Preventing two types of well clogging

Beek, Kees Van; Breedveld, Rob; Stuyfzand, Pieter J.

doi:10.1002/j.1551-8833.2009.tb09880.x

Cited by 27 publications

(17 citation statements)

References 7 publications

(4 reference statements)

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“…When groundwater is abstracted from unconsolidated sedimentary aquifers, two types of well clogging can be distinguished (van Beek 1984; Houben and Treskatis 2007; van Beek et al 2009a): screen slot or chemical clogging and wellbore or mechanical clogging. Screen slot clogging occurs if a single well abstracts both oxygen‐containing water and iron‐containing water.…”

Section: Introductionmentioning

confidence: 99%

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Prevention of Wellbore Clogging by Intermittent Abstraction

Beek¹,

Breedveld²,

Tas³

et al. 2010

Groundwater Monitoring Rem

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Section: Introductionmentioning

confidence: 99%

“…Upon mixing, iron hydroxide precipitates are formed, resulting in well clogging. This process has been described in greater detail elsewhere (van Beek et al 2009a). In the Netherlands this type of clogging is limited to (oxic) freatic aquifers.…”

Section: Introductionmentioning

confidence: 99%

Prevention of Wellbore Clogging by Intermittent Abstraction

Beek¹,

Breedveld²,

Tas³

et al. 2010

Groundwater Monitoring Rem

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“…Several elements are indicators of active clogging processes within GSHP systems. These processes can have a physical [14,15], microbiological [10,16,17] or chemical [18][19][20] source. However, in most cases clogging appears by a combination of more than one of those sources [21,22].…”

Section: Legendmentioning

confidence: 99%

“…The dynamic operation of a system has also an impact on water quality. For instance, at system startup, the particle load increases in the well [15] while stagnant conditions occurring during downtime phases promote oxygenation, that in turn favors microbial abundance and diversity in the well [26].…”

Section: Legendmentioning

confidence: 99%

Impact of Standing Column Well Operation on Carbonate Scaling

Cerclet¹,

Courcelles²,

Pasquier³

2020

Water

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Standing column well constitutes a recent promising solution to provide heating or cooling and to reduce greenhouse gases emissions in urban areas. Nevertheless, scaling issues can emerge in presence of carbonates and impact their efficiency. Even though a thermo-hydro-geochemical model demonstrated the impact of the water temperature on carbonate concentration, this conclusion has not been yet demonstrated by field investigations. To do so, an experimental ground source heat pump system connected to a standing column well was operated under various conditions to collect 50 groundwater samples over a period of 267 days. These field samples were used for mineral analysis and laboratory batch experiments. The results were analyzed with multivariate regression and geochemical simulations and confirmed a clear relationship between the calcium concentrations measured in the well, the temperature and the calcite equilibrium constant. It was also found that operating a ground source heat pump system in conjunction with a small groundwater treatment system allows reduction of calcium concentration in the well, while shutting down the system leads to a quite rapid increase at a level consistent with the regional calcium concentration. Although no major clogging or biofouling problem was observed after two years of operation, mineral scales made of carbonates precipitated on a flowmeter and hindered its operation. The paper provides insight on the impact of standing column well on groundwater quality and suggests some mitigation measures.

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“…일례로 환원 상태의 대수층에서 3가 철 수산화물 또 는 산화물의 환원 반응이 일어나면서 지하수 내의 용존 철의 농도가 증가하기도 한다 (Choi et al, 2007). 또한 강변 여과의 과정에서 산화 상태 지표 수의 대수층 내 주입에 따른 대수층 내의 물리화학 적인 조건, 특히 산화/환원 전위 조건의 급격한 변화 에 따라 환원 상태 지하수 내의 용존 철이 3가 형태 의 철산화물로 침전되어 관정의 막힘을 유발하는 것이 강변 여과 집수정의 유지 및 보수에 있어서 해 결해야하는 중요한 기술적 문제 중 하나이다 (van Beek, 1984;van Beek et al, 2009 …”

Section: 서 론unclassified

Iron Extraction Characteristics of Sediment Samples from a River Bank Filtration Site

현성필¹,

문희선²,

윤필선³

et al. 2013

Journal of the Mineralogical Society of Korea

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: River bank filtration has been considered as a promising alternative water management scheme, in which groundwater is extracted from an aquifer near a river after infiltration of the river water into the aquifer, thereby improving and maintaining the quality of water recovered. Iron (Fe) associated with sediment in contact with groundwater and infiltrating surface water is an important factor in determining the quality of water recovered from the pumping wells in river bank filtration. This study reports the results of Fe speciation in the aquifer sediment samples collected from different depths at the river bank filtration site in Changwon, studied using four different chemical extraction methods, namely, ferrozine, oxalate, HCl, and DCB methods. Overall, the results show that Fe(II) as well as the total Fe content decreases with depth down to ∼20 m and then increases further below. This trend is consistent with the redox characteristics suggested by visual observation. The silt/clay size fraction (ø < 62.5 µm) has up to 2∼10 times more Fe compared with the sand size fraction (62.5 µm < ø < 2 mm), depending on the extraction method. Of the four extraction methods, DCB solution

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Preventing two types of well clogging

Cited by 27 publications

References 7 publications

Prevention of Wellbore Clogging by Intermittent Abstraction

Prevention of Wellbore Clogging by Intermittent Abstraction

Impact of Standing Column Well Operation on Carbonate Scaling

Iron Extraction Characteristics of Sediment Samples from a River Bank Filtration Site

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