A new technique to reduce internal phosphorus loading by in-lake phosphate fixation in shallow lakes |
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| Authors: | Marinus Quaak Joop van der Does Paul Boers Jo van der Vlugt |
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| Affiliation: | (1) HAM International Dredging Contractors, P.O. Box 8574, 3009 AN Rotterdam, The Netherlands;(2) Waterboard of Rijnland, P.O. Box 156, 2300 AD Leiden, The Netherlands;(3) Institute for Inland Water Management and Waste Water Treatment, P.O. Box 17, 8200 AA Lelystad, The Netherlands;(4) National Institute of Public Health and Environmental Protection, P.O. Box 1, 3720 BA Bilthoven, The Netherlands |
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| Abstract: | A new, flexible, fast, robust and economic technique was developed to treat sediment in shallow lakes with phosphate binding chemicals. The upper 0.15 m of the sediment is thoroughly mixed with ferric chloride using a water-jet manifold coupled to a dosing pump and a navigation control system. Its logistics were tried out in a small, shallow and hypertrophic peat lake, Lake Groot Vogelenzang. |
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| Keywords: | lake restoration eutrophication phosphates iron-dosing lake-bottom treatment water-jet |
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