Phosphorus adsorption/desorption processes of estuarine sediment: a case study — Loughor Estuary, UK

Al-Enezi, Eqbal, Bockelmann-Evans, Bettina ORCID: https://orcid.org/0000-0003-4208-9341 and Falconer, Roger Alexander ORCID: https://orcid.org/0000-0001-5960-2864 2016. Phosphorus adsorption/desorption processes of estuarine sediment: a case study — Loughor Estuary, UK. Arabian Journal of Geosciences 9 (3) , 200. 10.1007/s12517-015-2014-1

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Abstract

Phosphorus (P) plays an important role in the eutrophication of river and marine environments. The adsorption-desorption processes of P by estuarine sediment were studied to better understand the P behaviour in the Loughor Estuary in Carmarthen Bay, UK. Three types of models were used to estimate the P adsorption isotherm for five sediment samples from the Loughor Estuary. The Langmuir adsorption isotherm showed a good fit with the linear (data) isotherm. The P desorption from bed sediment was measured as the easy exchangeable P (MgCl2 extractable). A negative correlation was found between adsorbed P in bed sediment and median particle size. A positive correlation was also found between P adsorbed and metals such as iron (Fe), aluminium (Al) and calcium (Ca) as well as the total organic carbon (TOC).

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	Springer Verlag
ISSN:	1866-7511
Date of Acceptance:	6 November 2015
Last Modified:	01 Nov 2022 09:47
URI:	https://orca.cardiff.ac.uk/id/eprint/89249

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