Romadhona, Risa (2021) Kajian Risiko Pengolahan Air Baku PT Air Bersih Jawa Timur Unit SPAM Regional Mojolagres, Mojokerto Menggunakan Metode Failure Mode And Effects Analysis (FMEA). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Seiring bertambahnya jumlah penduduk dapat meningkatkan pencemaran air sungai sehingga menyebabkan penurunan kualitas air baku. Hal tersebut dapat memungkinkan terjadinya penurunan kinerja instalasi pengolahan yang dapat menimbulkan kegagalan unit pengolahan dan penurunan kualitas air yang dihasilkan oleh suatu unit SPAM terutama parameter kekeruhan. Sistem yang digunakan oleh SPAM Mojolagres menggunakan sistem pengolahan konvensional. Sumber air baku dari unit SPAM Mojolagres adalah berasal dari Sungai Brantas. Tujuan dari kajian penelitian ini yaitu mengidentifikasi kualitas air baku dan air produksi pada sistem pengolahan dari IPA unit SPAM Mojolagres, menetapkan besaran risiko kegagalan apabila air baku dari Sungai Brantas digunakan pada IPA unit SPAM Mojolagres dengan metode Fishbone Analysis dan Failure Mode and Effect Analysis (FMEA), dan memberikan mitigasi yang akan dilakukan untuk mengurangi risiko kegagalan pada sistem produksi IPA unit SPAM Mojolagres.
Metode yang digunakan untuk mengidentifikasi penyebab kegagalan proses produksi pada penelitian ini yaitu Fishbone Analysis dan Failure Mode and Effects Analysis (FMEA). Fishbone Analysis digunakan untuk mendapatkan akar penyebab permasalahan dari setiap aktivitas yang ada. Selanjutnya dilakukan penilaian terkait risiko yang telah teridentifikasi sehingga didapatkan risiko yang paling berpengaruh menggunakan metode Failure Mode and Effects Analysis (FMEA). Setelah itu didapatkan nilai RPN tertinggi yang dijadikan dasar penentuan prioritas tindakan mitigasi. Aspek teknis yang digunakan dalam kajian penelitian ini adalah data air baku, air produksi, dan sistem unit pengolahan dari SPAM Mojolagres Mojokerto sedangkan aspek non-teknisnya adalah sumber daya manusia dan Standard Operating Procedure (SOP) SPAM Mojolagres Mojokerto.
Hasil yang diperoleh dari kajian penelitian ini berdasarkan laporan hasil pengujian air baku menunjukkan kualitas air baku di intake Sungai Brantas unit SPAM Mojolagres termasuk baku mutu kualitas air kelas III (PP No 22 Tahun 2021). Kualitas air produksi yang dihasilkan sudah sesuai dengan baku mutu kualitas air minum menurut Peraturan Menteri Kesehatan No 492 Tahun 2010. Namun hasil efisiensi penyisihan kekeruhan pada setiap unit, masih belum memenuhi kriteria efisiensi. Kegagalan potensial terbesar berdasarkan nilai Risk Priority Number (RPN) serta pembobotan risiko yaitu adalah nilai kecapatan backwash pada unit filter (aspek teknis) dengan nilai 27 dan pelaksanaan prosedur operasional sesuai SOP (aspek non-teknis) dengan nilai 50. Berdasarkan hal tersebut maka mitigasi untuk kecapatan backwash unit filter yaitu dengan pengaturan debit backwash yang yaitu sekitar 158,64 – 220,3 L/detik agar kecepatan backwash dapat sesuai dan unit dapat bekerja optimal. Sedangkan untuk pelaksanaan prosedur operasional sesuai SOP yaitu dengan mengadakan monitoring dan evaluasi terkait pengoperasian dan pemeliharaan yang dilakukan.
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As the population increases, river water can increase, causing a decrease in raw water quality. This can allow for a decrease in the performance of the processing installation which can cause the failure of the processing unit and a decrease in the quality of the air produced by a SPAM unit, especially the turbidity parameter. The system used by Mojolagres SPAM uses a conventional processing system. The source of raw water from the Mojolagres SPAM unit comes from the Brantas River. The purpose of this study is to identify the quality of raw water and production water in the treatment system of the Mojolagres SPAM IPA unit, determine the amount of failure risk if raw water from the Brantas River is used in the Mojolagres SPAM IPA unit with Fishbone Analysis and Failure Mode and Effect Analysis (FMEA) methods and provide mitigation that will be carried out to reduce failures in the Mojolagres IPA SPAM production system unit.
The method used to identify the cause of the failure of the production process in this research is Fishbone Analysis and Failure Mode and Effects Analysis (FMEA). Fishbone Analysis is used to get the root cause of each activity. Furthermore, related assessments were carried out so that the most influential results were obtained using the Failure Mode and Effects Analysis (FMEA) method. After obtaining the highest RPN value which is used as the basis for priority mitigation actions. The technical aspects used in this research study are data on raw water, production water, and processing unit systems from the Mojolagres Mojokerto SPAM, while the non-technical aspects are human resources and Standard Operating Procedure (SOP) for Mojolagres Mojokerto SPAM.
The results obtained from this study based on the report on the raw water test results show that the quality of raw water at the intake unit of the Brantas River SPAM Mojolagres includes class III water quality standards (PP No. 22 of 2021). The quality of the resulting production is in accordance with the quality standards of drinking water quality according to the Regulation of the Minister of Health No. 492 of 2010. However, the results of the elimination of turbidity efficiency in each unit still do not meet the efficiency criteria. The biggest potential failure is based on the value of the Risk Priority Number (RPN) and risk weighting, namely the value of backwash speed on the filter unit (technical aspect) with a value of 27 and the implementation of operational procedures according to SOP (non-technical aspects) with a value of 50. Based on this, the mitigation for the backwash speed of the filter unit is by setting the backwash discharge which is around 158.64 – 220.3 L/s so that the backwash speed can be adjusted and the unit can work optimally. As for the implementation of operational procedures according to the SOP, namely by monitoring and evaluating related operations and maintenance carried out.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | air baku, air minum, Fishbone Analysis, FMEA, PTAB, drinking water, Fishbone Analysis, FMEA, PTAB, raw water |
| 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, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Risa Romadhona |
| Date Deposited: | 10 Aug 2021 03:44 |
| Last Modified: | 02 Oct 2024 05:31 |
| URI: | http://repository.its.ac.id/id/eprint/85284 |
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