Yu Yilei1; Song Xianfang1; Zhang Yinghua1; Zheng Fandong2; Ji Liang2; Han Dongmei1; Ying Ma1; Bu Hongmei1
Source Publicationjournalofenvironmentalsciences
AbstractReclaimed water was successfully used to recover the dry Chaobai River in Northern China, but groundwater may be polluted. To ensure groundwater protection, it is therefore critical to identify the governing factors of groundwater chemistry. Samples of reclaimed water, river and groundwater were collected monthly at Chaobai River from January to September in 2010. Fifteen water parameters were analyzed. Two kinds of reclaimed water were different in type (Na-Ca-Mg-Cl-HCO3 or Na-Ca-Cl-HCO3) and concentration of nitrogen. The ionic concentration and type in river were similar to reclaimed water. Some shallow wells near the river bed had the same type (Na-Ca-Mg-Cl-HCO3) and high concentration as reclaimed water, but others were consistent with the deep wells (Ca-Mg-HCO3). Using cluster analysis, the 9 months were divided into two periods (dry and wet seasons), and all samples were grouped into several spatial clusters, indicating different controlling mechanisms. Principal component analysis and conventional ionic plots showed that calcium, magnesium and bicarbonate were controlled by water-rock interaction in all deep and some shallow wells. This included the dissolution of calcite and carbonate weathering. Sodium, potassium, chloride and sulfate in river and some shallow wells recharged by river were governed by evaporation crystallization and mixing of reclaimed water. But groundwater chemistry was not controlled by precipitation. During the infiltration of reclaimed water, cation exchange took place between (sodium, potassium) and (calcium, magnesium). Nitrification and denitrification both happened in most shallow groundwater, but only denitrification in deep groundwater.
Funding Project[National Basic Research Program (973) of China] ; [Beijing Important Scientific and Technological Program]
Document Type期刊论文
2.Institute of Beijing Hydraulic Research
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Yu Yilei,Song Xianfang,Zhang Yinghua,et al. identificationofkeyfactorsgoverningchemistryingroundwaternearthewatercourserechargedbyreclaimedwateratmiyuncountynorthernchina[J]. journalofenvironmentalsciences,2013,25(9):1754.
APA Yu Yilei.,Song Xianfang.,Zhang Yinghua.,Zheng Fandong.,Ji Liang.,...&Bu Hongmei.(2013).identificationofkeyfactorsgoverningchemistryingroundwaternearthewatercourserechargedbyreclaimedwateratmiyuncountynorthernchina.journalofenvironmentalsciences,25(9),1754.
MLA Yu Yilei,et al."identificationofkeyfactorsgoverningchemistryingroundwaternearthewatercourserechargedbyreclaimedwateratmiyuncountynorthernchina".journalofenvironmentalsciences 25.9(2013):1754.
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