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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Journal of Research and Technology Jurnal Cakrawala Maritim
Setiani, Vivin
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Environmental Science Industrial & Manufacturing Engineering

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Analisis Proximate Briket Tempurung Kelapa dan Ampas Tebu Setiani, Vivin; Setiawan, Adhi; Dhani, Mey Rohma; Maulidya, Risya Dwi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 2 (2019): Juli 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.318 KB) | DOI: 10.14710/presipitasi.v16i2.91-96

Abstract

Fossil fuels are a non-renewable energy source and their existence will be depleted. An alternative is needed that can reduce fossil fuels by using biomass. Biomass waste in the form of bagasse and coconut shell can be used as an alternative fuel in the form of biobriquette. This study aims to analyze the quality value of briquettes from the proximate test of the composition of bagasse and coconut shell produced with briquette quality standards that refer to SNI 01-6235-2000 about wood charcoal briquettes. The variables in this study consisted of five variables. The variables in this study were mass ratio coconut shells to bagasse were 90%: 10%, 80%: 20%, 70%; 30%, 60%: 40% and 50%: 50% respectively. The results of the test of water content, ash content, and volatile matter of the best quality briquettes of five variables were 90% coconut shell and 10% bagasse.
PENGARUH TREATMENT ALKALI TERHADAP KARAKTERISTIK FIBER SABUT KELAPA SAWIT DAN PELEPAH PISANG SEBAGAI BAHAN KOMPOSIT POLIMER Setiawan, Adhi; Setiani, Vivin; Hardiyanti, Fitri; Puspitasari, Devina
Journal of Research and Technology Vol 5, No 2 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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Abstract

The use of synthetic fibers in the fabrication of polymer composite materials has a negative impact on the environment. Natural fibers such as palm oil waste and banana pseudostem can be an alternative material for synthetic fibers because they are more economical, high specific strength, and environmentally friendly. The alkali treatment needs to be carried out on fibers for removal of lignin, hemicellulose, and impurity so that they can improve interfacial bonding between the fiber and the polymer matrix. The alkali treatment was carried out through fiber immersion in conditions without NaOH, 5% wt NaOH solution, and 10% wt for 24 hours. Fiber before and after alkalization were analyzed using Scanning Electron Microscope (SEM), X-Ray Difraction (XRD), Fourier Transform Infrared (FTIR), and Thermogravimetric  Analysis (TGA) methods. The results showed that alkali treatment was effective in removing the components of lignin, hemicellulose, and impurities in fiber. The result of the SEM was showed that the treated fiber surface has a cleaner surface than treatment without fiber. The alkali treatment process can improve the crystallinity and crystallinity index of the fiber due to amorphous component removal of lignin and hemicellulose. The TGA showed that palm oil fiber with alkali treatment and without alkali treatment a produced weight loss of 88,2% and 98,4% respectively. This showed that the alkali treatment can increase the thermal resistance of the palm oil fiber.
Pengembangan Sekolah Hijau Berbasis Pendidikan Lingkungan Hidup Pada Sekolah Menengah Mayangsari, Novi Eka; Pri Astuti, Ulvi; Erlan Afiuddin, Ahmad; Utami Dewi, Tanti; Nindyapuspa, Ayu; Setiani, Vivin; Amelia Novitrie, Nora; Apriani, Mirna; Vita Sophia, Alma
Jurnal Cakrawala Maritim Vol. 7 No. 2 (2024): Jurnal Cakrawala Maritim
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/jcm.v7i2.30

Abstract

Permasalahan lingkungan menjadi kepentingan bersama untuk diselesaikan semua elemen masyarakat. Berdasarkan kondisi tersebut, perlu adanya upaya untuk mencegah kerusakan lingkungan, yaitu dengan Pendidikan Lingkungan Hidup (PLH). Sekolah memiliki peranan yang penting dalam penerapan PLH melalui kegiatan sekolah hijau. SMK Negeri 1 Surabaya merupakan salah satu sekolah yang sudah menerapkan kegiatan berbasis sekolah hijau. Namun masih diperlukan pengembangan-pengembangan untuk meningkatkan peran serta dalam pelestarian lingkungan. Sehingga tujuan dari kegiatan ini yaitu dapat dipahami terkait kegiatan yang mendukung sekolah hijau, meningkatkan kualitas sekolah dan lingkungan, dan mengembangkan manajemen sekolah berwawasan lingkungan. Berdasarkan kegiatan ini, dilakukan sosialisasi dengan materi pemanfaatan sampah menjadi kompos, pengelolaan limbah plastik, dan emisi karbon serta implementasinya. Hasil yang didapatkan bahwa SMKN 1 Surabaya sangat antusias dalam mengikuti kegiatan sosialisasi untuk mendukung sekolah hijau, serta memahami materi sosialisasi yang telah disampaikan. Selain itu dilakukan implementasi dari sosialisasi yaitu dengan melakukan pengomposan metode BSF. Pengomposan berhasil dilakukan dan menghasilkan produk berupa pupuk kompos dan larva BSF yang tinggi protein untuk pakan ternak.
Technical Feasibility Analysis of Processing Food Waste into Organic Fertilizer with Black Soldier Fly Composting Method Astuti, Ulvi Pri; Setiani, Vivin; Putri, Anindya Taffana; Hayati, Debby Zintya; Fadilla, Laras Nur; Aviantari, Maura Diza; Setyawati, Emeralda Eka Putri
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.747-758

Abstract

Food waste is a major issue in Indonesia, accounting for 41.97% of waste generated. This untreated waste can lead to the production of greenhouse gases. However, food waste has the potential to be composted due to its high nutrient content. The purpose of this study was to analyze the technical feasibility of processing food waste using the Black Soldier Fly (BSF) composting method for organic fertilizer production. The study used variations of fish waste and reject milk as composting mixtures, with percentages of 100% food waste, 70% food waste and 30% cow manure, and 30% food waste and 70% fish waste. The dimensions of the BSF composting reactor were 56 cm x 43 cm x 20 cm. The research was conducted for 15 days with the addition of local microorganisms (MoL) to accelerate the degradation process. Various parameters such as pH, moisture content, C-Organic, nitrogen, phosphorus, and potassium were analyzed. The results showed that all variations met the required compost quality standards, it which was technically feasible to be used as organic fertilizer using the BSF composting method. The results of this study can improve the circular economy because compost and bsf larvae products have many benefits if traded.
Design of Temporary Storage for Hazardous Waste at Politeknik Perkapalan Negeri Surabaya Setiani, Vivin; Sholihah, Mar'atus; Kurniasih, Dewi; Widiarti, Yuning; Budiyanto, Ekky Nur; Khumaidi, Agus; Wibowo, Sekarsari; Setyawati, Emeralda Eka Putri; Astutik, Rina Puji
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.275-286

Abstract

Politeknik Perkapalan Negeri Surabaya has workshops or laboratories that generate hazardous waste from practical learning activities. Currently, hazardous waste is not stored in accordance with regulations, it will pose a danger to the environment and human health. Therefore, this research requires a design for hazardous waste storage that complies with the Minister of Environment and Forestry Regulation number 6 of 2021. The design of fire extinguisher requirements is based on the Regulation of the Minister of Manpower and Transmigration of the Republic of Indonesia No. Per.04/Men/1980 and the design of lighting based on SNI 03-6575-2001. This research discusses the design of hazardous waste storage, including the characteristics of hazardous waste, the design of packaging and the supporting facilities. The characteristics of hazardous waste at the Politeknik Perkapalan Negeri Surabaya consist of flammable waste, toxic waste, and infectious waste. While, the packaging for hazardous waste is equipped with symbols and labels according to their characteristics and volume. The design of the hazardous waste storage building at the Politeknik Perkapalan Negeri Surabaya has dimensions of 11 m x 7 m, equipped with 12 lights and light fire extinguishers, taking into account the location, facilities, and emergency response.
The Effect of adding Coconut Shells and Corn Husk to Biobriquettes from Fish Bone Waste Nindyapuspa, Ayu; Setiani, Vivin; Firnanda, Dhea Ayu
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.393-404

Abstract

Biomass generates a large amount of waste. One of these is fish bones, corn husks, and coconut shells. Fish bone waste has the potential to be used as biobriquettes because it contains 10.16% carbon. To maximize the potential of fish bone waste, it should be mixed with corn husks and coconut shells. In addition, more calories can be added to the biobriquettes.  In the manufacture of biobriquettes, pyrolysis temperature also affects the quality of the resulting biobriquettes. The purpose of this study was to determine the quality of biobriquettes with a mixture of fish bones, corn husks, and coconut shells at 5000C and 3500C. The compositions of the biobriquette materials used in this study were 100% fish bone waste, fish bone:coconut shell waste (50:50), and fish bone waste:corn husk (50:50). The results of the study showed that biobriquettes with a mixture of fish bones and coconut shell 50:50 at a pyrolysis temperature of 350 °C had the best quality according to SNI 01-6235-2000 concerning wood charcoal briquettes. The water content and calorific value were 1.93% and 5,913.6 cal/g, respectively. The addition of coconut shells and corn husks affected the characteristics of biobriquettes made from fish bone waste. 
Co-Authors Adhi Setiawan Agus Khumaidi Amelia Novitrie, Nora Apriani, Mirna Astutik, Rina Puji Aviantari, Maura Diza Budiyanto, Ekky Nur Dewi Kurniasih Dhani, Mey Rohma Erlan Afiuddin, Ahmad Fadilla, Laras Nur Firnanda, Dhea Ayu Fitri Hardiyanti Hayati, Debby Zintya Maulidya, Risya Dwi Nindyapuspa, Ayu Novi Eka Mayangsari Puspitasari, Devina Putri, Anindya Taffana Setyawati, Emeralda Eka Putri Sholihah, Mar'atus Ulvi Pri Astuti Utami Dewi, Tanti Vita Sophia, Alma Wibowo, Sekarsari Yuning Widiarti, Yuning