Ecoterra, No. 3, p. 12, 2004
Ştefana BÂLICI, Gheorghe BENGA
Universitatea de Medicină şi Farmacie “Iuliu Haţieganu”, Cluj-Napoca
Abstract: The majority of the price rates for the thermal energy during the ‘transition’ years have urged people to look for alternative solutions of heating the blocks of flats in Romania, which has negatively led to the installation of some heating thermal devices fed by natural gas, which were often used stations, such as the apartment thermal micro-stations, the convectors etc. Significant changes of the environment in the proximity of the blocks of flats have occurred in this way, because of the uncontrolled evacuation of the toxic gases resulted from the burning of the methane gas, owing to the use of the apartment thermal micro-stations.
Key words: heating thermal devices, toxic gases, environment, impact
Ecoterra, No. 3, pp. 13-14, 2004
Universitatea Babeş-Bolyai din Cluj-Napoca, Facultatea de Ştiinţa Mediului
Abstract: The air that we breathe can be contaminated by various polluting agents coming from factories, car vehicles, power plants and many other sources. These polluting agents have been, for a long time now, an alarming phenomenon because of the harmful effects that they sometimes have on the environment and on people’s health. Their impact depends on many factors, such as the amount of air pollution to which the people are exposed, the exposure duration and the aggressiveness of the polluting agents. The effects of the air polluting agents may be minor and irreversible (such as the eye irritation), aggravating (such as the chronicization of the asthma) or even lethal (such as the cancer). The air polluting agents that are susceptible of favouring the appearance of cancer and of some other serious health problems are called ‘toxic air polluting agents’, ‘accidental air polluting agents’ or, in a more simple way, ‘air toxic substances’.
Key words: polluting agents, monitoring, human health, impact
Ecoterra, No. 3, p. 19, 2004
Mirela Violeta POPA
Muzeul de Paleontologie-Stratigrafie al Universităţii Babeş-Bolyai, Cluj-Napoca
Abstract: The Paleontology-Stratigraphy Museum of Babeş-Bolyai University in Cluj-Napoca, with a history as long as nearly 150 years and with a fund of more than 50,000 samples, may be looked upon as one of the most important specific establishments in Romania. Generations of passionate researchers, teachers and students, continuously enriched the collections of the museum with numerous samples, some of them being real patrimony items. The scientific value of the collections is pointed out by the interest shown by the scientific community in Romania and abroad, the Paleontology-Stratigraphy Museum representing an important objective in the schedule of the specialists that pay visits to us. We may equally speak about the didactic importance of the collections. The museum is permanently opened to the students, as the collections are used in their training process. Initially arranged to make young students acquainted with the fascinating history of life on Earth, nowadays we are talking more and more about the necessity of a rearrangement and about the introduction of the museum in the category of those opened to the great public. The thematic collections include exceptionally valuable samples, which enrich both the national and the world scientific patrimony. The most valuables collections include The Paleontology Taxonomic Collection, The Collection of Types, The Collection of the Transylvanian Basin being comprised in the regional ones.
Key words: museum, samples, patrimony, collections
Ecoterra, No. 3, pp. 22-23, 2004
Benoni LIXANDRU, Smaranda MÂŞU, Gabriel TRANDAFIR
Facultatea de Zootehnie şi Biotehnologii Timişoara
Muzeul Banatului, Timişoara
Abstract: In a more than three year lapse of time, a research team from the Timişoara Faculty of Zootechny and Biotechnologies, from the Natural Sciences department of the Banat Museum, and from the Bucharest ECOIND National Institute of Research-Development for Industrial Ecology - the Timişoara branch, team made by biologists, ecologists and chemists, performed a complex monitoring of the processes of eutrophisation in the Ier Valley, mainly of the Satchinez Ornithological Reservation. Seeing the inter-connections that currently exist between the natural ecosystems of the wet and half-wet type and the agricultural ones that are to be found in the entire area, a thorough research of the entire Ier Valley, so not only of the actual reservation, was called for, with an aim to obtain the information needed for designing the activities of neutralizing the negative influences and for preventing the cultural eutrophisation. The present column discusses about the nutrients that cause the eutrophisation of water in the area under research.
Key words: Ier Valley, trophic structure, ornithofauna, ecosystem
Ecoterra, No. 3, pp. 23-24, 2004
Institutul Naţional de Cercetare-Dezvoltare pentru Protecţia Mediului–ICIM Bucureşti
Abstract: During August-September 2001, an expedition called Joint Danube Survey – 2001, was made along the Danube river between Regensburg (Germany) and Sulina (Romania). In period 6–21 of September the expedition was along Romanian stretch of the Danube river. The main goals of the expedition were to evaluate the present status of abiotic and biotic compounds of hydrogeomorphological units compartiments and to identify future actions in order to improve the quality of the Danube river and its representative tributaries. In all samples were identified more than 100 macroinvertebrates taxa belonging to following groups: Porifera, Nematoda, Gasteropoda, Bivalvia, Polychaeta, Oligochaeta, Hirudinea, Acari, Isopoda, Amphipoda, Decapoda, Mysidacea, Ostracoda, Ephemeroptera, Odonata, Heteroptera, Coleoptera, Diptera, Trichoptera, Bryozoa. The macroinvertebrates fauna was dominated by organisms tolerant to organic loads. The values of saprobic index varied between 2,01–2,61.
Key words: Danube river, macroinvertebrates taxa, saprobic index
Ecoterra, No. 3, p. 25, 2004
Paul PENCIOIU, Sanda COTESCU, Ionel POPA, Carmen POPESCU
S.C. ICPE S.A. Bucureşti
Universitatea de Arhitectură şi Urbanism “Ion Mincu”, Bucureşti
Primăria Municipiului Constanţa
Abstract: When we look at the principles of the waste material management, we notice that the main target is to prevent the generation of waste materials and to reduce their negative impact. The materials resulted in waste ones must be reused, recycled, recovered or used as a source of energy. Finally, the elimination of the waste materials has to involve minimal costs. The economical operators, especially the manufacturers of material goods, have to be involved in the objective of closing the lifetime cycle of the substances, of the components and of the products from the moment of their manufacture, along their use and until they become waste materials. The waste materials integrated management (WMIM) represents the use of the countless variants, which complete one another for efficiently and safely managing solid waste materials. A WMIM system includes plans and programmes for reducing the amount of waste materials at the source of their generation, for reusing, recycling, claiming and managing the hazardous domestic waste materials and for providing the storing capacity. The work synthetically presents the relationship between the participants organised at the level of the municipalities, with responsibilities and activities in the field of waste material generation, purchasing, processing and disposal, with an impact at the municipality level, as well as the ways of optimizing the actual cooperation framework.
Key words: waste materials, impact, WMIM system
Ecoterra, No. 3, pp. 28-29, 2004
Grigore VLAD, Mircea CRĂCIUN2
S.C. ICPE Bistriţa S.A.
Abstract: The tanks that can be emptied and that do not constitute cleaning installations play a role in stocking waste waters with a view of their emptying and evacuation into a cleaning station of the mechanical and biological type. These tanks that can be emptied are usually endowed with gutters and they illegally evacuate the unpurged waters in some natural receivers, thus contributing to their worsening. The appropriate purification of any waste water usually involves the arrangement of some additional steps of cleaning the waters, with high investment and operating costs that exceed the financial possibilities of the economical agents. In case of the small economical facilities, of the motels, of the restaurants, of the car fuel feeding stations, of the dwellings (the recently built ones), tanks that can be emptied have been foreseen and executed for collecting domestic type waters. The role of the storing tanks is generally to accumulate waste waters for a variable period of time ranged between at least 7 or 10 days and one month at the most, until they are emptied and the waters are conveyed to a cleaning station, so that the polluting agents that are present in these used waters may be retained. The volumes of the tanks are large, thus enabling a stationary (accumulation) time of at least one week. This work presents the installation for the mechanical-biological purification obtained by the transformation of the storing tanks. The biological purification is made in a unique tank, where the biochemical oxidation of the organic substances that are present in the waste water and the secondary decantation take place successively. Both the primary purification of the used waters and the biological cleaning can be made in these storing tanks.
Key words: waste water, storing tank, biological purification