This design and technical solutions for sewage effluent are recommended based on the requirements of EN 12056-2 and experimental hydraulic pipeline measurements. Individual adjustments for pipe breakage are contained in national standards, e.g. STN 73 6760, ČSN 75 6760 and DIN 1986-100, which must comply with EN 12056-2.

The principles are set out in CSN 75 6760. Priority is given to sufficient drainage of waste water from equipment without extraction of odor closures and backflow.

The security elements and their connection vary depending on the type of heater and the amount of heated water. The connection of the safety valve pipe to the drainage system must be ensured by a so-called free spout in accordance with ČSN EN 1717.

For instantaneous heating, heated water is immediately consumed. Accumulating water heating is obtained especially when there is insufficient heat source available. For district heating, the water is heated outside the object in the heat exchanger station. For multi-stage heating, the water is heated by several heat sources.

On average, every citizen of the Czech Republic consumes about 40 liters of hot water per day. Approximately 2.2 kWh of thermal energy is consumed to heat this water.

We choose the water heater based on the availability of fuel and the need for water. What are the costs of water heating, how to select the stack size and how to read the energy label of the appliance?

The share of population exposed to flood risk tended to grow slightly. Compared to the world, however, the proportion of people at risk of floods in the Czech Republic is very small. In the future, it is possible to achieve an even greater degree of adaptation (resilience) to floods.

Historic gardens served for closed groups of people. Today, gardens and parks are mainly used by the general public, with all the negative influences that flow from it. The article also mentions requirements for technical solutions of water elements, including operational requirements.

In January 2018, the new European Standard EN 16941-1 On-site non-potable water systems – Part 1: Systems for the use of rainwater was issued. This European Standard will be issued in the Czech Republic in July 2018 in the English version.

It is expected that the new administrative centre of Lesy České republiky would be an exemplary demonstration of the use of wood, which will be used in the form of the building material or in which the importance of wood will be emphasized in another appropriate way. The paper is focused on a proposal that won the international architectural competition in 2016.

Appropriate measures make it possible to approach the water regime in cities in nature to mitigate negative impacts of urbanization. There are also many implementations in the Czech Republic that return water and greenery to cities.

The thesis is focused on smart metering system and ripple control. The first theoretical part describes function of ripple control. The second theoretical part presents smart metering technology with introduction of a new system of energy settlement. The new system of energy settlement use prices in the intraday market which are published on Electric grid operator’s website. The system can be considered as a dynamic tariff. The system of energy settlement is demonstrated on consumption of the family house. The comparison of both systems is demonstrated in the final part of the thesis.

Bromates (BrO₃⁻) are classified as hazard substances that can cause carcinogenic diseases. They belong among the elements that are not commonly found in analysis of the drinking water. Bromates appear as by-product from water disinfection by ozone in the water, that contain the higher concentration of bromine ions (BrO⁻). There are several physical and chemical processes that can be used to reduce the concentration of bromates. Adsorption is one of the most frequently used methods for removal of the hazard substances from the water. It allows the application of various type of sorbent materials for instance: active coal, zeolite, GEH, and the other materials with base of iron hydroxide.
The main aim of this work was to ensure the removal of bromates from the water source Dvorníky (Slovak Republic), with selected sorbent materials: granulate active coal, zeolite, GEH, Bayoxide E33, Read – As, Klinopur – Mn, and activated alumina. The results of the laboratory tests are present in the experimental part.

Water increases its volume when heated in a heater. The increased volume is then discharged through the safety valve into the waste. This leads to water losses. Larger proportional losses occur especially when hot water is not taken during heating.

Danger of backflow is underestimated. Water mains operators rely on a reversing valve in a water meter assembly, but this may not be reliable. Here, health risks and deterioration of drinking water quality in backwaters are known.

The authors describe the economic and technical connections related to the use of thermal solar water heating systems on the Czech market. This includes investment costs, grant titles, operating options, and an estimated lifetime that is roughly twice as high as the economic return.

This Framework of the National Environment Program is the extension of the National Environment Program document. The Framework introduces priority themes to be supported by the National Environment Program over the next three-year period.

Rainwater can be captured and used directly. After simple mechanical cleaning it is suitable for irrigation or flushing toilet, cleaning, car wash or laundry. The basic choice is the pumping of rainwater. The article describes the possibilities.

Revised CSN EN 12897 “Water Supply – Indirectly heated pressure (closed) storage water heaters” applies to indirectly heated pressure container heaters up to a volume of 2000 liters usable in internal water conduits at overpressure from 0.05 MPa to 1.0 MPa. The author draws attention to important provisions of the standard that will be reflected in practice.