Nurdini, Jihannuma Adibiah (2017) Studi Baku Mutu Buangan Air Panas ke Lingkungan Laut. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Air bahang yang merupakan limbah bekas proses pendinginan peralatan
PLTU menjadi masalah karena dibuang ke laut dalam keadaan yang masih bersuhu
tinggi. Sedangkan Pemerintah Indonesia telah menetapkan bahwa perubahan suhu
air laut (ΔT) yang diijinkan adalah maksimal < 2 0C dari suhu alami laut.
Tujuan penelitian ini adalah untuk memperkirakan potensi biaya kerugian
lingkungan melalui perhitungan manfaat yang hilang karena rusaknya terumbu
karang dan matinya ikan akibat tercemar buangan air panas PLTU dengan beberapa
variasi ΔT, untuk selanjutnya dilakukan perhitungan biaya teknologi pengolahan
buangan air panas berupa cooling tower dan cooling pond, yang dari kedua
perhitungan tersebut akan dihasilkan baku mutu suhu air laut dalam bentuk ΔT yang
sesuai untuk kondisi PLTU Paiton.
Langkah awal yang dilakukan adalah menentukan variasi ΔT berdasarkan
referensi data hasil pemantauan suhu dan hasil pemodelan. Dari variasi ΔT tersebut
kemudian diperkirakan biaya kerusakan terumbu karang melalui perhitungan
manfaat total yang hilang, sedangkan untuk kematian ikan menggunakan
pendekatan koefisien kematian ikan. Selanjutnya perhitungan biaya teknologi
pengolahan air bahang menggunakan referensi data dari Amerika Serikat tahun
1970 dan 1998. Dari kesemua hasil perhitungan kemudian diplot pada kurva untuk
mendapatkan nilai tengah suhu dan total biaya yang paling minimum.
Dapat disimpulkan bahwa pada T yang semakin tinggi maka biaya kerugian
lingkungan juga semakin tinggi, sebaliknya biaya pengolahan limbah semakin
turun. Penelitian ini berhasil menunjukkan prosedur untuk mencari perbedaan suhu
air laut di sekitar lokasi pembuangan air bahang dari suhu alami laut (ΔT) yang bisa
ditolerir baik oleh lingkungan maupun pihak pencemar. Adapun nilai tengah suhu
yang didapat akan sensitif menurut kasus per kasus.
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Warm water which is waste formerly cooling process of steam power plant
equipment become problem because discharged to sea in high temperature
condition. While the Government of Indonesia has determined that the permissible
sea water temperature (ΔT) change is a maximum of <2 0C from the sea's natural
temperature.
This study intends to estimate the potential of environmental losses cost
through the calculation of benefits lost due to coral reef damage and the death of
fish due to polluted hot water PLTU with some variation ΔT, the next step is the
calculation of technology costs of processing hot water waste in the form of cooling
tower and cooling pond. With both calculations will be produced quality standard
sea water temperature in appropriate ΔT for Paiton power plant condition.
The first step is to determine the variation of ΔT based on the data reference
of the temperature monitoring results and the modeling results. From the variation
ΔT is then estimated cost of coral reef damage through calculation of total benefits
lost, while for mortality of fish using coefficient approach mortality of fish.
Furthermore, the calculation of the cost of water treatment technology using
reference data from the United States in 1970 and 1998. From all the calculations
then plotted on the curve to get the middle value of the temperature and the
minimum total cost.
It can be concluded that on the higher T, the cost of environmental losses
is also higher, otherwise the cost of processing warm water waste is decreasing This
research has succeeded in showing the procedure to find the difference of sea water
temperature around the disposal site of cooling water from natural sea temperature
(ΔT) that can be tolerated by both environment and pollutant. The mean value of
the temperature obtained will be sensitive according to case by case.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RSKe 628.39 Nur s 3100013050929 |
| Uncontrolled Keywords: | cooling water, power plant, thermal pollution, sea temperature, seawater quality standard |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC812 Irrigation |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38101-(S2) Master Thesis |
| Depositing User: | Jihannuma - |
| Date Deposited: | 19 Feb 2018 03:17 |
| Last Modified: | 19 Apr 2020 02:27 |
| URI: | http://repository.its.ac.id/id/eprint/49188 |
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