خيارات البحث
النتائج 1 - 10 من 24
Water quality parameters in correlation to the ageing of the Gruza [water] reservoir [Serbia, Serbia&Montenegro]
2003
Timotijevic, V. ("Vodovod i kanalizacija" JKP, Kragujevac (Serbia and Montenegro)) | Djuran, D. | Milovanovic, D. | Comic, Lj. | Curcic, S.
Water reservoir "Gruza" is used forthe water supply of the town of Kragujevac and it's surroundings. The paper shows a comparative overview of physical, chemical and microbiological parameters during the period of 1987-1989, and 1997-1998. Variations of physical, chemical and microbiological parameters are given in the paper.
اظهر المزيد [+] اقل [-]Sediment quality in the iron gate reservoir [Serbia, Serbia&Montenegro]. [Preliminary communication from scientific-research project]
2003
Damjanovic, M. | Babic-Mladenovic, M. (Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia and Montenegro))
Regular monitoring of water quality of the Danube river in the backwater zone includes analysis of the sediment. It is well known that sediment is a sink place for the non degradable compounds and it reveales the long term water quality status in the reservoir. This paper presents the general results on the Iron Gate reservoir siltation. as well as some data regarding pollution level, based on investigations carried in the period of 2001-2002. The investigations included organic load of the sediment, heavy metals and organic pollutants content. The degree of pollution is evaluated on the basis of various criteria, also compared to results of previous case studies.
اظهر المزيد [+] اقل [-]Survey of hydrobiological research on [water] reservoirs in Serbia [Serbia&Montenegro]
2003
Comic, Lj. (Prirodno-matematicki fakultet, Kragujevac (Serbia and Montenegro)) | Curcic, S. | Ostojic, A. | Milosevic, S.
Comparative analysis of results obtained in hydrobiological research conducted to date indicates that relatively few water reservoirs in Serbia have been subjected to complex hydrobiological investigations. Apart from the fact that hydrobiological investigations are now performed on only a small number of water reservoirs in Serbia, they are moreover inadequately coordinated, which is especially evident in differences of procedural approaches employed. With adoption of the principles of modern limnology and wider use of new criteria for water classification (m WQI for instance), the current state of hydrobiological research constitutes a basic for the development of comprehensive program of planned continuous studies of water reservoirs in Serbia resulting in their rational and successful management.
اظهر المزيد [+] اقل [-]Some difficulties in protection and exploitation of the "Grliste" water reservoir, source for supplying Zajecar and surrounding by drinking water [Serbia, Serbia&Montenegro]
2003
Milenkovic, P. (Zavod za zastitu zdravlja "Timok", Zajecar (Serbia and Montenegro)) | Nakic, S. | Bajic, A. | Radosavljevic, M.
The lack of drinking water in Zajecar was the main reason for building of water barrier on the Grliste river and making the water reservoir. A factory for water processing was also built, but the problems were not disappeared. The conclusion is that the main solution for this ecosystem was in establishing of an monitoring system. That is the reason why we talk out the results of the monitoring and the troubles in this water source as well as in the phases of water processing.
اظهر المزيد [+] اقل [-][Seasonal dynamic of phytoplankton and zooplankton and saprobiological analysis of water quality of Bocal lake and tribut areas [the Republic of Srpska (Bosnia&Herzegovina)]
2003
Bobic, M. | Zaric, I. (Institut za vode d.o.o., Bijeljina, Republika Srpska (Bosnia and Herzegovina))
In scope of complex physical-chemical and biological examination of water quality of the Bocac lake, the river Vrbas and tributaries Ugar and Crna Rijeka, examinations of phytoplankton and zooplankton were performed during 2002 (March-November). In qualitative structure of phytoplankton 7 division were registered, with 93 taxa from 49 genera in total. In warmer period extreme domination have fire algae (Pyrrophyta). In zooplankton structure (Rotatoria, Cladocera, Copepoda) 78 taxa were registered from 36 genera, with distinct domination of Rotatoria group. According to saprobiological analysis species of olligo- and beta-mesosaprobic character are prevailing.
اظهر المزيد [+] اقل [-]Influence of the ash basin "Drazeljevo" on the reservoir Vrba water quality [The Republic of Srpska (Bosnia&Herzegovina)]
2003
Vasiljevic, M. (Institut za zastitu zdravlja Srbije "Dr Milan Jovanovic Batut", Beograd (Serbia and Montenegro)) | Maljevic, E. | Karadzic, V. | Vasiljevic, V. | Nikic, Z.
According to the plans, the town of Gacko tends to be water supplied from the water reservoir Vrba located at the river Vrba. About 150 to 200 m away is located ash basin. All ash basin area is oriented to the water reservoir and leaking water going directly to the water reservoir. The leaking water has high pH value, alkalinity, high content of sodium, potassium and sulphates. There are some heavy metals, but their concentrations are not significant. The influence of those contaminated water on the lake water quality is only little evident because of the high dilution rate.
اظهر المزيد [+] اقل [-]Water quality of the Danube river with regard to the iron gate reservoir [Djerdap], [Serbia, Serbia&Montenegro]
2003
Damjanovic, M. | Popovic, L. (Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia and Montenegro))
This paper presents the most important results on water quality investigation of the Danube river in the Iron Gate reservoir. The investigations are conducted by the Institute Jaroslav Cerni by means of regular monitoring renewed after a long pause in 2001. The determined phenomena are considered in regard to water quality of the Danube river in the upstream zone.
اظهر المزيد [+] اقل [-]The influence of transporting Pester field waters on eutrophication and the quality of Sjenica lake water [Serbia, Serbia&Montenegro]
2003
Obuskovic, Lj. (Institut za bioloska istrazivanja "Sinisa Stankovic", Beograd (Serbia and Montenegro))
In order to increased the amount of water in Sjenica water reservoir (because of higher production of electric energy by hydroelectrical power plant), stagnant waters of Pester field were irrigated to Vapa river and Sjenica lake. Former swamp areas and theirs life communities, represented specific biological filter in Pester high, a kind of natural lagoons, where big amounts of polluted water with nutrients were spent a processed (especially salts of P and N) were characteristic for exact area because of intensive cattle production. After the irrigation on Pester field, raw, polluted water with the large amount of nutrients by Vapa river get to the Sjenica water reservoir where they represented main cause of eutrophication and degradation of water quality in this aquatorium. Heterogenic and numerous algal association in canal of the Pester field is nearly leftover of previous specific algological flora which testifies the presence of species Chaetophora incrassata Hazen (new habitat in Serbia), the first class water indicator.
اظهر المزيد [+] اقل [-]Phosphatase activity of water of the Lake Gruza [Serbia, Serbia&Montenegro]
2003
Nedovic, M. (Gradski vodovod, Kragujevac (Serbia and Montenegro)) | Raicevic, V. | Kikovic, D. | Lalevic, B.
The basic purpose of Gruza accumulation is to supply the town of Kragujevac and its vinicity with drinking water. The accumulation occupies large area, comparing with its relatively shallow water and low water mass, which is essential for water eutrophication. The aim of this research is to determine water quality, through index of phosphatase activity at five locations in one year period. According to the results obtained for index of phosphatase activity, water of Gruza lake belongs to 3rd A category. The maximum obtained value (19.60 micromol/s/cubic dm) was determined in the shallow part, at mouth of the river Gruza in July, 2000, and the minimum one (0.39 micromol/s/cubic dm) in the deepest part of accumulation, at location Brana in March, 2001.
اظهر المزيد [+] اقل [-]Microbiologial aspect of water quality of reservoir Bocac and its tributaries [Bosnia&Herzegovina]
2003
Bobic, M. (Institut za vode d.o.o., Bijeljina, Republika Srpska (Bosnia and Herzegovina))
In the scope of complex physical-chemical and biological water examination of Bocac water reservoir, the river Vrbas and trbutaries Ugar and Crna Rijeka, examination of standard microbiological indexes of water quality (aerobic organotrophs at 22-26 deg C and 37 deg C, total colliforms and colliforms of fecal origin) was performed during 2002 (March-November). Number of examined microbiological parameters was mainly in the scope of the 2nd water category (beta-mesosaprobic water) with worse water quality in upstream part of the reservoir. Ugar tributary had the best water quality, while Crna Rijeka had the worst status with obvious anthropogenic influence.
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