Rice Husk for the Removal of Heavy Metals from Polluted Soils at Agbogbloshie E-Waste Dump Site in Accra Ghana

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Vincent Nduka Ojeh
Keyword(s):  
Heavy Metals ◽  
Rice Husk ◽  
Waste Dump ◽  
Polluted Soils ◽  
Dump Site ◽  
Removal Of Heavy Metals

scholarly journals Uptake and translocation of heavy metals by medicinal plants growing around a waste dump site in Pretoria, South Africa

2012 ◽  
Vol 78 ◽  
pp. 116-121 ◽  
Author(s):  
J.O. Olowoyo ◽  
O.O. Okedeyi ◽  
N.M. Mkolo ◽  
G.N. Lion ◽  
S.T.R. Mdakane
Keyword(s):  
Heavy Metals ◽  
South Africa ◽  
Medicinal Plants ◽  
Waste Dump ◽  
Dump Site

scholarly journals Assessment of the effect of solid waste dump site on surrounding soil and river water quality in Teppi town, Southwest Ethiopia

2019 ◽  
Author(s):  
Besufekad Asres Mekonnen ◽  
Alemayehu Haddis ◽  
Wuhib Zeine
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Solid Waste ◽  
River Water ◽  
Water Samples ◽  
Waste Dump ◽  
Dump Site ◽  
Guideline Values ◽  
Leachate Water ◽  
Soil And Water

Abstract Background An increase in the urban population and the rising demand for food and other essentials perpetuate a rise in the amount of waste being generated daily by each household. In low-income countries, this waste is eventually thrown into open dump sites. It can cause severe impacts on human health and the surrounding environment. This study was aimed at assessing the effect of a solid waste dump site of Teppi town on surrounding soil and river water quality. Methods A total of three surface water, one leachate water samples, and four soil samples were collected and were analyzed. Six heavy metals for surface water and leachate samples and four heavy metals for soil samples were measured by flame atomic absorption spectroscopy. Additionally, physical and chemical parameters were analyzed using standard methods. The soil and water data were analyzed statistically using Origin pro version 8.0 computer software packages. Analysis of variance (ANOVA) was used to assess whether the mean values of heavy metals and physicochemical parameters in soil and water samples varied significantly between distances and location from the dump site, possibilities less than 0.05 (p< 0.05) was considered statistically significant. Results pH of soil was slightly basic (pH 8±0.1 up to 8.7±0.21. Similarly, EC was lower in 60 meters (1800±0.5μs/cm) and higher in the other sample sites (3490±0.66-4920±1.04μs/cm). The concentration of heavy metals such as cadmium (0.53±0.01-2.26±0.02 mg/kg), zinc (623.93±0.29-859.41±0.02mg/kg), lead (3.26±0.25-57.560.26mg/kg), and copper (204.06±0.06 337.11±0.01mg/kg) in the sample soils has been found to be higher than Ethiopian EPA and USEPA guideline values. Lead, cadmium, manganese, nickel, copper, and zinc in the leachate water and nickel and manganese in nearby river water, total dissolved solid, BOD5, chemical oxygen demand, and turbidity for both leachate and stream water samples were found to be higher than the Ethiopian EPA and WHO standard guideline values. Conclusions The finding suggested that solid waste open dump site adversely affects soil and water quality in the study area and probable source of human health risks via the food chain. The soil in the area requires Phytoremediation technologies. In addition, sanitary landfill is recommended.

scholarly journals Assessment of the Effect of Solid Waste Dump Site on Surrounding Soil and River Water Quality in Tepi Town, Southwest Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Besufekad Mekonnen ◽  
Alemayehu Haddis ◽  
Wuhib Zeine
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Surface Water ◽  
Solid Waste ◽  
River Water ◽  
Soil Samples ◽  
Waste Dump ◽  
Dump Site ◽  
Southwest Ethiopia ◽  
Surrounding Soil

An increase in urban population and the rising demand for food and other essentials perpetuate a rise in the amount of waste being generated daily by each household. In Ethiopia, this waste is eventually thrown into open dump sites. It can cause severe impact on soil and surface water quality. As a result, it becomes the probable source of human health risk through food chain. Therefore, this study was aimed at assessing the effect of a solid waste dump site on surrounding soil and river water quality in Tepi town, Southwest Ethiopia. Three surface water, one leachate, and four soil samples were collected and analyzed. Six heavy metals for surface water and leachate samples and four heavy metals for soil samples were measured by flame atomic absorption spectroscopy. In addition, physiochemical parameters were analyzed using standard methods. The data were analyzed statistically using Origin pro version 8.0 computer software packages. The pH of soil was slightly basic ranging from 8 ± 0.1 to 8.7 ± 0.21. Electrical conductivity was lower at 60 meters (1800 ± 0.5 μs/cm) and higher in the other sample sites (3490 ± 0.66–4920 ± 1.04 μs/cm). The concentration of heavy metals in soil samples revealed cadmium (0.53 ± 0.01–2.26 ± 0.02 mg/kg), zinc (623.93 ± 0.29–859.41 ± 0.02 mg/kg), lead (3.26 ± 0.25–57.560.26 mg/kg), and copper (204.06 ± 0.06–337.11 ± 0.01 mg/kg). Lead, cadmium, manganese, nickel, copper, and zinc were found in the leachate water; nickel and manganese were found in the nearby river water; BOD5 and COD for both leachate and stream water samples were found to be higher than standard guideline values. The finding suggested that solid waste open dump site adversely affects soil and water quality in the study area and becomes a probable source of risk for human health via the food chain.

Biotransformation and removal of heavy metals: a review of phytoremediation and microbial remediation assessment on contaminated soil

2018 ◽  
Vol 26 (2) ◽  
pp. 156-168 ◽  
Author(s):  
C.U. Emenike ◽  
B. Jayanthi ◽  
P. Agamuthu ◽  
S.H. Fauziah
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Residual Effects ◽  
Polluted Soils ◽  
Natural Processes ◽  
Physical Chemical ◽  
Microbial Remediation ◽  
Removal Of Heavy Metals ◽  
Living Organisms ◽  
Chemical And Biological Systems

Environmental deterioration is caused by a variety of pollutants; however, heavy metals are often a major issue. Development and globalization has now also resulted in such pollution occurring in developing societies, including Africa and Asia. This review explores the geographical outlook of soil pollution with heavy metals. Various approaches used to remedy metal-polluted soils include physical, chemical, and biological systems, but many of these methods are not economically viable, and they do not ensure restoration without residual effects. This review evaluates the diverse use of plants and microbes in biotransformation and removal of heavy metals from contaminated soil. Mechanisms on how natural processes utilizing plants (phytoremediation) and microorganisms (bioremediation) remove or reduce heavy metals from soil at various levels are presented. This review concludes that remediation technologies are necessary for the recovery of metal-contaminated environments and the prevention of continuous environmentally toxic impacts on living organisms.

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