Update Artikelilmiah: 9260

TIKA ASTRITIA

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Abstrak (Bhs. Indonesia)

Pendangkalan akibat sedimentasi menjadi salah satu permasalahan yang terjadi di Pelabuhan Pendaratan Ikan (PPI) Logending. Hal ini tidak lepas dari pengaruh kondisi sungai yang masuk ke Pelabuhan Pendaratan Ikan (PPI) Logending. Sungai Ijo merupakan sungai yang bermuara di Pelabuhan Pendaratan Ikan (PPI) Logending. Tujuan penelitian ini adalah untuk menganalisis debit sedimen layang (Suspended Load) di Sungai Ijo yang masuk ke Pelabuhan Pendaratan Ikan (PPI) Logending.

Pada penelitian ini dilakukan pengukuran langsung di muara sungai untuk mendapatkan data morfologi sungai dan sampel sedimen suspended load. Sampel sedimen kemudian diperiksa di laboratorium untuk mendapatkan konsentrasi sedimen dan berat jenis sedimen. Data-data yang telah diperoleh selanjutnya di analisis menggunakan metode USBR, rumus debit sedimen suspended load dan persamaan Rouse.

Analisis debit sedimen suspended load di muara Sungai Ijo diperoleh hasil : untuk metode USBR diperoleh debit sedimen suspended load Qs-T1= 0,469 ton/hari, Qs-T2 = 0,781 ton/hari, Qs-T3 = 0,330 ton/hari. Untuk rumus debit sedimen suspended load diperoleh debit sedimen suspended load Qs-T1 = 0,126 g/s, Qs-T2 = 53,820 g/s, Qs-T3 = 51,219 g/s. Sedangkan untuk persamaan Rouse didapatkan konsentrasi sedimen suspended load yang bervariasi pada setiap kedalaman tertentu, pada persamaan Rouse menunjukkan bahwa semakin dalam tampang sungai maka nilai konsentrasi sedimen suspended load semakin kecil.

Abtrak (Bhs. Inggris)

Siltation due to sedimentation become one of the issues raised in the Fish Landing Ports (PPI) Logending. It is not free from the influence of the condition of the river that enters Fish Landing Ports (PPI) Logending. Ijo River is a river that empties into Fish Landing Ports (PPI) Logending. The purpose of this study is to analyze the sediment discharge (Suspended Load) in Ijo River that enters Fish Landing Ports (PPI) Logending.

In this study measurement is carried out directly at the mouth of the river to get the data stream morphology and sediment samples suspended load. Sediment samples were then examined in a laboratory to obtain sediment concentration and sediment density. The data have been obtained in the subsequent analysis using USBR, suspended sediment load discharge formulas and  Rouse equation.

From the analysis of the load of suspended sediment discharge at the mouth of the river Ijo obtained results : USBR method obtained for suspended load sediment discharge Qs-T1 = 0.469 tons/day, Qs-T2 = 0.781 tons/day,  Qs-T3 = 0.330 tons/day. For suspended sediment load discharge formulas derived suspended sediment discharge Qs-T1 = 0.126 g/s, Qs-T2 = 53,820 g/s, Qs-T3 = 51,219 g/s. As for the Rouse equation of suspended sediment concentration obtained varying load at any given depth, the Rouse equation shows that the more the look of river suspended sediment concentration values smaller load.

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