Kartikasari, Ika Bayu (2023) Kajian Dampak Proses Pengolahan Air Minum Menggunakan Life Cycle Assessment (LCA) dan Analytic Hierarchy Process (AHP) untuk Menimalisir Risiko Dampak Lingkungan. Masters thesis, InstitutTeknologi Sepuluh Nopember.
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Abstract
Instalasi pengolahan air bersih di Instalasi Pengolahan Air (IPA) dilakukan dengan dengan pengolahan secara konvensional. Proses pengolahan air secara konvensional memberikan dampak ke lingkungan akibat adanya proses
pengolahan air bersih. Pengolahan air bersih menghasilkan dampak GWP dan Eutrofikasi yang berasal dari penggunaan bahan kimia dan Listrik. Penelitian ini bertujuan menganalisis faktor penyebab dampak lingkungan yang timbul akibat adanya proses pengolahan air bersih di Instalasi Pengolahan Air (IPA) PDAM dan menentukan prioritas kebijakan dalam terkait pengurangan dampak lingkungan dan peningkatan kualitas pengolahan air minum di Instalasi Pengolahan Air bedasarkan hasil dari kajian LCA dan AHP.
Metode Life Cycle Assessment (LCA) merupakan metode penilaian mengenai potensi dampak lingkungan dan evaluasi kinerja lingkungan suatu proses terhadap produk. Life Cycle Assessment (LCA) terdiri dari empat tahapan, yaitu penentuan Goal and Scope, Life Cycle Inventory, Life Cycle Impact Assessment, dan interpretasi data. Pada penelitian ruang lingkup LCA yang digunakan adalah Gate to Gate yaitu pada unit proses Koagulasi, Flokulasi, dan Sedimentasi. Data LCA kemudian diolah dengan AHP sebagai pemilihan keputusan dengan kriteria biaya investasi dan produksi, kinerja alternatif terhadap dampak lingkungan, serta kemudahan dalam pelaksanaan. Alternatif pelaksanaan yang diusulkan yaitu Optimalisasi Penggunaan bahan Kimia, Penghematan dan Pemilihan Sumber energi, dan Daur ulang (recycling).
Dari hasil kajian LCA, potensi dampak GWP sebesar 12.760,76 KgCO2- eq berasal dari Flokulasi dimana menghasilkan flok dari penambahan bahan kimia. Sedangkan potensi dampak eutrofikasi sebesar 268,53 KgPO4-eq yang berasal dari timbulan lumpur. Dari penelitian ini akan dianalisa kegiatan yang paling banyak menghasilkan dampak dan dianalisis upaya-upaya yang efektif untuk menurunkan dampak yang terjadi. Hasil pemilihan keputusan dalam penurunan dampak lingkungan dengan melakukan optimalisasi bahan kimia sebagai prioritas utama sebesar 55%, kemudian prioritas kedua dengan melakukan daur ulang lumpur sebesar 23%, dan terakhir melakukan penghematan dan alternatif energi menjadi prioritas terakhir sebesar 22%. Hasil dari pelaksanaan program tersebut jika dilaksanakan dapat mengurangi dampak GWP 20.079,17 kgCO2-eq dan dampak eutrofikasi dapat diturunkan sebesar 201,401 kg PO4-eq.
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The clean water treatment plant at the Water Treatment Plant (IPA) is carried out by conventional processing. Conventional water treatment processes have an impact on the environment due to the clean water treatment process. Clean water treatment produces GWP and Eutrophication impacts that come from the use of chemicals and electricity. This study aims to analyze the factors causing environmental impacts that arise as a result of the clean water treatment process at the PDAM Water Treatment Plant (IPA) and determine policy priorities related to reducing environmental impacts and improving the quality of drinking water treatment at the Water Treatment Plant based on the results of the LCA and AHP studies.
The Life Cycle Assessment (LCA) method is an assessment method regarding potential environmental impacts and evaluation of the environmental performance of a process for a product. Life Cycle Assessment (LCA) consists of four stages, namely determining Goal and Scope, Life Cycle Inventory, Life Cycle Impact Assessment, and data interpretation. In the research the scope of LCA used is Gate to Gate, namely in the Coagulation, Flocculation, and
Sedimentation process units. LCA data is then processed with AHP as a decision selection with the criteria of investment and production costs, alternative performance against environmental impacts, and ease of implementation. The
proposed implementation alternatives are Optimizing the Use of Chemicals, Saving and Selection of Energy Sources, and Recycling. From the results of the LCA study, the potential GWP impact of 12,760.76 KgCO2-eq comes from flocculation which produces floc from the addition of chemicals. While the potential impact of eutrophication is 268.53 KgPO4-eq
originating from the mud. From this research, we will analyze the activities that produce the most impact and analyze effective efforts to reduce the impact that
occurs. The results of selecting decisions in reducing environmental impacts by optimizing chemicals as the top priority are 55%, then the second priority is by recycling sludge by 23%, and finally saving and alternative energy is the last priority by 22%. The results of implementing this program, if implemented, can reduce the impact of GWP by 20,079.17 kgCO2-eq and the impact of eutrophication can be reduced by 201.401 kg PO4-eq.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Emisi, Instalasi Pengolahan Air Minum, Life Cycle Assessment (LCA), Analytic Hierarchy Process (AHP),Emissions, Drinking Water Treatment Plant |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD194.6 Environmental impact analysis T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis |
| Depositing User: | Ika Bayu Kartikasari |
| Date Deposited: | 05 Aug 2023 08:09 |
| Last Modified: | 05 Aug 2023 08:09 |
| URI: | http://repository.its.ac.id/id/eprint/103280 |
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