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Ervin Nurhayati
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Department of Environmental Engineering, ITS Campuss, Sukolilo, Surabaya, Indonesia
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INDONESIA
Jurnal Purifikasi
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 14113465     EISSN : 25983806     DOI : -
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Environmental Science
Jurnal Purifikasi was published since January 2000 by Division of Journal Purifikasi Department of Environmental Engineering-Faculty of Civil, Environment and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya in collaboration with the Association of Indonesian Sanitary and Environmental Techniques (IATPI) East Java. Jurnal Purifikasi is published twice a year in July and December, covers topics on technology and management related to environmental engineering field.
Arjuna Subject : -
Articles 395 Documents
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ANALISIS JEJAK KARBON PENGOLAHAN LIMBAH AIR SKALA PERKOTAAN DENGAN PENDEKATAN LIFE CYCLE ASSESSMENT (STUDI KASUS: IPAL X, JAKARTA SELATAN) Ladiajanuarygusdi, Ayu Ramadhona; Syafila, Mindriany
Purifikasi Vol 24 No 2 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i2.498

Abstract

An increase in population often leads to a surge in the volume of wastewater that must be treated. Wastewater treatment plants (WWTPs) play a role in reducing environmental pollution caused by discharging wastewater into bodies of water. However, WWTPs are also a major source of greenhouse gas emissions, including carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O). This study aims to evaluate the carbon footprint generated by treating 1 m³ of domestic wastewater at the IPAL X unit. The Life Cycle Assessment (LCA) approach with gate-to-gate system limitations was used. Data processing was done with the help of the OpenLCA software program. According to the LCA analysis results, the Moving Bed Biofilm Reactor (MBBR), Filtration, and Equalization Tank units produces the highest carbon footprint. The sourced of carbon footprint from electricity consumption and degrading organic compounds through biological treatment in MBBR unit.
EVALUASI TEKNIS KEHILANGAN AIR MINUM DI PERUMDAM KOTA MAGELANG: STUDI KASUS PADA DISTRICT METERED AREA (DMA) PERUM KORPRI Pratama, Ekadhana Chana; Nurhayati, Ervin; Hastuti, Dian Suci
Purifikasi Vol 24 No 2 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i2.507

Abstract

The high level of non-revenue water (NRW) poses a significant challenge in managing the water supply system of Perumdam Kota Magelang, especially in the Perum Korpri District Metered Area (DMA), which recorded a 56.16% loss from a total annual input volume of 171,770 m³. This study aims to evaluate the technical aspects of water loss and formulate NRW reduction strategies based on Internet of Things (IoT) technology. The methods include the collection of primary and secondary data, water balance analysis using WB-Easy Calc, and hydraulic network simulation through EPANET 2.2. The evaluation focuses on network pressure, consumption fluctuations, and meter accuracy. The results indicate that high pressure during minimum demand hours significantly contributes to physical leakage. Proposed mitigation strategies include the implementation of step-test, installation of Pressure Reducing Valves (PRVs), calibration of district inlet meter, and the application of an IoT-based SCADA system for real-time monitoring. The integration of these technologies is expected to enhance operational efficiency and extend the lifespan of the water distribution network.
THE CONDITIONS OF SCHEDULED FECAL SLUDGE SERVICE IN KENDARI CITY, SOUTHEAST SULAWESI Degani, Muhammad; Nurhayati, Ervin
Purifikasi Vol 24 No 2 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i2.508

Abstract

Pelaksanaan Layanan Lumpur Tinja Terjadwal masih memiliki tantangan tersendiri. Hal ini disebabkan oleh kondisi pengelolaan sampah di Kota Kendari. Tujuan dari penelitian ini adalah untuk mengetahui kondisi eksisting, pengetahuan, dan minat masyarakat terhadap layanan lumpur tinja. Data kualitatif dikumpulkan dari wawancara dengan pemangku kepentingan, survei kuesioner sampel acak, kemudian dianalisis menggunakan perangkat lunak WEKA 3.9.8, evaluasi teknis dan manajemen menggunakan diagram alir tinja, dan Penyelenggaraan Layanan Sanitasi Kota (PPKS) adalah metode yang digunakan untuk mengumpulkan data dan merumuskan kesimpulan secara komprehensif. Hasil penelitian menunjukkan bahwa rendahnya cakupan layanan (0,004%) dari total penduduk terjadi karena kewajiban berlangganan program hanya dilakukan dalam lingkup Organisasi Pemerintah Daerah, sehingga masyarakat tidak mendapatkan informasi yang jelas terkait program ini. Kesiapan pelaksanaan layanan sejauh ini hanya 63%. Analisis kuesioner oleh WEKA 3.9.8 menunjukkan kurangnya sosialisasi menjadi isu utama rendahnya cakupan layanan. 82,6% tidak mengetahui tentang program L2T2, dan hanya 17,4% yang mengetahuinya. 74,1% masyarakat belum menerima informasi mengenai layanan lumpur tinja, meskipun 72,1% masyarakat tertarik dengan program ini. Diagram Alir Lumpur Tinja menunjukkan bahwa hanya 6% layanan yang termasuk dalam kategori aman, sejalan dengan Penyediaan Layanan Sanitasi Kota, yang menunjukkan bahwa peningkatan sistem pendataan, inklusi layanan, dan penguatan kerangka kelembagaan sangat mendesak untuk mencapai keberlanjutan program ini.
PERBANDINGAN LAJU PERTUMBUHAN PADA PROPAGASI TANAMAN REVEGETASI TAMBANG GAMPING MENGGUNAKAN MEDIA TANAM KOMERSIAL DAN TANAH GAMPING Giansiswi, Probowati Isworo; Titah, Harmin Sulistyaning
Purifikasi Vol 24 No 2 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i2.520

Abstract

Revegetation efforts on former limestone mine sites offer potential for climate change mitigation through biological CO2 absorption. However, the extreme conditions at these mining locations necessitate the validation of planting media to ensure the success of initial plant propagation. This study aimed to compare the effectiveness of commercial growth medium and limestone soil sourced from the Berkah Sari Bumi Rembang mine site as the initiation media for the early growth of revegetation plants, specifically utilizing maize (Zea mays L.) and groundnut (Arachis hypogaea L.) as test species. Generative propagation was conducted in a greenhouse for 30 days, involving physical observation and plant height measurement every 7 days. The primary parameter observed was plant height, assessed using the relative growth rate (RGR). The results showed a significant difference in growth rates between the plants grown in the two media. In the commercial growth medium, all maize and groundnut plants survived until the end of the propagation period with significant growth; the highest plant height was recorded by the BISI-2 maize variety at 51.4 cm on Day 30, with the best growth rate of 0.11 cm/week during the 14-21day period. Conversely, the limestone soil exhibited very slow growth. Most plants died before the propagation period was complete, and the only surviving plant was the BISI-2 maize variety, reaching a maximum height of only 5.5 cm on Day 14. The commercial growth medium is the recommended choice for propagation due to its sufficient nutrient content and good water retention ability, making it ideal for preparing optimal plants before they are transferred for the main study on limestone soil.
UTILIZATION OF NON-HAZARDOUS SECONDARY SLUDGE FROM BEVERAGE INDUSTRY WWTP AS A COMPOST SUBSTITUTE IN PLANTING MEDIA Mahendra, Bara; Warmadewanthi, I D A A; Nurhayati, Ervin; Bagastyo, Arseto Yekti
Purifikasi Vol 24 No 2 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i2.521

Abstract

Secondary sludge generated from aerobic biological treatment in beverage industry wastewater plants is produced in large quantities and contains essential nutrients that offer potential for beneficial reuse. This study evaluates the utilization of non-hazardous secondary sludge as planting media by characterizing sludge properties and assessing its performance when mixed with three different type of soils (Soil A, B, and C) and amendments. Sludge cake was blended with each soil type as a control, and further treatments incorporated (a) dolomite, (b) Trichoderma sp., and (c) a combination of both amendments. The mixtures were monitored over two weeks for C/N ratio and N, P, K content, following compost quality parameters. Results indicate that most mixtures achieved a C/N ratio ≥10 after two weeks, except for Soil A with and without dolomite. All treatments exceeded the minimum compost nutrient requirements set by SNI 19-7030-2004. The application of Trichoderma sp. produced the highest nutrient enhancement, with nitrogen reaching 1.8% and phosphorus reaching 4.0% in sludge–Soil C mixtures, while potassium peaked at 0.4% in sludge–Soil B with Trichoderma sp. These findings confirm that secondary sludge from beverage industry WWTPs can be processed into viable planting media or compost substitutes, supporting sustainable sludge management and circular economy practices.
THE EFFECT OF FLOW RATE AND RESIDENCE TIME IN A BAFFLED ANAEROBIC REACTOR ON AMMONIA REDUCTIONIN SLAUGHTERHOUSES Dian - Safitri; Hery Setyobudiarso; Candra Dwiratna Wulandari
Purifikasi Vol 25 No 1 (2026): Journal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i1.524

Abstract

Slaughterhouse wastewater contains high concentrations of ammonia due to the degradation of organic compounds, which has the potential to cause environmental pollution if not properly treated. This study aims to analyze the effect of variations in flow rate and hydraulic residence time on the performance of an Anaerobic Baffled Reactor (ABR) in reducing ammonia concentrations in slaughterhouse wastewater. The study was conducted experimentally using a laboratory-scale Anaerobic Baffled Reactor (ABR) reactor measuring 85 cm x 40 cm x 30 cm with five compartments. The reactor was operated continuously at two flow rate variations, namely 34 L/hour and 38 L hour, and two residence time variations, namely 6 hours and 12 hours. The main parameter analyzed was the ammonia (NH3-N) concentration. The results showed that the flow rate and residence time had a significant effect on the efficiency of ammonia reduction. At a flow rate of 34 L/hour, the ammonia reduction efficiency was 55% at a residence time of 6 hours and increased to 70% at a residence time of 12 hours. Meanwhile, at a flow rate of 38 L/hour, the ammonia reduction efficiency was 48% at a residence time of 6 hours and increased to 67% at a residence time of 12 hours. The most effective operational conditions were obtained at a flow rate of 34 L/hourwith a residence time of 12 hours, which resulted in an ammonia concentration in the effluent of 22 mg N/L and met quality standards. These results indicate that the ABR reactor has the potential to be applied as an effective slaughterhouse liquid waste treatment technology with optimal flow rate and residence time settings.
UTILIZATION OF Moringa oleifera SEEDS AS A NATURAL COAGULANT IN REDUCING TOTAL COLIFORM BACTERIA AND Escherichia coli (E. coli) IN ANIMAL SLAUGHTERHOUSE WASTEWATER Nurhidayah Nurhidayah; Candra Dwi Ratna; Hery Setyobudiarso
Purifikasi Vol 25 No 1 (2026): Journal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i1.527

Abstract

Livestock slaughterhouse wastewater has the potential to pollute the environment because it contains pathogenic bacteria, especially Escherichia coli and total coliform, which are indicators of fecal contamination. This study aims to analyze the effect of varying doses of natural coagulant from moringa seeds (Moringa oleifera) on the reduction of E. coli and total coliform in RPH wastewater with a settling time of 40 minutes. The method used was coagulation-flocculation with varying coagulant doses of 150 gr, 200 gr, and 250 gr, followed by a sedimentation process. Microbiological analysis was conducted to determine the number of E. coli and total coliform bacteria, with each treatment repeated three times. The results showed that increasing the dose of moringa seed coagulant affected the reduction in the number of bacteria. For the total coliform parameter, the number of bacteria decreased from 11,500 MPN/mL at a dose of 150 gr to 6,100 MPN/mL at a dose of 250 gr. Meanwhile, the number of E. coli decreased from 3,100 CFU/mL to 1,550 CFU/mL at the same dose. These results indicate that moringa seeds have the potential to be used as an effective, simple, and environmentally friendly natural coagulant in reducing pathogenic bacterial contamination in slaughterhouse wastewater.
ANALYSIS OF THE DESIGN OF A TUBE PHOTOBIOREACTOR FOR CARBON CAPTURE OF EXHAUST GAS IN SINGLE-CYLINDER ENGINE VEHICLES USING MICROALGAE Czarthrya Indra Prastha; Boni Sena; Farradina Choria Suci; Hendra Nur Arifin
Purifikasi Vol 25 No 1 (2026): Journal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i1.529

Abstract

The increase in carbon dioxide (CO₂) emissions from transportation significantly contributes to global warming, necessitating innovative carbon capture solutions. This study aims to analyze the exhaust gas characteristics of a single-cylinder Otto cycle engine as a basis for designing a tubular photobioreactor for carbon capture using microalgae. The research method involves stoichiometric analysis of octane (C₈H₁₈) combustion, thermodynamic calculations of exhaust gas flow rate, and mathematical modeling of photobioreactor design parameters, including volume, illumination surface area, hydraulic retention time (HRT), Reynolds number, and CO₂ mass transfer rate. The stoichiometric combustion analysis shows that 1 mol of C₈H₁₈ produces 8 mol of CO₂, which theoretically can be fully utilized in the photosynthesis process to generate 8 mol of biomass (CH₂O). The designed tubular photobioreactor has a total volume of 3.33 liters, an illumination surface area of 0.21 m², and an HRT of 300 seconds under a flow rate of 0.67 L/min. The Reynolds number of 392 indicates laminar flow conditions, with a CO₂ transfer capacity of approximately 10.5 g/hour. These results demonstrate the potential integration of internal combustion engine exhaust gas with a tubular photobioreactor system as a small-scale carbon capture approach.
ANALYSIS OF MICROALGAE CARBON CAPTURE IN EXHAUST GAS FROM A SINGLE CYLINDER ENGINE IN A FLAT PANEL MODEL DESIGN Muhammad Ersa Abdullah; Boni Sena; Hendra Nur Arifin; Novela Thresia Pandiangan
Purifikasi Vol 25 No 1 (2026): Journal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i1.531

Abstract

Carbon dioxide (CO₂) emissions from gasoline engines are one of the contributors to greenhouse gases in the atmosphere. Single-cylinder gasoline engines widely used in motorcycles produce exhaust gases containing CO₂ which has the potential to be used as a carbon source for microalgae. This study aims to analyze the potential for CO₂ absorption from single-cylinder gasoline engine exhaust gases using microalgae in a flat-panel photobioreactor through a mathematical modeling approach. The research method was carried out by determining engine parameters and microalgae kinetic parameters based on literature studies, then calculating exhaust gases and modeling CO₂ absorption using a mass balance, gas-liquid mass transfer, and the Monod model of microalgae growth kinetics. The calculation results show that the engine produces a CO₂ mass rate of approximately 1.545 × 10⁻³ kg/s. The analysis results indicate that microalgae have the potential to utilize CO₂ as a carbon source for biomass growth in a photobioreactor system.
PERFORMANCE OF BIOFILTER AND WATER HYACINTH PHYTOREMEDIATION FOR LEACHATE TREATMENT Sugito Sugito; Risa Aulia Divanda Rahmadani; Sitti Adiyaksa Fazrian
Purifikasi Vol 25 No 1 (2026): Journal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i1.532

Abstract

Leachate is a significant pollutant source with the potential to cause environmental damage, particularly through soil infiltration that degrades groundwater quality. This study evaluates a treatment method combining aerobic biofilters and phytoremediation to reduce pollutant levels in leachate from the Ngipik Landfill, Gresik Regency. The treatment utilized biofilters with varying media—bioballs, plastic straws, and oyster shells—integrated with phytoremediation using water hyacinth (Eichhornia crassipes) in a continuous downflow system with a 24-hour retention time. Sampling was conducted from day 0 to day 3. Analysis followed standard procedures: SNI 6989.72:2009 for BOD, SM APHA 24th Ed. 2540 D (2023) for TSS, and SM APHA 24th Ed. 3112 B (2023) for Hg. The results indicate that this combined method effectively reduces pollutants, achieving maximum reduction efficiencies of 83% for BOD (bioball media), 94% for TSS (plastic straw media), and 93% for Hg across all media types.

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