Hana Hudcová’s research while affiliated with T.G. Masaryk Water Research Institute and other places

The book presents a graphically and editorially modified methodology that deals with water management objects (dams, small water reservoirs, waterways, objects for the use of water energy, water supply, sewerage and sewage treatment objects), which it assesses from the point of view of historic preservation. It provides a basic orientation in the topic, an overview of typology and tools for evaluating water management objects. The publication is primarily intended for heritage conservation workers and state administration. It is a tool for orientation in the topic of water management and for their evaluation from the point of view of historic preservation. It is a tool for orientation in the topic of water management and for their evaluation from the point of view of monument care. It is also recommended as a teaching aid for high schools and universities with a technical focus in the field of water construction and water management.

Irrigation facilities were built and function mainly as part of a larger or smaller functional unit. Their importance, even from the point of view of potential monument protection, resides in the identification and documentation of not only solitary buildings but especially entire systems/functional units with a description of the links between them. An individual object or building may not be exceptional, but its integration into a larger functional unit can create a uniquely conceived solution. In the field of water management, the importance of criteria such as typological value, the value of technological flow, the authenticity of form and unction, and the value of technology and system links with an overlap with agriculture or industry is particularly evident. The article provides information on the possibilities of using traditional methods of historical and archival research and documentation as well as the use of modern tools for more extensive systems, including methods of digitisation and document processing.

In the last decade, the protection of cultural heritage in the Czech Republic, as well as other countries around the world, has also focused significantly on the description, documentation, preservation, and presentation of industrial heritage. An integral part of protection is the elaboration of the typology of objects of individual industries, their identification, assessment of the current state, and protection. Conservation activities are also aimed at popularization as a suitable tool for preserving this heritage and awareness of it. Conversions of buildings, transformations into museums, educational trails, and other measures leading to popularization, support of public awareness, but also the support of tourism are implemented. The area of water management is also a part of it. The paper briefly outlines the historic development of irrigation in the territory of the Czech Republic, methods of identification and documentation of objects and their systems, selected examples of already implemented protection and popularization. The possibilities of using modern methods of documentation, e.g. GIS tools, UAV equipment, are discussed. © 2021 Public Recreation and Landscape Protection - With Sense Hand in Hand! Conference Proceedings.

Wastewater treatment sludge presents a significant problem for small wastewater treatment plants due to both the high costs of the final handling process and the need to solve the various technological problems involved. However, several technologically simple andlow-cost solutions are currently being introduced into practice. To date, the Czech Republic has very little experience of Reed Bed technology (RBs, or STRBs) that is commonly employed in European countries such as Denmark, Spain, Austria or Poland. This study focused on the testing of two pilot RB systems of different construction installed at two small wastewater treatment plants –a constructed wetland in the Southern Moravia region for 800 PE andanactivated sludge treatment plant in the Central Bohemian region for 1900 PE. The two pilot reed beds were filled with liquid sludge containing between 2 to 13 % of total solids (TS), depending on the origin of the sludge, using different loading schemes for the studied period 2017-2018. Both of the pilot units evinced very promising results in terms of the extensive dewatering of the sludge by up to 30 –34 % of the TS in average at the end of each campaign. At the end of the study period, it was observed that the content of pathogenic microorganisms andother monitored harmful substances did not exceed Czech limits for agricultural use, thus allowing the use of the material as fertilizer.

Small water reservoirs are one of the basic elements of the agricultural landscape in the Central European space. They are one of the most valuable nature-loving elements of the cultural landscape. In the Czech Republic, they have a long historical tradition. Artificial water reservoirs were probably built in our country in the eighth and ninth centuries AD. Since the beginning of the 1990s, new SWRs, including ponds for fish farming, or the restoration of existing and abandoned ones, have been implemented, thanks to various subsidy programmes, especially the river network revitalization programme. The chapter summarizes the procedures for identification of areas of historic ponds using maps of military mapping on the territory of the Czech lands and their interpretation in connection with water revitalization and restoration projects of the small watercourses, carried out in the Czech Republic since 1992.

Due to the progressive decrease in precipitation in the Czech Republic, the need for the irrigation of agricultural crops is steadily increasing. It is proposed that the problem of a lack of water resources might be partially solved via the reuse of treated wastewater (WW) in certain agricultural sectors however there is a very little known about the possible advantages or disadvantages of such sources of water. For this purpose, a semi-operated irrigation field was established at Hostětín in the Zlín region of the Czech Republic which was subsequently planted with willow cuttings (Salix viminalis L.). The plants were irrigated by means of two different water sources – wastewater from the local municipal treatment plant and local groundwater. During the 2018 and 2019 growing seasons, we observed the significantly enhanced growth of the wastewater irrigated willows – biomass yield was of 6.6 and 31.3 t/ha respectively under wastewater irrigation conditions, while only 1.0 and 1.8 t/ha was produced under fresh water irrigation conditions. The biomass quality was assessed via calorific values and showed lower gross and net calorific values for the wastewater irrigated willow biomass, i.e. 18.5 and 17.2 MJ/kg of dry matter respectively compared to 19.2 and 17.9 MJ/kg. However, the overall high yields of the biomass more than compensated for this disadvantage. This study confirmed the hypothesis that wastewater can be used in agricultural areas in which it does not endanger either public health or the environment.