Analisis Penurunan Kehilangan Air Melalui Manajemen Tekanan pada Perumda Air Minum Tirta Khatuistiwa (Studi Kasus SPAM Pontianak Timur)

Adi, Basuki Waskitho (2023) Analisis Penurunan Kehilangan Air Melalui Manajemen Tekanan pada Perumda Air Minum Tirta Khatuistiwa (Studi Kasus SPAM Pontianak Timur). Masters thesis, Institut Teknologi Sepuluh Nopember.

Text (Thesis Basuki Waskitho Adi) 6014211031-Master_Thesis-Basuki Waskitho Adi.pdf - Accepted Version Restricted to Repository staff only until 1 April 2025. Download (11MB) | Request a copy

Abstract

Pada Perumda Air Minum Tirta Khatulistiwa, SPAM Pontianak Timur merupakan SPAM dengan tingkat NRW paling besar. Pada tahun 2021, SPAM Pontianak Timur mempunyai NRW sebesar 44,24%, jauh lebih tinggi dibandingkan dengan SPAM BKST 30,95% dan SPAM Pontianak Utara 21,74%. Kondisi ini masih berlanjut pada triwulan I tahun 2022 dimana SPAM Pontianak Timur memiliki NRW 44,34%, SPAM BKST 29,31% dan SPAM Pontianak Utara 14,07%. Indikasi penyebab dari tingginya NRW di SPAM Pontianak Timur salah satunya adalah dikarenakan tingginya tekanan pada input sistem. Pada penelitian ini dilakukan analisis penurunan kehilangan air dilakukan melalui manajemen tekanan pada SPAM Pontianak Timur. Analisis tersebut dilakukan dengan cara memodelkan tekanan pada SPAM Pontianak Timur berdasarkan demand pattern pola pemakaian air pelanggan yang sebelumnya didapatkan melalui pengolahan data DMA. Data logger terpasang menyajikan Data debit pada input sistem (IPA Parit Mayor, Master Meter DMA) dan data tekanan pada input sistem, input DMA, serta titik kritis. Data pemakaian air pelanggan didapatkan dari data rekenening ditagih (DRD) yang berasal dari Bagian Pelayanan Perumda. Data kebocoran diwakili oleh emitter coefficient pada pemodelan yang dilakukan melalui EPANET 2.2. Perubahan tekanan pada input sistem memerlukan perbaikan tekanan pada area layanan melalui perbaikan jaringan, penempatan booster dan penyesuaian pompa. Selisih dari penghematan debit input sistem yang didapat pada simulasi dibandingkan dengan nilai investasi yang dikeluarkan untuk perbaikan tekanan melalui analisis kelayakan finansial. Pemodelan Pada Alternatif 1 melalui perlakuan penurunan tekanan pada input supply rata-rata sebesar 10,37% didapatkan penurunan kehilangan air sebesar 0,55% atau sebesar 228 m3/hari. Pada Alternatif 2 perlakuan penurunan tekanan pada input supply rata-rata sebesar 33,13% disertai dengan pengoperasian booster di Ambawang serta perbaikan pipa di lapangan menghasilkan penurunan penurunan kehilangan air sebesar 3,07% atau sebesar 1.217 m3/hari. Pada Alternatiff 3 perlakuan penurunan tekanan pada input supply rata-rata sebesar 40,38% disertai dengan pengoperasian booster di Ambawang dan Tanjung raya 1 serta perbaikan pipa di lapangan menghasilkan penurunan penurunan kehilangan air sebesar 3,33% atau sebesar 1.316 m3/hari. Alternatif 3 merupakan alternatif terbaik yang dapat direkomendasikan dalam penurunan kehilangan air pada SPAM Wilayah Pontianak Timur, Perumda Air Minum Tirta Khatulistiwa. Hasil analisis finansial Alternatif 3 NPV secara kumulatif sebesar Rp. 3.041.021.185 dengan Break Even Point (BEP) selama 9 Tahun 1 Bulan, nilai BCR 1,12 dan nilai IRR 12,41%.
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East Pontianak Water Distribution Networks (WDNs) is the WDNs with the highest water loss level. In 2021 at Perumda Air Minum Tirta Khatulistiwa. It has an NRW of 44.24%, much higher than the 30.95% BKST WDNs and North Pontianak WDNs 21.74%. This condition continued in the first quarter of 2022, when East Pontianak WDNs had NRW 44.34%, BKST WDNs 29.31% and North Pontianak WDNs 14.07%. One of the causes of the high NRW in East Pontianak WDNs is due to over pressure in the system input. In this study, an analysis of water loss reduction was carried out through pressure management at the East Pontianak WDNs. The analysis was carried out by modeling the pressure on the East Pontianak WDNs based on the customer's demand pattern, which was previously obtained through DMA data processing. The installed data logger provides discharge data at system inputs (IPA Parit Major, Master Meter DMA) and pressure data at system inputs, DMA inputs, and critical points. Customer water usage data is obtained from billed account data originating from the service department. The leakage value is represented by the emitter coefficient by modeling through EPANET 2.2. Changes in system input pressure require pressure correction in the service area through network repairs, booster placement and pump adjustments. The difference from the system input discharge savings obtained in the simulation compared to the investment value incurred for pressure improvement through a financial feasibility analysis. Modeling in Alternative 1 through the treatment of pressure drop at the input supply by an average of 10,37%, the water loss decreased by 0,55% or 228 m3/day. In Alternative 2, the pressure drop treatment at the input supply is an average of 33.13% accompanied by the operation of a booster in Ambawang and pipe repairs in the field resulting the decrease in water loss of 3,07% or 1.217 m3/day. In Alternative 3, the pressure reduction treatment at the input supply was an average of 40,38% accompanied by the operation of boosters in Ambawang and Tanjung Raya 1 and pipe repairs in the field resulting the decrease in water loss of 3,33% or 1.316 m3/day. Alternatif 3 is the best alternative that can be recomend to decrease the water loss at East Pontianak WDNs. The result of the analisys shows that Alternative 3 has cumulative NPV is Rp. 3.041.021.185, while Break Even Point (BEP) is 9 years 1 Month, BCR value is 1,12 and IRR 12,41%.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Kehilangan Air, Pola Pemakaian Air, Manajemen Tekanan, Pontianak Timur, Water Losses, Demand Pattern, Pressure Control, East Pontianak
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD481 Water distribution systems
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis
Depositing User:	Basuki Waskitho Adi
Date Deposited:	20 Jan 2023 08:21
Last Modified:	20 Jan 2023 08:21
URI:	http://repository.its.ac.id/id/eprint/95510

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