In the paper, the trend analysis and the behaviour character of chemical trace component of groundwater in Shenyang area are discussed on the statistical analysis which shows that most of the chemical trace component can be checked up in the monitoring wells, but those over background and over standard values are not high, and mainly in the old urban areas.
In terms of environmental protection, we require that the density of such harmful substance as the heavy metal ion and the organic matter, etc. in the water of industry is lower than 0.5mg/L. The separation of trace components is also challenged from the purifying industry.
The separation of trace components in the dilute solution have gained great intrest in academe. A lot of valuable materials often exist with very low concentration in solution, and we require that the concentration of all harmful substance as the heavy metal ion and the organic matter should be very low, and the concentration of some matters must be in a rank of ppm in environmental protection.
The separation of trace components in rare solution is a popular task in the field of separation process. This paper discussed the application of SFE ,membrane separation and foam separation and the choice of separation method
Peaks in ~1H 1D spectrum and especially the cross peaks in ~1H-~1 2D spectrum from minor components in the white spirit sample were clearly observed, on which spectral assignments and component analysis can be accomplished.
A process analysis for residual-oil gasification system of Texaco is presented. Mathematical models for calculating the material and heat balance of the system and a method for calculating the minor components of gasifier are also proposed.