culminated in ten years of activity as the General Director of the Morava River Basin District.
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.
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.
The report presents a part of the Clean Water – Healthy City project, which deals with the assessment of the river sediments quality with view of the load of priority and priority hazardous substances (PPH substances) which may endanger the aquatic ecosystems and human health during the flood.