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Jurnal Teknik ITS
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Engineering
Jurnal Teknik ITS merupakan publikasi ilmiah berkala yang diperuntukkan bagi mahasiswa ITS yang hendak mempublikasikan hasil Tugas Akhir-nya dalam bentuk studi literatur, penelitian, dan pengembangan teknologi. Jurnal ini pertama kali terbit pada September 2012, dimana setiap tahunnya diterbitkan 1 buah volume yang mengandung tiga buah issue.
Arjuna Subject : -
Articles 156 Documents
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Search results for , issue "Vol 8, No 2 (2019)" : 156 Documents clear
Penentuan Lokasi Alternatif TPA (Tempat Pembuangan Akhir) Sampah di Kabupaten Klungkung Dewa Made Satria Wijayakusuma; Putu Rudy Satiawan
Jurnal Teknik ITS Vol 8, No 2 (2019)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.697 KB) | DOI: 10.12962/j23373539.v8i2.47426

Abstract

Produksi sampah di Kabupaten Klungkung terus meningkat dari tahun ke tahun. Selain itu, TPA Sente yang sudah beroperasi sejak tahun 1990-an mengalami overload pada tahun 2017 lalu mengalami penutupan dan tidak difungsikan sebagai TPA sejak tahun 2018 sehingga tidak ada lagi TPA skala kabupaten yang melayani wilayah Klungkung daratan. Berdasarkan Peraturan Daerah Provinsi Bali nomor 5 tahun 2011, pada pasal 22 menyatakan bahwa Pemerintah Kabupaten/Kota wajib melakukan pengolahan sampah skala kawasan dan/atau skala kota secara aman bagi kesehatan dan lingkungan, sehingga perlu diadakan suatu penelitian guna mencari alternative-alternatif lokasi TPA pengganti untuk melayani wilayah Klungkung Daratan. Tujuan dari penelitian ini adalah untuk menentukan lokasi-lokasi alternative TPA sampah di Kabupaten Klungkung. Tahapan penelitian yang dilakukan guna mencapai tujuan penelitian tersebut adalah yang pertama menentukan faktor-faktor prioritas penentuan lokasi TPA sampah di Kabupaten Klungkung, dengan metode analisa AHP (Analytical Hierarchy Process). Selanjutnya yaitu tahapan menentukan lokasi-lokasi prioritas alternatif TPA sampah berdasarkan skor kesesuaian lahan. Metode analisa yang digunakan dalam tahapan ini adalah menggunakan metode Weighted Overlay pada GIS dan metode AHP. Hasil dari penelitian ini terdapat 14 alternatif lokasi TPA sampah di Kabupaten Klungkung yang didasarkan dengan 11 variabel yang digunakan, dari ke-14 alternatif lokasi tersebut terdapat 2 prioritas alternative lokasi TPA yang berada di Kecamatan Dawan.
Arahan Pengembangan Infrastruktur di Negeri Atas Angin Kecamatan Sekar Kabupaten Bojonegoro Naufal Pesdo Azkadinitra; Arwi Yudhi Koswara
Jurnal Teknik ITS Vol 8, No 2 (2019)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373539.v8i2.47666

Abstract

Desa Deling Kecamatan Sekar memiliki lokasi yang masih alami serta memiliki objek wisata yang menarik yaitu Negeri Atas Angin. Wisata Negeri atas Angin merupakan salah satu wisata alam yang ada di Kabupaten Bojonegoro. Daya tarik dari wisata ini adalah objek wisata bukit cinta yang menawarkan keindahan alam pedesaan yang indah layaknya seperti diatas awan. Keindahan alam pedesaan yang indah memang merupakan hal yang jarang terjadi diberbagai tempat. Selain itu, Kecamatan Sekar juga mempunya makanan yang cukup terkenal yaitu Kripik singkong. Wisata Negeri Atas Angin juga memiliki objek wisata berupa goa yang dipenuhi batuan yang indah. Goa ini dulunya sering di buat bertapa oleh salah satu pendiri dari nama Kabupaten Bojonegoro. Kondisi Wisata Negeri Atas Angin masih belum optimal. Hal tersebut dapat dilihat dari ketersediaan fasilitas fasilitas Infrastruktur yang ada masih belum lengkap. Karena fasilitas infrastruktur yang belum menunjang wisatawan, dampaknya kondisi lingkungannya semakin buruk. Jumlah wisatawan yang datang juga tidak menentu. Dalam Penelitian ini menggunakan tiga analisis yaitu, analisis deskriptif identifikasi karakteristik kawasan wisata Negeri Atas Angin untuk mendapatkan kondisi eksisting infrastruktur dan karakteristik infrastruktur wisata yang ada, lalu analisis tingkat kepentingan infrastruktur pariwisata di daerah Negeri Atas Angin menggunakan analisis IPA(Importance-performance analysis), dan yang terakhir analsis deskriptif untuk arahanpengembangannya. Hasil dari analisis deskriptif karakteristik dan tingkat kepenntingan infrastruktur dibuat untuk arahan pengembangannya. Hasil penelitian yang pertama didapatkan infrastruktur eksisting pariwisata. Kemudian, berdasarkan hasil IPA, ditemukan prioritas infrastruktur yang dibutuhkan pengunjung, dan yang terakhir dekskriptiv pengembangan infrastruktur berdasarkan hasil analisis pertama dan kedua
Degradation of Hydrogen Sulfide in Stillage as Ethanol Industrial Waste by Acidithiobacillus thiooxidans and Pseudomonas putida with Aerobic Biofiltration Method in Bioreactor Vivi Alvionita Sari; Sri Rachmania Juliastuti
Jurnal Teknik ITS Vol 8, No 2 (2019)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (880.451 KB) | DOI: 10.12962/j23373539.v8i2.49728

Abstract

Stillage or vinasse is a by-product or waste from the fermentation-distillation process of the bioethanol industry. Stillage is the bottom product of the ideal distillation column. Stillage has a high sulfur content. In this waste, the sulfur content was 1680 mg/L. This liquid wastes are dangerous if it discharges directly into the environment without pretreatment.  For this reason, pretreatment is needed to reduce the sulfur concentration of liquid waste (stillage) using biofiltration method. The objective of this research is to eliminate the content of H2S or sulfur in the wastewater of the bioethanol industry (stillage) by using aerobic bacteria such as Acidithiobacillus thiooxidans dan Pseudomonas putida. The method of this experimental work used biofiltration which are attached on wood chips by aerobic bacterial to form biofilms in the reactor. The process in this study was conducted in two steps. The first step was carried out by sulfur oxidizing bacteria such as A.thiooxidans and P. putida with a concentration of 10% and 20% (v/v) that growth on packing to form biofilms in the reactor for 13 days. Furthermore, as the second step the bacteria degraded H2S content of liquid waste with attached bacteria on packing for 15 days in biofiltration reactor. From the preliminary results of this study, reactor with 10% (v/v) A. thiooxidans on wood chips packing and 30% (v/v) concentration stillage can degraded H2S from 4.90 mg/L to 2.61 mg/L (46.73% removal efficiency) and for reactor with 20% (v/v) A. thiooxidans can degraded H2S from 4.90 mg/L to 2.43 mg/L (50.41% removal efficiency). Meanwhile, reactor with 10% (v/v) P. putida can degraded H2S from 4.90 mg/L to 2.90 mg/L (40.82% removal efficiency) and for reactor with 20% (v/v) P. putida can degraded H2S from 4.90 mg/L to 2.84 mg/L (42.04% removal efficiency).
Environmental Impact Evaluation Using Green Value Stream Mapping (Green-VSM) and Life Cycle Assessment (LCA) Aufar Fikri Dimyati; Moses Laksono Singgih
Jurnal Teknik ITS Vol 8, No 2 (2019)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.988 KB) | DOI: 10.12962/j23373539.v8i2.49344

Abstract

PT. AI is an industry that moves their business in the agro-industrial sector. One of their products is insecticide that has cypermethrin (hazardous material) and xylene (flammable material) as the main materials in a formulation process. Moreover, PT. AI also use aluminum and corrugated box as the packaging materials. By utilizing Green-VSM (process visualization) and LCA (environmental impact assessment), this study is intended to assess each production process of the insecticide and the environmental impact that is caused by process, material and waste that occurs within each process. Furthermore, the identification of improvement opportunities for reducing environmental impact will be done. Based on this study, the existing condition of the process causes environmental impact towards human health of 0.01 DALY (714 points), ecosystem quality of 361.45 PDF*m2y (20.528 Points) and resources of 5.9 MJ (0.8 points). By analyzing the existing condition there are four improvement opportunities that are identified. The first opportunity is redesigning the current corrugated box design, which reduces the environmental impact for 8.675 points from material use reduction. The second opportunity is having a sorting activity towards the cap of the bottle which reduce environmental impact for 3.548 points. The third opportunity is changing into a new procedure towards the box sealing process which reduces environmental impact for 0.0008 points. The fourth improvement is substituting material towards bottle material (from supplier) packaging into the duplex board which reduces environmental impact for 2.915 points. Those improvements opportunities in total are expected to reduce the environmental impact for 15.138 points.
Analysis of Stiffness Modulus of Asphalt Concrete Mixture by Using Artificial Aggregates Gusti Made Bagus Baskara; Ervina Ahyudanari; I Nyoman Arya Thanaya
Jurnal Teknik ITS Vol 8, No 2 (2019)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (630.023 KB) | DOI: 10.12962/j23373539.v8i2.49666

Abstract

The type of damage to the pavement layer is cracking and permanent deformation. The mechanism of cracking in the pavement layer occurs because of the tensile force at the bottom of the pavement layer due to the wheel load of the vehicle. One parameter of a mixture to achieve strength and durability as needed is the relationship of stress and strain which shows the stiffness of a mixture. Indirect Tensile Strength is a method used to show the stiffness of a mixture. As infrastructure development in Indonesia continues to increase, the availability of natural aggregate materials is decreasing. One of the uses of geopolymer can be used as artificial aggregates to replace the depleted natural aggregates. The purpose of this study was to review the stiffness modulus of concrete asphalt mixture with the use of artificial aggregates made from geopolymer by using open gradations of BBA (Beton Bitumineux pour chausees Aeronautques). From the test results using the Dynapave UTM30 tool at 20 °Celsius and 60 °Celsius, stiffness modulus values of the asphalt mixture are 3542 MPa and 147 MPa. The increase in temperature causes a decrease in the stiffness modulus value of 96%, so that the increase in temperature will be accompanied by a decrease in the stiffness modulus.
Synthesis of TiO2/Zeolite-A Composite for The Removal of Methylene Blue on Direct Sunlight Yasokhi Fatkhasari; Nafiah Afuw Rouf; Wahida Annisa Ermadayanti; Randy Yusuf Kurniawan; Arseto Yekti Bagastyo
Jurnal Teknik ITS Vol 8, No 2 (2019)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.402 KB) | DOI: 10.12962/j23373539.v8i2.49669

Abstract

Wastewater generated from textile industry contains azo dye, (e.g., methylene blue), which is inefficient to decompose by using biological processes, and requires long treatment time. TiO2 is the most widely used adsorbent for industrial applications and photocatalytic degradation of various azo dyes in textile wastewater. Its anatase is the most effective and widely used photocatalyst, however the wide band gap of TiO2 has limited its widespread application in industry since it needs to be excited by ultraviolet (UV) light. In order to overcome this issue, combination of adsorbent zeolite and TiO2 into the composite was used in this study so that TiO2 can adsorb methylene blue under direct sunlight. Composition of 1 g TiO2 and 1 g Zeolite composite was used in batch method to eliminate different methylene blue concentrations, i.e., 25; 50; 75; 100; 125; 150; 200; and 250 ppm by means of adsorption process under direct sunlight. The experimental result showed that addition of zeolite was able to considerably improve adsorption capacity of TiO2 on direct sunlight in the range of 97.2 – 99.3 % of methylene blue removal. The highest removal was observed in the case of lower concentrations of methylene blue, i.e., in the range of 25-50 ppm.

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