ASSESSMENT OF STRONTIUM, RUBIDIUM AND SCANDIUM STATUS IN SOILS AFFECTED BY SOLID WASTE DEPOSITS

2021 ◽  
Author(s):  
Luminita Pirvulescu ◽  
Despina-Maria Bordean ◽  
Loredana Copacean ◽  
Narcis Gheorghe Baghina
Keyword(s):  
Solid Waste ◽  
Soil Analysis ◽  
Reference Sample ◽  
Control Sample ◽  
Pollution Index ◽  
Random Pattern ◽  
Contamination Level ◽  
Accumulation Index ◽  
Waste Deposit ◽  
Waste Deposits

The aim of the study was to assess the level of contamination of soil with strontium, rubidium and scandium in the solid waste deposits. The study was performed on soil samples collected from Moldova Noua, southwest of Romania, an area with historical anthropogenic history. The soil analysis was performed using X-ray fluorescence (XRF). The samples were collected from five collection points using a random pattern from around the illegal waste deposit and all analyses were performed in triplicate. To assess the influence of wastes on the soils concentration levels of strontium (Sr), rubidium (Rb) and scandium (Sc), were calculated contamination factors (CF), and pollution index (PIL) by reporting the concentration of the investigated elements of the upper earth crust concentrations and geo-accumulation index (Igeo) calculated by reporting the elements concentration values to a control sample, used as reference. The reference sample was collected from an area close to the waste deposit but located in a protected green area. The results show that from the investigated elements, scandium is the element of concern, the soil presenting a moderate contamination level with this element.

Distribution and Contamination Status of Heavy Metals in the Surface Sediments along Western Coast of Bali Strait, Banyuwangi

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Defri Yona ◽  
Syarifah Hikmah Julinda Sari ◽  
Anedathama Kretarta ◽  
Citra Ravena Putri Effendy ◽  
Misba Nur Aini ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Contamination Factor ◽  
Pollution Index ◽  
Western Coast ◽  
Sampling Locations ◽  
Accumulation Index ◽  
Geo Accumulation Index ◽  
Geo Accumulation

This study attempted to analyze the distribution and contamination status of heavy metals (Cu, Fe and Zn) along western coast of Bali Strait in Banyuwangi, East Java. Bali Strait is one of the many straits in Indonesia with high fisheries activities that could potentially contributed to high heavy metal pollution. There were five sampling areas from the north to south: Pantai Watu Dodol, Pantai Kalipuro, Ketapang Port, Pantai Boom and Muncar as the fish landing area. Heavy metal pollution in these locations comes from many different activities such as tourism, fish capture and fish industry and also domestic activities. Contamination factor (CF), geo-accumulation index (Igeo) and enrichment factor (EF) of each heavy metal were calculated to obtain contamination status of the research area. The concentrations of Fe were observed the highest (1.5-129.9 mg/kg) followed by Zn (13.2-23.5 mg/kg) and Cu (2.2-7.8 mg/kg). The distribution of Cu, Fe and Zn showed variability among the sampling locations in which high concentrations of Cu and Zn were higher in Ketapang Port, whereas high concentration of Fe was high in almost all sampling locations. According to the pollution index, contamination factors of Cu, Fe and Zn were low (CF < 1 and Igeo < 1). However, high index of EF (> 50) showed high influence of the anthropogenic activities to the contribution of the metals to the environment. This could also because of the high background value used in the calculation of the index due to the difficulties in finding background value from the sampling areas.Keywords: heavy metals, pollution index, contamination factor, geo-accumulation index, Bali Strait

scholarly journals A Reference Sample: ISM of the Most Isolated Galaxies

2004 ◽  
Vol 217 ◽  
pp. 220-221
Author(s):  
L. Verdes-Montenegro ◽  
J. Sulentic ◽  
D. Espada ◽  
S. Leon ◽  
U. Lisenfeld ◽  
...  
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Galaxy Evolution ◽  
Reference Sample ◽  
Control Sample ◽  
Evolution Of Galaxies ◽  
Isolated Galaxies ◽  
Internal Evolution

We are constructing the first complete unbiased control sample of the most isolated galaxies of the northern sky to serve as a template in the study of star formation and galaxy evolution in denser environments. Our goal is to compare and quantify the properties of different phases of the interstellar medium in this sample, as well as the level of star formation, both relevant parameters in the internal evolution of galaxies and strongly conditioned by the environment. To achieve this goal we are building a multiwavelength database for this sample to compare and quantify the properties of different phases of the ISM.

scholarly journals CONCENTRATION OF HEAVY METALS IN THE SOIL AND PLANTS AROUND WASTE DUMPSITES IN ENUGU METROPOLIS, NIGERIA

2019 ◽  
Vol 3 (1) ◽  
pp. 13
Author(s):  
M. N. Okeke ◽  
Paul Chukwuka Eze ◽  
C. N. Eze
Keyword(s):  
Heavy Metals ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Control Sample ◽  
Control Site ◽  
Soil Samples ◽  
Control Measures ◽  
Plant Sample ◽  
Solid Waste Disposal ◽  
Dump Site

<strong>Aims:</strong> The purpose of this project is to find the concentration of heavy metals (Cu, Zn, Pb, As, Cr, Ni, Cd, Fe and Mn) in the top soil and the plant around the waste dumpsite from Enugu municipal solid waste disposal sites. <strong>Methodology and results: </strong>This was done through collection of soil samples from four designated public municipal solid waste dump sites (Ngwo Umueze, Presidential, New-market and Emene) in Enugu metropolis. The soil samples were collected at 10 metres intervals away from the centre location point of each dump site at constant depth (0 - 15 cm were mixed together and sample picked from it). The samples collection design are as follows: centre (0m) of the dump sites, 10 metres, 20 metres, 30 metres and the control sample which measured 65 metres away from the centre of dumpsites at the same depth. Plant samples were taken just at the centre (0m) and control measures which is at 65 meters distance away from each dump sites. The Goat grasses harvested were taken to the lab to check and analyse its heavy metals intake from the soil. These samples were analysed using atomic absorption spectrophotometer (AA320N) model. On the average, high concentrations of Zn, Fe, Mn, Cu, and Pb were found in the soil samples collected at the centre of the dump sites as 141.70, 121.5, 75.53, 70.33 and 64.53mg/kg respectively. The lower concentrations were obtained in the soil samples taken at the control site which 65 metres distance away from the centre of the four dump sites as 12.00, 81.55, 8.70, 9.56 and 6.51mg/kg for Zn, Fe, Mn, Cu, and Pb respectively. In the plant sample, concentration of Fe (98.00 mg/kg) was found to be the highest in the root at New market dumpsites, while Nil concentration of as (Nil mg/kg) was the least value at Emene from the control distance. <strong>Conclusion, significance and impact study:</strong> SPSS statistical package was used to find out the significant differences between the treatments mean (heavy metals). The result shows that the heavy metals analyses were within the acceptable or permissible limit by WHO/FAO.

Spectral time-domain induced polarisation and magnetic surveying – an efficient tool for characterisation of solid waste deposits in developing countries

2016 ◽  
Vol 15 (1) ◽  
pp. 75-84 ◽  
Author(s):  
David Dotse Wemegah ◽  
Gianluca Fiandaca ◽  
Esben Auken ◽  
Aboagye Menyeh ◽  
Sylvester Kojo Danuor
Keyword(s):  
Developing Countries ◽  
Solid Waste ◽  
Time Domain ◽  
Efficient Tool ◽  
Induced Polarisation ◽  
Waste Deposits

HEAVY METALS PROFILE AND VARIATIONS OF SOIL PROPERTIES IN A VICINITY OF CEMENT FACTORY IN OBAJANA IN KOGI STATE OF NIGERIA

2018 ◽  
Vol 6 (3) ◽  
pp. 09-17
Author(s):  
Odoh R ◽  
Archibong C. S. ◽  
Anidobu C.O
Keyword(s):  
Pearson Correlation ◽  
Analytical Techniques ◽  
Enrichment Factors ◽  
Contamination Level ◽  
Pollution Indices ◽  
Correlation Matrices ◽  
Cement Factory ◽  
Accumulation Index ◽  
Elemental Contents ◽  
Parameter Values

Purpose of study: Soils from the vicinity of a cement factory in Obajana in Kogi state of Nigeria were analyzed for their physicochemical and elemental contents in order to assess the contamination level of the soils. Methodology: Samples were collected at twenty-two identified transects of the soils near the cement factory using standard analytical procedures during Dry and Rainy seasons. The elemental contents of the soils were determined using the Atomic Absorption Spectroscopy (AAS) technique while the physicochemical parameters were determined using standard analytical techniques. Main Findings: Results indicated that the physicochemical parameter values varied across the study areas. Ten elements (As, Ca, Co, Cr, Cu, Fe, Mg, Ni, Pb and Zn) were analyzed and their concentrations values established. In addition, calculation of Enrichment Factors (EFs), Geo - accumulation Index (Igeo), Pollution Indices (PI) and Pearson correlation matrices were performed and the results indicated that across the transects some elements were in the highly pollution class and strongly correlated.  Implications: The cement facility together with the attendant vehicular traffic emissions were implicated as responsible for metal pollution in the area as higher concentration of metals were found in the sites closer to the cement factory. Originality/Novelty: Researchers did this study in their lab and this give can help government to set policies to safeguard health of community.

Study on Harmless Technology of Waste Oil-Based Drilling Fluid

2012 ◽  
Vol 524-527 ◽  
pp. 1581-1586
Author(s):  
Ping Quan Wang ◽  
Zhi Wei Qian ◽  
Yang Bai ◽  
Zai Jun Li ◽  
Shuang Meng
Keyword(s):  
Solid Waste ◽  
Ph Value ◽  
Drilling Fluid ◽  
Pollution Index ◽  
Drilling Fluids ◽  
Waste Oil ◽  
Treatment Technology ◽  
Base Oil ◽  
Leaching Toxicity ◽  
Negative Effect

Oil-based drilling fluids are essential for challenging drilling operations. However oil-based drilling fluid after using for the well site and the surrounding environment also poses a serious negative effect. Therefore, for studying on harmless technology of waste oil-based drilling fluid in this paper. Base on the tradition treatment technology for waste oil-based drilling fluid, by the preferred for treatment chemicals, improved the experimental methods and conditions, achieved some research results. Added 8.5g/L xylene/ispropanol complex demulsifier under the 50°C, pH value of 4 conditions to breaking the waste oil-based drilling fluid, the remove base oil rate is 84%, the moisture content is less than 1%, reached the "Twelfth Five-Year" major projects of national requirements' indicators; added 11ml/100g breaker SW-B, 10g/100g lime and 30g/100g cement to system for curing the waste drilling fluid, the solidified strength of the cured than 0.5MPa; Determined to leaching toxicity of solid waste, the pollution index of leaching toxicity of solid waste meeting National Integrated wastewater discharge standard (GB8978-1996).

scholarly journals Effects of Municipal Solid Waste (MSW) Compost Mulch on Growth, Yield, and Soil Analysis of Papaya (Carica papaya L.)

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 843G-843
Author(s):  
Monica Ozores-Hampton ◽  
Herbert H Bryan
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Plant Height ◽  
Soil Analysis ◽  
Growth Yield ◽  
Marketable Yield ◽  
Trunk Diameter ◽  
Msw Compost ◽  
Marketable Fruit ◽  
Marketable Size

Municipal solid waste compost was applied with a side delivery applicator on top of the bed as a mulch in May 1993, 6 months after transplanting at Homestead, Fla. Papaya (`Know You No 1') was grown with and without compost mulch. Compost was distributed on the surface of the bed ≈90 cm wide and 5 cm thick. There were no mulch effects on trunk diameter nor plant height. Plant height was affected by papaya sex 4 and 6 months after transplanting. Hermaphroditic plants were taller than female plants. There were no mulch effects on marketable yield per plant, marketable size, or number of cull fruit. Sex, however, influenced papaya size and total cull number. Hermaphroditic plants produced larger marketable fruit and more cull fruits than female plants. Lower plant mortality rates were found after 1.5 years in the mulched plants compared to unmulched plants. Soil and tissue analysis showed no differences in N, P, K, Mg, S, Mn, Fe, Cu, and B, except for Zn. Zinc contents in soil and tissue were higher in the mulched areas than unmulched areas.

Antiestrogenicity and estrogenicity in leachates from solid waste deposits

2011 ◽  
Vol 26 (3) ◽  
pp. 233-239 ◽  
Author(s):  
Anders Svenson ◽  
Sofia Sjöholm ◽  
Ann-Sofie Allard ◽  
Lennart Kaj
Keyword(s):  
Solid Waste ◽  
Waste Deposits
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