Removal of microorganisms by deep well injection

Schijven, Jack; Medema, Gertjan; Vogelaar, A.J.; Hassanizadeh, S. Majid

doi:10.1016/s0169-7722(00)00098-x

Cited by 90 publications

(53 citation statements)

References 31 publications

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“…Schijven et al [109] injected viruses and bacteria into a deep sandy aquifer in the Netherlands and observed breakthrough at four monitoring wells ranging from 8 to 38 m distant from the injection. Although one bacterium (E. coli) was observed only at the closest well, the second (spores of Clostridium bifermentans) was observed at all four wells.…”

Section: Previous Field-scale Bacterial Transport Experimentsmentioning

confidence: 99%

“…Several field investigations of virus transport in groundwater have been conducted at a number of sites (e.g., [6,27,28,109,127] and others previously mentioned), but are not reviewed here. A detailed review of viral transport models, processes, and parameters from field studies is provided by Schijven and Hassanizadeh [110].…”

Section: Previous Field-scale Bacterial Transport Experimentsmentioning

confidence: 99%

“…The apparent rate of attachment (as expressed in terms of the fitted collision efficiency parameter or attachment rate coefficient) has been observed to decrease with distance traveled in field studies using bacteria [29,51,109], protozoa [53], and viruses [109,127]. This appears to be the key factor limiting the direct application of laboratory core experiments to predict the extent of field-scale transport.…”

Section: Apparent Decrease In Alpha/k F With Distancementioning

confidence: 99%

“…This appears to be the key factor limiting the direct application of laboratory core experiments to predict the extent of field-scale transport. The phenomenon has occasionally been interpreted as reflecting in situ growth [51] or heterogeneity in aquifer properties [109,110]. Most often, however, it is interpreted as reflecting variability in the cell surface properties within a monoclonal bacterial population [1,12,29,110], which would cause the more ''sticky'' bacteria to attach rapidly at short travel distances while a smaller sub-population with less propensity for attachment transports much farther.…”

Section: Apparent Decrease In Alpha/k F With Distancementioning

confidence: 99%

See 3 more Smart Citations

Processes in microbial transport in the natural subsurface

Ginn

Wood

Nelson

et al. 2002

Advances in Water Resources

265

131

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Section: Previous Field-scale Bacterial Transport Experimentsmentioning

confidence: 99%

Section: Previous Field-scale Bacterial Transport Experimentsmentioning

confidence: 99%

Section: Apparent Decrease In Alpha/k F With Distancementioning

confidence: 99%

Section: Apparent Decrease In Alpha/k F With Distancementioning

confidence: 99%

See 2 more Smart Citations

Processes in microbial transport in the natural subsurface

Ginn

Wood

Nelson

et al. 2002

Advances in Water Resources

265

131

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“…Recycled water is not used at Finnish MAR plants. The MAR process removes pathogens efficiently, both bacteria and viruses [29][30][31][32][33][34][35][36][37][38][39]. Risks of contamination of the recharge process are reduced by the choice of good quality raw waters and protection of the recharge areas from external, possibly harmful activities (such as gravel extraction or handling of petroleum).…”

Section: Discussionmentioning

confidence: 99%

Raw Water Quality and Pretreatment in Managed Aquifer Recharge for Drinking Water Production in Finland

Jokela¹,

Eskola

Heinonen³

et al. 2017

Water

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Abstract:The main objective of managed aquifer recharge (MAR) in Finland is the removal of natural organic matter (NOM) from surface waters. A typical MAR procedure consists of the infiltration of surface water into a Quaternary glaciofluvial esker with subsequent withdrawal of the MAR treated water from wells a few hundred meters downstream. The infiltrated water should have a residence time of at least approximately one month before withdrawal to provide sufficient time for the subsurface processes needed to break down or remove humic substances. Most of the Finnish MAR plants do not have pretreatment and raw water is infiltrated directly into the soil. The objectives of this paper are to present MAR experiences and to discuss the need for and choice of pretreatment. Data from basin, sprinkling, and well infiltration processes are presented. Total organic carbon (TOC) concentrations of the raw waters presented here varied from 6.5 to 11 mg/L and after MAR the TOC concentrations of the abstracted waters were approximately 2 mg/L. The overall reduction of organic matter in the treatment (with or without pretreatment) was 70%-85%. Mechanical pretreatment can be used for clogging prevention. Turbidity of the Finnish lakes used as raw water does not necessitate pretreatment in basin and sprinkling infiltration, however, pretreatment in well infiltration needs to be judged separately. River waters may have high turbidity requiring pretreatment. Biodegradation of NOM in the saturated groundwater zone consumes dissolved oxygen. Thus, a high NOM concentration may create conditions for dissolution of iron and manganese from the soil. These conditions may be avoided by the addition of chemical pretreatment. Raw waters with TOC content up to at least approximately 8 mg/L were infiltrated without any considerations of chemical pretreatment, which should be evaluated based on local conditions.

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Microbial Transport in the Subsurface

Ginn

Camesano

Scheibe

et al. 2005

Encyclopedia of Hydrological Sciences

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We review the processes involved in the transport of bacteria in the saturated subsurface. Our goal is to communicate priority topics in the basic science of bacterial transport processes, and this leads to a focus on the nanometer to micron scales of observation. The scope of this review is the set of physical, chemical, and biological processes involved in the transport of individual cells, and the constitutive theory underlying conceptual depiction of these processes.

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Removal of microorganisms by deep well injection

Cited by 90 publications

References 31 publications

Processes in microbial transport in the natural subsurface

Processes in microbial transport in the natural subsurface

Raw Water Quality and Pretreatment in Managed Aquifer Recharge for Drinking Water Production in Finland

Microbial Transport in the Subsurface

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