Chromium (Cr), one of the prime hazardous trace elements in coals, may engender adverse effects on eco-environment and threaten human health during utilization of coal. Based on the samples obtained in our laboratory and published literature, the abundance and modes of occurrence of Cr in Chinese...
The coals are "clean," suitable for use in coal-fired power plants, and their utilization has little impact on the environment. The potential fate of the elements and radionuclides is interpreted only in general terms, mainly by referring to previous studies on the behavior of trace elements ...
When weighing the cost of burning coal, one should consider not only the impact of burning coal but also the impact of coal mining on the environment, local communities and the miners themselves. coal plant n (power station: burns coal) SC 燃煤发电厂 coal scuttle (metal bucket) SC 煤炭铲...
During coal combustion Sb is partly released to the atmosphere and partly partitioned into the solid residues. Sb in the environment brings about definite harm to human health. Environmental impact of a trace element in coal is related to its concentration and modes of occurrence. ...
Recommendations The coals in Serbia and Montenegro show no identifiable unfavourable impact on the surrounding environment, due to low natural radioactive concentration of U and Th, but further investigations concerning human health should be performed. Perspectives Preliminary research revealed that in ...
The outside objects do not have any impact on the circulating water pump. 6.The calorimeter uses serial communication technology with low failure rate and loose requirements for use environment. Heat capacity about 10500J/K Outer water tank capacity about 30L Inner wate...
vitrinite reflectance shows weak correlations with hydrogen index (r = 0.209), genetic potential (r = 0.303), A-factor (r = − 0.318), and bitumen yield (r = 0.305), thus implying that the slight variation in the rank of the studied coals did not impact their pet...
The purpose of this study is to explore how the geochemical and petrographic components of coal may impact its physical properties, as well as how these components correlate with a history of reportable dynamic failure in coal mines. Dynamic failure events, also termed bumps, bounces, or bursts...
Storm water had an impact on the Conclusions Coal seams with similar vitrinite reflectance values and sulfur contents but different sulfur forms were chosen and analyzed. The findings suggest that the origin and formation of SPACs are related to sulfur forms. The HOSCs have the most SPAC ...
performance, carry out proper maintenance of their plants and ensure appropriate sourcing of environment-friendly coals. legco.gov.hk 我們認為建議的排放上限雖然非常嚴格,但當兩電有充足的天然氣供應以便盡量 充分使用現有的燃氣機組發電,同時優化編排盡量使用有較好環保表現的機組,適當 保養有關設備,以...