This paper evaluates the bioavailability of As, Cd, Cu, Mn, Hg, Ni and Zn in the coastal waters of the two most important bays in southern Spain (Cádiz and Algeciras). Concentrations of these metals were measured in the bodies of Balanus amphitrite barnacles in 2005 and 2006. Seawater samples were collected from the same sites as the barnacles...
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June 15, 2022 (v1)PublicationUploaded on: March 25, 2023
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June 17, 2022 (v1)Publication
A complete study was carried out on metal pollution in Tinto River sediments. In the course of the study, samples were taken at 13 sites along the river and its most important tributaries, and at 4 sites in the estuary.
Uploaded on: March 25, 2023 -
October 7, 2024 (v1)Publication
A new integrated sediment quality assessment method composed of several assays (particle size profile, total metal content, protease K extraction, total organic carbon, toxicity bioassay with Photobacterium phosphoreum and macrobenthic community alteration) that provides a single result, the environmental degradation index (EDI), has been...
Uploaded on: October 8, 2024 -
October 7, 2024 (v1)Publication
The bioavailable fraction of metals (Zn, Cu, Cd, Mn, Pb, Ni, Fe, and Cr) in sediments of the Huelva estuary and its littoral of influence has been estimated carrying out the most popular methods of sequential extraction (BCR and Tessier) and a biomimetic approach (protease K extraction). Results were compared to enrichment factors found in...
Uploaded on: October 8, 2024 -
October 7, 2024 (v1)Publication
Relationship between toxicity and bioavailable metals in sediments from the Huelva estuary and its littoral of influence was analyzed. Toxicity was assessed with Microtox® bioassay using a marine luminescent bacterium: Vibrio fischeri. Bioavailable metals were considered as both, acid extractable fraction of BCR procedure and the sum of...
Uploaded on: October 8, 2024 -
October 7, 2024 (v1)Publication
This research applies an integrated sediment quality assessment method using a weight of evidence approach to Cadiz and Algeciras Bays (southern Spain). The method is composed of several analyses (particle size profile, aqua regia extractable metals, acid labile metals, total organic carbon, toxicity bioassay with Photobacterium phosphoreum and...
Uploaded on: October 8, 2024 -
June 15, 2022 (v1)Publication
The use of pesticides presents a risk to terrestrial and aquatic ecosystems. For this reason, the development of strategies to prevent and restore pollution is of the greatest interest, including the adsorption to organic matter. The aim of the present study was to investigate the sorption/desorption and kinetics of atrazine, chlorfenvinphos,...
Uploaded on: March 25, 2023 -
January 23, 2024 (v1)Publication
This study evaluates the effect of anthropogenic activities on the quality of groundwater beneath a rural area (R'mel area) located in the perimeter of Loukkos, Northwest Morocco. Ten public wells for drinking water were sampled and characterized for physicochemical parameters, heavy metals and pesticides occurrence. Multivariate Statistical...
Uploaded on: January 26, 2024 -
May 10, 2023 (v1)Publication
The objective of this research is to investigate Fenton reaction, permanganate and persulfate oxidation as in-situ remediation technology for the treatment of gasoline-diesel contaminated soil. These oxidants were compared in various soils to study the influence of soil texture and soil organic matter. The different fractions of hydrocarbons,...
Uploaded on: May 11, 2023 -
September 22, 2021 (v1)Publication
The present study determined the most effective surfactants to remediate gasoline and diesel-contaminated soil integrating information from soil texture and soil organic matter. Different ranges for aliphatic and aromatic hydrocarbons (> C6–C8, > C8–C10, > C10–C12, > C12–C16, > C16–C21, and > C21–C35) in gasoline and diesel fuel were analyzed....
Uploaded on: March 25, 2023 -
October 7, 2024 (v1)Publication
This study evaluated the possibility of recovering lithium from brines by ion-exchange procedures. Three commercial ion-exchange resins were studied: K2629, TP207 and TP208. Different tests have been carried out with artificial solutions and real brines. In addition, tests were carried out for Li elution, regeneration of the resins and reuse of...
Uploaded on: October 8, 2024 -
August 22, 2019 (v1)Publication
This work brings an evaluation of the quality of littoral zone of Algerian in two neighbouring port coasts, namely, Honaine and Beni Saf, chosen as significant discharge sites. This was followed by a comparison of the state of these coasts with those of the Mediterranean coastal areas. The study was conducted in all seasons in the year...
Uploaded on: December 4, 2022 -
June 15, 2022 (v1)Publication
Editorial
Uploaded on: March 25, 2023 -
October 7, 2024 (v1)Publication
In recent years, reverse osmosis (RO) has grown as an alternative to traditional potable water sources. A major disadvantage of the RO process is the huge amount of brine and its negative impact as a result of its high salinity. This brine is usually discharged to inland water bodies or to the sea and constitutes a threat to ecosystems and...
Uploaded on: October 8, 2024 -
August 30, 2023 (v1)Publication
The accreditation of engineering programmes is a subject of great interest in the last decades. However, most studies in the literature are focused on case studies or deal with the different levels of acceptance of the groups involved in the accreditation. There are two main approaches for the accreditation of engineering programmes, i. e., at...
Uploaded on: October 11, 2023 -
January 3, 2024 (v1)Publication
Mediterranean countries experience a large production of olive oil, thus generating huge quantities of non-biodegradable vegetation waters. The discharge of these effluents into aquatic environments seriously affects the quality of surface waters. This study investigated the potential use of carbon steel slag (SS) as an adsorbent and improver...
Uploaded on: January 5, 2024