![]() ![]() Open ocean disposal affects the marine ecosystem, and However, environmental and legal reasons constrain these sediment management ![]() ![]() ![]() The extracted sediments are classically regarded as wasteĪnd either landfilled or disposed of in open oceans (Ali et al., 2014). Therefore, millions of tons ofĭredged sediments are generated around the world (Mymrin et al., 2017).Įurope alone produces 200×10 6 m 3 of sediments per year Ports, lakes and semi-enclosed water bodies require continuous dredging ofīottom sediments to guarantee proper navigation levels and preserving theĪquatic ecosystem (DelValls et al., 2004). Ornamental gardens or vegetation beside roads). Lands such as in industrial and commercial areas where the sediments can beĮmployed as construction material or as plant-growing substrate (for TheĬharacterization of the sediments displays a potential use in less sensitive Of organic pollutants and low–medium concentration of metals or metalloids. Additionally, the sediments had little presence Particle material (silt, clay and sand proportions of 62 %–79 %, 14 %–20 %, 7 %–17 %, respectively) and had a medium–high level of nitrogen The sediments mainly comprised small size High amounts of nitrogen (170–450 µg L −1), leading toĮutrophication problems. Uncover possible sediment recovery paths and define the baseline ofĬontamination in the water body. This study focuses onĬharacterizing the sediments, pore water and surface water from the bay to Is required to recuperate the water level. Shallow semi-enclosed bay located in Kalmar, Sweden. Therefore, the first step is to analyseĪnd identify the sediment composition and properties. Nevertheless, the recovery varies on a case-by-case basis andĭepends on the sediment components. Recovery of valuables represents a way to eliminate dumpingĪnd contributes towards the sustainable extraction of secondary raw Theseĭisposal methods are not in line with circular-economy goals andĪdditionally are unsuitable due to their legal and environmentalĬompatibility. Removed material is commonly disposed of in open oceans or landfills. Guarantee the navigation levels or remediate the aquatic ecosystem. Ports and bays need to extract the sediments to Millions of tons of bottom sediments are dredged annuallyĪll over the world. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |