Study on the useful life of low concentration mercury standard solution by atomic fluorescence spectrometry;

Study on removal of low concentration of SO_2 by cellulose-based activated carbon fiber;

Application research of a new type of composite ball carrier in the recycling of wastewater of low concentration;

The start-up of expanded granular sludge bed reactor with low strength COD;

The Zinc Oxide devise to deal with low concentration Sulfur Dioxide off-gas of Zinc leaching residue in volatilization kiln is introduced in detail in principle, process, important technique economy parameter and existing problem.

Study on the rheology and the influence factor of low-concentration carrageenan;

Preparation of carbamide peroxide from low-concentration hydrogen peroxide;

The effects of the rheological properties of low-concentration arabic gum with different concentration,shearing rate,temperature,pH and stirring time on the viscosity of gum solution was studied.