Based on the colorimetry mechanism,the meaning oftrichroism is studied,as well as the synthetic and selecting principles of trichroism ofreactive and disperse dyes in particular.
Results showed that internal electrolysis pre-treatment of yeast-producing wastewater were effective on the removal of COD and colority.What is more important is that the biod...
The method for determine sewage's chroma is method of dilution multiple.It's easy to bring in error when using eyes to determine the diluted sample is whether achromatism or not.
Farther on, the bottom was tinted with fine shades of ultramarine; then, off in the distance, it turned blue and faded in the midst of a hazy darkness.