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All Journal Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Jurnal Riset Kimia Jurnal Dampak Jurnal Penelitian Pendidikan IPA (JPPIPA) Jukung (Jurnal Teknik Lingkungan) Jurnal Serambi Engineering Unes Law Review Jurnal Teknik Lingkungan Jurnal Riset Teknologi Pencegahan Pencemaran Industri REACTOR : Journal of Research On Chemistry And Engineering Journal Serambi Engineering (JSE) Journal of Civil Engineering and Vocational Education
Nur, Ansiha
Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Transportation

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Simulasi Sistem Jaringan Distribusi Air Minum di Kampus Unand Menggunakan EPAnet Puti Sri Komala; Ansiha Nur; Ridwan Ridwan; Septia Emida
Jurnal Ilmu Lingkungan Vol 23, No 3 (2025): May 2025
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.23.3.703-711

Abstract

Penelitian ini bertujuan untuk mengevaluasi pemakaian air dan menganalisis jaringan distribusi utama pada sistem penyediaan air minum Universitas Andalas (SPAM Unand) melalui simulasi EPAnet. Hasil simulasi yang diperoleh dibandingkan dengan peraturan yang berlaku. Pengamatan fluktuasi air dilakukan di outlet reservoir selama 8 jam mulai jam 08.00 sampai 16.00. Data jaringan distribusi SPAM Unand berasal dari Master Plan Unand, pengukuran lapangan dan google earth. Hasil pengamatan fluktuasi air di reservoir selama 8 jam diperoleh debit pemakaian air sebesar 13,13 L/detik, debit puncak 105 L/jam dengan faktor puncak 2,52. Pemakaian air per orang per hari diperoleh sebesar 32 L/orang/hari, hasil ini lebih kecil dibandingkan dengan SNI 7065- 2005 standar pemakaian air untuk perguruan tinggi yaitu 80 L/hari.  Tekanan di jaringan distribusi air bersih di SPAM Unand hasil simulasi EPAnet berkisar antara 31,93 – 124,43, sedangkan kecepatan aliran berkisar antara 0,03-0,42 m/detik. Tekanan di jaringan distribusi masoh melebihi kriteria dan kecepatan rata-rata belum memenuhi Peraturan Menteri Pekerjaan Umum No. 18/PRT/M/2007 tentang Penyelenggaraan Pengembangan Sistem Penyediaan Air Minum. Kecilnya kecepatan aliran dan tingginya tekanan yang terjadi pada aliran pipa disebabkan oleh diameter pipa yang kecil dan kawasan memiliki beda elevasi yang cukup besar.
Analisis Potensi Eco-Enzyme dari Limbah Kulit Buah dalam Penyisihan dan COD pada Air Sungai Tercemar Secara Batch Izraini Islamiati Putri; Ansiha Nur
REACTOR: Journal of Research on Chemistry and Engineering Vol. 7 No. 1 (2026)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v7i1.85

Abstract

River water pollution due to high organic waste load has become a serious environmental issue, marked by high COD values. This study aims to analyze the potential of eco-enzyme from fruit peel waste in reducing COD values in batch-contaminated river water. Eco-enzyme was made from banana, orange, watermelon, papaya, and pineapple peels with a ratio of 3:1:10 (organic material:molasses:water) thru three months of fermentation. Testing was conducted on artificial river water with concentration variations of 5%, 10%, and 15% over 12 days. The parameters measured included pH, temperature, DO, and COD. The results showed that the eco-enzyme has protease, amylase, and lipase bioactivity. The decrease in COD values was intensive from day 1 to day 5 and reached a steady state from day 9 to day 12. A 5% concentration provided the lowest final COD value (22-30 ppm) with banana and pineapple peels as the best raw materials
Biocatalytic Performance and Dosage-Dependent Behavior of Fruit Peel–Derived Eco-Enzymes in Organic Matter Removal from Simulated Lake Water Aldho Pramana Putra; Puti Sri Komala; Ansiha Nur
Jurnal Riset Kimia Vol. 17 No. 1 (2026): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v17i1.936

Abstract

The increasing organic pollution in lake water systems due to continuous domestic wastewater discharge presents significant environmental challenges, particularly in urban areas. This study investigates the biocatalytic performance and dosage-dependent behavior of fruit peel–derived eco-enzymes in removing organic matter from simulated lake water under laboratory-scale batch conditions. Eco-enzymes were produced from banana, pineapple, papaya, watermelon, and orange peels, including a mixed formulation, produced through a three-month anaerobic fermentation process. The products were characterized based on physicochemical properties and enzymatic activities, including amylase, protease, and lipase, to evaluate their biocatalytic potential. Batch experiments were conducted using eco-enzyme dosages of 5%, 10%, and 15%, with continuous monitoring of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) over 12 days until steady-state conditions were achieved. The results showed that eco-enzymes exhibited significant biocatalytic activity, promoting enzymatic hydrolysis and degradation of complex organic compounds into simpler biodegradable forms. Treatment performance was strongly influenced by dosage, where the 5% concentration achieved the highest removal efficiencies, with maximum reductions of 71.7% for COD and 74.6% for BOD, while higher dosages reduced performance due to additional organic loading. Statistical analysis using one-way ANOVA confirmed that eco-enzyme dosage significantly affected treatment performance, with highly significant differences for COD removal (F = 280.684; p < 0.05) and significant differences for BOD removal (F = 185.117; p < 0.05). The 5% dosage consistently produced the highest kinetic constants for both COD and BOD removal. The highest COD rate constant was obtained with the banana-based eco-enzyme (k = 1.0815 day⁻¹), whereas the highest BOD rate constant was achieved by the pineapple-based eco-enzyme (k = 1.0387 day⁻¹). Higher dosages (10% and 15%) resulted in negative removal efficiencies, suggesting inhibition due to excessive organic loading and preventing meaningful kinetic interpretation. These findings demonstrate the dual role of eco-enzymes as both biocatalytic agents and contributors to organic loading, highlighting the importance of dosage optimization supported by both statistical and kinetic approaches in sustainable lake water remediation systems.
Analisis Potensi Pemanfaatan Air Hujan dan Perancangan Sistem Pemanenan Air Hujan (SPAH) pada Gedung Rektorat Universitas Andalas Fadil Ikhsan Anugrah; Ansiha Nur; Puti Sri Komala; Wildani S. Sihombing; Syawal Andika P.
Dampak Vol. 21 No. 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.21.1.23-31.2024

Abstract

This research aims to analyze the potential of utilizing rainwater at the Rectorate Building of Universitas Andalas by examining both its quantity and quality, and by proposing an appropriate rainwater harvesting system (RWHS) design. The quantitative assessment employed 20 years (2003–2022) of maximum daily rainfall data collected from the Batu Busuak Station as the primary reference, supported by three additional stations. Based on a planned roof catchment area of 53.25 m², the calculated runoff discharge is 0.00013 m³/s, indicating that rainwater has considerable potential to serve as an alternative water source. The quality of rainwater shows that parameters such as temperature, dissolved oxygen (DO), chemical oxygen demand (COD), biochemical oxygen demand (BOD), turbidity, iron (Fe), and manganese (Mn) comply with the water quality standards set by the Regulation of the Minister of Health No. 2 of 2023 and Government Regulation No. 22 of 2021. However, the rainwater exhibits an acidic pH (4.14 ± 0.53) and elevated Escherichia coli levels (34.03 ± 41.86 MPN/100 mL), which exceed permissible limits and require treatment prior to use. The selection of suitable treatment technologies was conducted using the Simple Additive Weighting (SAW) method. The analysis showed that sand–calcite filtration system combined with chlorination as the most effective option, achieving a score of 95.90. This system is recommended for non-potable applications, specifically for toilet flushing, with an estimated water demand of 4.93 m³ and a ground tank capacity of 5 m³. The total estimated cost of the proposed RWHS is approximately IDR 26,258,000. Keyword: rainwater, rainwater quality, Log Pearson Type III, Simple Additive Weighting, Rainwater Harvesting System
Co-Authors Agus Jatnika Agus Jatnika Effendi Aldho Pramana Putra Alya Sausan Nabila Anak Agung Istri Sri Wiadnyani Ananda, Dimas Rizki Andika Putra, Syawal Arif Satria, Muhammad Ash Shalih, Shubhiy Dawne Ayesha Rizal, Pinkan Dzakiyyah, Nadiyah Ermaliza, Wina Ermaningsih Fadil Ikhsan Anugrah Fitria, Irna Rosa Harian, Dedi Izraini Islamiati Putri Jingga, Rara Purnama Leni Leni Mardatillah, Regina Mhd. Fauzi Munawir Muluk. Z N. Nurhamidah Primasari, Budhi Primasari, Budhi Puti Sri Komala Putri, Widia Regia, Rinda Andhita Resti Rahayu Ridwan Ridwan Ridwan Ridwan, Ridwan Rinanda, Bismi Lyra Salsabila, Srideva Saputri Sihombing, Wildani Septia Emida Shinta Indah Shinta Indah Siska Elvandari Sri Komala, Puti Syawal Andika P. Tivany Edwin UJANG KHAIRUL Uttiya Annisa D Viviani, Amalia Wildani S. Sihombing Wina Ermaliza Wina Ermaliza Yeggi Darnas Yenni Ruslinda Zulkarnaini Zulkarnaini