Field site soil aquifer treatment shows enhanced wastewater quality: evidence from vadose zone hydro-geophysical observations
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Title |
Field site soil aquifer treatment shows enhanced wastewater quality: evidence from vadose zone hydro-geophysical observations
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Creator |
Sahya, A.
Sonkamble, S. Jampani, Mahesh Rao, A. N. Amerasinghe, Priyanie |
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Subject |
wastewater treatment
nature-based solutions water quality parameters experimentation soil moisture aquifers groundwater wastewater irrigation periurban areas river basins hydrogeology pollutants |
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Description |
Soil aquifer treatment (SAT) is an emerging, nature-based, economically viable wastewater treatment solution. Currently, most SAT experiments are done at the laboratory scale, which cannot generate the same conditions as natural field sites and limits the understanding of treatment efficiency. The current study carried out in situ SAT experiments in the Musi River basin in India, where wastewater irrigation is a common practice. SAT efficiency was determined using an integrated approach, including electrical resistivity tomography (ERT) surveys, soil investigations (grain size, permeability, and moisture measurements), and biochemical characterization of raw and SAT treated wastewater. The ERT scans of SAT column show lower order electrical resistivity 10-30 O-m with enhanced chargeability >5–6 mV/V attributed to the vadose zone, characterized by clay-rich soil and sandy soil up to 5–6 m depth. The increase in sand percentage (>70%) below 140–160 cm depth corroborates with the high moisture content (23.5%). The vadose zone permeability (K) 1.58 m/day and discharge (Q) 38.19 m3/day is used to determine the pollutants reduction efficiency of SAT column. Hydrogeological and biogeochemical observations reveal that the improved dissolved oxygen from
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Date |
2023-08-15
2023-08-29T03:12:17Z 2023-08-29T03:12:17Z |
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Type |
Journal Article
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Identifier |
Sahya, A.; Sonkamble, S.; Jampani, Mahesh; Rao, A. N.; Amerasinghe, Priyanie. 2023. Field site soil aquifer treatment shows enhanced wastewater quality: evidence from vadose zone hydro-geophysical observations. Journal of Environmental Management, 345:118749. (Online first) [doi: https://doi.org/10.1016/j.jenvman.2023.118749]
0301-4797 https://hdl.handle.net/10568/131664 https://vlibrary.iwmi.org/pdf/H052159.pdf https://doi.org/10.1016/j.jenvman.2023.118749 H052159 |
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Language |
en
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Rights |
Copyrighted; all rights reserved
Limited Access |
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Format |
345:118749. (Online first)
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Source |
Journal of Environmental Management
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