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In this study, biochar (BC), triple superphosphate (TSP), and TSP+BC amendments were utilized for remediation of Cd, Pb, and Cu co-contaminated agricultural soils. The toxicity characteristic leaching procedure (TCLP), the European Community Bureau of Reference (BCR), X-ray diffraction, and scanning electron microscopy-energy dispersive spectrometer techniques were employed to evaluate the effectiveness...
The application of nitrogen fertilizers can improve the soil environment and influence the nutrition and quality of plants; there are also significant impacts of soil types on soil microbial communities. Research on the coupling effects between the rates of nitrogen fertilizer and the soil types on soil microbial metabolic activities under field conditions are currently lacking. In this study, we...
Although the treatment for recycling chrome in tanning effluents is relatively mature, the post-tanning processes have no corresponding effective technology due to the lack of knowledge about the effluents. In this work we investigated the composition and properties of rewetting and neutralizing effluents in posttanning processes. Goat skins were tanned with sulfate chrome liquor of alkalinity 33%...
This in-depth paper studies the issue of energy-related CO₂ emissions of China using sample data from 1980 to 2015. Due to the lack of official data, CO₂ emissions are first calculated by the recommended IPCC method. It shows that CO₂ emissions in China present an “S” type in shape. Then the Tapio decoupling index is applied to investigate the relationship between CO₂ emissions and economic growth...
Groundwater is considered a major source of drinking water and its quality a basis for good population health. In order to identify groundwater hydro-chemical characteristics and pollution conditions in Songnen Plain, groundwater hydro-chemical characteristics and nitrate-nitrogen (NO3-N) spatial distribution characteristics and the health risks were analyzed. Results showed that groundwater hydro-chemical...
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