Anggraini, Farida Novita (2021) Kajian Risiko Kinerja IPAM Karangpilang I Kota Surabaya Dengan Metode Fault Tree Analysis (FTA). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Instalasi Pengolahan Air Minum (IPAM) Karangpilang I merupakan salah satu dari enam instalasi pengolahan air yang dimiliki PDAM Kota Surabaya. Sumber air baku IPAM Karangpilang I Kota Surabaya yaitu berasal dari Kali Surabaya. Peningkatan jumlah penduduk menyebabkan meningkatnya aktivitas masyarakat yang menjadi penyebab utama sumber air baku tercemar. Sehingga air baku yang digunakan oleh IPAM Karangpilang I Surabaya sering tidak memenuhi standar baku mutu air kelas I PP No.22 tahun 2021. Selain itu, peningkatan jumlah penduduk juga menyebabkan meningkatnya berbagai kebutuhan, salah satunya kebutuhan air bersih yang mendorong kapasitas IPAM Karangpilang I yang semula 1000 L/dt meningkat menjadi 1450 L/dt. Ketidaksesuaian air baku yang dapat mengakibatkan penurunan kualitas air serta bertambahnya kapasitas air yang diproduksi dapat menyebabkan penurunan kinerja IPAM Karangpilang I. Sehingga diperlukan kajian terhadap risiko kinerja IPAM Karangpilang I Kota Surabaya dengan metode Fault Tree Analysis (FTA).
Kajian penelitian ini menggunakan metode Fault Tree Analysis (FTA). Metode Fault Tree Analysis (FTA) merupakan analisis yang digunakan untuk menentukan akar penyebab potensi kegagalan yang terjadi dalam sistem sehingga dapat dilakukan upaya untuk mengurangi produk cacat tersebut. Dalam metode Fault Tree Analysis (FTA) memiliki dua tahapan analisis, yaitu tahap analisis kualitatif dan tahap analisis kuantitatif. Pada analisis kualitatif didapatkan faktor risiko dari penurunan kinerja IPAM Karangpilang I berupa faktor risiko air baku, proses dan injeksi bahan kimia. Sedangkan analisis kuantitatif dilakukan dengan melakukan perhitungan consequence, likelihood yang menunjukkan bahwa terdapat kategori risiko pada penurunan kinerja IPAM Karangpilang I.
Adapun kesimpulan pada kajian ini, yaitu kinerja IPAM Karangpilang I mengalami ketidaksesuaian efisiensi kekeruhan pada setiap unit, kualitas air produksi telah memenuhi ketentuan dalam Peraturan Menteri Kesehatan Nomor 492 Tahun 2010 pada parameter TDS, Kekeruhan, total coliform, dan pH. Namun parameter sisa klor masih belum memenuhi ketentuan dalam Peraturan Menteri Kesehatan RI Nomor 736 Tahun 2010. Selain itu, besaran risiko pada kinerja IPAM Karangpilang I yaitu, severe pada sub faktor clarifier, high pada sub faktor kualitas, dosis pembubuhan dan bahan kimia, major pada sub faktor prasedimentasi, filter, dan desinfeksi, trivial pada sub faktor kuantitas dan injektor. Nilai besaran risiko terbesar terjadi pada sub faktor clarifier, kategori risiko severe dengan nilai probabilitas sebesar 0,23 atau 23%. Penentuan mitigasi untuk mengurangi penurunan kinerja IPAM Karangpilang I dilakukan pada 9 subfaktor yang sesuai dengan kategori severe, yaitu Nre, Nfr, WLR, waktu detensi, tube settler, actuator, solenoid, pompa submersible dan water level control.
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Karangpilang I Drinking Water Treatment Plant (IPAM) is one of six water treatment plants owned by PDAM Surabaya. Ipam Karangpilang I Raw Water Source surabaya city that comes from Kali Surabaya. The increase in population led to increased community activity which is the main cause of polluted raw water sources. So, the raw water used by IPAM Karangpilang I Surabaya often does not meet the standard of water quality class I PP No.22 year 2021. In addition, the increase in population also led to an increase in various needs, one of which is the need for clean water that boosts the ipam capacity of Karangpilang I which was originally 1000 L/dt increased to 1450 L/dt. Incompatibility of raw water that can result in a decrease in water quality and increased capacity of water produced can lead to a decrease in the performance of IPAM Karangpilang I. So, it is necessary to study the performance risk of IPAM Karangpilang I Surabaya with Fault Tree Analysis (FTA) method.
This study uses Fault Tree Analysis (FTA) method. Fault Tree Analysis (FTA) method is an analysis used to determine the root cause of potential failures that occur in the system so that efforts can be made to reduce the defective product. In fault tree analysis (FTA) method has two stages of analysis, namely qualitative analysis stage and quantitative analysis stage. In qualitative analysis, risk factors from the decrease in ipam performance of Karangpilang I in the form of raw water risk factors, processes and injection of chemicals. While quantitative analysis is done by doing consequence calculations, likelihood that shows that there is a risk category in the decrease in ipam performance of Karangpilang I.
As for the conclusion in this study, namely the performance of IPAM Karangpilang I experienced a mismatch of turbidity efficiency in each unit, the quality of production water has met the provisions in Regulation of the Minister of Health No. 492 of 2010 on the parameters of TDS, Turbidity, total coliform, and pH. However, the remaining parameters of clenbuterol still do not meet the provisions in the Regulation of the Minister of Health of the Republic of Indonesia Number 736 of 2010. In addition, the amount of risk to the performance of IPAM Karangpilang I namely, severe on clarifier sub factors, high on quality sub factors, dosage of the plant and chemicals, major in sub-factors of pre-distribution, filter, and disinfection, trivial on the quantity sub-factor and injector. The largest risk magnitude value occurs in clarifier sub-factors, severe risk categories with a probability value of 0.23 or 23%. Mitigation determination to reduce the decrease in IPAM performance of Karangpilang I was carried out on 9 subfactors that fit the severe category, namely Nre, Nfr, WLR, tension time, settler tube, actuator, solenoid, submersible pump and water level control.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Air Baku, Fault Tree Analysis (FTA), IPAM, Mitigasi, Risiko, Raw Water, Fault Tree Analysis (FTA), IPAM, Mitigation, Risk |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD233 Water consumption T Technology > TD Environmental technology. Sanitary engineering > TD259.2 Drinking water. Water quality |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | FARIDA NOVITA ANGGRAINI |
| Date Deposited: | 10 Aug 2021 01:51 |
| Last Modified: | 20 Aug 2024 07:12 |
| URI: | http://repository.its.ac.id/id/eprint/85271 |
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