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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.
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.
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

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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.
Improving Water Supply Systems’ Resilience Variables Using The Fuzzy Delphi Method (FDM) R Hari Yuliandra; Nurhamidah Nurhamidah; Puti Sri Komala; Vera Surtia Bachtiar
Dampak Vol. 23 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.23.1.88-102.2026

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This study examines the resilience variables of urban Drinking Water Supply Systems (WSS) in responding to floods, with a focus on West Sumatra Province, Indonesia, using the Fuzzy Delphi Method (FDM). The study identifies three main resilience properties: robustness, recovery, and learning, within a temporal framework. Thirteen sub-properties and 41 indicators were validated using FDM by 10 experts in fields relevant to the research topic. As a result, 12 sub-properties were accepted by expert consensus, while one sub-property, namely governmental situation awareness, was rejected because all three of its indicators failed to meet the validation criteria. A total of 33 out of 41 indicators were considered significant, relevant, and useful by the expert panel. Furthermore, the findings emphasize the critical role of the governmental dimension in determining the resilience level of SPAM in West Sumatra Province. These results will serve as a guide for policymakers in prioritizing resilience-based decisions to mitigate flood threats.
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

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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
Comparison of bioconcentration factor of heavy metals between endemic fish and aquacultured fish in Maninjau Lake, West Sumatra, Indonesia Puti Sri Komala; Restu Maulida Azhari; Febi Yulia Hapsari; Tivany Edwin; Taufiq Ihsan; Zulkarnaini Zulkarnaini; Mustika Harefa
Biodiversitas Journal of Biological Diversity Vol. 23 No. 8 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230821

Abstract

Abstract. Komala PS, Azhari RM, Hapsari FY, Edwin T, Ihsan T, Zulkarnaini, Harefa M. 2022. Comparison of bioconcentration factor of heavy metals between endemic fish and aquacultured fish in Maninjau Lake, West Sumatra, Indonesia. Biodiversitas 23: 4026-4032. Fish have a high risk of accumulating metals and poses a risk of entering human bodies through the food chain. This study aims to analyze the concentration of lead (Pb), mercury (Hg), and cadmium (Cd) spatially and temporally as well as the Bioconcentration Factor (BCF) in endemic fish (Rasbora argyrotaenia) and aquacultured fish (Oreochromis niloticus) in Maninjau Lake and its relationship to environmental parameters (pH, DO and temperature). Sampling was conducted at domestic, hydropower, fish cage, and endemic fisheries. Spatial and temporal distribution using one-way ANOVA with 95% significance, while parameter correlation using linear regression. Almost all heavy metals in both fish samples exceeded the permissible level except in endemic fisheries sites. Metal concentrations in both fish species spatially showed a significant difference, while temporally showed no significant difference. Rasbora argyrotaenia showed a slightly higher BCF value than O.niloticus. The BCF values were low accumulative with order Pb&gt;Hg&gt;Cd ??in R. argyrotaenia and Pb&gt;Cd&gt;Hg for O. niloticus. There is a strong and positive correlation between temperature and the BCF value of both fish species for the three different metals. Monitoring fish by keeping metal content within acceptable limits is necessary. Further research on risk analysis of fish consumption in humans is recommended.
Shell size distributions, land use, and water quality relationships of a freshwater apple snail Pomacea canaliculata (Lamarck, 1822) in Maninjau Lake, West Sumatra, Indonesia NOVERITA DIAN TAKARINA; TRI RETNANINGSIH SOEPROBOWATI; PUTI SRI KOMALA; LUKI SUBEHI; MARTHA WOJEWÓDKA-PRZYBYŁ; DJABANG NURDIN
Biodiversitas Journal of Biological Diversity Vol. 24 No. 10 (2023)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d241029

Abstract

Abstract. Takarina ND, Soeprobowati TR, Komala PS, Subehi L, Wojewódka-Przyby? M, Nurdin D. 2023. Shell size distributions, land use, and water quality relationships of a freshwater apple snail Pomacea canaliculata (Lamarck, 1822) in Maninjau Lake, West Sumatra, Indonesia. Biodiversitas 24: 5478-5484. The freshwater apple snail, Pomacea canaliculata (Lamarck, 1822), is a common mollusk in lake ecosystems, including Maninjau Lake, West Sumatra. Despite its presence in Maninjau Lake, the information about its shell size, land use, and water quality variable relationships is very limited. This paper aims to study how the land use surrounding the lake and water quality variables can affect the shell size distributions of P. canaliculata. The samples were collected from several locations representing the varieties of land uses, including settlements, paddy fields, forest covers, and river mouths, along with water quality variables. Statistical analysis was done using ANOVA and validated by Tukey's post hoc test to analyze differences among locations. Pearson’s correlation test was used to analyze the relationship between shell size and water quality variables. The results show that the differences in land use and water quality variables affected the variations of shell length (P &lt; 0.05, F = 4.925) and width (P&lt; 0.05, F = 12.369) of P. canaliculata. The average shell length was 2.709 cm and 2.022 cm for the width. The large shell size was observed in settlement land uses (P&lt; 0.05), and the small shell was observed in forest and paddy field land uses (P&lt; 0.05). The water near settlement land uses was characterized by high temperatures, while colder water was observed in forest and paddy field land uses. Pearson’s test confirms that increases in shell length and width were correlated with increases in temperature and dissolved oxygen.
Phytoplankton community response to seasonal eutrophication in Maninjau Lake, West Sumatra, Indonesia PUTI SRI KOMALA; TRI RETNANINGSIH SOEPROBOWATI; NOVERITA DIAN TAKARINA; LUKI SUBEHI; MARTA WOJEWODKA‑PRZYBYL; BUDHI PRIMASARI; TIVANY EDWIN; LIA ARLINA; REGINA MARDATILLAH
Biodiversitas Journal of Biological Diversity Vol. 27 No. 2 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270232

Abstract

Abstract. Komala PS, Soeprobowati TR, Takarina ND, Subehi L, Wojewodka‑Przybyl M, Primasari B, Edwin T, Arlina L, Mardatillah R. 2026. Phytoplankton community response to seasonal eutrophication in Maninjau Lake, West Sumatra, Indonesia. Biodiversitas 27 (2): d270232. https://doi.org/10.13057/biodiv/d270232. The aim of this study is to analyze the seasonal trophic status of Maninjau Lake using the Comprehensive Trophic Status Index (CTSI) and to examine its spatial and temporal relationship with the phytoplankton community structure. The water and phytoplankton samples were collected from 10 sampling points in accordance with SNI 6989-57-2008 and the ecological protocol. Results show that CTSI values ranged from 62.59 to 73.28, indicating eutrophic to hypereutrophic conditions. The trophic sub-indices showed TSI-TP values of 53.24-82.20, TSI-TN values of 50.97-61.49, and TSI-Chl-a values of 52.98-62.07. Based on spatial analysis, the trophic status is relatively homogeneous across all sampling locations, indicating widespread nutrient loading in the lake. On the other hand, higher CTSI values during the rainy season and temporal variation of CTSI are significant. The increase in CTSI was associated with a change in phytoplankton dominance from Bacillariophyceae under eutrophic conditions to Cyanophyceae under hypereutrophic conditions, reflecting tolerance to increased nutrient concentrations. The hypereutrophic status of Maninjau Lake favored opportunistic taxa, as indicated by an increase in the dominance index and decreases in diversity and evenness. Rainfall contributes to shaping phytoplankton community dynamics, affecting the trophic status of the lake. This study highlights that integrating CTSI, phytoplankton ecological indices, and rainfall variability provides a useful framework for assessing air quality degradation and ecosystem stability in tropical lakes.
Co-Authors AA Sudharmawan, AA Adetya, Ashifa Agus Jatnika Effendi Aldho Pramana Putra 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 DJABANG NURDIN Dura Vendela Ermaningsih Fadil Ikhsan Anugrah Fadjar Goembira Farida Hannum Nasution Fauzia Arionanda Febi Yulia Hapsari Fenisa Fauziyah Marshal Fitra Ramadhani Fitria, Irna Rosa I Gede Wenten Ida Ayu Putu Sri Widnyani Iing Surya Marlis Juwita Zurienra Leni Leni LIA ARLINA LUKI SUBEHI LUKI SUBEHI M Zulfan Mardatillah, Regina MARTA WOJEWODKA‑PRZYBYL MARTHA WOJEWÓDKA-PRZYBYŁ Mas Mera Mawarda, Panji Cahya Mia Miranti Rustama Mustika Harefa Nabila, Alya Sausan Nadia Tripermata Dewi Nelda Murti - Neni Sintawardani Nicolaus Nezha Nunez Mahasti Nino Perdana Putra NOVERITA DIAN TAKARINA NOVERITA DIAN TAKARINA Nur, Ansiha Nur, Ansiha Nurhamidah, Nurhamidah Primasari, Budhi Purnama Mentari Dewi Purnama Mentari Dewi Putra, Alqadri Asri Putra, Randi Permana Putri, Widia R Hari Yuliandra Rati Yuliar Ningsih Regia, Rinda Andhita Regina Mardatillah Restu Maulida Azhari Ridwan Ridwan Ridwan Ridwan, Ridwan Rina Andriyani Rinanda, Bismi Lyra Rizki Aziz Roselyn Indah Kurniati Salmariza Sy - Sembiring, Tarzan Septia Emida Shinta Indah Silvia, Shinta Slamet Raharjo Suarni S Abuzar Suarni S. Abuzar Suarni Saidi Abuzar Suarni Saidi Abuzar Suci Handayani Suci Wulandari Syawal Andika P. Syawal Andika Putra Syukur, Adyana Taufiq Ihsan Tivany Edwin Tomi Wirawan Tomi Wirawan TRI RETNANINGSIH SOEPROBOWATI TRI RETNANINGSIH SOEPROBOWATI Uttiya Annisa D Vera Surtia Bachtiar Wahyu Tanaka Widyarani Widyarani Widyarani, Widyarani Wildani S. Sihombing Wildani Saputri Sihombing Wisjnuprapto, Wisjnuprapto Yenni Ruslinda Yommi Dewilda Yuda Maisuara Zikra Zikra Zilvia Wulandari Zilvia Wulandari Zulkarnaini Zulkarnaini Zulkarnaini Zulkarnaini