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In this study, tri-butyl-phosphate (TBP)-kerosene is used as the extraction solvent to remove phenols from coal gasification wastewater, and the complex mechanism of the extraction is investigated. An effect experiment is conducted to determine the complex structures, the enthalpy change of reaction, and the effect of extraction solvent concentration and temperature on the distribution coefficient...
This study compounds three types of coagulants (AlCl₃, FeCl₃, Fe₂(SO₄)₃) with promising effects on TP removal of domestic sewage. The optimum conditions for TP removal using¹ compounded coagulants are determined by Plackett-Burman (P-B) design, steepest ascent, and Box-Behnken design. The adequacy of the quadratic regression model is evaluated by analysis of variance (ANOVA). Results show that initial...
The power industry is the leading source of man-made carbon emissions in China, and it is supposed to assume most of the responsibility for reducing carbon emissions. To study the decoupling status between carbon emissions and economic growth in China’s power industry, a new OECD decoupling analysis with LMDI model is employed in this paper. The results are as follows: 1. Growth and volatility are...
Rapid economic growth in the Beijing-Tianjin-Hebei region has been accompanied by a dramatic increase in carbon emissions. Therefore, a precise study of forecasting carbon emissions is important as regards curbing them. To identify the influence factors of carbon emissions and effectively predict carbon emissions under the three different GDP growth rate scenarios in the Beijing-Tianjin-Hebei thermal...
Arsenic (As) is a ubiquitous carcinogen in the environment. Its bio-toxicity is significantly correlated with its chemical forms. In this study, As accumulation and speciation of PM₂.₅ was investigated in Jinan. The high PM₂.₅ levels fluctuated between 69.67 μg·m⁻³ and 211.25 μg·m⁻³ in winter, and ranged from 63.46 μg·m⁻³ to 125.50 μg·m⁻³ in summer. The total As concentration of PM₂.₅ in winter and...
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