Attenuation of bulk organic matter, nutrients (N and P), and pathogen indicators during soil passage: Effect of temperature and redox conditions in simulated soil aquifer treatment (SAT)

Handle URI:
http://hdl.handle.net/10754/562244
Title:
Attenuation of bulk organic matter, nutrients (N and P), and pathogen indicators during soil passage: Effect of temperature and redox conditions in simulated soil aquifer treatment (SAT)
Authors:
Abel, Chol D T; Sharma, Saroj K.; Malolo, Yona N.; Maeng, Sungkyu; Kennedy, Maria Dolores; Amy, Gary L.
Abstract:
Soil aquifer treatment (SAT) is a costeffective natural wastewater treatment and reuse technology. It is an environmentally friendly technology that does not require chemical usage and is applicable to both developing and developed countries. However, the presence of organic matter, nutrients, and pathogens poses a major health threat to the population exposed to partially treated wastewater or reclaimed water through SAT. Laboratory-based soil column and batch experiments simulating SAT were conducted to examine the influence of temperature variation and oxidation-reduction (redox) conditions on removal of bulk organic matter, nutrients, and indicator microorganisms using primary effluent. While an average dissolved organic carbon (DOC) removal of 17.7 % was achieved in soil columns at 5 °C, removal at higher temperatures increased by 10 % increments with increase in temperature by 5 °C over the range of 15 to 25 °C. Furthermore, soil column and batch experiments conducted under different redox conditions revealed higher DOC removal in aerobic (oxic) experiments compared to anoxic experiments. Aerobic soil columns exhibited DOC removal 15 % higher than that achieved in the anoxic columns, while aerobic batch showed DOC removal 7.8 % higher than the corresponding anoxic batch experiments. Ammonium-nitrogen removal greater than 99 % was observed at 20 and 25 °C, while 89.7 % was removed at 15 °C, but the removal substantially decreased to 8.8 % at 5 °C. While ammonium-nitrogen was attenuated by 99.9 % in aerobic batch reactors carried out at room temperature, anoxic experiments under similar conditions revealed 12.1 % ammonium-nitrogen reduction, corresponding to increase in nitrate-nitrogen and decrease in sulfate concentration. © Springer Science+Business Media B.V. 2012.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Publisher:
Springer Verlag
Journal:
Water, Air, and Soil Pollution
Issue Date:
22-Jul-2012
DOI:
10.1007/s11270-012-1272-8
Type:
Article
ISSN:
00496979
Sponsors:
This study was financially supported by UNESCO-IHE Partnership Research Fund (UPaRF) project No. 32019417 NATSYS. We are thankful to the UNESCO-IHE laboratory staff for their support in conducting experiments.
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAbel, Chol D Ten
dc.contributor.authorSharma, Saroj K.en
dc.contributor.authorMalolo, Yona N.en
dc.contributor.authorMaeng, Sungkyuen
dc.contributor.authorKennedy, Maria Doloresen
dc.contributor.authorAmy, Gary L.en
dc.date.accessioned2015-08-03T09:57:47Zen
dc.date.available2015-08-03T09:57:47Zen
dc.date.issued2012-07-22en
dc.identifier.issn00496979en
dc.identifier.doi10.1007/s11270-012-1272-8en
dc.identifier.urihttp://hdl.handle.net/10754/562244en
dc.description.abstractSoil aquifer treatment (SAT) is a costeffective natural wastewater treatment and reuse technology. It is an environmentally friendly technology that does not require chemical usage and is applicable to both developing and developed countries. However, the presence of organic matter, nutrients, and pathogens poses a major health threat to the population exposed to partially treated wastewater or reclaimed water through SAT. Laboratory-based soil column and batch experiments simulating SAT were conducted to examine the influence of temperature variation and oxidation-reduction (redox) conditions on removal of bulk organic matter, nutrients, and indicator microorganisms using primary effluent. While an average dissolved organic carbon (DOC) removal of 17.7 % was achieved in soil columns at 5 °C, removal at higher temperatures increased by 10 % increments with increase in temperature by 5 °C over the range of 15 to 25 °C. Furthermore, soil column and batch experiments conducted under different redox conditions revealed higher DOC removal in aerobic (oxic) experiments compared to anoxic experiments. Aerobic soil columns exhibited DOC removal 15 % higher than that achieved in the anoxic columns, while aerobic batch showed DOC removal 7.8 % higher than the corresponding anoxic batch experiments. Ammonium-nitrogen removal greater than 99 % was observed at 20 and 25 °C, while 89.7 % was removed at 15 °C, but the removal substantially decreased to 8.8 % at 5 °C. While ammonium-nitrogen was attenuated by 99.9 % in aerobic batch reactors carried out at room temperature, anoxic experiments under similar conditions revealed 12.1 % ammonium-nitrogen reduction, corresponding to increase in nitrate-nitrogen and decrease in sulfate concentration. © Springer Science+Business Media B.V. 2012.en
dc.description.sponsorshipThis study was financially supported by UNESCO-IHE Partnership Research Fund (UPaRF) project No. 32019417 NATSYS. We are thankful to the UNESCO-IHE laboratory staff for their support in conducting experiments.en
dc.publisherSpringer Verlagen
dc.subjectDissolved organic carbonen
dc.subjectNutrientsen
dc.subjectRedox conditionsen
dc.subjectSoil aquifer treatmenten
dc.subjectTemperatureen
dc.titleAttenuation of bulk organic matter, nutrients (N and P), and pathogen indicators during soil passage: Effect of temperature and redox conditions in simulated soil aquifer treatment (SAT)en
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalWater, Air, and Soil Pollutionen
dc.contributor.institutionUNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, Netherlandsen
dc.contributor.institutionSejong University, 98 Gunja-Dong, 5Gwangjin-Gu, Seoul 143-747, South Koreaen
dc.contributor.institutionDelft University of Technology, P.O. Box 5048, 2600 GA Delft, Netherlandsen
kaust.authorAmy, Gary L.en
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