Site Evaluation Studies of the Massachusetts Bay Disposal Site for Ocean Disposal of Dredged Material

1988 ◽  
Author(s):  
William A. Hubbard ◽  
J. M. Penko ◽  
Terrence S. Fleming
Keyword(s):  
Evaluation Studies ◽  
Disposal Site ◽  
Dredged Material ◽  
Massachusetts Bay ◽  
Site Evaluation ◽  
Ocean Disposal

scholarly journals Determining the maximum sediment dispersion in an ocean disposal site for dredged material in Buenaventura, Colombia

2020 ◽  
Vol 9 (4) ◽  
pp. 900
Author(s):  
Leydis Villadiego Rojas ◽  
Ricardo Daza González ◽  
Bladimir Salcedo Castilla
Keyword(s):  
Particle Tracking ◽  
Disposal Site ◽  
Dredged Material ◽  
Hydrodynamic Conditions ◽  
Sediment Particle ◽  
Maximum Displacement ◽  
Particle Tracking Model ◽  
Approach Channel ◽  
Tracking Model ◽  
Ocean Disposal

This paper presents an analysis of the affected area at an ocean disposal site, in terms of sediment dispersion, as a consequence of the dis-posal of dredged material from the approach channel for Buenaventura´s Port. The analysis was carried out at three points within Buenaven-tura´s Bay, one located at the authorized disposal site, a second point at a proposed future disposal site and a third point at the Bocana Sector, where the highest tidal velocities are identified. The PTM (Particle Tracking Model) mathematical model was used for this investigation, showing that due to the hydrodynamic conditions, a sediment particle can reach a longer dispersion distance from its original disposal point. Finally, sediment dispersion at the three analysis points were compared in terms of current velocity and maximum displacement.

Emissions of porewater compounds and gases from the subaquatic sediment disposal site “rodewischhafen”, hamburg harbour

1998 ◽  
Vol 37 (6-7) ◽  
pp. 87-93 ◽  
Author(s):  
M. Kussmaul ◽  
A. Groengroeft ◽  
H. Koethe
Keyword(s):  
Water Surface ◽  
Disposal Site ◽  
Dredged Material ◽  
Water Fluxes ◽  
Gas Emissions ◽  
Fine Grained ◽  
Deposit Surface ◽  
Groundwater Samples ◽  
High Concentrations ◽  
Mud Deposit

In the year 1993 a confined and unused harbour basin was used to store 290,000 m3 of fine-grained dredged material from Hamburg harbour. About 70% of the deposit surface was water covered. The edge areas were above the water table and covered with reed. Emissions of dissolved compounds into the groundwater, as well as surface gas emissions were measured from 1994 to 1996. As indicators for water fluxes from the deposit we used NH4+ and HCO3− because of their high concentrations in mud porewater in comparison to groundwater. The average concentrations of NH4+ and HCO3− in the porewater increased during 2 years from 85 to 250 mg NH4+ 1−1 and from 2.0 to 3.1 g HCO3− 1−1, while the groundwater samples showed constant values of 8 mg NH4+ 1−1 and 0.7 g HCO3− 1−1. Furthermore, the average gas emissions over the water surface were 3.2 g CH4 m−2 d−1 and 0.8 g CO2 m−2 d−1. In contrast, no methane and 3.0 g CO2 m−2 d−1 were emitted from land areas. The results indicated, that there were no significant emissions of mud porewater compounds into the groundwater but high CH4-emissions over the water covered surface of the mud deposit.

Chapter 15: ENVIRONMENTAL MONITORING OF NEARSHORE DREDGED MATERIAL OCEAN DISPOSAL SITES

2014 ◽  
pp. 887-947
Author(s):  
Kok-Leng Tay ◽  
Russell Parrott ◽  
Ken Doe ◽  
Adrian MacDonald ◽  
Yung-Tse Hung
Keyword(s):  
Environmental Monitoring ◽  
Dredged Material ◽  
Ocean Disposal

Metal distributions in the Kaohsiung Ocean dredged material disposal site, Taiwan

2017 ◽  
pp. 366-374 ◽  
Author(s):  
Chih-Feng Chen ◽  
Yun-Ru Ju ◽  
Chiu-Wen Chen ◽  
Yi-Kuo Chang ◽  
Cheng-Di Dong
Keyword(s):  
Disposal Site ◽  
Dredged Material ◽  
Dredged Material Disposal
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