Temat: Mercury - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mercury Content in Upper Layers of Soils from the Areas with Various Impacts of Anthropogenic Pressure
Autorzy:: Małuszyński, Marcin J.
Dąbrowski, Piotr
Małuszyńska, Ilona
Powiązania:: https://bibliotekanauki.pl/articles/123729.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: mercury
anthropopressure
soil
Opis:: The aim of the conducted research was to determine the mercury content in the upper layers of soil taken from the areas with various impact of anthropogenic pressure. The article presents the content of mercury in the top layers of soils from selected areas of two districts of Warsaw, ie Ursynów and Mokotów. These areas are heavily influenced by the human activity. For comparison, a soil sample was also taken from the area of the Solska Forest, which is an example of an area with a negligible impact of anthropogenic pressure. The mercury content in the analyzed soil samples taken from the area of Warsaw ranged from 0.0334 mg·kg-1 to 0.4004 mg·kg-1 in Ursynów, while the soils from the Mokotów area contained from 0.2320 mg·kg-1 to 1.3098 mg·kg-1. For comparison, the sample from the Solska Forest area contained 0.2544 mg Hg·kg-1. In order to avoid uncontrolled re-emission and, as a consequence, possible accumulation of this element in the environment, it is necessary to continue monitoring the level of mercury pollution, among others, in soil.
Źródło:: Journal of Ecological Engineering; 2019, 20, 11; 13-17
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Identification and Correlation Test of Mercury Levels in Community Urine at Traditional Gold Processing Locations
Autorzy:: Lensoni
Adlim, M.
Kamil, Hajjul
Karma, Taufiq
Suhendrayatna
Powiązania:: https://bibliotekanauki.pl/articles/24201654.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: urine
society
gold
mercury
mine
Opis:: Gold processing activities in Paya Seumantok Village, Krueng Sabee District, Aceh Jaya Regency, are known to utilize traditional mercury, posing a health threat to the workers and the local community. This study aims to identify local people’s urinary mercury levels near the gold processing plant in Paya Seumantok Village and to see the relationship between mercury levels and disease symptoms exhibited by the local people. To this end, ninety-one participants were recruited from a total member of a population of 928 people, determined using Slovin’s formula. The urine sample was collected using a purposive sampling technique following the procedure set by the regulation of the Minister of Health no. 43/2013. AAS Instrument was used to analyze the urinary mercury level. Sixteen out of 91 urine samples exhibited no mercury, while the rest, 75 samples, were found to contain mercury. The average urinary mercury level among local people near the site was 8.392 μg/L (SD: 6.721 g/L), while the minimum and maximum urinary mercury levels in this study were 0.19 μg/L and. 28.31 μg/L, respectively. Thirty-six samples were found to have mercury levels exceeding the acceptable threshold (7 μg/L), while thirty-nine samples had urinary mercury levels below the threshold. This study concluded that there is no relationship between urinary mercury levels and symptoms of acute and chronic diseases experienced local community and workers at the gold processing site in Paya Seumantok Village, Krueng Sabee District, Aceh Jaya Regency (p > 0.05).
Źródło:: Journal of Ecological Engineering; 2023, 24, 3; 357--365
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Emission of mercury from polish large-scale utility boilers
Autorzy:: Kobyłecki, R.
Wichliński, M.
Wielgosz, G.
Bis, Z.
Powiązania:: https://bibliotekanauki.pl/articles/125170.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: mercury
coal combustion
power generation
Opis:: The article presents the results of investigations focused on the determination of mercury content in gas and solid samples. The emission of Hg was the result of coal combustion. The investigations were carried out in the selected power generation facilities operated with pulverized coal and circulating fluidized bed boilers. Analysis was carried out for the flue gases, as well as fuel and sorbent samples and the by-products of the combustion process (fly ash, slag, bottom ash, and the products of wet desulfurization technology). The determination of mercury content in solid samples was carried out using Lumex RA-915+ spectrometer with RP-91C attachment. The measurements of the mercury concentration in the flue gases were performed according to the cold vapor technique. The analysis of the results indicated that the main source of mercury is coal, but significant concentration was also determined for the biomass co-combusted in one of the facilities. Considerable amounts were also determined in fly ash and wet FGD (flue gas desulfurization) samples.
Źródło:: Journal of Ecological Engineering; 2016, 17, 5; 120-127
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Stabilization/Solidification of Tailing on Traditional Gold Mining in Kulon Progo Using Fly Ash
Autorzy:: Rachman, R. M.
Bahri, A. S.
Trihadiningrum, Y.
Powiązania:: https://bibliotekanauki.pl/articles/123406.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: mercury
fly ash
stabilization/solidification
tailings
Opis:: Traditional gold mining activity is one of the sources of mercury contamination. Total mercury concentration in tailing ponds in Kulon Progo ranged from 164.49 mg/kg to 383.21 mg/kg, which exceeded the quality standard values set by the government of Indonesia No. 101 of 2014, which is 75 mg/kg. One method that can be applied is stabilization/solidification (S/S). This study aims to determine the optimum composition of the tailing mixture with fly ash in S/S process. The variations of fly ash composition with tailing are 100: 0, 90: 10, 80: 20, 70: 30, 60: 40, 50: 50, 40: 60, 30: 70, 20: 80 and 10: 90. The results of the study found that the optimum composition of fly ash: tailings was 10: 90, with compression test of 74 ton/m² and TCLP test was 0.0069 mg/L. The obtained compression test results were in accordance with US EPA Standard quality of 35 ton/m². TCLP test results meet the standard of Indonesian Government Regulation no. 101 of 2014, amounting to 0.05 mg/L.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 178-184
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Adsorption of Mercury and Zinc in Agricultural Soils by Sphagneticola trilobata
Autorzy:: Aveiga, Ana
Pinargote, Cruz
Peñarrieta, Fabián
Teca, Jorge
Alcántara, Francisco
Powiązania:: https://bibliotekanauki.pl/articles/2068476.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: phytoremediation
Sphagneticola trilobata
mercury
zinc
soil
wetland
Opis:: Given the imminent deterioration of environmental quality, the accumulation of heavy metals in agricultural soil is one of the main concerns worldwide. Therefore, this research aimed to evaluate the adsorption potential of mercury and zinc by Sphagneticola trilobata. After 60 days, the distribution of heavy metals in the roots and the leaves of the plants was determined. As a result, the plant adsorbed mercury between 43.49 and 59.22%, and zinc between 32.68 and 64.37%. According to the bioconcentration and translocation factors of Sphagneticola trilobata obtained in the present work, the phytostabilizing capacity of mercury and zinc is like Eichhornia crassipes and Sorghum bicolor.
Źródło:: Journal of Ecological Engineering; 2022, 23, 3; 230--235
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Speciation of Mercury Contaminant in Public Gold Mine Tailing and its Stabilization Using Sulfur and Sulfide
Autorzy:: Trihadiningrum, Yulinah
Latif, Rezki Amalia
Rachman, Ranno Marlany
Powiązania:: https://bibliotekanauki.pl/articles/123133.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: mercury
gold mine
speciation
sulfide
sulfur
tailing
Opis:: The mercury-containing tailing waste from public gold mines in Indonesia is generally deposited on soil without treatment. This research aimed at determining the amount and composition of mercury species in the tailing, and testing the effect of sulfur and sulfide on mercury stabilization. Samples were collected from a tailing pile at different depths in a public gold mine in Kulon Progo, Indonesia. The samples were characterized according to the mercury concentrations and Toxicity Characteristic Leaching Procedure (TCLP) test. Mercury speciation was carried out using nitrogen gas flow into tailing samples, which were placed in three test tubes. The released mercuric species was entrapped in KCl and KmnO₄ solutions. The mercury stabilization was carried out using sulfur and sodium sulfide. TCLP test was performed to the stabilization products. The mercury concentrations were measured using a mercury analyzer. The results showed that the mercury in the tailings were dominated by elemental Hg^o, the concentrations of which in the tailing piles of 30, 60, and 90 cm depths were 74.7%, 71.6%, and 76.5% respectively. Those of ionic Hg²⁺ form were 25.3%, 28.4%, and 23.5%, respectively. Additions of sulfur powder and sodium sulfide solution produced stable black-colored mercury sulfide. When compared to sulfide, sulfur was more recommended for stabilizing mercury in the tailing waste.
Źródło:: Journal of Ecological Engineering; 2019, 20, 4; 29-34
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Adsorbent Characterization from Cocoa Shell Pyrolysis (Theobroma cacao L) and its Application in Mercury Ion Reduction
Autorzy:: Nursiah, Cut
Desvita, Hera
Elviani, Elviani
Farida, Nurlia
Muslim, Abrar
Rosnelly, Cut Meurah
Mariana, Mariana
Suhendrayatna, Suhendrayatna
Powiązania:: https://bibliotekanauki.pl/articles/24202895.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: characterisation
pyrolysis
adsorbent
cocoa shell
mercury ion
Opis:: In this paper, we describe the characterization and application of adsorbent derived from the pyrolysis of cocoa shells, which is a natural source of adsorbent materials. The adsorbent that was used in this experiment is an environmentally friendly adsorbent that was prepared by the pyrolysis of cocoa shells. For 1.5 hours, the pyrolysis process was carried out at temperatures ranging from 300 to 380 °C. The adsorbent was characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and analysis with an X-ray diffraction (XRD) analyzer. Water-ash content and iodine absorption capacity were also determined in accordance with SNI 06-3730-1995. At a contact time of 90 minutes, the adsorption capacity of mercury ions was found to be 0.106 mg/gram. In this study, the adsorption of mercury ions with the adsorbent followed pseudo-second-order models with an R2 value of 0.9929.
Źródło:: Journal of Ecological Engineering; 2023, 24, 6; 366--375
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Mercury and aluminium in arable soils in the area of influence of brown coal mine and power plant based on the example of the Bogatynia region (Southwestern Poland)
Autorzy:: Kucharczak-Moryl, E
Moryl, A
Dąbrowska, J.
Żmuda, P.
Powiązania:: https://bibliotekanauki.pl/articles/125121.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil
mercury
aluminium
contaminated soils
industrial contamination
Opis:: This study presents research on the content of mercury and aluminium in arable soils within the range of influence of the Coal Mine and Power Plant Turów (Bogatynia region). The results were compared for reference with the region of Zgorzelec, which is situated outside the range of emission and with the results of tests conducted by other authors. The tests did not show a statistically significant increase in the mercury level in arable land from the range of influence of the Coal Mine and Power Plant Turów, neither in comparison to soils from Zgorzelec region. It is noticeable that the maximum level of mercury in the analysed area was nearly twice as high as in the values obtained in soils from industrial area in Opole and 25 times lower than the maximum mercury level found in the soils of Jelenia Góra District. On the other hand, tests of aluminium content showed a significant, nearly 3 times higher level of this metal in the range of direct influence of the Coal Mine and Power Plant Turów in comparison with the Zgorzelec region. The noted values were higher than in soils from industrial area in Opole.
Źródło:: Journal of Ecological Engineering; 2014, 15, 2; 60-66
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The Potential of Mercury-Resistant Bacteria Isolated from Small-Scale Gold Mine Tailings for Accumulation of Mercury
Autorzy:: Chasanah, U.
Nuraini, Y.
Handayanto, E.
Powiązania:: https://bibliotekanauki.pl/articles/124273.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: mercury-resistant bacteria
small-scale gold mine tailing
Opis:: In certain small-gold mining activities in West Lombok, Indonesia, the tailings containing mercury are discharged to agricultural lands, reducing their productivity. One of the efforts to restore the land is by bioremediation of mercury, using mercury-resistant microbes. This study was aimed to isolate the mercury-resistant bacteria from small-scale gold mine tailings containing mercury, and to test their capability in accumulating mercury. Bacterial isolation and identification were conducted from nutrient broth supplemented with 5 ppm HgCl₂. The isolated bacteria were tested for mercury accumulation in the nutrient broth containing 10, 20 and 30 ppm Hg for 24 hours, and in small-scale gold mine tailing containing 41.37 ppm Hg for 2 weeks. The results showed that there were four pure isolates of mercury-resistant bacteria which were identified as Brevundimonas vesicularis, Nitrococcus mobilis, Fusobacterium aquatile and Fusobacterium necrogenes. The highest Hg accumulation from nutrient broth liquid media containing 10, 20 and 30 ppm Hg was observed for Brevundimonas vesicularis. The mercury accumulation efficiency of the four bacteria applied to small-scale gold mine tailing containing mercury was in the order of Fusobacterium aquatile (76.1%) > Brevundimonas vesicularis (75.6%) > Fusobacterium necrogenes (74.4%) > Nitrococcus mobilis (74.2%). On the basis of the Hg accumulation efficiency of more than 75%, Fusobacterium aquatile and Brevundimonas vesicularis are prospective for bioremediation of mercury-contaminated soils.
Źródło:: Journal of Ecological Engineering; 2018, 19, 2; 236-245
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Distribution of Mercury in Soil, Water, and Vegetable Fern in a Former Gold Mining Area – Evidence from Nagan Raya Regency, Aceh Province, Indonesia
Autorzy:: Nisah, Khairun
Muslem, Muslem
Ashari, Tengku Muhammad
Afkar, Majral
Iqhrammullah, Muhammad
Powiązania:: https://bibliotekanauki.pl/articles/2173338.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Aceh
artisanal gold mining
mercury
fern
Pityrogramma calometanos
Opis:: The mercury contamination associated with the former intense illegal gold mining activities is suspected in the watershed of Krueng Cot Satu, Nagan Raya Regency, Aceh Province, Indonesia. The aim of this study was to evaluate the mercury contamination residue in the water, soil, and vegetable fern (Pityrogramma calometanos (L)) The samples were collected from locations in the already closed artisanal gold mining sites. The sampling locations were purposively determined by considering their closeness to the previous gold mining activities sites. The content of mercury was analyzed using flow injection for atomic spectroscopy – atomic absorption spectroscopy. The method used was validated by linearity, Limit of Detection (LoD), Limit of Quantification (LoQ), Relative Standard Deviation (RSD), and recovery. The validation test showed that this method is well linear, sensitive, accurate, and precise with a correlation coefficient, LoD, LoQ, RSD and recovery of 0.9999, 0.0477 μg/L, 0.1447 μg/L, 2.96% and 95–105%, respectively. Herein, it was found that the concentrations of mercury contents in the water samples were below the detectable range. However, a high range of mercury concentration of 0.236 – 0.328 μg/g was found in soil, with the highest concentration obtained in the sample collected from the riverbank. The fern sample collected near the riverbank contained mercury in all its parts and concentrated in the root (0.408 μg/g in the leaves, 0.276 μg/g – stalks, and 9.994 μg/g – roots). Meanwhile, the absence of mercury contamination was obtained in the leaves and stalks of the fern samples collected far from the riverbank. The roots, however, were detected with mercury contamination with the highest concentration reaching 27.660 μg/g. Despite its disappearance in the water, mercury contamination residue from the former artisanal gold mining activities still could be traced in the soil and heavy metal accumulating plant – P. calometanos (L).
Źródło:: Journal of Ecological Engineering; 2022, 23, 8; 30--39
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Consequences of Mercury Used by Artisanal and Small-Scale Gold Mining Processes a Case of River Nile State Sudan
Autorzy:: Ahmed, Ali M.A.
Purwanto, Purwanto
Sunoko, Henna Rya
Powiązania:: https://bibliotekanauki.pl/articles/124413.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: artisanal gold mining
small-scale gold mining
workers occupationally exposed
WOE
residents in surrounding communities
RSC
distribution of mercury concentration
surface soil
surface water
meteorological factors
topographical factors
Opis:: On the discovery of gold reserves in 14 states in Sudan, traditional gold mining suddenly started to flourish and hundreds of thousands of laymen became engaged in gold extraction. The new source of revenue generation added much to the empty treasury and the loss in petroleum revenue due to cessation of the south in 2011 could thus be compensated. Since gold extraction by artisanal and small-scale gold mining does not require much finance or advanced technology, it suited unskilled workers and many young people found their way into the new business. Although gold extraction generates high revenues, the use of mercury in gold extraction poses much threat to the environment and general health of miners and the surrounding areas. The research tries to investigate the effects of traditional gold mining in Alebedia area, Berber Locality in the River Nile State. The investigation includes A/ the effects of extraction methods on the environment and general health. B/ the level of education and its distribution within the miners and how it affected the awareness of the miners about the dangers of mining activities. C/ the period of stay that miners spend in the mining area its contribution on the awareness about the dangers and diseases inflicted on the miners, D/ the effects of traditional gold mining activities on natural environmental impacts and E/ the effects of the meteorological and topographical factors, the distribution and concentration of mercury in the area and their effects on the environment and general health. The research adopted the techniques of using random sampling and quantitative qualitative in addition to the analytical techniques. The research finally concluded that traditional gold mining has positive effects on the economic side and negative effects on the environment and general health.
Źródło:: Journal of Ecological Engineering; 2019, 20, 2; 106-115
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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