Removal of geosmin and 2-methylisoborneol during managed aquifer recharge: Batch and column studies

Sungkyu Maeng, Chol D T Abel, Saroj K. Sharma, Nosuk Park, Gary L. Amy

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Managed aquifer recharge is a robust barrier in the multi-barrier approach to supply safe drinking water. The removal performance of gesomin and 2-methylisoborneol through managed aquifer recharge was investigated using batch and column experiments. Batch experiments were carried out to investigate the removal of geosmin and 2-methylisoborneol (MIB) in the presence of different types of biodegradable organic matter using different types of water. Five different types of water spiked with 70-293 ng/L of geosmin and MIB were used in batch reactors, and complete removal of geosmin and MIB (down to the detection limit) was achieved in all cases. Soil column studies showed that biodegradation contributed to the removal of geosmin and MIB by 23 and 31%, respectively (empty bed contact time: 17 hours). The removal of geosmin and MIB appeared to be influenced more by microbial activity than the initial concentrations of geosmin and MIB. Adsorption was found to be the dominant mechanism (major role) followed by biodegradation (minor role) for geosmin and MIB removals during soil passage. Managed aquifer charge can therefore be used as a robust barrier to remove taste and odor (T&O) causing compounds.© IWA Publishing 2012.
Original languageEnglish (US)
Pages (from-to)220-227
Number of pages8
JournalJournal of Water Supply: Research and Technology—AQUA
Volume61
Issue number4
DOIs
StatePublished - Jun 2012

ASJC Scopus subject areas

  • Water Science and Technology
  • Civil and Structural Engineering

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