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Waste recycling and the circular economy are among the most important issues in the European Union strategies. Because Romania has yet to meet many requirements of the European Commission?s policies, there have been opened several infringement proceedings against our country for pollution, wood management, and waste management. In May 2018, the European Commission sent a letter urging Romania to take major actions, such as: to close, seal, and ecologically restore 48 illegal landfills, and to comply with the judgm...

The paper presents a study of hydraulic modeling of the drinking water and sewage distribution network in Beclean City, Bistrita Nasaud County, from Romania. This study includes a calibrated simulation of the flow through networks (systems), which allows the elaboration of a future strategy of developing the networks (systems) of water and sewage. The need to develop hydraulic models as accurately as possible results from the fact that, by creating and calibrating the hydraulic model of a system, a variety of syst...

The paper has been prepared in accordance with the stipulations of the regulations in force issued by the Ministry of Waters, Forests and Environmental Protection of Romania. The objectives of this research were: the study of the physical changes resulting from the implementation of the water supply network, the analysis of potential sources of pollution of the main environmental factors, and the highlighting the impact on biodiversity of National Park ?Cheile Bicazului - Ha?ma??. These were achieved by: study of ...

The paper presents a synthesis of our researches on the main physic - chemical and biological parameters of the Snagov Lake, from Ilfov County, Romania, made since 2013 until 2019. We have developed complex investigations on the most important water quality parameters of the lake, in the purpose of analyze the evolution of the water eutrophication phenomenon in time, in different sampling points, also to establish the optimal methods of control and combat of the studied pollution process. Because the eutrophicatio...

The paper treats the problem of water eutrophication for hilly lakes. Water quality monitoring evaluates the physical, chemical, biological and bacteriological parameters of the water in relation with ecological conditions of the environment and of human health. Our researches followed the evolution of the ecological potential and the chemical state of the water between 2014 and 2018. It was defined the concept of eutrophication for hilly lakes water, it have been established the causes of this process, and it was...

The adverse effects of nutrient enrichment of surface waters, ?aquatic eutrophication?, have been identified as a major environmental issue at national and international levels. A range of statutory and international commitments, including EC Directives, the OSPAR Convention and the UK Biodiversity Action Plan, requires action to be taken to address the threats to the quality, ecology and uses of our waters. However, while these initiatives are helpful in controlling eutrophication, each addresses certain parts of...