Model of Total Suspended Solid (TSS) distribution due to coastal mining in Western Coast of Kundur Island part of Berhala Strait

3rd EMBRIO International Workshop on Marine Biodiversity: Understanding, Utilization, Conservation

生态环境科学

Nurjaya, I.W.^1 ; Surbakati, H.^1 ; Natih, N.M.N.^2

Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor, Indonesia^1

Marine Science Program, University of Sriwijaya, Indonesia^2

关键词: Berhala Strait;    Distribution models;    Distribution patterns;    Hydrodynamics modeling;    monsoon;    Oceanographic conditions;    suction vessels;    Total suspended solids;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/278/1/012056/pdf
DOI  :  10.1088/1755-1315/278/1/012056

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The Berhala Strait is located between the islands of Sumatra and Kundur Island with natural resources on the seabed in the form of lead. One of the state-owned mining companies is PT Tambang Timah that has the authorization to exploit lead on the west coast of Kundur Island. Typical oceanographic conditions of Total Suspended Solid (TSS) range from 35-37 mg/L, naturally large rivers that flow into the east coast of Sumatra contributed to the increase of TSS. Indications of the process can be seen from the range of surface salinity in these waters ranging from 25.5-28.0 psu. Mining activities at coastal waters have the high potential to increase turbidity in the water column. The scenario in this TSS distribution model is based on 2D-hydrodynamics model. The increase of TSS within the seawater is caused by the operation of dredgers (6 units) and suction vessels (11 units). TSS Model is built for two different monsoons, the northeast and southeast monsoons. Lead/metal mining activities in the west coast waters of Kundur Island cause an increasing TSS concentration up to 90-100 mg/L. TSS distribution patterns from mining activities will be explained simultaneously in 2 different monsoons.