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All Journal International Journal of Renewable Energy Development Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Teknik ITS IPTEK Journal of Proceedings Series Eksergi: Chemical Engineering Journal Jurnal IPTEK Konversi Jurnal Manajemen Aset Infrastruktur dan Fasilitas Jurnal Purifikasi Al-Ard: Jurnal Teknik Lingkungan International Journal Of Science, Technology & Management (IJSTM) Berkala Penelitian Hayati Journal of Social Research INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
I.D.A.A Warmadewanthi
Departemen Teknik Lingkungan Institut Teknologi Sepuluh Nopember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering 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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation

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KAJIAN ASPEK LINGKUNGAN ALTERNATIF LOKASI UNTUK REPLACEMENT PABRIK III-B PT. PUSRI IDAA Warmadewanthi
Purifikasi Vol 20 No 2 (2021): 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.v20.i2.412

Abstract

As a pioneer of urea fertilizer producer in Indonesia, PT. PUSRI is committed to realizing a sustainable fertilizer industry. Currently, PT. PUSRI has several problems which are 25% higher natural gas consumption due to the over 43 years old factory, increased investment and operational costs for old factory equipment, and spare parts that are expensive and difficult to source. For more efficient operation, PT. PUSRI plans to replace the plant and proposing 3 alternative locations, they are IA and IB on the East and West Sides of the Tanjung Api-Api area, and location II that is located in the PT. PUSRI area. To determine the most prospective location, each location needs environmental assessment. This study is using the SWOT analysis which will then be scored to show quantitative results. The results of the Strength analysis show that location II has a better score since it has a buffer zone as well as flora and fauna conservation. In the Weakness analysis, the IA and IB locations have shortcomings such as the inadequate raw water treatment technology. Location II has a disadvantage because it does not have domestic and industrial wastewater treatment technology. The results of the Opportunity analysis for IA and IB locations are considered to have more opportunities compared to location II. For Threat analysis, locations IA and IB are considered to have more challenges. One of which is the water body capacity to accept waste loads.
Evaluation Of Landfill Management At Gunung Kupang Landfill, Banjarbaru City Atthaya Namira Yulianto, Khenza; Warmadewanthi, Idaa
International Journal of Science, Technology & Management Vol. 6 No. 1 (2025): January 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i1.1259

Abstract

Banjarbaru City is the capital city of South Kalimantan Province with waste generation in 2023 of 67,854,410 kg/year. Based on the Banjarbaru City Waste Masterplan for 2021-2025 supported by Banjarbaru City Regulation No. 5 of 2023, one strategy to reduce the amount of waste dumped in landfills is the optimization and development of waste infrastructure including landfills. Waste management at the Gunung Kupang Landfill has not been optimal when viewed from the capacity of waste management. One strategy in the policy of 'Increasing Service Coverage and Quality of Management Systems' in the Masterplan is the rehabilitation of landfills that pollute the environment. Before the landfill was decided to be rehabilitated, an evaluation was carried out using the ARRPET (Asian Regional Research Program on Environmental Technology) method. An overall evaluation of the existing conditions at the Gunung Kupang Landfill has never been carried out so it needs to be carried out using the ARRPET method. The results of the environmental evaluation of the existing conditions of the Gunung Kupang Landfill with ARRPET produced a risk index score of 529.24. This value is included in the risk index with a moderate category so that the recommended follow-up is to rehabilitate the landfill into a sustainable landfill as soon as possible. Therefore, it is planned to build a methane gas installation and landfill mining in landfill zone 2 as a rehabilitation method so that the potential for environmental pollution can be minimized and the life of the landfill can be extended. Based on the evaluation results, the rehabilitation method is feasible to be carried out where the NPV of both rehabilitation methods is positive and the BCR is more than 1.
UNDERSTANDING LEVEL OF PKK BANJAR PURWA SANTHI BENOA ON MEDICAL MASK WASTE MANAGEMENT AND STRENGTHENING HEALTH PROTOCOLS IN CONTROLLING COVID-19 INFECTION Adiputra, I Komang Hotra; Harmayani, Kadek Diana; Susilawathi, Ni Made; Purnamasidhi, Cokorda Agung Wahyu; Witarini, Komang Ayu; Biantara, I Wayan Arya; Sukrama, I Dewa Made; Weisnawa, I Gede Purna; Jerry; Wulandari, Putu Kintan; Junior, Darren; Shanti, Dewa Ayu Fony Prema; Warmadewanthi, I Dewa Ayu Agung
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 6, NUMBER 1, APRIL 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v6i1.15335

Abstract

The increase in mask waste and a lack of understanding about the management of single-use mask waste raises the potential for environmental pollution and COVID-19 transmission. Aim: This study aimed to assess the level of understanding of medical mask waste management and strengthening health protocols in controlling COVID-19 infection in Banjar Purwa Santhi, Benoa, Badung Regency. Methodology and Results: A cross-sectional method and descriptive study design were used with a sample of 100 respondents selected via stratified sampling. The research and service activities at Banjar Purwa Santhi Benoa include public campaign and assessment of the level understanding of medical mask waste management. Based on univariate analysis, 91% of respondents know that mask waste contains hazardous and toxic substances. If mask waste is disposed carelessly, 98% of respondents stated that it can pollute the environment, and 98% of respondents also stated that it has the potential to become a means of transmitting COVID-19. However, 85% of respondents disposed of the masks in the household trash. Conclusion, significance and impact study: Respondents had a good level of knowledge about health protocols and mask waste management but have not separated masks from household waste. By holding the community service activity, it is hoped that changes in community behavior will occur.
The Potential Utilization of Plastic Waste as a Building Material Atmaja, Sang Kompiang Rizki Putra; Warmadewanthi, Idaa
Journal of Social Research Vol. 2 No. 8 (2023): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v2i8.1317

Abstract

One of the innovations in utilizing plastic waste is to process it into Plastic Blocks for Wall Pairs (BPBPD). This research aimed to analyze the temperature required in melting used plastic and cooking oil for making BPBPD mixtures. Variations in the research are temperature under the range 180°C, 200°C, and 220°C. Comparison of the proportions of the mixture of plastic, oil, and coarse aggregate 5-10 mm, namely 1.5:1:0.5, 1:1:0.5, and 1:1:0.25. The types of plastic used are plastic bags, aluminum-coated plastic, and mica plastic. The parameters in this study are the compressive strength value, the initial rate of suction (IRS) value, the porosity value, and the water absorption rate. The study results showed that the minimum temperature for melting plastic bags and aluminum is 180°C, and for melting mica plastic is 220°C. The recommended proportion for making this BPBPD is a ratio of 1.5:1:0.5. The results of the IRS test on the plastic bags BPBPD ranged from 0.037-0.057 Kg/m2, the aluminum plastic BPBPD 0.030-0.057 Kg/m2, and the mica plastic BPBPD 0.033-0.043 Kg/m2. The water absorption rate for plastic BPBPD ranges from 0.233-0.378%, aluminum plastic BPBPD 1.644-4.233%, and mica plastic BPBPD 1.233-2.756%. Porosity results from the plastic bag BPBPD ranged from 0.355-0.931%, the aluminum plastic BPBPD 10.83-12.1%, and the mica plastic BPBPD 2.25-3.9%. In general, the compressive strength of BPBPD plastic bags, both without and with immersion, meets the minimum average compressive strength according to BSN 1989 with quality IV with the highest value in the 1.5:1:0.5 mixture of 38.2 Kg/cm2.
Potensi Emisi Gas Rumah Kaca Pengangkutan dan Pengolahan Limbah B3 Infeksius Faskes Surabaya Timur dengan Sistem Dinamik Nengse, Sulistiya; Warmadewanthi, IDAA
Al-Ard: Jurnal Teknik Lingkungan Vol. 10 No. 1 (2024): September
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/alard.v10i1.2188

Abstract

Health facilities in East Surabaya consist of 78 facilities, but only 6 have incinerators for processing B3 solid medical waste. Health facilities that do not have incinerators collaborate on transportation and processing with other health facilities that have incinerators or third parties. A dynamic system application is applied to calculate potential Green House Gas (GHG) emissions from the transportation and processing of B3 solid medical waste from health facilities in East Surabaya using a causal loop approach. The research was carried out by measuring medical solid waste generation for 8 days and collecting secondary data. The research includes calculating the weight of medical solid waste and greenhouse gas emissions. The research results show that the weight of medical solid waste increases from year to year with the need for 16 trips per day. The generation of B3 solid medical waste from health facilities in East Surabaya is 5,019 tons/year. With this large generation, the GHG potential from transporting and processing hazardous solid medical waste from health facilities in East Surabaya is 8,200,521 tons CO2e/year.
Mapping the Potential of Organic Waste as a Bioconversion Substrate for Black Soldier Fly Larvae (BSFL) in Surabaya City and Sidoarjo Regency Fitriana, Aulia Rodlia; Bagastyo, Arseto Yekti; Warmadewanthi, IDAA; Hanh, Dang Vu Bich; Ursada, Riang
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 3 (2025): November 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i3.865-880

Abstract

Waste management remains a critical challenge in Indonesia, particularly in urban areas. Bioconversion using Black Soldier Fly Larvae (BSFL) presents a sustainable solution for transforming organic waste into high-value biomass rich in protein and fat. The objective of this study was to investigate the potential utilization of organic waste from markets, bakeries, and rejected products from the food and beverage (F&B) industry (specifically creamer and milk), as BSFL substrates, while mapping the existing bioconversion sites. Data was collected through interviews, observations, and field measurements. Primary data included location details, technical specifications, implementation constraints, and BSFL bioconversion sites. Waste composition was analyzed via Loud Count Analysis during a 4-day sampling period. This research was conducted in Surabaya City and its surroundings. The results indicate that market waste mostly consists of dark green vegetables (26.5%), other vegetables (64.1%), and year-round fruits (53.9%). Furthermore, the daily average rejected bread is 2.6-2.7 kg. Rejected foods and beverages include creamers, liquids, and sweetened condensed milk. The facility processes 16.16 tons/day of substrate potential, producing 44.61 tons fresh larvae and 53.85 tons frass, with profits of IDR 58.1-969.6 million. The findings demonstrate significant potential for utilizing local organic waste as BSFL substrates in the study area.
Co-Authors Abd. Rasyid Syamsuri Abdul Kahar Adi Soeprijanto Adi, Trijoko Wahyu Adiputra, I Komang Hotra Arino Anzip Arna Puji Rakhmawati Atmaja, Sang Kompiang Rizki Putra Atthaya Namira Yulianto, Khenza Aulia Rodlia Fitriana Bagastyo, Arseto Yekti Biantara, I Wayan Arya Bieby Voijant Tangahu Cokorda Agung Wahyu Purnamasidhi Eko Sunarto Fitriana, Aulia Rodlia Hanh, Dang Vu Bich I Dewa Made Sukrama Jerry Joni Hermana Junia Istingadah Junior, Darren Kadek Diana Harmayani Komang Ayu Witarini Lailatun Nikmah Maisyah, Siti Marlena Marlena Martha Lumban Gaol Muhammad Naufal Muthmainnah, Melania Suweni Muntini Putu Tantri Kumala Sari Renia Setyo Utami Ria A.A Soemitro Shanti, Dewa Ayu Fony Prema Siti Mushlihah Sulfahri Sulfahri Sulistiya Nengse Susilawathi, Ni Made Talent Nia Pramestyawati Ursada, Riang Weisnawa, I Gede Purna Widya Prihesti Iswarani Wulandari, Putu Kintan Yustika Aristya Widyasari