Options
Physicochemical investigation of rainfall for managed aquifer recharge in Punjab (Pakistan)
Citation Link: https://doi.org/10.15480/882.4464
Publikationstyp
Journal Article
Publikationsdatum
2022-07-07
Sprache
English
Enthalten in
Volume
14
Issue
14
Article Number
2155
Citation
Water 14 (14): 2155 (2022-07-07)
Publisher DOI
Scopus ID
Publisher
Multidisciplinary Digital Publishing Institute
In a water-scarce country such as Pakistan, rainfall is the third-largest source of freshwater. In most of the urban cities of the country, rainwater is mixed with sewerage and is rendered useless for managed aquifer recharge purposes. Therefore, this study investigates the rainfall potential for managed aquifer recharge in Lahore (Pakistan). The present research was designed and conducted by the Irrigation Research Institute (IRI). Three different sites were selected for rainwater sample collection across the study area (Lahore), ranging from urban to rural areas. The rainwater samples were collected and divided into three categories (direct capture, rooftop runoff, street runoff). For longer rainfall events, the effect of time on the quality of the collected rainwater samples was also studied. Spatiotemporal trends of turbidity, pH, electrical conductivity, total dissolved solids, carbonates, bicarbonates, chloride, calcium, magnesium, and hardness in the collected rainwater samples were investigated. In terms of TDS, results indicated that directly captured rainwater is most suitable for managed aquifer recharge (TDS < 50 ppm), followed by rooftop runoff (TDS < 100 ppm). In addition, the quality of rainwater samples collected at the rural site was comparatively better. Moreover, the quality of rainwater samples improved after the initial ten minutes. All in all, this study concludes that direct capture of rainwater is the most suitable option for managed aquifer recharge.
Schlagworte
rainwater harvesting
groundwater recharge
Lahore
Pakistan
DDC Class
550: Geowissenschaften
600: Technik
620: Ingenieurwissenschaften
More Funding Information
This research received no external funding.
Publication version
publishedVersion
Loading...
Name
water-14-02155.pdf
Size
6.33 MB
Format
Adobe PDF