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Determination of heavy metals in marine sediment | Odredjivanje teskih metala u morskom sedimentu
2009
Bulatovic, A., Institut za biologiju mora, Kotor (Montenegro) | Kljajic, Z., Institut za biologiju mora, Kotor (Montenegro)
This paper presents the concentration of Pb, Cd, Zn, Cu and Ni in the surface sediment samples, determined by EDPXRF. Also, a horizontal distribution of these metals is given for seven investigated sites in the coastal sea of Montenegro, from the entrace to the Bokakotorska Bay to the mouth of the river Bojana. A trend of increase in the concentration of metals with the distance from the coast is noticed in the studied area. The possible causes of this distribution should be sought in the direction of movement of sea currents in the Adriatic Sea as well as the fate of suspended material after entering the river Bojana.
显示更多 [+] 显示较少 [-]Heavy metals content in Vojvodina [Serbia] watercourses in the period 2002-2008 | Sadrzaj teskih metala u vodotocima Vojvodine [Srbija] u periodu of 2002-2008. godine
2009
Trickovic, J. | Dalmacija, B. | Krcmar, D. | Roncevic, S. | Agbaba, J. | Pesic, V. | Maletic, S. | Dalmacija, M. | Bozovic, Lj., Univerzitet u Novom Sadu, Novi Sad (Serbia). Prirodno-matematicki fakultet, Departman za hemiju
The results of sediment quality monitoring gathered during the period 2002-2008 were processed and shown in the current work to assess the overall sediment quality in Vojvodina watercourses regarding heavy metals content. Since Serbia does not have legislation for sediment quality, Canadian and Dutch sediment criteria were used for evaluation of sediment quality. The elevated concentrations of heavy metals in Vojvodina watercourses are a consequence of the discharge of untreated or partially treated industrial and municipal wastewaters, but also of the corosion of metal structures and constructions (Cu, Zn) as well as the influence of difussion sources, principally agriculture (Cd, Cr, Hg) and transport (Pb).
显示更多 [+] 显示较少 [-]Heavy metals determination in the Danube river sediments using sequential extraction and total digestion comparation | Komparacija sekvencijalne ekstrakcije i totalne digestije pri odredjivanju sadrzaja teskih metala u sedimentima Dunava
2008
Colic, J., Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia) | Janac, M., Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia) | Petrovic, R., Tehnolosko-metalurski fakultet, Beograd (Serbia)
The objective of the paper is establishing of eco-chemical characterization of the river system by investigating and distribution heavy metal content in the river sediments using sequential extraction and total digestion. Heavy metals toxicity and bioavailability in the Danube river sediment are defined according to their distribution between different phases. Sediments samples were taken from 9 sites and analysed for cadmium (Cd), iron (Fe), manganese (Mn), lead (Pb), copper (Cu), zinc (Zn) and chromium (Cr), and the results about cadmium and iron presented in this paper.
显示更多 [+] 显示较少 [-]The concentration of metals in species Lemna gibba L. from the reservoir Gruža [Serbia] | Koncentracija metala u vrsti Lemna gibba L. iz jezera Gruža [Srbija]
2012
Branković, S., Prirodno-matematički fakultet, Kragujevac (Serbia) | Pavlović-Muratspahić, D., Prirodno-matematički fakultet, Kragujevac (Serbia) | Topuzović, M., Prirodno-matematički fakultet, Kragujevac (Serbia) | Glišić, R., Prirodno-matematički fakultet, Kragujevac (Serbia) | Stanković, M., Prirodno-matematički fakultet, Kragujevac (Serbia) | Đekić, V., Centar za strna žita d.o.o, Kragujevac (Serbia) | Pirušić, S., JKP Beogradski vodovod i kanalizacija, Beograd (Serbia)
Investigation in this study should indicate to importance of aquatic macrophytes in accumulation of toxic metals in aquatic ecosystems and control of their pollution, as well as to establish which plants are well hiperacumulators and test species for remediation, in order to protection, regeneration and conservation of the Gruža lake as reservoir that is important for water supply and as particular natural ecosystem. Obtained results showed that species Lemna gibba L. was reliable indicator of surrounding conditions (environment), as well as good accumulator of heavy metals, so it could be used to remediate aquatic ecosystems.
显示更多 [+] 显示较少 [-]Risk assessment in the sediment/water system based on the metal content in sediment | Procena rizika u sistemu sediment/voda na osnovu sadržaja metala u sedimentu
2012
Krčmar, D., Prirodno–matematički fakultet, Novi Sad (Serbia) | Dalmacija, B., Prirodno–matematički fakultet, Novi Sad (Serbia) | Dalmacija, M., Prirodno–matematički fakultet, Novi Sad (Serbia) | Pešić, V., Prirodno–matematički fakultet, Novi Sad (Serbia)
The paper presents the results of different methods of sequential extraction of metal in sediment of the Great Backa canal in order to obtain data on the total, available and potentially available contents of heavy metals as well as risk assessment in aquatic systems. Based on the results of sequential extraction of metals was found that sediment does not have the risk to the environment in terms of Cr, Cu and Pb concentration while the contents of Ni, Zn and Cd sediment indicates a moderate risk. Results of sequantial extraction of metals indicate that the risk to the aquatic ecosystems decreases in risk assessment based on the pseudo total metal content in the sediment. Thus the results suggest that not all detected metals are bioavailable and that not only on the basis of total metal content of the actual risk may be overestimated.
显示更多 [+] 显示较少 [-]Removal of heavy metals from water using Lagenaria vulgaris as a biosorbent | Uklanjanje teskih metala iz vode primenom biosorbenta na bazi Lagenarie [i.e. Lagenaria-e] vulgaris
2008
Mitic-Stojanovic, D., JKP Vodovod , Vranje (Serbia) | Bojic, A., Univerzitet u Nisu, Nis (Serbia). Prirodno-matematicki fakultet, Odsek za hemiju
This study investigates the possibilities of using Lagenaria vulgaris biomass as a biosorbent for removal of heavy metals from wastewater and natural water. The experiments were carried out with model solutions of Pb2+, Cd2+, and Zn2+, in batch system. The effects of contact time, temperature, initial metal concentration and adsorbent doses, on the adsorption of heavy metals have been studied. Results show that biosorbent based on Lagenaria vulgaris represent efficient and low-cost means for pretreatment of heavy metals contaminated waters.
显示更多 [+] 显示较少 [-]Metal contents in sediment from canal DTD Vrbas-Bezdan [Serbia] | Sadrzaj metala u sedimentu kanala DTD Vrbas-Bezdan [Srbija]
2008
Krcmar, D. | Dalmacija, B., Prirodno-matematicki fakultet, Novi Sad (Serbia). Departman za hemiju | Prica, M., Fakultet tehnickih nauka, Novi Sad (Serbia) | Trickovic, J. | Dalmacija, M., Prirodno-matematicki fakultet, Novi Sad (Serbia). Departman za hemiju
In this work, the horizontal and vertical distribution of metals in the sediment of the DTD canal was studied, in a 6 km long polluted section between Vrbas and Bezdan. The assess sediment quality and the bioavailability of heavy metals, sediment samples were analyzed for total metal content, acid volutile sulphides (AVS) and simultaneously extracted metals (SEM). A high total metals content was determined (mainly Cu, Ni and Zn), which indicates that the sediment requires remediation. The AVS and SEM results show that in almost every profile, the molar concentration of metals is less than the molar concentration of sulphides, which suggests that in practice, the metals are not bioavailable. The high metals content of the sediment means that drudging of the canal will be necessary, during which, attention will have to be paid to avoid causing negative effects from the metals present in the sediment.
显示更多 [+] 显示较少 [-]Industrial waste water refinement by precipitation treatment using dithiocarbamate: Changing process duration and pH effect on refinement efficiency
2007
Milenkov, Lj.,JKP Vodovod, Bor (Serbia) | Gardic, V.,Institut za bakar, Bor (Serbia) | Stankovic, S.,Institut za bakar, Bor (Serbia)
Stable complexes formation caused by usage of complexing agents as additive in plating solutions, made waste water treatment aggravated and expensive. The investigation results of samples that contain some cations expected in waste waters from this type of facilities, are presented in this paper. The precipitation of disolved heavy metals by neutralization, in the presence of strong chelators, do not give requested results. The dithiocarbamates are effective in complexing heavy metal ions forming insoluble compounds, with solubility far below that of the corresponding hydroxides. Inductively Coupled Plasma Optical Emission Spectroscopy is used for wastewater samples analysis. After the reduction of Cr6+ into Cr3+ ions and homogenization, dithiocarbamate is added. Modified neutralization process with unchanged retention time and pH 9.0 +/- 0.2 results the Law permitted wastewater quality.
显示更多 [+] 显示较少 [-]The role of aquatic macrophytes in phytoremediation of heavy metals
2007
Ilic, P.,Institut zastite, ekologije i informatike, Banja Luka (Bosnia and Herzegovina) | Pajevic, S.,Prirodno-matematicki fakultet, Novi Sad (Serbia) | Maksimovic, T.,Prirodno-matematicki fakultet, Banja Luka (Bosnia and Herzegovina) | Matavulj, M.,Prirodno-matematicki fakultet, Novi Sad (Serbia) | Tepic, S.,Institut zastite, ekologije i informatike, Banja Luka (Bosnia and Herzegovina)
Aquatic macrophytes are exceptional accumulations of heavy metals and they are very important in phytoremediation of the pollutants. The aim of the survey was to show according to content of heavy metals in aquatic macrophytes DTD (Danube-Tisza-Danube) canal complex, at localities under great human influence indicate the situation of chemical contamination these localities and to define test species, actually the ones that have the greatest accumulation. Plant material was prepared according to the Standard Methods for Examination of Water and Wastewater of the American Health Association. Analysis of heavy metals in the plant tissue samples was done by standard methods using atomic absorption spectrophotometry. The best accumulator of majority of heavy metals is Ceratophyllum demersum. The results show that mentioned species can be used for removal of heavy metals from water, what means that it has the ability of phytoremediation of pollutants.
显示更多 [+] 显示较少 [-]Bioaccumulation of Mn, Cd and Pb by aquatic macrophytes in the area of Bardaca fish pond [Bosnia and Herzegovina]
2007
Maksimovic, T.,Prirodno-matematicki fakultet, Banja Luka (Bosnia and Herzegovina) | Stankovic, Z.,Prirodno-matematicki fakultet, Novi Sad (Serbia) | Ilic, P.,Institut zastite, ekologije i informatike, Banja Luka (Bosnia and Herzegovina)
The contents of heavy metals (Mn, Pb, and Cd) in water, sediments and shoots of emersed plants Phragmites communis, Typha latifolia and Typha angustifolia in the area of Bardaca fish pond were analyzed. Species Typha latifolia has shown the best ability for the bioaccumulation of heavy metals tested. Therefore, this species could be recommended as the phytoremediator of these pollutants from polluted waters. The results of this study indicate that the accumulation of tested elements in the water, and their availability to plants are still far from the critical level which may cause disturbance of balans in the Bardaca ecosystem.
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