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.
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.
Social-economic and safety risks in area are one of the main topics in these days, which in the long term affect the stability of local societies. For identification of these risks, we can use modern technology of data collection based on the analysis of illicit substances in city wastewater, as the cities are a high-risk areas from the social perspective in the Czech Republic.
Interview with RNDr. Marek Liška, Ph.D., Head of the Laboratory Department of the Vltava River Basin on the topic of water quality, micropollutants and other interesting points.
An overview and information on professional events organized by Czech Scientific and Technical Water Management Society in 2020 brings this article.
On 23 January 2020, a long-term employee of the T. G. Masaryk Water Research Institute, p.r.i., prof. Ing. Pavel Gabriel, DrSc., Dr. h. c. passes away.
The quality of sediment in shallow water bodies – long-term screening of sediment in the Czech Republic
This article presents the long-term screening results from the 2011–2019 period. Database of results contains approximately 230 localities. More than 80% of the samples were taken from fishponds.
The article presents the results of the evaluation of the fishpond dams shape in the region of Kostelec and Kouřim in the Central Bohemian Region. The shape of the dams was assessed on the basis of a detailed digital terrain model derived from the data of Digital Relief Model of 5th Generation.
Growth and decline of fishery in Poděbrady and Nymburk Estates from the point of view of historical hydrology
This contribution presents a current occurrence of drought periods and declines of fishponds (including entire fishpond systems), in Poděbrady and Nymburk counties. Such relation is not straightforward, when we consider fishponds as reservoirs of water and energy.
The article focuses on the identification of fishponds dawn on the maps of the 1st Austrian Military Survey. The presented analyses are based mainly on manual work with old maps, because the maps used for the study lack the precision and detail needed for automated processing in the GIS environment.
Series of 16 fishponds was monitored as a part of a drainage basin of Hracholusky reservoir, which is subject of a recovery project. All the fishponds were eutrophic – hypertrophic due to wastewaters from villages and little cities (including overflows from sewers) and/or due to too intensive production of “hunters ducks” – the phenomenon that is rarely mentioned.
Fidings from testing of selected biochemical products to the heritage sites water elements environment adjustment
The article is focus on the presentation of knowledge from testing of selected biochemical preparations for the treatment of the environment of water elements of historical gardens and parks and cultural monuments.
Ponds have been mentioned very often in recent years in connection with the prevention of negative consequences of drought. They are cited as one of a wide range of measures.
Interview with the director of the Secondary Fishing School in Vodňany Ing. Karel Dubský on the topic of fish farming, anniversary of the secondary fishing school and much more.
On January 13, 2020, Mgr. Josef Smrťák, long-time editor of VTEI magazine, passed away.
On the twenty-fourth of November, at the end of last year, Ing. Pavel Horák, CSc., who worked at our research institute at the Brno branch for almost forty years, died.
This paper presents several cases of unrealized elevated water tank projects in the Czech Republic. It deals with the technical solution of unrealized objects and at the same time presents the reasons why the designers, official bodies or investors led to the search for another solution.
A rainfall simulator is a common laboratory tool for soil erosion research. Typical objective of the rainfall experiments is the evaluation of various factors on soil erosion processes, such as the effect of rainfall intensity, rainfall duration, soil characteristics, soil management, crop residues on the soil surface, plot’s slope and length.
The article provides information on the development of the NAVAROSO expert information system built for the needs of components active in the event of an emergency situation on the water. It provides the cross-linked data needed to quickly obtain information on the possible causes of deterioration in water quality, procedures to determine the type of pollution and estimate its spread in the watercourse.
The Clean Water – a Healthy City: The usability of the existing information collection system to fulfillment of goals
The contribution is part of the Clean Water – a Healthy City project, which deals with the prediction of the possible occurrence of hazardous chemicals during the accidental pollution and floods. Lists the databases that are currently on the subject and with their practical applicability.
This paper reports on the structure of the autonomous station for monitoring artificial gamma activity in surface water bodies for the purposes of emergency preparedness of the Czech Republic. A simple design based on the NaI(Tl) submersible detector powered by a combined solar and wind source has been employed.
Management of each municipality, region or state needs for its decision-making and planning basic input data, which prove actual facts. The easiest way to obtain data on production and waste management is to monitor at pre-set regular intervals.
The paper deals with the results of measurements of the weirs suitable for measuring small or minimal discharge. The research is focus on determination of the discharge coefficients for low weir heads. The results of measurements for triangular, rectangular and circular weir are present.
The article submits a bibliometric analysis concerning water footprint articles released in the Czech Republic and abroad. The introduction presents the water footprint and its development. For bibliometric analysis of Czech articles, data from the database of Research and Development and Innovation Results (RIV) was used.
Interview with RNDr. Eva Kočková, a long-time employee of T. G. Masaryk Water Research Institute in the field of hydrochemistry and evaluation of water quality
“Water” as an irreplaceable natural source of life has accompanied you throughout your professional career, which you started right after graduating in 1954 at the Masaryk University in Brno in organic chemistry…
The TGM Water Research Institute, p.r.i., took part in the organization of the 46th Water Management Fifty on the occasion of the celebration of its 100-year existence. In addition to the classic choice between bikes and buckets, this year participants could also take a ride on a scooter for the first time.
The First Czechoslovak Republic hydrobiological stations – The beginnings of scientific fish research in Moravia
Field stations represent one of the forms of fishery or fishpond research. Their origins can be found at the end of the 19th century, but this type of research program flourished during the interwar era. At that time, two of the oldest and most important hydrobiological stations in Moravia – Lednice (1922) and Velké Meziříčí (1928) – were established.
When we looked back to the history, we found out that water recreation in Prague had a long tradition. The Vltava river lidos were very popular as a leisure activity in Prague. A possible expansion of places for swimming and water recreation in Prague represents the main aim of the project – Possibility of water recreation in Prague (from history to the present days).
Dear readers, in this issue of our journal we bring you an interview with Petr Marvan, our leading diatom expert and former employee of the TGM Water Research Institute, p.r.i., , who celebrated his 90th birthday on 29 April this year.
Contribution to the history of research of wastewater treatment technologies in the Water Research Institute
In the past, research on water purification technologies was carried out according to a different key than now. In addition to achieving the highest possible cleaning effect, the aim was also to reduce costs, simplify construction processes and often bypass the ignorance of know-how in operating abroad technologies.
In 1990, WRI TGM was a budgetary organization, ie the “organizational component of the state” in its current concept. The name of the institute has already the name of its founder, T. G. Masaryk, which was missing since the fifties in the former founding charter of this institution…
This contribution is a complication of the biggest floods in the Czech Republic that have occurred in the last hundred years and provides descriptions of these individual disasters.
In 1989, Prague units organizational and dislocation structure of the Water Research Institute (WRI) was rather rugged. It consisted of the traditional components of water management research, referred to collectively as section 20 located in Podbaba, and an experimental group dealing with wastewater treatment in Papírenská Street.
Ing. Miroslav Kněžek, CSc., who worked at the TGM Water Research Institute, p.r.i., for almost four decades and who has contributed significantly to that the TGM WRI is respected authority in the field of hydrology and hydrogeology.
On Tuesday, October 24, 2019, the annual celebration of the 100th anniversary of the founding of the State Institute of Hydrology, today’s T. G. Masaryk Water Research Institute, culminated.
In the monumental hydraulic hall of the TGM Water Research Institute, p.r.i., in Prague in Podbaba, the fifth musical intervention for the regular siren rehearsal was performed as part of the celebration of the 100th anniversary of its foundation.
Update of empirical relationships for calculation of free water surface evaporation based on observation at Hlasivo station
Evaporation from free water surface is one of the essential components of water circulation in nature and significantly affects the overall water balance of the catchment. Due to the complicated direct measurement, it is often calculated from formulas that require available meteorological variables as input data.
Evaporation from free water surface is one of the important factors affecting the total water balance of a catchment. Since direct measurement of evaporation is complicated, evaporation is in practice often calculated using formulas based on common meteorological variables.
The paper analyses effects of snowmaking on stream flows in the Giant Mountains, detailed analysis of runoff conditions and differences in amount of water contained in technical and natural snow. Attention is paid to possible interaction between water abstraction and water pollution.
The article deals with the hydraulic and structural assessment of a sector gate in Děčín and Český Krumlov based on the evaluation of experimental measurements performed on a physical hydraulic model In the Water Management Laboratory of the Faculty of Civil Engineering, CTU in Prague.