Studi Pemodelan Kualitas Air Di Pesisir Timur Sidoarjo Akibat Masuknya Air Lumpar Porong Melalui Perpipaan Ke Laut

Ridasmika, Ridasmika (2007) Studi Pemodelan Kualitas Air Di Pesisir Timur Sidoarjo Akibat Masuknya Air Lumpar Porong Melalui Perpipaan Ke Laut. Other thesis, Institut Teknologi Sepuluh November.

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Abstract

Lumpur Porong tidak langsung dibuang karena mengandung banyak polutan. Maka, lumpur ini ditreatment dan air lumpur hasil treatment yang dibuang. Pada awalnya air lumpur akan dibuang langsung ke laut melalui perpipaan. Namun, hal ini tidak jadi dilaksanakan karena kekhawatiran mencemari laut secara langsung dan belum ada studi yang membahas tentang kualitas air di daerah pesisir Timur Sidoarjo jika air lumpur dibuang ke laut melalui perpipaan ke laut. Maka akan diadakan studi pemodelan kualitas air di Pesisir Timur Sidoarjo akibat masuknya air lumpur Porong melalui perpipaan ke laut. Penelitian ini bertujuan untuk mengetahui pola penyebaran polutan konservatif dan kualitas air air di pesisir Timur Sidoarjo jika air lumpur dialirkan melalui saluran pembuangan (pipa) ke laut. Pemodelan ini menggunakan software SMS (Surface Water Modelling System) dengan modul RMA 2 untuk memodelkan arus dan modul RMA 4 untuk memodelkan polutan. Pemodelan polutan dibuat 3 model dengan posisi pembuangan air lumpur (pipa) yang berbeda. Parameter polutan yang dipakai yaitu polutan konservatif dengan mengambil logam Pb dan Hg. Polutan lainnya yang dimodelkan yaitu minyak. Untuk mengetahui tingkat pencemaran hasil pemodelan polutan tersebut akan dibandingkan dengan baku mutu air laut menurut Kepmen LH No. 51 Tahun 2004. Berdasarkan hasil pemodelan, pola penyebaran polutan menunjukkan kenaikan konsentrasi secara logaritmik dengan model 3 (posisi pipa di tengah perairan) sebagai model dengan penyebaran konsentrasi terkecil pada setiap jam. Berdasarkan hasil analisa, kualitas air di Pesisir Timur Sidoarjo diluar ambang batas untuk parameter logam Pb (tercemar logam Pb) minimum di jam ke 30 pada model 2 (posisi pipa di 3 titik pada muara Sungai Porong) dan maksimum di jam ke 57 pada model 3 (posisi pipa di tengah perairan), dan diluar ambang batas untuk parameter logam Hg (tercemar logam Hg) minimum di jam ke 240 pada model 2 dan maksimum di jam ke 1968 pada model 3 jika pembuangan air lumpur dilakukan secara kontinu dengan debit 10 m3/s.
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Porong's mud are contain many pollutant, so it can not thrown to ocean immediately. The water treatment must be taken for the mud to control the pollutant in it which the result is mud water that free from pollutant. This mud water will be throwing to Madura strait. At the beginning, there is plan to thrown mud water straight to ocean. But it can not be done, because there are many side that concerned about the impact for the environtmental. While the assessment or report about the water quality in east coast of Sidoarjo if the mud water thrown straight to ocean using pipeline have not done yet. This final report will figure out about the water quality in East Coast of Sidoarjo if the mud water thrown to ocean using pipeline. This research purpose is to find out about the spreading model of conservative pollutant and how the impact to water quality in East Coast of Sidoarjo. This modelling study using SMS software with RMA2 module for current model and RMA4 module for pollutant spreading model. Modelling of pollutant made in 3 model with different position of ocean pipeline. The pollutant parameter which in use is conservative pollutant using Pb and Hg metal. The other pollutant which also use is oil. The conclusion will obtain by comparing the result of pollutant model with KEP MEN LH No. 51 Th. 2004 about quality standard of sea water. The modelling result of pollutant spreading analysis is the pollutant spreading model shows that the concentration increase by logarithmic with model 3 (which position of pipeline is on the middle of ocean) as the model of smallest concentration spreading in every hours. From the modelling analysis, the water quality of East Coast of Sidoarjo are out of quality standard (Pb metal) minimum after 30 hours mud water thrown to ocean on the model 2 (which position of the pipeline is on the 3 points of Porong river estuary) and maximum after 57 hours on the model 3. For Hg metal parameter, the water quality of East Coast of Sidoarjo are out of standard minimum after 240 hours on the model 2 and maximum after 1968 hours mud water thrown to ocean on the model 3 if mud water thrown continue to the ocean with 10 m3/s flowrate.

Item Type:	Thesis (Other)
Additional Information:	RSKe 628.168 Rid s
Uncontrolled Keywords:	kualitas air, polutan konservatif, minyak, pipa, pesisir Timur Sidoarjo, water quality, conservative pollutant, oil, pipeline, East Coast of Sidoarjo
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD420 Water pollution
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	07 Oct 2026 04:01
Last Modified:	07 Oct 2026 04:01
URI:	http://repository.its.ac.id/id/eprint/145382

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