Soil Aquifer Treatment for Additional Upgrading Wastewater Effluent

Soil aquifer treatment (SAT) has been shown to provide significant reductions of wastewater effluent organic matter (EfOM). While SAT can renovate wastewater effluent to levels commensurate with potable reuse, SAT represents only a single treatment barrier. Membrane filtration has been demonstrated to be an alternative treatment process for wastewater reclamation. However, the performance of membrane filtration is significantly constrained by membrane fouling, reducing membrane productivity in terms of flux decline. Soil aquifer treatment (SAT) is used as a primary barrier in the reclamation system to remove a complex suite of chemical and biological contaminants in wastewater. This study of membrane filtration of SAT-source waters is intended to determine the benefits of the SAT system in terms of membrane fouling reduction with membrane filtration providing a secondary barrier. Membrane treatment of SAT-recovered water provides a multiple barrier exhibiting additional organic matter removal. Moreover, the SAT system also provides for storage of reclaimed water. The synergy between SAT and membrane treatment has led to the concept of an integrated SAT-membrane system for potable reuse.

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Fate of effluent organic matter during soil aquifer treatment: biodegradability, chlorine reactivity and genotoxicity

Journal of Water and Health ◽

10.2166/wh.2003.0005 ◽

2003 ◽

Vol 1 (1) ◽

pp. 33-44 ◽

Cited By ~ 10

Author(s):

David M. Quanrud ◽

Robert G. Arnold ◽

Kevin E. Lansey ◽

Carmen Begay ◽

Wendell Ela ◽

...

Keyword(s):

Organic Matter ◽

Vadose Zone ◽

Wastewater Effluent ◽

Soil Aquifer Treatment ◽

Batch Test ◽

Trihalomethane Formation Potential ◽

Doc Concentration ◽

Resin Adsorption ◽

Light Absorbance ◽

Mass Basis

Hydrophobic acid (HPO-A) and transphilic acid (TPI-A) fractions of dissolved organic matter (DOM) were isolated from a domestic secondary wastewater effluent that was polished via soil aquifer treatment (SAT). Fractions were isolated using XAD resin adsorption chromatography from samples obtained along the vadose zone flowpath at a full-scale basin recharge facility in Tucson, Arizona. Changes in isolate character during SAT were established via biodegradability (batch test), specific ultraviolet light absorbance (SUVA), trihalomethane formation potential (THMFP), and Ames mutagenicity assays. The dissolved organic carbon (DOC) concentration decreased by >90% during SAT. A significant fraction (up to 20%) of isolated post-SAT HPO-A was biodegradable. The (apparent) refractory nature of DOM that survives SAT may be a consequence of low DOC concentration in groundwater as well as the nature of the compounds themselves. Specific THMFP (µg THM per mg DOC) of HPO-A and TPI-A varied little as a consequence of SAT, averaging 52 and 49 µg THM per mg DOC, respectively. The nonbiodegradable fractions of HPO-A and TPI-A exhibited higher reactivities: 89 and 95 µg THM per mg DOC, respectively. Genotoxicity of HPO-A (on a per mass basis) increased after SAT, suggesting that responsible compounds are removed less efficiently than bulk organics during vadose zone transport.

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Potential indicators of virus transport and removal during soil aquifer treatment of treated wastewater effluent

Water Research ◽

10.1016/j.watres.2020.115812 ◽

2020 ◽

Vol 177 ◽

pp. 115812 ◽

Cited By ~ 2

Author(s):

Christina M. Morrison ◽

Walter Q. Betancourt ◽

Daniel R. Quintanar ◽

Gerardo U. Lopez ◽

Ian L. Pepper ◽

...

Keyword(s):

Wastewater Effluent ◽

Treated Wastewater ◽

Soil Aquifer Treatment ◽

Virus Transport

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Inactivation of Murine Norovirus and MS2 Bacteriophage by Peracetic Acid and Monochloramine in Municipal Secondary Wastewater Effluent

Proceedings of the Water Environment Federation ◽

10.2175/193864717822157955 ◽

2017 ◽

Vol 2017 (9) ◽

pp. 3095-3102

Author(s):

Joseph G Jacangelo ◽

Nathan Dunkin ◽

Shih-Chi Weng ◽

James McQuarrie ◽

Kati Bell ◽

...

Keyword(s):

Peracetic Acid ◽

Wastewater Effluent ◽

Murine Norovirus ◽

Ms2 Bacteriophage

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Transformation of organic matters in sewage during A2O and soil aquifer treatment processes

Journal of Japan Society of Civil Engineers Ser G (Environmental Research) ◽

10.2208/jscejer.75.7_iii_41 ◽

2019 ◽

Vol 75 (7) ◽

pp. III_41-III_52

Author(s):

Fumitake NISHIMURA ◽

Ryosuke SUZUKI ◽

Yugo TAKABE ◽

Taira HIDAKA ◽

Yasunari KUSUDA ◽

...

Keyword(s):

Soil Aquifer Treatment ◽

Organic Matters ◽

Treatment Processes

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Characterization of a Shallow Coastal Aquifer in the Framework of a Subsurface Storage and Soil Aquifer Treatment Project Using Electrical Resistivity Tomography (Port de la Selva, Spain)

Applied Sciences ◽

10.3390/app11062448 ◽

2021 ◽

Vol 11 (6) ◽

pp. 2448

Author(s):

Alex Sendrós ◽

Aritz Urruela ◽

Mahjoub Himi ◽

Carlos Alonso ◽

Raúl Lovera ◽

...

Keyword(s):

Electrical Resistivity ◽

Water Reuse ◽

Electrical Resistivity Tomography ◽

Groundwater Modeling ◽

Geophysical Methods ◽

Soil Aquifer Treatment ◽

Modeling Tools ◽

Resistivity Tomography ◽

Implicit Modeling ◽

The Difference

Water percolation through infiltration ponds is creating significant synergies for the broad adoption of water reuse as an additional non-conventional water supply. Despite the apparent simplicity of the soil aquifer treatment (SAT) approaches, the complexity of site-specific hydrogeological conditions and the processes occurring at various scales require an exhaustive understanding of the system’s response. The non-saturated zone and underlying aquifers cannot be considered as a black box, nor accept its characterization from few boreholes not well distributed over the area to be investigated. Electrical resistivity tomography (ERT) is a non-invasive technology, highly responsive to geological heterogeneities that has demonstrated useful to provide the detailed subsurface information required for groundwater modeling. The relationships between the electrical resistivity of the alluvial sediments and the bedrock and the difference in salinity of groundwater highlight the potential of geophysical methods over other more costly subsurface exploration techniques. The results of our research show that ERT coupled with implicit modeling tools provides information that can significantly help to identify aquifer geometry and characterize the saltwater intrusion of shallow alluvial aquifers. The proposed approaches could improve the reliability of groundwater models and the commitment of stakeholders to the benefits of SAT procedures.

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