Implications of Soil Aquifer Treatment for Sustainable Water Reuse on Groundwater Quality

Fox, Peter; Nellor, Margaret H.; Arnold, Bob; Lansey, Kevin; Bassett, R. L.; Gerba, Charles P.; Amy, Gary L.; Yanko, William A.; Baird, Rodger B.; Reinhard, Martin; Houston, Sandra L.; Drewes, Jörg E.

doi:10.1061/40430(1999)28

Cited by 13 publications

(23 citation statements)

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“…There was a further expansion of the basins in 2011 as the recharge target had not been reached, and by September 2012 the five expanded basins now cover a total recharge area of approximately 38,400 m 2 . Basin A is approximately 7300 m 2 , Basin B is 8500 m 2 , Basin C is 8100 m 2 , Basin D is 6600 m 2 and Basin E is 7900 m 2 . Figure 3 shows the outline of the current 5-basin configuration.…”

Section: Study Site and Operationsmentioning

confidence: 99%

“…SAT has the potential to provide biodegradation of nutrients in the recharge water if anoxic conditions develop in the vadose zone [2]. The process of alternately wetting and drying the basins, besides managing clogging, is intended to allow aerobic and anoxic redox conditions to develop beneath the basins to facilitate nitrogen consumption.…”

Section: Recharge Water and Groundwater Qualitymentioning

confidence: 99%

“…Typically, sufficient labile organic carbon must be present for nitrate removal via heterotrophic denitrification. However ammonia oxidation, called the ANAMMOX (Anaerobic Ammonium Oxidation) process is an alternative pathway for conversion of nitrate to nitrogen gas that does not require organic carbon [2], but does require anoxic conditions. Only 20% removal of total nitrogen occurred in the vadose zone beneath the SAT basins, suggesting nitrogen removal was limited in this study [24].…”

Section: Recharge Water and Groundwater Qualitymentioning

confidence: 99%

“…Management strategies include pre-treatment of the recharge water to minimize clogging [7,8], along with remediation measures such as drying and desiccation of the basin surface [9]. Operation of SAT basins in alternating wet and dry cycles to develop anoxic and oxic conditions can optimize the potential for biological treatment processes [2]. Remediation measures are also influenced by the sediment properties of the individual basins [10].…”

Section: Study Site and Operationsmentioning

confidence: 99%

“…Infiltration techniques such as soil aquifer treatment (SAT) are attractive options in supporting irrigation as they are nominally lower in cost than well injection schemes [1] and they can take advantage of the potential for natural treatment through the unsaturated zone [2]. Australia has tremendous potential to increase the amount of water that is recycled via managed aquifer recharge (MAR), as a large proportion of the Australian landscape is covered in favorable sedimentary deposits of sand, gravel and limestone.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Assessing the Impact of Recycled Water Quality and Clogging on Infiltration Rates at A Pioneering Soil Aquifer Treatment (SAT) Site in Alice Springs, Northern Territory (NT), Australia

Barry

Vanderzalm

Miotliński

et al. 2017

Water

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Infiltration techniques for managed aquifer recharge (MAR), such as soil aquifer treatment (SAT) can facilitate low-cost water recycling and supplement groundwater resources. However there are still challenges in sustaining adequate infiltration rates in the presence of lower permeability sediments, especially when wastewater containing suspended solids and nutrients is used to recharge the aquifer. To gain a better insight into reductions in infiltration rates during MAR, a field investigation was carried out via soil aquifer treatment (SAT) using recharge basins located within a mixture of fine and coarse grained riverine deposits in Alice Springs, Northern Territory, Australia. A total of 2.6 Mm 3 was delivered via five SAT basins over six years; this evaluation focused on three years of operation (2011)(2012)(2013)(2014), recharging 1.5 Mm 3 treated wastewater via an expanded recharge area of approximately 38,400 m 2 . Average infiltration rates per basin varied from 0.1 to 1 m/day due to heterogeneous soil characteristics and variability in recharge water quality. A treatment upgrade to include sand filtration and UV disinfection (in 2013) prior to recharge improved the average infiltration rate per basin by 40% to 100%.

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Section: Study Site and Operationsmentioning

confidence: 99%

Section: Recharge Water and Groundwater Qualitymentioning

confidence: 99%

Section: Recharge Water and Groundwater Qualitymentioning

confidence: 99%

Section: Study Site and Operationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Assessing the Impact of Recycled Water Quality and Clogging on Infiltration Rates at A Pioneering Soil Aquifer Treatment (SAT) Site in Alice Springs, Northern Territory (NT), Australia

Barry

Vanderzalm

Miotliński

et al. 2017

Water

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Forest fire effects on groundwater in a coastal aquifer (Ravenna, Italy)

Giambastiani

Greggio

Nobili

et al. 2018

Hydrological Processes

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We examined the fire-induced changes in groundwater recharge rate. This aspect is particularly important in the case of large forested areas growing over a coastal aquifer affected by saltwater intrusion. In the Ravenna coastal area (Italy), pine forests grow on coastal dune belts, overlying a sandy unconfined aquifer, which is strongly affected by marine ingression. Three groundwater profiles across the forest and perpendicular to the coastline were monitored for groundwater level, physical, and chemical parameters. The aims were to define groundwater quality, recharge rate, freshwater volume, and highlight change, which occurred after a forest fire with reference to pre-fire conditions. Analytical solutions based on Darcy Law and the Dupuit Equation were applied to calculate unconfined flow and compare recharge rates among the profiles. The estimated recharge rates increased in the partially and completely burnt areas (219 and 511 mm year −1 , respectively) compared with the pristine pine forest area (73 mm year −1 ). Although pre-fire conditions were similar in all monitored profiles, a post-fire decrease in salinity was observed across the burnt forest, along with an increase in infiltration and freshwater lens thickness. This was attributed to decrease canopy interception and evapotranspiration caused by vegetation absence after the fire. This research provided an example of positive forest fire feedback on the quantity and quality of fresh groundwater resources in a lowland coastal aquifer affected by saltwater intrusion, with limited availability of freshwater resources. The fire provided an opportunity to evaluate a new forest management approach and consider the restoration and promotion of native dune herbaceous vegetation.

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Reduction of trihalomethane precursors of dissolved organic matter in the secondary effluent by advanced treatment processes

Wei

Zhao

Xue

et al. 2009

Journal of Hazardous Materials

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Implications of Soil Aquifer Treatment for Sustainable Water Reuse on Groundwater Quality

Cited by 13 publications

References 0 publications

Assessing the Impact of Recycled Water Quality and Clogging on Infiltration Rates at A Pioneering Soil Aquifer Treatment (SAT) Site in Alice Springs, Northern Territory (NT), Australia

Assessing the Impact of Recycled Water Quality and Clogging on Infiltration Rates at A Pioneering Soil Aquifer Treatment (SAT) Site in Alice Springs, Northern Territory (NT), Australia

Forest fire effects on groundwater in a coastal aquifer (Ravenna, Italy)

Reduction of trihalomethane precursors of dissolved organic matter in the secondary effluent by advanced treatment processes

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