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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Journal of Engineering and Technological Sciences Jurnal Sains & Teknologi Lingkungan UNEJ e-Proceeding EnviroScienteae ENVIROSAN : Jurnal Teknik Lingkungan Journal Sampurasun : Interdisciplinary Studies for Cultural Heritage Journal of Community Based Environmental Engineering and Management INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi Jurnal Lingkungan dan Sumberdaya Alam (JURNALIS) INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Yustiani, Yonik Meilawati
Universitas Pasundan
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Other

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Water Demand Modeling using Machine Learning Method in Bandung City, Indonesia Evi Afiatun; Yonik Meilawati Yustiani; Dennis Anugerah Tanra
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 3 (2023): November 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i3.581-589

Abstract

This research was conducted at Bandung City with the aim of building a model using machine learning methods so that it can estimated clean water demands in Bandung City, as well as knowing the external factors that are considered to affect the model. Machine learning is a part of Artificial Intelligence (AI) discipline. The modeling is carried out using independent variables in the form of climate parameters which are rainfall, rainy days, and humidity, as well as the dependent variable in the form of drinking water needs which are represented by raw water. Data collection is done through secondary data. The model was built by using the TPOT module, and produces the AdaBoost.R2 algorithm as the most optimal model, by using the model algorithm, the best sub-model is produced with the most influential external factors, namely rainy days and humidity which has an MAE of 326,077.70 and a MAPE of 4.75%. This model is compared with the ARIMA model which has an MAE of 330,672.088 and an MAPE of 5.07%.
Peran Generasi Muda dalam Upaya Memahami dan Menganalisis Isu-Isu Permasalahan Lingkungan Hidup di Indonesia Rachman, Indriyani; Matsumoto, Toru; Yustiani, Yonik Meilawati
INFOMATEK Vol 26 No 1 (2024): Volume 26 No. 1, Juni 2024
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/infomatek.v26i1.14307

Abstract

Indonesia menghadapi tantangan lingkungan yang signifikan, termasuk deforestasi, polusi, dan hilangnya keanekaragaman hayati. Pelibatan generasi muda sangat penting dalam mengatasi masalah-masalah yang kompleks ini terutama dalam kaitannya dengan SDGs (Sustainable Development Goals). Penelitian ini bertujuan untuk mengetahui peran mahasiswa dalam memahami upaya-upaya untuk menganalisis masalah lingkungan di Indonesia. Pendekatan metode yang digunakan yaitu dengan mengadakan workshop yang dilanjutkan dengan penyebaran kuesioner pada 26 peserta, terdiri dari 18 mahasiswa dan 8 instruktur. Hasil penelitian menunjukkan bahwa para peserta menunjukkan peningkatan yang signifikan dalam kesadaran yang kuat akan isu-isu SDGs di Indonesia dan menyadari pentingnya keterlibatan aktif dalam menganalisis dan mengatasi tantangan-tantangan tersebut. Lokakarya ini memfasilitasi diskusi mengenai solusi potensial dan mendorong para mahasiswa untuk menjadi agen perubahan yang aktif. Studi ini menyoroti kontribusi berharga yang dapat diberikan oleh generasi muda dalam memahami dan mengatasi masalah lingkungan di Indonesia.
Analisis Komparatif Kualitas Susu Berdasarkan Jumlah Koloni, Reduksi Metilen Blue, dan Kandungan Coliform Rihsanny, Dwita; Rahmawati, Dwi Shalma; Khasanah, Eni Imroatul; Pangga, Huda Dwi; Febriana, Raisya Putri; Aripin, Rofiq; Yustiani, Yonik Meilawati
INFOMATEK Vol 27 No 1 (2025): Juni 2025
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/infomatek.v27i1.29618

Abstract

Penelitian ini bertujuan untuk melakukan analisis komparatif terhadap kualitas mikrobiologi susu sapi berdasarkan tiga parameter utama, yaitu waktu reduksi metilen blue (MBRT), jumlah total koloni (Total Plate Count/TPC), dan indeks jumlah perkiraan terdekat (Most Probable Number/MPN) untuk coliform. Enam sampel susu dikumpulkan dari berbagai depot susu di Kota Bandung dan diuji di laboratorium mikrobiologi. Hasil uji menunjukkan bahwa sebagian besar sampel memiliki kualitas mikrobiologi yang rendah, dengan MBRT <2 jam, TPC >300 CFU/mL, dan JPT tinggi. Hanya satu sampel yang menunjukkan kualitas sangat baik pada MBRT dan TPC, namun tetap mengandung coliform dalam jumlah cukup tinggi. Temuan ini menekankan pentingnya sanitasi yang ketat dalam seluruh rantai produksi dan distribusi susu untuk menjamin mutu dan keamanan produk.
THE USE OF ECO ENZYME-BASED MUDBALLS IN REDUCING COD AND TSS POLLUTANTS IN POLLUTED RIVERS Yustiani, Yonik Meilawati; Nugroho, Fadjari Lucia; Halimah, Mimi; Agustina, Monica; Herbimaya, Azahra Siti; Sudarjanto, Gatut; Humam, Ivan Aliyatul
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 8, NUMBER 1, APRIL 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v8i1.22601

Abstract

Aim: This study aims to investigate the effectiveness of Eco Enzyme and EM1-based mudballs in improving river water quality by reducing COD and TSS. Methodology and Results: The study was conducted using an experimental method in the laboratory with four variations of mudballs, i.e. mudballs without additions, mudballs with Eco Enzyme, mudballs with effective microorganisms (EM1), and mudballs with a combination of Eco Enzyme and EM1. Artificial river water samples were made using glucose and kaolin solutions, and water quality was measured using the closed reflux method for COD, the gravimetric method for TSS, and pH measurements. Conclusion, significance and impact study: The results showed that all variations of mudballs were able to reduce COD and TSS values, but only the variation with a combination of Eco Enzyme and EM1 showed the most significant reduction in COD even though it had not reached the quality standard according to Government Regulation No. 22 of 2021. This variation was also effective in removing 100% TSS, and all variations managed to maintain the pH value within a safe range (6-9). The conclusion of this study is that the combination of Eco Enzyme and EM1 in mudballs provides the best results in improving river water quality, especially in TSS removal. However, further optimization is needed to remove COD to meet water quality standards.
The Effectiveness of the Electrocoagulation Process in Reducing TDS Concentration in Brackish Water in Subang Regency Afiatun, Evi; Yustiani, Yonik Meilawati; Pradiko, Hary; Rahayu, Giga Galuh; Suju, Anis Dwiantoro
Journal of Community Based Environmental Engineering and Management Vol. 9 No. 2 (2025): September 2025
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v9i2.32579

Abstract

Brackish water is a water resource that has the potential to be used as raw water, but has limitations due to high levels of total dissolved solids (TDS) This study aims to analyze the effectiveness of the electrocoagulation method in reducing these pollutant parameters in brackish water samples from Subang Regency. The groundwater samples were taken in the area of the Diniyah Takmiliyah Awaliyah Islamic Madrasa School. The research was conducted using a prototype electrocoagulation device with a pair of aluminum plates, varying voltages (10, 12, 14, and 15 volts), varying flow rates (0.06 L/second and 0.08 L/second), and conditions with and without a plate settler in the sedimentation unit. The results showed that increasing the voltage significantly reduced TDS levels. The highest efficiency was achieved at 10 volts with a flow rate of 0.06 L/second, reducing TDS from 3,400 mg/L to 3,110 mg/L (8.5%). Meanwhile, the lowest efficiency was achieved at 12 volts with a flow rate of 0.08 L/second, at 2.1%. Overall, this study confirms that electrocoagulation can be an alternative brackish water treatment technology in coastal areas. Although the TDS reduction efficiency is still limited, this method can be further developed as part of an integrated system to support sustainable clean water availability.
DETERMINATION OF DEOXYGENATION RATE OF URBAN RIVER USING MODIFICATION METHODS FOR CITEPUS RIVER WATER, BANDUNG, INDONESIA Yustiani, Yonik Meilawati; Nurkanti, Mia; Tarigan, Fadhlan Khusyairi; Sudarjanto, Gatut
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 1, OCTOBER 2021
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i1.10740

Abstract

River water quality modeling needs appropriate and suitable coefficients especially in application for specific river like urban river. Aim: This study aims to determine the value of the coefficient with a short term duration and a variable test time span.  Several ways and methods of determining the rate of deoxygenation are developed according to the characteristics of the river and the environment. Modification method was applied in this research in which the test time span was unequal. The river chosen in this study is the Citepus River, Bandung, Indonesia representing an urban river in a tropical country. Methodology and Results: Sampling was carried out in the dry season. The laboratory analysis method used in determining the rate of deoxygenation uses the Slope Method of data from the short term incubation, which is ten days. The results showed that the Thomas Slope method's deoxygenation rate (K1) was 0.095 per day in the upstream segment, 0.917 per day in the middle segment, and 0.180 per day in the downstream segment. While the Ultimate BOD (La) value is 46.95 mg/l in the upstream segment, 38.70 mg/l in the middle segment, and 37.60 mg/l in the downstream segment. Conclusion, significance, and impact of study: The results of this study show that the value of the deoxygenation rate is similar to the theoretical surface water conditions. However, in the upstream segment, there is still a low deoxygenation rate value due to non-optimal activity of microorganisms. This findings will be very useful both in water quality modeling and river management.
Noise Pollution in Urban Areas : Measurement and Analysis of Traffic Noise Impacts on Health and Education Services in Bandung City Hasbiah, Astri Widiastuti; Afiatun, Evi; Nur Aulia, Mitha; Yustiani, Yonik Meilawati
Journal of Community Based Environmental Engineering and Management Vol. 8 No. 2 (2024): September 2024
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v8i2.17478

Abstract

Traffic noise is a significant environmental issue in urban areas, adversely affecting public health and the quality of essential services. This study aims to evaluate the noise pollution levels at sensitive locations, consist of a health clinic and two schools in Bandung City, Indonesia. The research involves measuring noise levels, mapping their distribution, and analyzing the data. Measurements were conducted over four days using a smartphone application, Decibel X, to record noise levels every 5 seconds for 10-minute sessions across various times of the day. Simultaneously, vehicle counts were recorded to establish a correlation between traffic volume and noise levels. A questionnaire survey was administered to gather perceptions of noise impact from teachers, students, clinic staff, and patients. The findings revealed that noise levels at several points, particularly near busy roads, exceeded recommended standards, significantly disrupting concentration and causing physical symptoms such as headaches among respondents. Noise hotspots identified included Point1 and Point6, where average noise levels were consistently high, while Point4 and Point5 showed lower but more variable noise levels. To mitigate traffic noise, the study recommends a combination of installing noise barriers, creating green spaces, and enhancing building insulation. Regular noise monitoring and public awareness campaigns are essential for effective noise management and improving the quality of life in Bandung City.
Enhancing Household Waste Management for Climate Change Mitigation: A Case Study of RW 06, Pasirluyu, Bandung, Indonesia Afiatun, Evi; Yustiani, Yonik Meilawati; Hidayat, Hidayat; Grahandikha, Muhammad Bagas; Nurpratama, Yanuar Rizal; Wijaya, Vinvin Halim
Journal of Community Based Environmental Engineering and Management Vol. 8 No. 2 (2024): September 2024
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v8i2.18449

Abstract

In exploring how household waste management contributes positively towards climate change mitigation in RW (sub hamlet) 06, Pasirluyu Sub District, Bandung, the objective of this study is to assess existing waste management practices; promoted community awareness as well as aligning them with climate actions like waste reduction programs through recycling and composting initiatives. Recommendation is suggested for enhancing household waste management, especially facing the climate change mitigation. A total of 10 representative households were followed for 30 days collecting data on their wastes generation, separation and treatment processes that included various types of waste such as organic, inorganic and residual where organic wastes were composted using a Takakura method. The findings reveal that between 40-60% of the total amount of household garbage are made up of organic substances while inorganic substances account for about 20-35% and lastly residuals constitute only 5-10%. Households managed to separate their wastes properly on one hand though on another incorrect sorting was noted complicated by inconsistent participation. Thus composting resulted into reduced amounts of organic waste going to landfills thereby minimizing methane emissions. But then again limited infrastructural facilities as well as low levels of understanding were some other barriers against enforcing these practices. Continuous community engagement, enhanced infrastructure, and policy support are essential for aligning waste management with climate change mitigation efforts in RW 06. The findings contribute to broader sustainability goals and highlight the potential for similar urban communities to adopt climate-conscious waste management practices.
Community Readiness on Non-Organic Waste Management of Hamlet 3, Kasomalang Kulon Village, Subang District, Indonesia Yustiani, Yonik Meilawati; Hasbiah, Astri Widiastuti; Yusuf, Mahmud; Alfiah, Taty
Jurnal Sains dan Teknologi Lingkungan Vol. 14 No. 1 (2022): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol14.iss1.art6

Abstract

Waste management is a systematic, comprehensive and sustainable activity that includes the reduction and handling of waste. In Kasomalang Kulon Village precisely in Hamlet 3, waste management has not yet been carried out properly. Community education is conducted to gain more awareness of people in handling the waste properly. The purpose of this study is to identify non-organic waste that still has an economic value so that it can be recycled and reduce the amount of waste that enters the waste disposal site. The research also aims to know the readiness of the community in managing waste, and determine the processing needed. Prior to designing the management system, a sampling was conducted using sampling method based on SNI 19-3964- 1994 to identify quantity and type of wastes. The community readiness was investigated by distributing questionnaires following the community education. The survey shows that the solid waste generation is 0.193 kg/person/day for permanent houses and 0.182 kg/person/day for semi-permanent houses and the average weight of garbage generation per day is 68.80 kg. Non-organic waste data from Kasomalang Kulon Village which has an economic value of 32% of the total waste generation which is 3,761 L/d with potency of approximately IDR 425,000 per week. In general, the KAP survey shows that community has a high level of knowledge, positive attitudes and good behavior, which indicates the readiness of the community in managing non-organic waste.
Konsep Sistem Informasi tingkat Rukun Warga di RW06 Kelurahan Pasirluyu, Kecamatan Regol, Kota Bandung Yustiani, Yonik Meilawati; Afiatun, Evi; Hidayat, Hidayat; Saffanah, Nadhirah Nur; Wisudaningrum, Rike
INFOMATEK Vol 25 No 2 (2023): Volume 25 No. 2 Desember 2023
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/infomatek.v25i2.11091

Abstract

Kajian ini bertujuan untuk mendapatkan konsep sistem informasi tingkat RW (rukun warga) yang dibutuhkan bagi RW06 Kelurahan Pasirluyu, Kecamatan Regol, Kota Bandung yang mudah dikelola. Manfaat sistem informasi ini antara lain untuk memperlihatkan data warga dan lingkungan, terutama kondisi sanitasi yang meliputi air minum, air limbah, sampah dan drainase. Penentuan konsep ini dilakukan dengan metode observasi, wawancara dan tinjauan pustaka. Konsep yang tersusun yaitu penggunaan website sebagai interface sistem informasi dan pengelolaannya, pengelompokan jenis data berdasarkan Peraturan Walikota no 215 Tahun 2018 tentang Penyelenggaraan RT dan RW. Terdapat 3 peran terkait sistem informasi ini, yaitu admin, peninjau berkepentingan tinggi, dan peninjau berkepentingan rendah dengan akses dan tampilan yang berbeda-beda. Hak akses ini dibatasi untuk peninjau berkepentingan rendah agar keamanan data dan privasi dapat terjaga. Peninjau berkepentingan rendah dapat melihat data dan informasi dalam bentuk grafik kualitatif, sedangkan peninjau berkepentingan tinggi dapat memanfaatkan data dan informasi untuk menetapkan program dan strategi perbaikan sanitasi dengan akses detail posisi dan lokasi sumber data.
Co-Authors Achmad Teguh Djayadisastra Afiatun, Evi Agustina, Monica Ahmad Sidik Alexander Saputra Ali Anggadinata Andika Juliandahri Anggraini, Nesa Anni Rochaeni Ari Rizky Darmawan Aripin, Rofiq Arry Akbar Abdul Kadir Asep Permana Baihaki, Eki Bryan Yogi Cartono Cartono Dede Sulaeman Dennis Anugerah Tanra Diny Hidayanti Dwi Antono Sigalingging Elva Aulia Emilia E Evi Afiatun Fadhlan Khusyairi Tarigan Fadjari Lucia Nugroho Fadjari Lucia Nugroho Fauzi Zaki Murtadho Febriana, Raisya Putri Fyra Catleya Gatut Sudarjanto Grahandikha, Muhammad Bagas Happy Dhamayantris Hasbiah, Astri Herbimaya, Azahra Siti Herdian Fitranandia Hidayat Hidayat Humam, Ivan Aliyatul Ihsanul Fiqri Indriyani Rachman Inka Muthia Ardhana Khasanah, Eni Imroatul Lili Mulyatna Mahmud Yusuf Matsumoto Toru Matsumoto, Toru Mia Nurkanti Mimi Halimah Nesa Anggraini Noverando, Refiandy Novia Indriyani Supendi Novianty Sri Hardadi Nur Aulia, Mitha Nurpratama, Yanuar Rizal Pangga, Huda Dwi Pebby Febrianto Pradiko, Hary Putri Permatasari Rahayu, Giga Galuh Rahmawati, Dwi Shalma Raja Faisal Ramadhan Reyhan Reiyana Andisa Riana Saputra Rihsanny, Dwita Rusli Fuad Rusmaya, Deni Saffanah, Nadhirah Nur Santika Santika Sri Wahyuni Sri Wahyuni Sudarjanto, Gatut Suju, Anis Dwiantoro Suwirkas Suwirkas Tarigan, Fadhlan Khusyairi Taty Alfiah Widya Yopita Wijaya, Vinvin Halim Wisudaningrum, Rike