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All Journal Bulletin of Electrical Engineering and Informatics Jurnal Dampak Jurnal Sains & Teknologi Lingkungan Journal of Environment and Sustainability Jurnal Purifikasi JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Jurnal Teknologi Lingkungan Lahan Basah Sewagati (Journal of Environmental Sustainability Management)
Ervin Nurhayati, Ervin
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Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Adsorption of Low-Phosphate in Water Using Commercial Fe-based Adsorbents Faris, Salman; Nurhayati, Ervin
Dampak Vol. 22 No. 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.22.2.113-122.2025

Abstract

Phosphate contamination in aquatic environments has become a serious issue due to its role in eutrophication, leading to excessive algal growth and degraded ecosystems. Anthropogenic activities such as agricultural runoff and wastewater discharge significantly increase phosphate concentrations. Among treatment technologies, adsorption using iron-based adsorbents has shown high efficiency, especially at low concentrations. However, performance is influenced by adsorbent type, particle size, and hydrodynamic conditions. This study evaluated the phosphate adsorption performance of Granular Ferric Hydroxide (GFH) and Bayoxide E33 with particle sizes of 74–149 µm, 37–74 µm, and <37 µm. Batch experiments were conducted with 0.3 mg P/L phosphate solution. The isotherm study was performed over 180 minutes, and the kinetics study extended to 240 minutes. Surface morphology was characterized by SEM, and specific surface area was analyzed using BET, which confirmed that smaller particles exhibited higher surface areas. Results showed that GFH <37 µm achieved the highest adsorption capacity of 7.5 mg/g, while Bayoxide <37 µm reached 6.18 mg/g. The Langmuir model best described the isotherm data, and the Pseudo Second-Order model indicated chemisorption as the dominant mechanism. These findings underscore the importance of optimizing particle size to enhance phosphate removal. Keyword: Adsorption, Bayoxide, GFH, Particle Size, Phosphate
Studi Pemanfaatan Idle Capacity Instalasi Pengolahan Lumpur Tinja (IPLT) Keputih Surabaya Nurhayati, Ervin; Arseto Yekti Bagastyo; Cynthia Dyah Puspitasari; Joko Pramono; Fathyah, Fathyah; Rahayu, Dewi Puji; Subechi, Dya Nur Mangzila
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 2 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss2.art6

Abstract

IPLT Keputih, the only fecal sludge treatment plant in Surabaya City, plays a critical role in the city's sanitation infrastructure. Its operation is critical to manage the fecal sludge generated by Surabaya residents, ensuring that the effluent is effectively treated before being safely discharged to the environment. According to previous studies, IPLT Keputih still has significant untapped potential, especially in the Solid Separation Chamber (SSC) and Grease Trap (GT) units, which have idle capacity that can be optimized to improve overall efficiency. The study involved primary and secondary data collection. Primary data was collected through comprehensive field observations and measurements, while secondary data was obtained from relevant agencies. Data analysis showed that IPLT Keputih currently treats an average of 97.71 m3 of septage per day. However, the facility has an idle capacity of 139.89 m3/day, which indicates a great opportunity to improve utilization. The calculation of the existing idle capacity was conducted based on the maximum discharge of sludge entering the IPLT Keputih in 2022. Several scenarios were developed to fully utilize the idle capacity of the SSC and GT units. The scenarios include the optimization of the SSC unit through improved desludging services, the optimization of the SSC and GT through improved non-fecal sludge management services for restaurants, as well as the implementation of a blended approach to improve the overall service of IPLT Keputih.
Analisis kinerja boezem dalam penurunan parameter air limbah: studi kasus Morokrembangan, Surabaya, Indonesia Slamet, Agus; Hartati, Putri Brikke Sukma; Nurhayati, Ervin; Yulikasari, Andriyan
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 8, No 1 (2024)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.8.1.1-12

Abstract

Boezem Morokrembangan has a dual function, i.e. as a flood control and urban wastewater reservoir. This research was conducted in the dry and rainy seasons with a period of 10 days each. Water samples were collected at 5 sampling points with parameter analysis such as COD, DO, pH, TS, TSS, and temperature. The results showed that the boezem water quality was heavily polluted with pollutant concentration exceeding the quality standards of class IV for water bodies. Wastewater characteristics indicated that values tended to be better in the rainy season than the dry season. The pollutant load at the boezem inlet was 2x greater than the pollutant load at the boezem outlet. As a result, the amount of pollutant load that goes into the Boezem Morokrembangan caused the boezem loses its self-purification ability. The performance of reducing wastewater parameters was only able to produce efficiencies of 22.10%, 8.65%, and 19.50% for COD, TS, and TSS parameters, respectively in the rainy season.
STRATEGI PENGENDALIAN NON-REVENUE WATER (NRW) MELALUI PERENCANAAN DMA DAN SCADA BERBASIS IOT DI SPAM IKK BIYONGA Zafira, Athaya Dhiya; Nurhayati, Ervin
Purifikasi Vol 22 No 1 (2023): 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/j25983806.v22.i1.450

Abstract

PDAM (Local Drinking Water Company) Gorontalo Regency is one of many PDAM with a healthy performance rating, but the NRW (Non-Revenue Water) value is still quite high at 32.05% and has not reached FCR (Full Cost Recovery). This happens because of the lack of control over the distribution network, so a strategy that originally used a passive approach must be proactive. Proactive control begins with planning the establishment of a DMA (District Meter Area) which is then designed to become a two-way communication system with sophisticated IoT (Internet of Things)-based sensors to facilitate monitoring and controlling of distribution networks. The formation of DMA is expected to overcome the NRW problem. The service area of SPAM IKK Biyonga, Gorontalo Regency, is planned to form 5 DMAs taking into account the size of the zone, zone boundaries (administrative boundaries, river boundaries, bridges, etc.), customer connections (SR) within the zone, zone elevation, zone piping, and types of consumers within the zone. DMA 1 covers 1.616 SRs with 10 served villages, DMA 2 covers 2.620 SRs with 4 served villages, DMA 3 covers 2.400 SRs with 6 served villages, DMA 4 covers 1.930 SRs with 11 served villages, and DMA 5 covers 2.281 SRs with 12 served villages. There is also a plan to install a certain number of sensor equipment for each DMA, namely: a flow and pressure monitoring system; water quality monitoring sensors; as well as smart water meters. All sensors and tools are integrated into a single unit by the SCADA system at each location which is integrated into a centralized OMC (Operation Management Center).
KARAKTERISASI INFLUEN LUMPUR DI INSTALASI PENGOLAHAN LUMPUR TINJA (IPLT) KEPUTIH SURABAYA Nurhayati, Ervin; Bagastyo, Arseto Yekti; Fathyah, Fathyah; Rahayu, Dewi Puji; Yulikasari, Andriyan
Purifikasi Vol 22 No 2 (2023): 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/j25983806.v22.i2.453

Abstract

Evaluasi unit operasi dan unir proses IPLT Keputih perlu dilakukan, guna menunjang tingkat pelayanan IPLT Keputih. Pengujian karakteristik lumpur yang masuk ke IPLT dilakukan dengan melakukan pengujian di laboratorium terkait parameter pH, BOD, COD, TSS, TVS, TFS, N, P, minyak, lemak serta uji SVI. Sampel yang diambil dari beberapa tempat, yaitu berasal dari non tinja seperti Sentra Wisata Kuliner, Rusunawa, Sentra Pasar Ikan, Fasilitas Kesehatan, Mall dan Restoran. Sedangkan untuk lumpur tinja diambil dari masing-masing unit pengolahan di IPLT Keputih. Berdasarkan karakteristik masing-masing beban pencemar, yaitu berasal lumpur non tinja dan tinja mengindikasikan beban yang cukup besar. Beban lumpur sendiri yang didapatkan dari Rusunawa mengindikasikan bahwa lumpur masih tergolong segar, belum ada degradasi yang terjadi. Hasil penelitian menunjukkan bahwa karakteristik lumpur tinja dari masing-masing unit pengolahan IPLT Keputih masih melebihi baku mutu yang berlaku. Besarnya beban pencemar yang masuk ke IPLT Keputih yang bukan hanya dari lumpur tinja, namun juga lumpur non tinja mengakibatkan beban pengolahan yang tidak sesuai idle capacity unit pengolahan di IPLT Keputih.
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.
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.
Kajian IPAL Rumah Potong Ayam di PT. X Bali: Evaluasi Teknis, Analisis Dampak Lingkungan, dan Perumusan Strategi Pengelolaan Mahendra, Cok Agung Andra; Nurhayati, Ervin
Jurnal Teknologi Lingkungan Lahan Basah Vol 14, No 1 (2026): January 2026
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v14i1.95978

Abstract

PT. X Bali is a chicken-slaughtering industry in Tabanan Regency, Bali, and has been operating since 2008. The production process in this industry requires large amounts of air for washing, which ultimately produces liquid waste. The liquid waste produced has the potential to pollute the environment. This study aims to activate the liquid waste processing unit at PT's Wastewater Treatment Plant (IPAL). X Bali, analyze the impact on the environment, and develop a management strategy. The study was conducted by collecting data from the source of liquid waste production, including the amount produced, its characteristics, and the capacity of the liquid waste processing facility. The IPAL was evaluated from a technical standpoint, considering its suitability with the design criteria for each unit. The environmental impact evaluation was conducted by analyzing changes in the pollution index (PI) of the river receiving the IPAL effluent due to the pollutant load from the IPAL. Furthermore, through a SWOT analysis, a management strategy for the IPAL was formulated based on its current conditions. The results of the study showed that the efficiency of the IPAL PT. X Bali for TSS parameters is only 41%, while BOD, COD, oil & fat, and NH₃ parameters show efficiency above 90%. The results of the class 4 river water pollution index indicate that the water quality status of the Yeh Penet tributary in the study area is "Light Pollution (CR)". The results of the strategy formulation determine the operators specifically tasked with maintaining the Wastewater Treatment Plant (IPAL).
Co-Authors Adhi Yuniarto Agus Slamet Alfan Purnomo Ali Masduqi Amalludin, Fahmi Ikhlasul Ariana Ariana Arliyani, Isni Arseto Yekti Bagastyo Aziz, S. Kamilia Bagastyo, Arseto Yekti Bhakti, Lingga Manunggal Bowo Djoko Marsono Cynthia Dyah Puspitasari Degani, Muhammad Dewi Puji Rahayu Eddy Setiadi Soedjono Eko Setiawan Endang Susilowati Fathyah, Fathyah Fauziah, Natasya Febriani Hartati, Putri Brikke Sukma Hastuti, Dian Suci Jingga, Azharine Purwa Joko Pramono Kalahari, Bintang Kartika Nuswantara Lahay, Aris Bastian Lin, Jr-Lin Mahendra, Bara Mahendra, Cok Agung Andra Marhendra, Bara Awanda Naura, Zahira Dinda Ni Wayan Suarmini, Ni Wayan Niken Prasetyawati, Niken Novianus R.P, Gabriel Pangestu, Aditya Kurnia Aji Pratama, Ekadhana Chana Pratama, I Putu Eka Widya Purwanita Setijanti Raditya, Murry Rahman, Dian Arif Rahmawati, Deti Rizal, Moh Najib SALMAN FARIS Saputro, Erwin Adi Septin Puji Astuti Sidik, Fahrudin Subechi, Dya Nur Mangzila Syaharani, Nadia Salwa Tangahu, Bieby Voijant Titah, Harmin Sulistiyaning Utami, Adinda Sih Pinasti Retno Wahyuni, Afrinda Dwi Warmadewanthi, I D A A Yulikasari, Andriyan Zafira, Athaya Dhiya