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The buildings and services sector accounts for about 40% of total EU energy consumption, in particular residential heating accounting for 78% of this consumption. Increasing the energy performances of buildings, together with the effort to mitigate greenhouse gas emissions and, implicitly, climate change are the main directions of intervention of worldwide energy strategies. In the context of a process of global energy transition, Romania - as a member of the European Union, also is engaged in a policy of changing...

Considering the widespread pollution and the need for taking drastic measures to protect the environment, it is necessary to constantly optimize the treatment stages within the wastewater treatment plants in order to meet the quality standards when discharging wastewater into surface water. The paper presents a study on a wastewater treatment plant in Romania that serves a municipality with a population of approximately 400,000 inhabitants, having a sewerage network working in a unitary system. The study followed ...

Sealing solutions play a crucial role in any space application. In this paper we present the production and characterization of elastomeric composites for rubber seals used to prevent unwanted loss of gas or liquid. We selected the following types of elastomers: ethylene-propylene-diene terpolymers (EPDM), butyl rubber (IIR) and bromobutyl rubber (Br-IIR) that have a good behaviour in the low temperature conditions of the cosmic space. Two bipolymeric EPDM/IIR and EPDM/Br-IIR compounds were made, containing other ...

Considering the increasing generalized pollution and tightening of environmental protection regulations, it is necessary to constantly optimize the treatment technologies, in order to meet the quality standards when discharging wastewater into surface water. The paper presents a study on a wastewater treatment plant in Romania that serves a municipality with a population of approximately 400,000 inhabitants, having a sewerage network working in a unitary system. The main indicators of the waste water quality (flow...

In the process of growing organic products farms face many problems including the need to treat phytopathogens without fungicides or to increase yields without mineral fertilizers. In organic farming, agents of biological control as well as nonconventional organic fertilizers can be used to achieve these goals. One of the main problems with biocontrol agents is that their survival after introduction into soil may be very different since it depends on many biotic and abiotic factors in soil ecosystems. The problems...

Unconventional energy sources have gained and will continue to gain a growing share of energy systems around the world, both because of the research effort and the political will involved in their development, and because of the price increase of energy obtained through traditional methods. In order to take advantage of the opportunities offered by the international energy transition process, Romania must undertake new directions for development in the energy sector. Conventional energy sources based on oil, coal ...

Among the key factors and the physical-geographical conditions of the environment in which plants grow and are harvested, the soil presents a major component, which has the role, on the one hand, of a complex indicator of the evolution of characteristics that determine the growth of plants and, on the other hand, of a depository of the influence of all other conditions and factors, faithfully and continuously recording all the phenomena occurred in a certain place and time. This is illustrated by the level of must...