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Lead (Pb)-poor ‘cracker dust’, commonly used in kerb and gutter construction, has been installed on top of Pb-rich soil surfaces in Broken Hill over the last few decades, with the aim of reducing the risk of human exposure to Pb particulates. In this study, topsoil (0–0.1m) and subsoil (0.3–0.5m) samples were collected along rays spanning all parts of the Broken Hill urban area to investigate the...
Microbial immobilization of arsenic by stimulation of sulfate reducing bacteria in contaminated paddy soil in the vicinity of an abandoned Au-Ag mine was investigated. Soil samples were mainly contaminated with arsenic due to mining activities. Batch experiments in which glucose and sulfate were amended for bacterial stimulation indicated that indigenous sulfate reducing bacteria could reduce iron...
Serpentine soils have relatively high concentrations of potentially toxic elements (PTEs) (Co, Cr, Cu, Fe, Ni) but generally low amounts of major nutrients. They often bear a distinctive vegetation, with specific tolerance to PTEs, and a frequently-used approach to understanding serpentine ecology and related environmental hazard has been the chemical analysis of soils and plants. In this paper we...
In assessing the adverse effects of acid mine drainage (AMD), the chemistry of AMD and stream water (i.e., pH and toxic metal concentrations) has been accounted as important monitoring parameters and its characteristics are regulated in many countries. Yet for the precise evaluation of eco-toxicological effect on AMD receiving streams, a more comprehensive evaluation parameter has to be recognized...
Rice plays an essential role in Asian sustenance. Moreover, it can take up toxic elements through its roots from contaminated soils, and even its leaves and grain can absorb the elements deposited on the soil surface. Hence in 2010, forty soil and polished rice samples were collected from four representative abandoned metal mining areas in Korea and analyzed for As and heavy metals, including Cd,...
Multi-metal pollution in mines and their surrounding areas causes major environmental and health problems. An investigation on the soil quality in four mining sites revealed serious heavy metal (HM) contamination. The contents of As, Pb, Zn, Cd, Cu, and Sb showed high HM pollution. Compared with the national second soil environmental quality standard, the over-standard rates of As, Pb, Zn, Cd, Cu,...
This study was carried out to develop a process for recovering dissolved metals from acid mine drainages (AMD). AMD sludge normally consists of a heterogeneous mixture of many elements that are thrown out due to a lack of low purity. However, purified Fe, Al and Mn hydroxides would be potential resources. The AMD from Samma-Taejeong coal mine, Samcheok, Gangwon province in Korea was neutralized by...
Applicability of a powdered activated carbon impregnated alginate beads (ABPAC) was examined toward simultaneous removal of heavy metal (cadmium) and volatile organic compound (benzene) from water. Sorption of cadmium and benzene by ABPAC was investigated in both single and binary systems as a function of contact time (1h–11d), initial pH (4–7), and initial concentration of cadmium and benzene (10–600mgL...
Mine soils are often polluted and degraded. The objectives of this study were to assess the effects of soil properties and vegetation on soil solute transport in reclaimed soil at an opencast coal mine site on the Loess Plateau. Four reclaimed areas with different vegetation types were selected for the analysis of physical and chemical properties. The miscible displacement technique was used to obtain...
Coal mining operations produce a large amount of coal spoil and tailing wastes that may cause environmental problems. Coal mine wastes can be returned to the mine by in-pit disposal of tailings, thereby reducing the environmental risk caused by the failure of tailing dam constructions. Geochemical characterization of coal mine wastes is important prior to in-pit disposal of the wastes because such...
We investigated properties of soil materials derived from reclamation and revegetation on fly ash used to fill-in an area excavated during earlier mining. Changes in the soil environment that take place after this practice have to be well recognized, since knowledge of all aspects of fly ash revegetation is essential to sustainable reclamation. Fly ash was a by-product of lignite-burning in an electric...
The restoration technologies in areas degraded by extractive activities are more efficient under the use of their own spoils. Reducing deficiencies in physical properties, organic matter, and nutrients with a contribution of treated sewage sludge is proposed. This experiment was based on a controlled study using columns. The work was done with two limestone quarry spoils, both very rich in calcite...
Anthropogenic activities may lead to increased levels of heavy metals in soil environment and to reduced environmental quality. In this study concentrations of heavy metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, V, Zn) were measured by using an atomic absorption spectrometer and soil samples were collected in the vicinity of the largest coal fired power plant in Serbia. The soil pollution status was assessed...
Soil contamination may influence negatively soil health, which often limits and sometimes disqualifies soil biodiversity and decreases plant growth. However, the increased concentration and distribution of potentially toxic elements (PTEs) in soils by mismanagement of industrial activities, overuse of agrochemicals, and waste disposal are causing worldwide concern. This study focused at developing...
This special issue of Catena is dedicated to the topic of soil conservation and soil erosion by wind and water. The topic is of particular importance today with the recognition that we live in a rapidly changing world that presents many challenges associated with population pressures and migrations, and their associated demands on the precious soil resource that we depend on for our survival. These...
Investigating the erosion processes of freeze–thaw-affected soils caused by concentrated snow/glacier meltwater flow can be challenging. Experimental data can help improve our understanding and modeling of the phenomenon. Laboratory experiments were conducted to assess the effects of slope gradient and flow rate on soil erosion by concentrated meltwater flow over thawed and non-frozen soil surfaces...
Soil loss due to wind and water erosion degrades the soil on-site and results in environmental problems due to deposition in off-site areas downstream and downwind of the source field. Wind and water erosion may both occur to varying extents particularly in semi-arid environments. Soil conservation strategies require information about the processes of soil redistribution to mitigate its impact. However,...
Current theoretical and experimental studies of windblown sand movement are mostly conducted on flat sand surfaces. However, sand dunes, basic forms of desert landscapes, have slope gradients that greatly influence the transportation of sand particles. In this study, sand velocity on the windward and leeward slopes of barchans dunes was measured using a laser Phase Doppler Particle Analyzer in a wind...
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