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All Journal Jurnal Purifikasi Jurnal Teknologi Lingkungan Lahan Basah
Zafira, Athaya Dhiya
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Chemical Engineering, Chemistry & Bioengineering Energy Engineering Environmental Science Immunology & microbiology Public Health

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Strategi Penurunan Non Revenue Water (NRW) melalui Analisis Neraca Air dan Indikator Kinerja NRW pada Jaringan Distribusi SPAM Cabang Karawang Zafira, Athaya Dhiya; Nurhayati, Ervin; Novianus R.P, Gabriel
Jurnal Teknologi Lingkungan Lahan Basah Vol 11, No 3 (2023): Oktober 2023
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v11i3.69033

Abstract

Perumdam Tirta Tarum as a BUMD with healthy performance and has FCR (Full Cost Recovery), but the NRW (Non Revenue Water) score is still quite high at 32.16%. The Karawang branch is the largest contributor to the volume of water loss, around 33% of the total water loss in 19 Branches/IKK units in other service areas. This study uses water balance analysis methods and NRW performance indicators to formulate recommendations for NRW reduction programs. Annual water loss during the period April 2022 to March 2023 was 23.96% with a loss volume of 2,343,756m3/12 months. The percentage of physical water loss is 18.49% and non-physical water loss is 5.47%. When converted to cost values, the annual loss of non-physical water is Rp.2,610,791,315.- and the annual loss of physical water is Rp.8,640,197,936.-. Physical loss is classified as category C performance (severe leakage) and the overall ATR performance indicator is classified as category C (poor ATR condition). Recommendations or strategies for handling NRW efficiently at study locations can be formulated after understanding the causes of NRW and the most influencing component factors.
STRATEGI PENGENDALIAN NON-REVENUE WATER (NRW) MELALUI PERENCANAAN DMA DAN SCADA BERBASIS IOT DI SPAM IKK BIYONGA Zafira, Athaya Dhiya; Nurhayati, Ervin
Purifikasi Vol 22 No 1 (2023): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v22.i1.450

Abstract

PDAM (Local Drinking Water Company) Gorontalo Regency is one of many PDAM with a healthy performance rating, but the NRW (Non-Revenue Water) value is still quite high at 32.05% and has not reached FCR (Full Cost Recovery). This happens because of the lack of control over the distribution network, so a strategy that originally used a passive approach must be proactive. Proactive control begins with planning the establishment of a DMA (District Meter Area) which is then designed to become a two-way communication system with sophisticated IoT (Internet of Things)-based sensors to facilitate monitoring and controlling of distribution networks. The formation of DMA is expected to overcome the NRW problem. The service area of SPAM IKK Biyonga, Gorontalo Regency, is planned to form 5 DMAs taking into account the size of the zone, zone boundaries (administrative boundaries, river boundaries, bridges, etc.), customer connections (SR) within the zone, zone elevation, zone piping, and types of consumers within the zone. DMA 1 covers 1.616 SRs with 10 served villages, DMA 2 covers 2.620 SRs with 4 served villages, DMA 3 covers 2.400 SRs with 6 served villages, DMA 4 covers 1.930 SRs with 11 served villages, and DMA 5 covers 2.281 SRs with 12 served villages. There is also a plan to install a certain number of sensor equipment for each DMA, namely: a flow and pressure monitoring system; water quality monitoring sensors; as well as smart water meters. All sensors and tools are integrated into a single unit by the SCADA system at each location which is integrated into a centralized OMC (Operation Management Center).
Co-Authors Ervin Nurhayati, Ervin Novianus R.P, Gabriel