ABSTRACT
Analysis of hemorrhagic fever with renal syndrome cases in Zibo City, China, during 2006-2014 showed that it occurred year-round. Peaks in spring and fall/winter were caused by Hantaan and Seoul viruses, respectively. Rodent hosts were the striped field mouse for Hantaan virus and the brown rat and house mouse for Seoul virus.
Subject(s)
Hemorrhagic Fever with Renal Syndrome/epidemiology , Adult , China/epidemiology , Geography, Medical , Hantaan virus , Hemorrhagic Fever with Renal Syndrome/history , History, 21st Century , Humans , Incidence , Middle Aged , Mortality , SeasonsABSTRACT
Dialdehyde 8-aminoquinoline starch (DASQA) was synthesized by the reaction of dialdehyde starch (DAS) and 8-aminoquinoline and was used to adsorb various ions from aqueous solution. DASQA was characterized by Fourier transform infrared (FT-IR) spectra, thermogravimetric analysis, X-ray diffraction analysis. The adsorption properties of the polymer for Pb(2+), Cu(2+), Cd(2+), Ni(2+), and Zn(2+) were investigated. The result of the experiment reveals that the adsorption for Cd(2+) and Zn(2+)were approximately 2.51 mmol/g, 2.17 mmol/g, followed by Pb(2+) 1.93 mmol/g, Ni(2+) 1.66 mmol/g, Cu(2+) 1.19 mmol/g. Furthermore, the kinetic experiments indicated that the adsorption of DASQA for the above metal ions achieved equilibrium within 2 h. Therefore, DASQA is an effective adsorbent for the removal of different heavy metal ions from industrial waste solutions.
