Assessment of Water Quality Using Chemometrics and Multivariate Statistics: A Case Study in Chaobai River Replenished by Reclaimed Water, North China

doi:10.3390/w12092551

	Assessment of Water Quality Using Chemometrics and Multivariate Statistics: A Case Study in Chaobai River Replenished by Reclaimed Water, North China
	Yu, Yilei 1,2; Song, Xianfang 3; Zhang, Yinghua 3; Zheng, Fandong 4
刊名	WATER
	2020-09-01
卷号	12 期号:9 页码:23
关键词	water chemistry river water reclaimed water multivariate statistics Chaobai River
DOI	10.3390/w12092551
通讯作者	Song, Xianfang(songxf@igsnrr.ac.cn)
英文摘要	Dry rivers could be effectively recovered by reclaimed water in North China, while river water quality would be an important issue. Therefore, it is important to understand the spatiotemporal variation and controlling factors of river water. Water samples were collected during March, May, July, September, and November in the year 2010, then 20 parameters were analyzed. The water environment was oxidizing and alkaline, which was beneficial for nitrification. Nitrate was the main nitrogen form. Depleted and enriched isotopes were found in reclaimed water and river water, respectively. Total nitrogen (TN) and total phosphorus (TP) of reclaimed water exceed the threshold of reclaimed water reuse standard and Class V in the surface water quality criteria. Most river water was at the severe eutrophication level. The sodium adsorption ratio indicated a medium harmful level for irrigation purpose. Significant spatial and temporal variation was explored by cluster analysis. Five months and nine stations were both classified into two distinct clusters. It was found that 6 parameters (chloride: Cl-, sulphate: SO42-, potassium: K+, sodium: Na+, magnesium: Mg2+, and total dissolved solids: TDS) had significant upward temporal variation, and 12 parameters (dissolved oxygen: DO, electric conductivity: EC, bicarbonate: HCO3-, K+, Na+, Ca2+, TDS, nitrite-nitrogen: NO2-N, nitrate nitrogen: NO3-N, TN, TP, and chlorophyll a:Chl.a) and 4 parameters (Mg2+, ammonia nitrogen: NH3-N, and the oxygen-18 and hydron-2 stable isotope: delta O-18 and delta H-2) had a significant downward and upward spatial trend, respectively. The Gibbs plot showed that river water chemistry was mainly controlled by a water-rock interaction. The ionic relationship and principal component analysis showed that river water had undergone the dissolution of carbonate, calcite, and silicate minerals, cation exchange, a process of nitrification, photosynthesis of phytoplankton, and stable isotope enrichment. In addition, gypsum and salt rock have a potential dissolution process.
资助项目	Chinese Academy of Forestry[CAFYBB2019GC001-22] ; Chinese Academy of Forestry[CAFYBB2017ZA007] ; National Natural Science Foundation of China[41601037]
WOS关键词	WASTE-WATER ; PHOSPHORUS RELEASE ; DISSOLVED-OXYGEN ; CHLOROPHYLL-A ; ION-EXCHANGE ; PHYTOPLANKTON ; DENITRIFICATION ; GROUNDWATER ; CHEMISTRY ; BASIN
WOS研究方向	Water Resources
语种	英语
出版者	MDPI
WOS记录号	WOS:000580936400001
资助机构	Chinese Academy of Forestry ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/157115]
专题	中国科学院地理科学与资源研究所
通讯作者	Song, Xianfang
作者单位	1.Chinese Acad Forestry, Inst Wetland Res, Beijing 100091, Peoples R China 2.Beijing Key Lab Wetland Serv & Restorat, Beijing 100091, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.Beijing Water Sci & Technol Inst, Beijing 10048, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yilei,Song, Xianfang,Zhang, Yinghua,et al. Assessment of Water Quality Using Chemometrics and Multivariate Statistics: A Case Study in Chaobai River Replenished by Reclaimed Water, North China[J]. WATER,2020,12(9):23.
APA	Yu, Yilei,Song, Xianfang,Zhang, Yinghua,&Zheng, Fandong.(2020).Assessment of Water Quality Using Chemometrics and Multivariate Statistics: A Case Study in Chaobai River Replenished by Reclaimed Water, North China.WATER,12(9),23.
MLA	Yu, Yilei,et al."Assessment of Water Quality Using Chemometrics and Multivariate Statistics: A Case Study in Chaobai River Replenished by Reclaimed Water, North China".WATER 12.9(2020):23.