One of the fundamental tasks in maintenance port operations is periodic dredging. These dredging facilitate elimination sediments that coastal dynamics introduce. Dredging are increasingly restrictive and costly due to environmental requirements. Understanding condition seabed before after essential. In addition, determining how has behaved recent years important consider when planning future o...

background: persian gulf is a semi-closed environment which is affected by pollution ‎from heavy metals. entrance of heavy metals to the water column and binding to ‎sediment particles can affect the benthic organisms that can accumulate these ‎materials in their body. noticing this ability, mussels are considered as bio-monitoring ‎agents.‎ methods: the pearl oyster, pinctada radiate, and sedi...

The recent Diplomatic Conference held (1-5 October 2001) by the International Maritime Organization (IMO) in London adopted the Draft Convention prepared by The Marine Environmental Protection Committee (MEPC) of IMO for the "Control of Harmful Anti-fouling Systems for Ships." The convention has been developed to immediately ban the use of Tributyltin (TBT) globally in anti-fouling paints to "p...

We investigated how environmental factors initiate Heterosigma akashiwo and Skeletonema costatum blooms from resting stages in bottom sediments in a shallow port over 2 yr. Using field-collected sediments, we also conducted laboratory experiments on how light intensity affects germination of resting stages and growth of the germinated cells. Both phytoplankton species bloomed only in summer, wh...

The long-term status of petroleum hydrocarbons in both seawater and sediment contaminated by the Dalian New Port oil spill has been investigated since 2010. Seawater recovery is relatively swift complete within two years, while contamination persists coastal sediments for several years. Because slow degradation low mobility sediments, they serve as reservoirs residual oils. erosion into water c...

A confined disposal facility (CDF) was built at the Ancona Harbour (Italy) to host contaminated dredged sediments. The Port Authority intended get chance use reclaimed land as a storage area. Since sediments typically have very high void ratios when disposed in CDF, their consolidation is essential achieve proper mechanical characteristics. Consolidation of by prefabricated vertical drains (PVD...

Abstract The present study focused on the siltation process at navigation channel in Port of Niigata, Japan. A part port is located mouth Shinano River, which longest one country. Due to discharged sediments through river and their deposition area, frequent dredging works are required for safety navigations waterway turning basins. purpose get a better understanding specific features sedimentar...

This study investigated the concentrations of monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT) in sediments Qianzhen Fishing Port (Taiwan) 2020. Further, pollution status, composition, potential ecotoxicity BTs were evaluated. case provides a reference for benefits ban TBT-based antifouling paint to date. Results showed that total butyltin (?BTs, sum TBT, DBT, MBT) measured ranged bet...

The International Maritime Organization (IMO) developed and adopted the “International Convention for Control Management of Ships' Ballast Water Sediments” (Ballast or BWM Convention) in February 2004 to prevent uptake discharge invasive alien species harmful aquatic organisms pathogens within ballast water sediments [5]. entered into force on 08th September 2017. In 2020, 85 countries have rat...