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Bacteriological water analysis of river Cerava
2003
Lokoska, L. (Hidrobioloski zavod, Ohrid (The Former Yugoslav Republic of Macedonia))
During 2001, water from river Cerava and from the littoral where the river flow into lake Ohrid, were examined. Bacteriological analysis included ecological and sanitary aspekt of water state. Heterotrophic, proteolytic, amylolytic and phosphomineralizing bacteria, most probable number of total coliforms (MPN) and presence of Escherichia coli and Clostridium perfringens were determined. The results of investigations shows organic and faecal pollution and permanent negative anthropogenic effects.
显示更多 [+] 显示较少 [-]Comparing analysis of chlorophyll 'a' and phaeophytin 'a' concentrations in Palic lake [Serbia, Serbia&Montenegro]
2003
Camprag, N. | Lehoczki, I. (Zavod za zastitu zdravlja, Subotica (Serbia and Montenegro))
This work show and compare results of chlorophyll 'a' and phaeophytin 'a' concentrations during three years systematic examination. The samples were collected from the fourth sector of Palic lake, ones a month, during 2000, 2001, and 2002 using method by Szilagyi. Comparing values, a great seasonic changes of chlorophyll 'a' and phaeophytin 'a' concentrations is noticed.
显示更多 [+] 显示较少 [-]Passive in situ bioremediation. Changes in hydrocarbons content in groundwater in the oil-contaminated area [near Novi Sad, Serbia&Montenegro]
2003
Ivancev-Tumbas, I. (Prirodno-matematicki fakultet, Novi Sad (Serbia and Montenegro). Institut za hemiju) | Dalmacija, B. | Becelic, M. | Karlovic, E. | Tamas, Z. | Pesic, V. | Agbaba, J. | Jovanovic, D.
The work is concerned with the study of groundwater quality in respect of hydrocarbons content, carried out on several sites on the territory of the Oil Refinery Novi Sad (Serbia, Serbia&Montenegro). In the course of four year that elapsed since the time spillage of crude and oil derivatives and deposition of burning products on the Refinery soil (April-June 1999) the processes of passive in situ bioremediation have been taking place on the contaminated area. By comparing the results for three contamination zones in a circle of 270 m from the site at which the spillage occurred, a certain increase in content of mineral oil was observed in deeper water-bearing layers at a distance of 200 and 270 m from the spillage site. A content of BTEX components the "movement" of the pollution was observed from the close zone 1 via the farther zone 2 to the farthest zone 3, which indicates that the intensity of bioremediation and all physico-chemical processes in general, taking place on the pollution site, is not sufficient to prevent pollution spreading. The assumption that the zone in question in probably a limiting zone is based on the results of the fourth sampling campaign, in which BTEX components were not detected on any of the locations of the zones 2 and 3.
显示更多 [+] 显示较少 [-]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.
显示更多 [+] 显示较少 [-]Sustainable usage of forest ecosystems in Serbia [Serbia&Montenegro] from aspects of water supply and erosion control
2003
Ristic, R. | Djekovic, V. | Letic, Lj. (Sumarski fakultet Univerziteta u Beogradu, Beograd (Serbia and Montenegro))
Forest ecosystems are important component of environment and row basis for wood processing industry. Traditional attitude about primate of productive functions in relation to useful functions, is under question, due to next reasons: exhaustion of sources of wood mass; affirmation of protective and regulative functions in domains of water-supply and erosion control. This attitide os represented in basic plan documents in Serbia, as well as in European Union. Protection, care of existing, and restoration of degraded forests, are the possibilities for development of high-profitable activities such as: recreation and sport tourism, hunting tourism and healthy food production.
显示更多 [+] 显示较少 [-]Fauna of monogenean trematods - parasites of some cyprinid fishes from the lake Dojran (Macedonia) [The Former Yugoslav Republic of Macedonia]
2003
Stojanovski, S. (Hidrobioloski zavod, Ohrid (The Former Yugoslav Republic of Macedonia)) | Hristovski, N. | Cakic, P. | Hristovski, M. | Nastova-Aleksova, R.
During the parasitological investigations on the gills of 3 cyprinid species from Lake Dojran (the Former Yugoslav Republic of Macedonia), are found 4 monogenean species: in Rutilus rutilus dojranensis are found Dactylogyrus similis and Dactylogyrus suecicus, in Scardinius erythrophthalmus dojranensis is found Dactylogyrus difformis, and in Alburnus alburnus macedonicus is found Ligophorus sp. Prevalence in Rutilus alburnus dojranensis is 40.46%, in Scardinius erythrophthalmus dojranensis is 55.56%, and in Alburnus alburnus macedonicus is the lowest and amounts 2.02%. All monogenean species represents the first record for parasitic fauna of fish species in the Former Yugoslav Republic of Macedonia. Finding of Ligophorus sp. in the fishes of the family Cyprinidae is new to science generally.
显示更多 [+] 显示较少 [-]Biological denitrification in drinking water treatment
2003
Ljubisavljevic, D. | Dakovic, S. (Univerzitet u Beogradu, Beograd (Serbia and Montenegro). Gradjevinski fakultet)
According to existing national Standard for drinking water quality NO3 sup(-) ion is limited to 50 mg/l. Removal of NO3 sup(-) concentration greater than this limit is necessary. One of the possible methods is biological denitrification with CH3OH. Principals of this method are described in this paper with recommendation for construction of pilot plan on the specific groundwater source.
显示更多 [+] 显示较少 [-]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.
显示更多 [+] 显示较少 [-]Use of powdered activated carbon for better removal of natural organic matter from groundwater by coagulation and flocculation
2003
Dalmacija, B. (Prirodno-matematicki fakultet, Novi Sad (Serbia and Montenegro). Departman za hemiju) | Klasnja, M. | Agbaba, J. | Ivancev-Tumbas, I. | Becelic, M.
The process of removal of natural organic matter from groundwater by adsorption on powdered activated carbon, coagulation and flocculation was investigated. It was found that the combination of these processes yielded a decrease of KMnO4 values, which allowed the reduction of the coagulant concentration, needed to achieve the necessary quality of drinking water, up to 50%. Also, it was established that the sequence of adding powdered activated carbon and coagulant is one of the essential factors determining the efficiency of NOM removal from water, and which is primarily conditioned by the nature of the organic matter present in the investigated water.
显示更多 [+] 显示较少 [-]Quality parameters of canal sediments
2003
Savic, R. (Poljoprivredni fakultet, Novi Sad (Serbia and Montenegro). Departman za uredjenje voda) | Belic, A. | Pantelic, S. | Bozinovic, M.
Importance of sediments quantity and quality problems addressing to land reclamation canal network in Vojvodina (Serbia, Serbia&Montenegro) are pointed out in this paper. Necessity for sediments monitoring and criteria definition for environmental discharge are drown. Special attention is paid to agricultural land as recipient of these sediments.
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