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Journal : Journal of Sustainable Infrastructure

Utilization of Sludge from the Communal Wastewater Treatment Plant (WWTP) in the Asrama Dinas Lingkungan Hidup (DLH) Jagakarsa of South Jakarta City as Basic Material for Organic Fertilizer Marsono, Muhammad Ridho; Zahra, Nurulbaiti Listyendah; Sofiyah, Evi Siti
Journal of Sustainable Infrastructure Vol. 2 No. 2 (2023): Importance of Public Health and Waste Management
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v2i2.22

Abstract

Asrama DLH Jagakarsa has a communal wastewater treatment plant (WWTP) that produces sludge that has not been treated. Asrama DLH residents directly apply the sludge from the communal WWTP as fertilizer for plants. Fecal sludge contains organic substances that provide nutrients to plants. However, there is a possibility that it still contains pathogenic bacteria and metals that can be harmful to plants. This research aims to utilize the fecal sludge from Asrama DLH Jagakarsa WWTP as organic fertilizer with additional ingredients in the form of humic acid. During fertilizer manufacturing, the bacteria and metals are removed. The analysis used includes the composting process conditions analysis, characteristics tests to determine the content of feces and fertilizers, and analysis of the application to plants. Analysis of the conditions in the composting process is the analysis of the pH value of organic fertilizers. Characteristic tests include soil variation (V1), WWTP sludge (V2), and organic fertilizer (V3). Analysis of the application of plant growth was carried out by testing the variation of soil 100% (P1), soil 80% + 20% fecal sludge (P2), and soil 80% + 20% organic fertilizer (P3). The laboratory analysis includes the analysis of nitrogen, phosphorus, potassium (NPP), and water content which will be compared with the quality standard of the Decree of the Minister of Agriculture Number 261 of 2019. The plant that is used as an indicator of the success of organic fertilizer in plant growth is the kale plant. The best value was obtained in the variation of organic fertilizer (V3), namely the NPP content and water content, respectively, which were 4.52%, 2.57%, 0.05%, and 19.84%. This shows that organic fertilizer increases NPP elements and plant growth.
Antibiotic Resistance in Domestic Wastewater: Addressing Treatment Inefficiencies and the Imperative for Sanitation System Enhancement Sofiyah, Evi Siti; Ridhosari, Betanti; Zahra, Nurulbaiti Listyendah; Sastroredjo, Suharti
Journal of Sustainable Infrastructure Vol. 3 No. 2 (2024): Advances and Challenges in Sustainable Infrastructure
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v3i2.34

Abstract

The increasing detection of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in domestic wastewater represents a pressing global environmental and public health challenge. Wastewater treatment plants (WWTPs), while designed to remove conventional pollutants, are increasingly recognized as reservoirs and hotspots for the persistence and horizontal gene transfer (HGT) of ARGs among microbial communities. This study aims to explore the mechanisms underlying bacterial antibiotic resistance, evaluate the limitations of conventional treatment processes –particularly disinfection methods such as chlorination – in effectively removing ARB and ARGs, and assess the implications for sanitation management in Indonesia. A systematic literature review (mini-review format) was conducted to synthesize recent findings on ARB/ARGs presence in WWTPs and the performance of existing treatment technologies. Results show that ARGs can persist even after disinfection, especially in extracellular forms, and that chlorination may, in some cases, promote ARGs release through cell lysis. Furthermore, several resistant strains demonstrate tolerance to standard chlorine doses. In Indonesia, where domestic wastewater treatment coverage and compliance remain inadequate, the uncontrolled discharge of partially treated or untreated wastewater exacerbates the spread of antibiotic resistance in aquatic environments. This study concludes that existing treatment systems are insufficient to address antibiotic resistance risks and emphasizes the urgent need for improved sanitation infrastructure, monitoring, and targeted treatment technologies.
Analisis Dampak dan Strategi Kebijakan Pengendalian Kontaminasi Escherichia coli pada Minuman Olahan di Universitas Sofiyah, Evi Siti; Suryawan, I Wayan Koko
Journal of Sustainable Infrastructure Vol. 4 No. 2 (2025): Sustainable Infrastructure Breakthroughs: From Concrete to Circularity
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v4i2.61

Abstract

Kualitas air minum yang aman dan higienis di lingkungan universitas merupakan aspek fundamental dalam menjaga kesehatan sivitas akademika serta mendukung reputasi institusi sebagai ruang belajar yang berkelanjutan. Salah satu risiko utama terhadap keamanan air minum dan minuman olahan di kantin kampus adalah kontaminasi Escherichia coli (E. coli), yang menjadi indikator adanya pencemaran fekal. Studi ini tidak berfokus pada uji laboratorium, melainkan pada analisis dampak kualitatif dan evaluasi kebijakan pengendalian melalui pendekatan cost–benefit. Tujuan utama penelitian ini adalah untuk mengidentifikasi konsekuensi sosial, ekonomi, dan lingkungan dari potensi kontaminasi E. coli, menilai efektivitas pendekatan pencegahan berbasis investasi higienitas, serta merumuskan strategi kebijakan jangka pendek, menengah, dan panjang di tingkat universitas. Analisis dilakukan menggunakan kerangka SWOT dan matriks aksi strategis (Strategic Action Matrix) untuk merumuskan langkah implementasi yang realistis, terukur, dan berorientasi pada keberlanjutan. Hasil analisis menunjukkan bahwa penerapan sistem desinfeksi air, pelatihan kebersihan bagi pengelola kantin, dan pembentukan mekanisme pemantauan kualitas air secara berkala memberikan manfaat sosial dan ekonomi yang signifikan dibandingkan pendekatan reaktif. Upaya preventif ini terbukti memperkuat tata kelola air kampus, meningkatkan kepercayaan mahasiswa terhadap keamanan konsumsi, dan mendukung penerapan prinsip green campus.