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Tingkat Kehilangan Air Minum Perumda Air Minum Kota Palangka Raya dengan Neraca Air Wb-Easycalc dan Infrastructure Leakage Indeks (ILI) Waskita, Niam Bawa; Soedjono, Eddy Setiadi
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 2 (2026): SENTRI : Jurnal Riset Ilmiah, Februari 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i2.5818

Abstract

As the entity responsible for managing the drinking water supply system in Palangka Raya City, Perumda Air Minum Kota Palangka Raya faces a critical challenge in addressing the high level of water losses. In 2022, the company reported a Non-Revenue Water (NRW) level of 49.81%. This figure substantially exceeds the national reduction target of 20%, thereby necessitating immediate intervention measures.The primary objective of this study is to conduct a comprehensive analysis of the Water Balance and to evaluate the Infrastructure Leakage Index (ILI), with the aim of providing recommendations and assessing the effectiveness of the water loss control programs implemented by Perumda Air Minum Kota Palangka Raya. The research methodology employs data analysis using the WB-EasyCalc application to derive NRW and ILI values. In 2023, the total distributed water volume was recorded at 5,593,863 m³, of which 2,807,589 m³ was billable. Based on the Water Balance calculation, the annual water loss amounted to 2,786,274 m³, equivalent to 49.81%. The ILI assessment yielded a value of 26.97, with an average daily pressure of 9.7 meters. This score places the utility within Category D, indicating severe inefficiency and excessive resource wastage, thus requiring urgent corrective measures. Recommendations for water loss control emphasize the need for systematic evaluation and enhancement of existing programs. Priority improvements include the establishment of District Metered Areas (DMA), the implementation of customer meter surveys and calibrations, and the strengthening of pressure management practices.
Evaluasi Pengolahan Air Limbah Domestik dalam Meningkatkan Kinerja Sanitasi (Studi Kasus Kecamatan Kebomas, Gresik) Sa'dy, Mohammad Arsyad; Soedjono, Eddy Setiadi
Al-Ard: Jurnal Teknik Lingkungan Vol. 11 No. 2 (2026): Maret
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/alard.v11i2.2463

Abstract

The Kebomas District in Gresik Regency faces challenges in optimizing sanitation services through communal Wastewater Treatment Plants (WWTP). This study aims to evaluate the technical effectiveness of domestic wastewater treatment at three locations—KPP Karangmas, KPP Sejahtera, and KPP Sentosa—to improve regional sanitation performance. A quantitative descriptive method was employed by analyzing influent and effluent quality, as well as operational parameters such as Organic Loading Rate (OLR) and Hydraulic Retention Time (HRT). The results show that effluent concentrations for critical parameters exceeded the quality standards set by the Ministry of Environment and Forestry Regulation No. 11 of 2025, with ammonia levels ranging from 14.2–15.1 mg/L and fecal coliform reaching 11,000 MPN/100 mL. Removal efficiencies for BOD and COD varied significantly; KPP Karangmas showed the best performance with a COD removal efficiency of 72%, while KPP Sejahtera and KPP Sentosa only achieved 40-55, far below the 80% design target. This low efficiency is attributed to extreme underloading conditions, where the actual organic load was only 11-34% of the design capacity. In conclusion, WWTP performance is not yet optimal due to inappropriate influent organic loading and the lack of disinfection units and adequate aeration systems. Technical recommendations include modifying the system into an intermittent anaerobic-aerobic process to effectively reduce ammonia levels.
EVALUATION OF THE LEACHATE MANAGEMENT SYSTEM AT THE TAMANGAPA LANDFILL, MAKASSAR Irham, Andi Muhammad; Soedjono, Eddy Setiadi
Al-Ard: Jurnal Teknik Lingkungan Vol. 11 No. 2 (2026): Maret
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/alard.v11i2.2473

Abstract

The Tamangapa Landfill in Makassar receives more than 800 tons of solid waste per day under an open dumping system. This condition leads to leachate accumulation exceeding the available infrastructure capacity. Functional failures of the Leachate Treatment Plant (LTP) result in suboptimal treatment, causing leachate to be discharged directly into the environment. Therefore, immediate technical intervention is required. This study applies the Thornthwaite–Mather water balance method to estimate leachate discharge. In addition, laboratory analyses are conducted to evaluate influent and effluent quality based on regulatory standards. The results indicate that the LTP performance is highly ineffective, with an organic load removal efficiency of only 42%. Effluent concentrations of BOD (264.16 mg/L), COD (660.21 mg/L), and Total Nitrogen (161.65 mg/L) exceed the standards specified in PermenLHK No. 59/2016. The system failure is primarily attributed to structural and operational constraints, particularly excessive sludge accumulation and short-circuiting within the treatment ponds. Therefore, technical rehabilitation is required, including sludge dredging, installation of hydraulic baffles, and integration of advanced chemical treatment using the Fenton method to ensure compliance with effluent quality standards prior to environmental discharge.
TEKNOLOGI FERMENTASI TEPAT GUNA UNTUK SAMPAH MAKANAN DALAM MEMBANTU KETAHANAN PANGAN NASIONAL Soedjono, Eddy Setiadi; Barakwan, Rizkiy Amaliyah; Setiawan, Bagas; Rahmadilah, Mohamad Syamsudin; Ersa, Ghina Rizqina; Soedjono, Muhammad Rifqi
Jukung (Jurnal Teknik Lingkungan) Vol 12, No 1 (2026)
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v12i1.25791

Abstract

Meningkatnya harga pakan ternak dan kebutuhan hewan ternak seiring dengan perkembangan populasi dunia menuntut adanya sumber alternatif pakan ternak yang andal. Sumber pakan ternak yang konvensional tidak lagi dapat diandalkan karena lahan pertanian yang terus menyusut seiring bertambahnya penduduk dengan segala dinamikanya. Sampah makanan, sebagai komponen utama sampah, dapat dijadikan sumber pakan ternak yang layak. Melalui fermentasi menggunakan air cucian beras dan air dedak, dengan penambahan dedak untuk menjaga kadar air, proses fermentasi menghasilkan pakan setelah minimal lima hari. Keberhasilan fermentasi ditandai oleh aroma menyerupai tapai dan munculnya jamur putih pada permukaan sampel. Hasil percobaan menunjukkan bahwa air cucian beras maupun air dedak lebih efektif dibandingkan EM4, dan keduanya lebih baik dibandingkan NTJ.