Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 342358
Title Well clogging by particles in Dutch well fields
Author(s) Timmer, H.; Verdel, J.D.; Jongmans, A.G.
Source Journal American Water Works Association 95 (2003)8. - ISSN 0003-150X - p. 112 - 118.
Department(s) Land Dynamics
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) grondwaterwinning - blokkering - watervoerende lagen - putten - watervoorziening - nederland - groundwater extraction - blockage - aquifers - wells - water supply - netherlands
Categories Water Supply / Geohydrology, Soil Hydrology
Abstract For the water supply company Hydran South Holland in the Netherlands, clogged wells constituted a significant problem that lowered production capacity of the well field, disrupted the purification process at the treatment plant, and decreased overall revenues. This study was undertaken to develop a better understanding of the dogging process, the nature of the clogging materials, and the exact position of these materials in the well. The Hydron South Holland wells pump anaerobic groundwater from aquifers consisting of Pleistocene, sandy, and fluvial sediments, Samples were collected from a number of wells with a reduced specific capacity. Light microscopy and electron microscopy were performed on undisturbed samples, and particle size distribution and chemical analyses were conducted on bulk samples. On the basis of study results, a new two-pronged rehabilitation procedure was developed for seriously clogged wells. Initial findings indicate that the procedure offers both good immediate results and a significantly lower clogging rate over the long term. Hydron South Holland is conducting further research to prevent initial clogging and fine-tune well drilling techniques and well design. Utilities experiencing well clogging in similar aquifer conditions can use these findings to optimize their own rehabilitation procedures or as a jumping-off point for new research on well clogging and well design. - MPM.
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