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All Journal Jurnal Teknologi Lingkungan Universitas Trisakti Reaktor Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan Bionatura CIVED (Journal of Civil Engineering and Vocational Education) Jurnal Reka Lingkungan JURNAL TEKNOLOGI LINGKUNGAN Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Riset Kimia Jurnal Dampak Indonesian Journal of Biotechnology Jurnal Penelitian Pendidikan IPA (JPPIPA) ALCHEMY Jurnal Penelitian Kimia Jukung (Jurnal Teknik Lingkungan) IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Purifikasi Jurnal Serambi Engineering JURNAL REKAYASA Makara Journal of Science Journal Serambi Engineering (JSE) Journal of Civil Engineering and Vocational Education
Puti Sri Komala
Departemen Teknik Lingkungan Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Public Health Transportation

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Kemampuan Filter Biochar Susunan Seri dalam Menyisihkan Detergen dan Fosfat dari Air Limbah Tivany Edwin; Puti Sri Komala; Budhi Primasari; Zulkarnaini Zulkarnaini; Farida Hannum Nasution; Fauzia Arionanda
Jurnal Ilmu Lingkungan Vol 23, No 5 (2025): September 2025
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.23.5.1237-1242

Abstract

Penelitian ini bertujuan untuk mengevaluasi potensi filter biochar susunan seri dalam menyisihkan detergen dan fosfat dari air limbah artifisial. Filter yang digunakan terdiri atas media biochar dan busa poliuretan dengan perbandingan volume 2:1, disusun dalam dua kolom seri masing-masing setebal 40 cm. Proses filtrasi berlangsung selama 14 hari, dengan konsentrasi awal detergen sebesar 0,701 mg/L dan fosfat sebesar 1,303 mg/L. Hasil penelitian menunjukkan bahwa konsentrasi detergen pada efluen kolom seri 1 dan 2 masing-masing berkisar 0,21-0,43 mg/L dan 0,19–0,33 mg/L, dengan efisiensi penyisihan 39–70% dan 53–72%. Sementara itu, konsentrasi fosfat pada efluen kolom seri 1 berkisar 0,33–0,84 mg/L dengan efisiensi 35–74%, dan pada kolom seri 2 sebesar 0,14–0,66 mg/L dengan efisiensi 49–89%. Penyisihan yang lebih tinggi setelah melewati kolom seri 2 menunjukkan bahwa waktu retensi aliran berperan penting dalam meningkatkan efisiensi penyisihan kontaminan. Secara keseluruhan, penelitian ini menegaskan bahwa filter berbasis biochar berpotensi sebagai media ramah lingkungan untuk pengolahan air limbah yang mengandung detergen dan fosfat.
Biocatalytic Performance and Dosage-Dependent Behavior of Fruit Peel–Derived Eco-Enzymes in Organic Matter Removal from Simulated Lake Water Pramana Putra, Aldho; Komala, Puti Sri; Nur, Ansiha
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 = 262.348; p < 0.05) and significant differences for BOD removal (F = 7.410; p < 0.05). Furthermore, first-order kinetic analysis revealed that the 5% dosage produced the highest reaction rate constants, with the papaya-based eco-enzyme achieving k values of 0.105 day⁻¹ for COD and 0.114 day⁻¹ for BOD, indicating faster organic matter degradation compared to other treatments. In contrast, higher dosages (10% and 15%) resulted in negative removal efficiencies, reflecting process inhibition due to excessive organic loading and preventing valid 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.
Performance of Membrane Bioreactor in Nitrogen Removal using Anammox Bacteria Cultivated from Lake Koto Baru Zulkarnaini, Zulkarnaini; Amanda, Tiffany Azhra; Putra, Alqadri Asri; Komala, Puti Sri; Nilawati, Dewi; Widyarani, Widyarani; Sembiring, Tarzan; Mawarda, Panji Cahya; Septevani, Athanasia Amanda; Rustama, Mia Miranti; Andriyani, Rina
Makara Journal of Science Vol. 30, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Anaerobic ammonium oxidation (anammox) is the biological conversion of ammonium to nitrogen gas (N2) using nitrite as an electron acceptor. This study evaluated the performance of a membrane bioreactor (MBR) in nitrogen removal at room temperature using Candidatus Brocadia fulgida, an anammox bacterium previously cultivated from Lake Koto Baru, Tanah Datar, Indonesia. The MBR was operated for 48 days with a hydraulic retention time of 24 h under a continuous supply of ammonium and nitrite, with both substrates provided at influent concentrations of 70, 150, and 250 mg-N/L. Samples were collected twice a week and analyzed via UV–Vis spectrophotometry. The stoichiometric ratios of ∆NO2−-N/∆NH4+-N and ∆NO3−-N/∆NH4+-N were 1.13 and 0.15, respectively, which were consistent with the anammox reaction. The maximum nitrogen removal performance, including nitrogen removal rate, ammonium conversion efficiency, and nitrogen removal efficiency (NRE), reached 0.515 kg-N/m³∙d, 92.76%, and 91.27%, respectively, at a nitrogen loading rate of 0.566 kg-N/m³∙d. Anammox bacteria from Koto Baru Lake showed high NRE at room temperature using MBR.
Composition of Environmental Parameters in Aquatic Sediments in West Sumatra Suci Handayani; Zulkarnaini Zulkarnaini; Puti Sri Komala
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.7579

Abstract

This study aims to identify the factors influencing environmental parameters in water and sediment and evaluate their impacts on ecosystems and biota, thereby providing a scientific basis for effective and sustainable water resource management. Measurements were conducted at 10 natural ecosystem locations comprising rivers, beaches, estuaries, and lakes in West Sumatra. The parameters measured in the water were temperature, pH, DO, and salinity, while in the sediment, pH, TOC, ammonium, nitrate, nitrite, phosphate, and sulfate were measured. The results of the environmental parameter analysis in the water were Temperature (26.3 ± 0.65°C), pH (7.62 ± 0.43), DO (4.5 ± 0.81 mg/L), and Salinity (13.78 ± 13.95 ppt). In the sediment, the results were pH (6.74 ± 0.86), TOC (1.49 ± 0.29%), Ammonium (12.95 ± 5.34 mg/L), Nitrite (76.33 ± 34.26 mg/L), Nitrate (31.60 ± 5.25 mg/L), Phosphate (29.5 ± 20.37 mg/L), and Sulfate (29.46 ± 8.23 mg/L). Overall, the factors affecting water and sediment parameters are biological activity, land input, and anthropogenic contaminants. The ability of sediment to accumulate and absorb particles and chemicals is one of the factors causing the high concentration of environmental parameters in sediment
Recovery Nutrien dari Efluen Digester Anaerobik Air Limbah Tahu dengan Presipitasi Struvite Zulkarnaini Zulkarnaini; Fenisa Fauziyah Marshal; Puti Sri Komala; Aufa Aniq Rumzi; Dewi Nilawati; Widyarani Widyarani; Diana Rahayuning Wulan; Neni Sintawardani; Nicolaus Nezha Nunez Mahasti
ALCHEMY Jurnal Penelitian Kimia Vol 21, No 2 (2025): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.21.2.93205.198-223

Abstract

Efluen dari digester anaerobik multistages fixed-bed reactor pengolahan air limbah industri tahu di Desa Giriharja, Kabupaten Sumedang, memerlukan pengolahan lanjut karena masih mengandung nutrien amonium dan fosfor yang melebihi standar baku mutu untuk badan air. Presipitasi struvite merupakan presipitasi kimia yang memungkinkan untuk memperoleh kembali (recovery) amonium dan fosfat dari air limbah dengan cara penambahan magnesium. Air laut dapat digunakan sebagai sumber magnesium untuk proses presipitasi untuk mengurangi biaya operasional. Presipitasi struvite dipengaruhi oleh pH, ion-ion penting, suhu, dan zat-zat asing. Nilai pH yang tinggi dapat meningkatkan efisiensi penyisihan dan recovery P dan N, akan tetapi dapat meningkatkan presipitasi magnesium dan kalsium fosfat sehingga mengurangi kualitas kristal struvite yang terbentuk. Tingkat kejenuhan struvite berbanding lurus dengan logaritma konsentrasi ionik dalam kristal. Tingkat pertumbuhan, jenis dan ukuran kristal dipengaruhi oleh tinggi suhu. Tingginya konsentrasi zat asing pada larutan dapat mengakibatkan terhalangnya pertumbuhan kristal struvite. Penggunaan air laut sebagai sumber magnesium dalam presipitasi struvite dapat mengurangi biaya produksi, transportasi, serta menggantikan penggunaan bahan kimia.Nutrient Recovery from Tofu Wastewater Anaerobic Digester using Struvite Precipitation. Effluent from a multistage anaerobic digestion fixed-bed reactor for tofu industrial wastewater treatment in Giriharja Village, Sumedang Regency, requires further treatment because it still contains nutrients of ammonium and phosphorus that exceed the water quality standards. Struvite precipitation is a chemical precipitation process that allows for the recovery of ammonium and phosphate from wastewater by adding magnesium. Seawater can be used as a source of magnesium for the precipitation process to reduce operational costs. Struvite precipitation is affected by pH, essential ions, temperature, and foreign substances. A high pH value can increase the efficiency of P and N removal and recovery, but it can also increase the precipitation of magnesium and calcium phosphate, thereby reducing the quality of the struvite crystals formed. The level of struvite saturation is directly proportional to the logarithm of the ionic concentration in the crystals. The growth rate, type, and size of crystals are affected by temperature. High concentrations of foreign substances in the solution can inhibit struvite crystal growth. Using seawater as a source of magnesium in struvite precipitation can reduce production and transportation costs and replace the use of chemicals.
Co-Authors AA Sudharmawan, AA Adetya, Ashifa Agus Jatnika Effendi Alya Sausan Nabila Amanda, Tiffany Azhra Ananthi, Naraina Arief Almi Arlina, Lia Ashifa Adetya Athanasia Amanda Septevani, Athanasia Amanda Aufa Aniq Rumzi Denny Helard Dewi Fitria Dewi Nilawati Dewi Nilawati, Dewi Dewi, Nadia Tripermata Dewi, Purnama Mentari Diana Rahayuning Wulan Dura Vendela Ermaningsih Fadjar Goembira Farida Hannum Nasution Fauzia Arionanda Fenisa Fauziyah Marshal Fitra Ramadhani Fitria, Irna Rosa I Gede Wenten Ida Ayu Putu Sri Widnyani Iing Surya Marlis Juwita Zurienra Leni Leni M Zulfan Mardatillah, Regina Mas Mera Mawarda, Panji Cahya Mia Miranti Rustama Nabila, Alya Sausan Nadia Tripermata Dewi Nelda Murti - Neni Sintawardani Nicolaus Nezha Nunez Mahasti Nino Perdana Putra Nur, Ansiha Nur, Ansiha Nurhamidah Nurhamidah Pramana Putra, Aldho Primasari, Budhi Purnama Mentari Dewi Purnama Mentari Dewi Putra, Alqadri Asri Putra, Randi Permana Putri, Widia Rati Yuliar Ningsih Regia, Rinda Andhita Ridwan Ridwan, Ridwan Rina Andriyani Rinanda, Bismi Lyra Rizki Aziz Roselyn Indah Kurniati Salmariza Sy - Sembiring, Tarzan Shinta Indah Silvia, Shinta Slamet Raharjo Suarni S Abuzar Suarni S. Abuzar Suarni Saidi Abuzar Suarni Saidi Abuzar Suci Handayani Suci Wulandari Syukur, Adyana Tivany Edwin Tomi Wirawan Tomi Wirawan Uttiya Annisa D Vera Surtia Bachtiar Wahyu Tanaka Widyarani Widyarani Widyarani, Widyarani Wisjnuprapto, Wisjnuprapto Yenni Ruslinda Yommi Dewilda Yuda Maisuara Yuliandra, R Hari Zikra Zikra Zilvia Wulandari Zilvia Wulandari Zulkarnaini Zulkarnaini Zulkarnaini Zulkarnaini