干旱区生态环境知识资源中心(Arid): Appraisal of subsurface hydrogeochemical processes in a geologically heterogeneous semi-arid region of south India based on mass transfer and fuzzy comprehensive modeling

Arid

DOI	10.1007/s10653-020-00676-2
	Appraisal of subsurface hydrogeochemical processes in a geologically heterogeneous semi-arid region of south India based on mass transfer and fuzzy comprehensive modeling
	Karunanidhi, D.; Aravinthasamy, P.; Deepali, M.; Subramani, T.; Sunkari, Emmanuel Daanoba
通讯作者	Karunanidhi, D
来源期刊	ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
ISSN	0269-4042
EISSN	1573-2983
英文摘要	The main aim of the present study was to examine the quality of the groundwater and decipher the sources of groundwater fluoride through mass balance modeling based on fluoride exposure in a geologically heterogeneous semi-arid region of southern India. This was achieved by hydrogeochemical analysis, graphical methods, and mass transfer modeling approaches. Fuzzy comprehensive technique was applied to evaluate the quality of groundwater for groundwater management. In this regard, 61 groundwater samples were obtained from open wells and bore wells and analyzed for different physicochemical parameters. The major cation and anion abundances follow the order Na+ > Ca2+ > Mg2+ > K(+)and Cl- > HCO3- > SO42- > NO3- > PO43-. About 88.4% and 34.4% of the total water samples were dominated with Na(+)and Cl(-)ions in this region, respectively. The fluoride level in groundwater ranged from 0.10 to 3.30 mg/l with a mean value of 1.04 mg/l. Nearly 25% of the groundwater samples collected from 15 villages showed fluoride concentrations exceeding the maximum permissible limit of 1.5 mg/l as per the World Health Organization recommendations for human intake. More than 85% of the samples fell under strong acid (Cl(-)and SO42-) type. The amount of groundwater salinization in this region was 70.5% since the Revelle index (RI) was excess in the groundwater samples (RI > 0.5 meq/l). Silicate weathering, cation exchange, and gypsum dissolution were the dominant geogenic processes in the aquifer system influencing groundwater chemistry and nullified the possibility of carbonate dissolution. Saturation indices revealed the contribution of sequestration of CaCO(3)in F(-)enrichment. Total dissolved solids showed strong positive correlations with Na+, Ca2+, Mg2+, Cl-, SO(4)(2-)and NO(3-)indicating the contribution of anthropogenic inputs to groundwater chemistry in addition to geogenic sources. The results of the fuzzy comprehensive method indicated that 33% of the groundwater samples fell under fair water type, 2% and 11% of the samples fell under poor and very poor quality water types, respectively. Therefore, this work will be helpful for the decision-makers to plan for the sustainable management of groundwater resources.
英文关键词	Geochemistry Fluoride Mass balance modeling Fuzzy comprehensive method South India
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000552923100001
WOS关键词	HUMAN HEALTH-RISK ; GROUNDWATER QUALITY ; TAMIL-NADU ; STATISTICAL APPROACH ; RIVER-BASIN ; FLUORIDE ; AREA ; CONTAMINATION ; CHEMISTRY ; NORTHWEST
WOS类目	Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328118
作者单位	[Karunanidhi, D.; Aravinthasamy, P.] Sri Shakthi Inst Engn & Technol, Dept Civil Engn, Coimbatore 641062, Tamil Nadu, India; [Deepali, M.] Priyadarshini Inst Engn & Technol, Dept Appl Chem, Nagpur 440019, Maharashtra, India; [Subramani, T.] Anna Univ, CEG, Dept Geol, Chennai 600025, Tamil Nadu, India; [Sunkari, Emmanuel Daanoba] Nigde Omer Halisdemir Univ, Fac Engn, Dept Geol Engn, Main Campus, TR-51240 Nigde, Turkey
推荐引用方式 GB/T 7714	Karunanidhi, D.,Aravinthasamy, P.,Deepali, M.,et al. Appraisal of subsurface hydrogeochemical processes in a geologically heterogeneous semi-arid region of south India based on mass transfer and fuzzy comprehensive modeling[J].
APA	Karunanidhi, D.,Aravinthasamy, P.,Deepali, M.,Subramani, T.,&Sunkari, Emmanuel Daanoba.
MLA	Karunanidhi, D.,et al."Appraisal of subsurface hydrogeochemical processes in a geologically heterogeneous semi-arid region of south India based on mass transfer and fuzzy comprehensive modeling".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH