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All Journal J@TI (TEKNIK INDUSTRI) Jurnal Ilmu Lingkungan Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) JURNAL KESEHATAN LINGKUNGAN (Journal of Environmental Health) Jurnal Wilayah dan Lingkungan JTERA (Jurnal Teknologi Rekayasa) Communications in Science and Technology Jurnal Ilmu Alam dan Lingkungan Jurnal Purifikasi ENVIROSAN : Jurnal Teknik Lingkungan Jurnal Serambi Engineering Media Ilmiah Teknik Lingkungan Indonesian Journal of Chemical Analysis (IJCA) Region : Jurnal Pembangunan Wilayah dan Perencanaan Partisipatif EPI International Journal of Engineering Jurnal EnviScience (Environment Science) Jurnal Ilmiah Lingkungan Kebumian Jurnal Senopati : Sustainability, Ergonomics, Optimization, and Application of Industrial Engineering Jurnal Energi Baru dan Terbarukan INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal Teknik Kimia dan Lingkungan Journal of Sustainable Infrastructure Journal of Engineering Science and Technology Management Jurnal Industri Furnitur dan Pengolahan Kayu Integrasi: Jurnal Ilmiah Teknik Industri
Anshah Silmi Afifah
Department Of Furniture Production Engineering, Politeknik Industri Furnitur Dan Pengolahan Kayu, Kendal Regency, 51371, Indonesia
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 Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Veterinary

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Evaluasi Kehadiran Dan Pemanfaatan Duckweed Pada Sistem Kolam Stabilisasi Pengolahan Air Limbah Domestik Darwin Darwin; Anshah Silmi Afifah; Mega Mutiara Sari; I Wayan Koko Suryawan; Yosef Adicita
Jurnal Ilmiah Lingkungan Kebumian Vol 5, No 1 (2022): September 2022
Publisher : Jurusan Teknik Lingkungan, FTM, Universitas Pembangunan Nasional “Veteran” Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jilk.v5i1.7292

Abstract

Pengolahan air limbah domestik yang saat ini umum digunakan adalah kolam stabilisasi yang terdiri dari anaerob, fakultatif, dan aerobik. Di dalam prosesnya setelah melalui kolam stabilisasi dapat dapat ditampung melalui reservoir. Dalam proses pengolahan dengan proses kolam stabilisasi kehadiran gulma seperti duckweed dapat memban meningkatkan efisiensi penyisihan nutrient. Tujuand ari studi ini adalah untuk mengevaluasi kehadiran duckweed pada air limbah dan potensi pemanfaatannya di sistem kolam stabilisasi. Studi ini dilakukan dengan cara observasi lapangan dan studi literatur. Sistem kolam stabilisasi terdiri dari 3 sel: sel IA dan sel IB, sel IIA dan IIB, dan sel III. Sel I terdiri dari dua bagian yaitu sel IA dan sel IIB. Duckweed dalam sistem hanya tumbuh di kolam sel IB, sel IIA dan reservoir. Sesuai dengan karakteristiknya, alga memang sudah seharusnya tumbuh di sel IIA. Sel IIA adalah kolam fakultatif, yang memiliki daerah aerobik dan daerah anaerobik. Saat pagi dan sore hari alga tidak muncul ke permukaan dan air terlihat bening. Alga yang muncul di reservoir didominasi oleh alga kelas Chlorophyta karena memiliki warna hijau. Duckweed dapat digunakan sebagai pakan ternak seperti ikan, sapi, domba, kuda dan babi. Selain itu duckweed juga daapat dijadikan sumber energi dengan teknologi termokimia telah banyak digunakan untuk menghasilkan produk bio-minyak, arang dan gas.
Inisiatif Penanaman Mangrove sebagai Upaya Mitigasi Banjir Rob di Kabupaten Kendal : Studi Literatur Anshah Silmi Afifah; Mega Mutiara Sari; Sapta Suhardono; I Wayan Koko Suryawan
Jurnal Serambi Engineering Vol 8, No 4 (2023): Oktober 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i4.6835

Abstract

Daerah pesisir Kabupaten Kendal menghadapi ancaman signifikan dari banjir rob dan abrasi. Inisiatif penanaman mangrove telah diperkenalkan sebagai solusi alami untuk mengatasi masalah tersebut. Studi literatur kualitatif ini bertujuan untuk menganalisis kekuatan, kelemahan, peluang, dan ancaman (SWOT) dari inisiatif tersebut. Hasil analisis menunjukkan bahwa mangrove memiliki peran penting dalam menjaga keseimbangan ekosistem pesisir dan bertindak sebagai benteng alami melawan abrasi. Meskipun demikian, masih ada hambatan dalam pelaksanaan dan pemeliharaan mangrove. Ditemukan potensi kolaborasi yang besar antara pemerintah, komunitas, dan organisasi lingkungan. Namun, tantangan eksternal seperti perubahan iklim dan aktivitas pembangunan berisiko mengurangi efektivitas inisiatif ini. Diharapkan kesadaran masyarakat dan dukungan lintas sektor dapat memperkuat keberlanjutan inisiatif ini.
Kultivasi Mikroalga Chlorella dengan Media Air Limbah (Studi Literatur untuk Produksi Biomassa dan Pengolahan Air Limbah) Darwin Darwin; Anshah Silmi Afifah; Gita Prajati
Jurnal Serambi Engineering Vol 8, No 1 (2023): Januari 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i1.5552

Abstract

Chlorella is a microalga that has been extensively used because of its fast-growing ability and can reduce pollutant in the wastewater as well. By using wastewater as a nutrient source for Chlorella cultivation, it has a potential to accomplish a sustainable biomass production. In this literature review, the ability of Chlorella to reduce pollutant (COD, TN, TP) in the wastewater were summarized. The average of pollutant removal of COD, TN and TP by Chlorella are 70,4%; 80%; and 79,4%. The biomass productivity of Chlorella cultivated in the wastewater reach 450 mg/L/day. In the end, there are some additional treatments that is used to enhance the Chlorella growth and the pollutant removal performance. Those additional treatments are surfactant, glycerol, pre-treatment and diluting wastewater concentration.
Pengelolaan Sampah Plastik Melalui Teknologi Pirolisis di TPST Manding, Kabupaten Sragen: Analisis Efektivitas dan Potensi Keberlanjutan Sari, Mega Mutiara; Afifah, Anshah Silmi; Suryawan, I Wayan Koko
Jurnal Energi Baru dan Terbarukan Vol 4, No 3 (2023): Oktober 2023
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2023.20092

Abstract

Kabupaten Sragen, seperti banyak daerah lain di Indonesia, juga menghadapi tantangan dalam pengelolaan sampah Studi ini bertujuan untuk mengkaji efektivitas pengelolaan sampah plastik di Kabupaten Sragen dengan menerapkan teknologi pirolisis di Tempat Pengolahan Sampah Terpadu (TPST) Manding. Berpedoman pada Perda No. 3/2014 tentang Pengelolaan Sampah, Kabupaten Sragen menekankan pentingnya partisipasi masyarakat dalam realisasi implementasi kebijakan ini. Berdasarkan data dari Sistem Informasi Pengelolaan Sampah Nasional (SIPSN), diketahui bahwa kemampuan pengelolaan sampah plastik telah mengalami peningkatan signifikan, dimana ada kenaikan dalam reduksi sampah plastik hingga 0,97% pada tahun 2022. Namun, masih terdapat potensi yang belum sepenuhnya dimanfaatkan. Dalam mewujudkan pengelolaan sampah yang berkelanjutan, kerjasama antara pemerintah dengan pelaku industri serta keterlibatan aktif masyarakat menjadi faktor utama. Di sisi lain, instrumen retribusi dan penelitian willingness to pay diidentifikasi sebagai mekanisme pendukung untuk meningkatkan keberlanjutan dan kapasitas pengolahan sampah plastik melalui pirolisis. Kesimpulannya, Kabupaten Sragen telah menunjukkan komitmen dan inovasi dalam mengelola sampah plastik melalui pirolisis, namun masih memerlukan kerjasama multi-pihak dan pendekatan holistik untuk memastikan keberlanjutan dan efektivitas program ini di masa depan.
Performa Fasilitas Rumah Kompos Di Kabupaten Kendal, Jawa Tengah Suhardono, Sapta; Sari, Mega Mutiara; Afifah, Anshah Silmi; Suryawan, I Wayan Koko
Journal of Sustainable Infrastructure Vol. 3 No. 1 (2024): Mitigation Strategies for Sustainable Infrastructure: Balancing Development and
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v3i1.25

Abstract

Kendal District has two primary waste management facilities: the Pasar Kendal Composting House and the Jatirejo Composting House. This study meticulously evaluates the operational performance of these facilities throughout the 2021-2022 timeframe, uncovering a stark contrast in their waste processing achievements. In the year 2021, the Jatirejo facility managed to process only a paltry 0.35% of the total waste received, starkly juxtaposed against the Pasar Kendal facility, which impressively reduced 100% of its waste. The subsequent year, 2022, witnessed a dramatic shift in performance metrics: Jatirejo saw a significant uptick in its processing capacity to 50.00%, while Pasar Kendal experienced a reduction in efficiency, processing only 58.81% of its waste. This research accentuates the untapped potential for amplifying the capacity and effectiveness of composting as a waste management strategy in Kendal District, where a considerable volume of waste is composed of food remnants. The study proposes a series of solutions aimed at fortifying waste management capabilities, including infrastructure enhancement, comprehensive community education programs, and the enactment of more stringent governmental policies to facilitate improvement in waste processing rates.
Microalgae production using photo-bioreactor with intermittent aeration for municipal wastewater substrate and nutrient removal Afifah, Anshah Silmi; Suryawan, I Wayan Koko; Sarwono, Ariyanti
Communications in Science and Technology Vol 5 No 2 (2020)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.5.2.2020.200

Abstract

Microalgae has emerged as a promising approach for removing substrate and nutrient from wastewater with the concomitant biofuel production. The substrate and nutrient removal are influenced by several factors such as C/N ratio, F/M ratio, pH, and DO. This study aims to determine the efficiency of substrate and nutrient removal with the growth rates of microalgae and biomass by varying the addition of aeration and substrate. Intermittently aerated reactors were used with the flow rate of 14 L/minute. The batch reactors were prepared by adding glucose substrate of 50 mg/L (Ra0A), 100 mg/L (Ra0B), and 150 mg/L (Ra0C) without aeration; 50 mg/L (Ra12A), 100 mg/L (Ra12B), and 150 mg/L (Ra12C) with 12-hour aeration, and 50 mg/L (Ra24A), 100 mg/L (Ra24B), and 150 mg/L (Ra24C) with 24-hour aeration. The substrate removal, expressed as chemical oxygen demand (COD) in the reactor with aeration, showed the efficiency of 73.88% ± 2.05 (12-hour aeration), 75.2% ± 3.97 (24hours aeration), and 69.86% ± 5.69(without aeration). Nutrient removal as ammonia-N (NH3-N) gave high removal value of 98.3% ± 0.11 and the removal of nutrient as phosphate (PO3-4) showed the efficiency of 54.3% ± 0.1. The growth rate of microalgae and biomass exhibited the highest value in Ra24C reactor with the values of 0.0229/day and 0.1295/day, respectively. The pH values indicated a shift from normal to alkaline while DO values increased by the addition of 12 and 24-hour aeration.
Stability Testing of an Air Quality Monitoring System for Particulate Matter (PM2.5 and PM10) Based on The SEN0233 Sensor Afifah, Anshah Silmi; Nugroho, Alfani Risman; Widiyanto, Wahyu; Haryati, Putri Dwi; Syah, Edo Ardiyan
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 1 (2025): Maret 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i1.205

Abstract

Particulate Matter (PM) is an air pollutant that has the potential to pose serious health risks to the public, including respiratory and cardiovascular diseases. This study aims to design and develop a real-time monitoring system for PM2.5 and PM10 using the SEN0233 sensor. This system is expected to be able to provide accurate data on the concentration of particles in the air. The research methodology includes selecting the right sensor, designing a NodeMCU microcontroller-based system, and testing the sensor to ensure measurement accuracy. The collected data will be stored in a database and can be accessed through a web interface, allowing users to monitor air quality directly. Initial test results show that the SEN0233 sensor is able to detect PM2.5 and PM10 concentrations well. This research contributes to the development of a more efficient and reliable monitoring system, to improve air quality and overall public health.
Water Hyacinth Management Due to Eutrophication in Water Bodies Around Pasir Panjang Village, Batam City Adicita, Yosef; Afifah, Anshah Silmi; Ulfah, Nurul; Sari, Mega Mutiara; Suryawan, I Wayan Koko
Jurnal EnviScience (Environment Science) Vol. 6 No. 2 (2022)
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/jev.v6i2.353

Abstract

Water is a human need to carry out activities ranging from daily essentials to agricultural needs and others. Domestic wastewater must meet physical, chemical, and biological requirements so that humans cannot be polluted by the water, especially the water around the Pasir Panjang Village area in Batam, Riau Islands. This study aims to determine the potential use of water hyacinth for environmental health. This research was conducted by direct observation and measurement of water quality by grab sampling. Observation results show that not all residents use septic tanks as wastewater treatment results from daily activities. Some residents drain their wastewater directly into water bodies or surrounding land, resulting in decreased environmental aesthetics. Water quality testing for nutrient parameters shows that the quality standards have been met. However, further measurements are needed for total nitrogen and phosphate. Besides that, it also causes a population explosion of water hyacinth. In addition to the ability to treat water hyacinth waste, its economic potential is also analyzed. The growth of water hyacinth is sufficient and fulfills its capacity, and water hyacinth can be used for various crafts that can improve the community's welfare.
Evaluation of Office Chairs to Enhance Comfort and Reduce Musculoskeletal Risk in Sedentary Work Environments Fitrianto, Taufik Ramadhan; Prakoso, Galih; Nugroho, Alfani Risman; Afifah, Anshah Silmi; Anggiriani, Siska; Widiastuti, Retno
Jurnal SENOPATI : Sustainability, Ergonomics, Optimization, and Application of Industrial Engineering Vol 6, No 2 (2025): Jurnal SENOPATI Vol 6, No 2
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.senopati.2025.v6i2.6750

Abstract

This study evaluates the effectiveness of an ergonomically redesigned office chair, tailored to meet the anthropometric needs of employees. It addresses common issues associated with prolonged sitting, such as musculoskeletal discomfort and fatigue, which are prevalent in sedentary work environments. Utilizing anthropometric data from prior studies, the redesign incorporates modifications in key chair dimensions—such as seat height, seat depth, and backrest height—to enhance user comfort and reduce physical strain. The ROSA (Rapid Office Strain Assessment) tool was employed to assess posture and ergonomic risk for both the old and redesigned chairs. Findings indicate a significant improvement in ergonomic support and comfort with the new design, supported by a statistically significant reduction in ROSA scores, as confirmed through a paired sample t-test. Although the redesign effectively enhances comfort, further improvements are recommended, including adjustable lumbar support and backrest flexibility. This study underscores the importance of ergonomic adaptations in office furniture to support diverse body types and reduce occupational health risks.
Optimization of Wood Waste Utilization for Sustainable Material Processing in the Furniture Industry Afifah, Anshah Silmi; Nugroho, Alfani Risman; Nurmadina, Nurmadina; Fitriyanto, Taufik Ramadhan; Juwitasari, Dhian
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i2.266

Abstract

This study aims to identify and quantify wood waste produced during the machining of solid wood components using kiln dried Durio zibethinus boards. A descriptive quantitative approach was employed to measure the volume and weight of waste generated at each production stage, including ripping, crosscutting, planing, and thicknessing. Sampling was conducted using a precision digital scale to collect and compare the actual and theoretical waste. The results indicate that only 43% of the raw material volume was utilized in finished components, while 57% was lost as waste, primarily in the form of sawdust, shavings, and offcuts. The thicknesser contributed the largest proportion of waste (58%), followed by the ripsaw (21%), single planer (20%), and jumpsaw (1%). These findings highlight the need for improved raw material selection, more efficient cutting list design, enhanced nesting strategies, and better machine calibration. Implementing these practices can reduce wood waste, improve material efficiency, and minimize occupational exposure to wood dust in furniture manufacturing
Co-Authors Aartje Tehupeiory Adicita, Yosef Afdal Hardiyanto Alia Damayanti Anggiriani, Siska Apritama, Muhammad Rizki Ayu Widyawati Bahtiar Rahmat D. Darwin Darwin Darwin Darwin Darwin Darwin Darwin Elanda Fikri Fitrianto, Taufik Ramadhan Fitriyanto, Taufik Ramadhan Galih Prakoso, Galih Gita Prajati Gita Prajati Gita Prajati Gita Prajati Gita Prajati Hanung Nurany Haryati, Putri Dwi I Wayan Koko Suryawan I Wayan Koko Suryawan I Wayan Koko Suryawan I Wayan Koko Suryawan I Wayan Koko Suryawan Ike Rachmawati Imelda Masni Juniaty Sianipar Iva Yenis Septiariva Iva Yenis Septiariva Iva Yenis Septiariva Juwitasari, Dhian Mega Mutiara Sari Mega Mutiara Sari Mega Mutiara Sari Mega Mutiara Sari Mhd. Fauzi Muhammad Fadli Ramadhansyah Muhammad Rizki Apritama Muhammad Rizki Apritama Muhammad Rizki Apritama Muslyana Muslyana Nova Ulhasanah Nugroho, Alfani Risman Nurmadina, Nurmadina Oryza Filial Zulkarnain Prajati, Gita Prajati, Gita Pratama, Aziz Yulianto Rafika Rafika Ramadani Sukaningtyas Rambe, Fany Rahmasari Retno Widiastuti S Suhardono Sapta Suhardono Sari, Mega Mutiara Sarwono, Ariyanti Suhardono, Sapta Suryawan, I Wayan Koko Syah, Edo Ardiyan Ulfah, Nurul Wahyu Widiyanto Yura Witsqa Firmansyah