Coal fly ash and effluent from coal ash settling basins negatively affects metabolism and reproduction in a variety of organisms, including a number of fish species. Some species, most notably the eastern mosquitofish (Gambusia holbrooki), are known to maintain viable populations in areas contaminated by coal ash. While eastern mosquitofish are present in these systems, their degree of toleranc...

The Development Plan of Taranto port (S. Italy) predicts the dredging of approx.20 Mt sediments, ≥10% of which are polluted. By appointment of Italian Environment Ministry, a detailed experimental investigation was carried out at laboratory and pilot-scale levels on the best available techniques to reclaim the polluted sediment so to reuse it in a technic and cost effective manner. A short pre-...

The extraction of sulphur produces a hematite-rich waste, known as roasted pyrite ash, which contains significant amounts of environmentally sensitive elements in variable concentrations and modes of occurrence. Whilst the mineralogy of roasted pyrite ash associated with iron or copper mining has been studied, as this is the main source of sulphur worldwide, the mineralogy, and more importantly...

The study of undertaken for heavy metal Pb accumulation by fly ash and coal waste in Singrauli industrialised district of India, using atomic absorption spectrometry. Ashes from collected vegetables and plants leaves samples were analysed for the quality and quantity of Cr, Mn, Pb, Zn, Cu, As, Ni and Co and detectable levels of all were found. Pb distrusted the metabolic processes of living org...

Introduction Nanocarbons have attracted worldwide attention in nanoscience and nanotechnology communities during the past two decade because of their unique mechanical and electrical properties, which make them great potential in catalysis, electrochemical devices, field emission devices and composites[1-2]. However, the high cost and low yield for production of these materials remains the bott...

Studies were performed to compare the physical and chemical characteristics and the in vitro macrophage cytotoxicity of oil and coal fly ash. Sampling methodology was developed to collect size-fractionated particulate matter from the smokestack of either a coal-fired or an oil-fired power plant. Morphological studies demonstrated particle heterogeneity, although most coal fly ash particles appe...

Thermal power stations using pulverised coal as fuel, generate large quantity of ash as waste by product, which poses dual problem of environment and disposal. Flyash is a versatile material with many possible applications such as land filling and in land reclamation of low lying areas. An experimental investigation has been carried out to study the behaviour of compacted ash overlying sand dep...

The practice of cofiring biomass in full-scale coal utility plants is increasing, due to the benefits of reduced fossil fuel based CO2 emissions. Biomass also tends to have a lower sulphur content than coal and therefore emissions of SO2 can be reduced. The same is true for NOx emissions from lower fuel nitrogen content. Further, the lower flame temperatures and different combustion stoichiomet...