Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, China
The present study focuses on the shallow phreatic aquifer (SA) and the upper confined aquifer (CA) developed in Cenozoic loose strata, which are the major regional groundwater resources for drinking, irrigation, industry and other water-related activities. Seven samples from SA and seventeen samples...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IWA Publishing
2022-03-01
|
| Series: | Water Supply |
| Subjects: | |
| Online Access: | http://ws.iwaponline.com/content/22/3/2644 |
| _version_ | 1818055324110684160 |
|---|---|
| author | Jie Ma Song Chen Songbao Feng Diandian Ding |
| author_facet | Jie Ma Song Chen Songbao Feng Diandian Ding |
| author_sort | Jie Ma |
| collection | DOAJ |
| description | The present study focuses on the shallow phreatic aquifer (SA) and the upper confined aquifer (CA) developed in Cenozoic loose strata, which are the major regional groundwater resources for drinking, irrigation, industry and other water-related activities. Seven samples from SA and seventeen samples from CA were analyzed to depict the hydrochemical characteristics, categorize the hydrochemical facies, evaluate the hydraulic connectivity, and appraise the drinking water and irrigation water quality. The abundance of cations is Na+ > Ca2+ > Mg2+ > K+ and the anions is HCO3− > SO42− > Cl− in both aquifers, respectively. Groundwater chemistry is controlled by water-rock interactions such as halite dissolution, ion exchange, reverse ion exchange, silicate weathering, and followed by the dissolution of Glauber's salt. The low connectivity and moderate connectivity between these two aquifers has engendered. The majority of the ion concentrations are within the limit for drinking, only one sample from the shallow aquifer was greater than the limit of 250 mg/L, a total of 29% from the shallow unconfined aquifer and 14% from the confined aquifer are not within the limit of 250 mg/L. The sodium absorption ratio (SAR), residual sodium carbonate (RSC) and soluble sodium percentage (%Na) values reveal that all the samples are appropriate for irrigation uses. The the US salinity laboratory (USSL) diagram shows that sixteen CA samples and all the SA samples fall in the C3S1 zone, implying high salinity hazard and low alkalinity hazard. HIGHLIGHTS
Hydrochemical characteristics and water-rock interactions were depicted.;
Connectivity index, stable isotope analysis, and cluster analysis were put forward to evaluate the hydraulic connectivity between the shallow phreatic aquifer and the upper confined aquifer developed in Cenozoic loose strata.;
The suitability for drinking and irrigation purposes was assessed, respectively.; |
| first_indexed | 2024-12-10T12:11:08Z |
| format | Article |
| id | doaj.art-d1f78327892e41578bd212c07f3b2bf5 |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-12-10T12:11:08Z |
| publishDate | 2022-03-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-d1f78327892e41578bd212c07f3b2bf52022-12-22T01:49:22ZengIWA PublishingWater Supply1606-97491607-07982022-03-012232644265810.2166/ws.2021.445445Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, ChinaJie Ma0Song Chen1Songbao Feng2Diandian Ding3 School of Resources and Civil Engineering, Suzhou University, Suzhou, Anhui, China School of Resources and Civil Engineering, Suzhou University, Suzhou, Anhui, China School of Resources and Civil Engineering, Suzhou University, Suzhou, Anhui, China School of Resources and Civil Engineering, Suzhou University, Suzhou, Anhui, China The present study focuses on the shallow phreatic aquifer (SA) and the upper confined aquifer (CA) developed in Cenozoic loose strata, which are the major regional groundwater resources for drinking, irrigation, industry and other water-related activities. Seven samples from SA and seventeen samples from CA were analyzed to depict the hydrochemical characteristics, categorize the hydrochemical facies, evaluate the hydraulic connectivity, and appraise the drinking water and irrigation water quality. The abundance of cations is Na+ > Ca2+ > Mg2+ > K+ and the anions is HCO3− > SO42− > Cl− in both aquifers, respectively. Groundwater chemistry is controlled by water-rock interactions such as halite dissolution, ion exchange, reverse ion exchange, silicate weathering, and followed by the dissolution of Glauber's salt. The low connectivity and moderate connectivity between these two aquifers has engendered. The majority of the ion concentrations are within the limit for drinking, only one sample from the shallow aquifer was greater than the limit of 250 mg/L, a total of 29% from the shallow unconfined aquifer and 14% from the confined aquifer are not within the limit of 250 mg/L. The sodium absorption ratio (SAR), residual sodium carbonate (RSC) and soluble sodium percentage (%Na) values reveal that all the samples are appropriate for irrigation uses. The the US salinity laboratory (USSL) diagram shows that sixteen CA samples and all the SA samples fall in the C3S1 zone, implying high salinity hazard and low alkalinity hazard. HIGHLIGHTS Hydrochemical characteristics and water-rock interactions were depicted.; Connectivity index, stable isotope analysis, and cluster analysis were put forward to evaluate the hydraulic connectivity between the shallow phreatic aquifer and the upper confined aquifer developed in Cenozoic loose strata.; The suitability for drinking and irrigation purposes was assessed, respectively.;http://ws.iwaponline.com/content/22/3/2644groundwaterhydraulic connectivityhydrochemistryisotope analysiswater quality assessment |
| spellingShingle | Jie Ma Song Chen Songbao Feng Diandian Ding Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, China Water Supply groundwater hydraulic connectivity hydrochemistry isotope analysis water quality assessment |
| title | Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, China |
| title_full | Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, China |
| title_fullStr | Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, China |
| title_full_unstemmed | Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, China |
| title_short | Hydrochemical characteristics, hydraulic connectivity and water quality assessment of multilayer aquifers in Western Suzhou City, Northern Anhui Province, China |
| title_sort | hydrochemical characteristics hydraulic connectivity and water quality assessment of multilayer aquifers in western suzhou city northern anhui province china |
| topic | groundwater hydraulic connectivity hydrochemistry isotope analysis water quality assessment |
| url | http://ws.iwaponline.com/content/22/3/2644 |
| work_keys_str_mv | AT jiema hydrochemicalcharacteristicshydraulicconnectivityandwaterqualityassessmentofmultilayeraquifersinwesternsuzhoucitynorthernanhuiprovincechina AT songchen hydrochemicalcharacteristicshydraulicconnectivityandwaterqualityassessmentofmultilayeraquifersinwesternsuzhoucitynorthernanhuiprovincechina AT songbaofeng hydrochemicalcharacteristicshydraulicconnectivityandwaterqualityassessmentofmultilayeraquifersinwesternsuzhoucitynorthernanhuiprovincechina AT diandianding hydrochemicalcharacteristicshydraulicconnectivityandwaterqualityassessmentofmultilayeraquifersinwesternsuzhoucitynorthernanhuiprovincechina |