The complexation behaviours of trivalent rare earth elements (La, Ce, Ho and Yb) by two types of humic acids were investigated under a specified set of conditio
The atmospheric nitric acid, ammonia and ammonium nitrate aerosol was determined simultaneously in a Beijing site to teste quilibrium. Rather good agreement bet
This paper generalized the structure characteristics of three different configuration photoreactors: annular-type irradiated by lamp, solar shallow-pond and sol