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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Reka Lingkungan Jurnal Sains dan Teknologi Nuklir Indonesia (Indonesian Journal of Nuclear Science and Technology) Forum Geografi Jurnal Teknik Sipil AdBispreneur Jurnal Purifikasi INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Mariana Marselina, Mariana
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences

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THE POTENTIAL CIBERANG RIVER ANALYSIS FOR DRINKING WATER SUPPLY DEVELOPMENT OF BANTEN PROVINCE Ira Mulyawati; Indah Rachmatiah Siti Salami; Arwin Sabar; Mariana Marselina; Hernita Nasir
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 2, APRIL 2022
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1353.541 KB) | DOI: 10.25105/urbanenvirotech.v5i2.12589

Abstract

Aim: This study was aimed to analyze the potential of water sources in the Ciberang River to support drinking water supply system of Banten Province. Methodology and results: The method use to analyze the potential of Ciberang river is a hydrological statistical analysis. The results of the hydrological statistical analysis show that the water resources of the Ciberang River are not sufficient to meet domestic and industrial water needs in Banten Province. Domestic and industrial water demand in Banten Province in 2025 is estimated at 14.64 m3/s and 10.46 m3/s, respectively, while the mainstay discharge with the return period of 10 and 20 year for all durations does not meet these water needs. The mainstay discharge of the Ciberang River with a 10-year return period of 1, 2, 7, 15 and 30 day respectively was 0.08 m3/s, 0.1 m3/s, 0.19 m3/s, 0.36 m3/s, and 0.87 m3/s. The mainstays of the 20-year return period of 1,2,7,15 and 30 day respectively are 0.04 m3/s, 0.06 m3/s, 0.11 m3/s, 0.23 m3/s and 0.59 m3/s. Conclusion, significance, and impact study: Based on this, it is necessary to conserve water resources to increase the main flow of the Ciberang River. One of the strategic policies to increase the river's mainstay discharge is constructing the reservoir.
Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient Ery Nuralamsyah; Mariana Marselina
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 2 (2023): July 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i2.305-315

Abstract

Watersheds have an important role in managing rainwater. A good watershed can provide sufficient water for the community in the dry season and does not cause flooding in the rainy season. Therefore, watershed preservation is necessary as an effort to maintain or improve its function. Rehabilitation is an effort to restore, maintain, and improve the watershed function. In this study, rehabilitation was carried out in an area of 285 ha which cuts two watersheds, Langkapa and Poleang watershed. The success of this rehabilitation can be reviewed through the runoff coefficient before and after rehabilitation. The runoff coefficient is a value that expresses the percentage of rainwater that turns into surface runoff water. That value can be an indicator of the watershed quality. The determination of the runoff coefficient in this study used the Cook Method which considers four physical parameters, land cover, slope, soil infiltration, and surface deposit/flow density. The results showed the runoff coefficient decreased after the rehabilitation from 68.54% to 65.85% which means the rehabilitation has improved the watershed quality. But those change is not significant because the rehabilitation location actually is not the priority land (critical land) that needs rehabilitation.
REINVENSI KINERJA PERUSAHAAN DAERAH AIR MINUM (PDAM) DI INDONESIA MENUJU AGENDA SUSTAINABLE DEVELOPMENT GOALS 2030 Muftiadi, Anang; Rizal, Muhamad; Marselina, Mariana
Adbispreneur Vol 8, No 2 (2023): AdBispreneur : Jurnal Pemikiran dan Penelitian Administrasi Bisnis dan Kewirausa
Publisher : Departemen Ilmu Administrasi Bisnis, Fakultas Ilmu Sosial dan Ilmu Politik, UNPAD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/adbispreneur.v8i2.44848

Abstract

Achieving the target of drinking water access in SGDs 2030, Indonesia faces shortage of supply and development capacity, especially for PDAMs as service providers, so they need comprehensive strategies, considering the productivity, cost efficiency and sufficient profit level. Therefore, this study used measures the above three aspects, by using regression of 380 PDAMs data in Indonesia. Profit category consists of 1.3 percent of high profit PDAMs, 87.9 percent of profit, 9.5 percent of loss and 1.3 percent of huge loss. According to productivity, it shows that capital and number of employees has increasing return to scale. On the productivity categories, consist of 11.6 percent of high productivity,  42.65 percent of productive, 32.0 percent of less productive, and 13.8 percent of low productivity. According to the production cost category, all independent variables significantly affected the average cost. As many as 6.9 percent PDAM as high efficiency, 53.2 percent efficient, 25.4 percent less efficient, and 15.6 percent in-efficient. Then we have 32 PDAM categories of the three models with generic strategy option for individual PDAM strategies. Local governments as PDAM owners could use this model for development and performance increasement. In addition, sectoral ministries can utilize the 32 categories of PDAMs as basis for programs of facilitation, technical guidance, management and governance for achieving the SDGs 2030.Pencapaian target akses air minum pada SDGs 2030, Indonesia menghadapi keterbatasan pasokan dan kapasitas pengembangan, khususnya pada PDAM sebagai penyedia, sehingga membutuhkan strategi yang komprehensif, mempertimbangkan kategori produktivitas, efisiensi biaya hingga tingkat keuntungan yang mencukupi. Untuk itu, penelitian ini membahas ketiga aspek tersebut, menggunakan metode regresi dari data 380 PDAM di Indonesia.  Pada kategori Profit, sebanyak 1,3% tergolong profit tinggi, 87,9% memperoleh profit kecil, 9,5% rugi dan 1,3% rugi besar. Dari model produktivitas, bahwa kapital dan jumlah pegawai berpengaruh signifikan dan produksi bersifat increasing return to scale. PDAM Produktivitas tinggi sebanyak 11,6%, produktif 42,6%, kurang produktif 32,0% dan produktivitas rendah 13,8%. Dari model biaya produksi, seluruh variabel bebas signifikan mempengaruhi biaya rata-rata. PDAM efisiensi tinggi sebanyak 6,9%, efisien 53,2%, kurang efisien 25,4%, dan tidak efisien 14,6%. Dari ketiga bahasan, diperoleh 32 kategori PDAM dengan generic strategy masing-masing PDAM secara individual. Pemerintah daerah sebagai pemilik PDAM, dapat menggunakan model ini untuk arah pengembangan dan penyehatan. Selain itu kementerian teknis dapat memanfaatkan 32 kategori PDAM sebagai dasar kegiatan fasilitasi, pembinaan teknis, manajemen dan tata kelola agar dapat menjadi wahana pencapaian agenda SDGs 2030.
ANALISIS PERUBAHAN PENGGUNAAN LAHAN DAN KUALITAS AIR DI DAS CITARUM HULU Nirmayanti, Nirmayanti; Marselina, Mariana
Jurnal Reka Lingkungan Vol 13, No 1 (2025)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekalingkungan.v13i1.71-84

Abstract

Kualitas air penting untuk mengevaluasi kelayakannya bagi kebutuhan domestik, industri, pertanian dan lingkungan. Seiring waktu, kualitas air mengalami degradasi, yang dipengaruhi oleh penggunaan lahan termasuk badan air, hutan, permukiman dan pertanian serta konfigurasi penggunaan lahan. Penelitian ini bertujuan mengevaluasi dampak perubahan penggunaan lahan terhadap kualitas air di Sungai Citarum Hulu dengan daerah tangkapan Wangisagara, Koyod, Cisirung dan Nanjung. Hasil studi menunjukkan terjadi perubahan penggunaan lahan dan parameter DHL, suhu, pH, TSS, NH3-N, BOD, COD, DO, NO3-N dan klorin bebas mengalami efek spasial dan temporal. Regresi linear berganda mengidentifikasi hubungan antara variabel penggunaan lahan dan satu variabel kualitas air. DHL dan klorin bebas berkorelasi negatif dengan hutan, sedangkan DO berkorelasi positif. Permukiman berkorelasi positif dengan COD, BOD, dan suhu. Pertanian berkorelasi positif dengan NO3-N, NH3-N, dan TSS, namun negatif dengan DO. Badan air berkorelasi negatif dengan suhu dan positif dengan klorin bebas. Analisis menunjukkan CONTAG berkorelasi positif dengan BOD dan negatif dengan DO, sementara LSI berkorelasi negatif dengan COD, dan ED berkorelasi negatif dengan klorin bebas. Analisis redundansi menunjukkan daerah tangkapan air Cisirung menghasilkan varians terbaik dibanding lainnya.
Co-Authors Anindrya Nastiti Arwin Sabar Arwin Sabar Arwin Sabar Astrid Monica Dharmawan Phan Diah Dwi Lestiani Dyah Marganingrum Dyah Marganingrum Dyah Marganingrum Ery Nuralamsyah Hernita Nasir Iin Pratama Sari Indah R S Salami Indah R S Salami, Indah R S Indah Rachmatiah Siti Salami Ira Mulyawati Karina Indah Choirunnisa Karina Nursyafira M. Rizal Marganingrum, Dyah Nirmayanti, Nirmayanti Prof. Dr. Muhayatun, Santoso R. Anang Muftiadi Rita Mukhtar Siska Widya D Kusumah Siti Ai Nurhayati