材料期刊网

The water quality monitoring operation to evaluate the water quality of polluted river is an extremely important task for the river-watershed management/control based on the environmental policy.In this study,the novel,simple and convenient water quality monitoring of Jialing-River in Chongqing,China was carried out using an advanced ion chromatography (IC) consisting of ion-exclusion/cation-exchange chromatography (IEC/CEC) with conductivity detection for determining simultaneously the common anions such as SO42 -,Cl -,and NO3- and the cations such as Na+,NH4+,K+,Mg2+,and Ca2+,the ion-exclusion chromatography (IEC) with visible detection for determining simultaneously the nutrient components such as phosphate and silicate ions,and the IEC with the enhanced conductivity detection using a post column of K+ -form cation-exchange resin for determining HCO3- -alkalinity as an inorganic-carbon source for biomass synthesis in biological reaction process under the aerobic conditions.According to the ionic balance theory between the total equivalent con-centrations of anions and cations,the water quality evaluation of the Jialing-River waters taking at different sampling sites in Chongqing metropolitan area was carried out using the advanced IC system.As a result,the effectiveness of this novel water quality monitoring methodology using the IC system was demonstrated on the several practical applications to a typical biological sewage treatment plant on Jialing-River of Chongqing.