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All Journal Equilibrium Journal of Chemical Engineering TEKTAN Jurnal Pengabdian Nasional Proceeding Applied Business and Engineering Conference Electrician : Jurnal Rekayasa dan Teknologi Elektro Jurnal abimana (Jurnal Pengabdian Kepada Masyarakat Nasional)
Iskandar Zulkarnain
Politeknik Negeri Lampung
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Deteksi Zona Rawan Tsunami Pesisir Kota Bandar Lampung Menggunakan Data Geospasial Berbasis Sistem Informasi Geografis Iskandar Zulkarnain; I gde Darmaputra; Aniessa Rinny Asnaning
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 3 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i3.1933

Abstract

The Bandar Lampung coastal area naturally has the potential of a tsunami hazard. Historically the coastal area of Bandar Lampung City had been hit by a tsunami with a height of 10-30 meters in 1883 when the eruption of Mount Krakatau occurred. The partial collapse of Mount Krakatau, which occurred at the end of 2018, also had a tidal wave impact as high as 1-2 meters in the Bandar Lampung coastal area. This study aims to produce Thematic Maps of Tsunami Hazard Zones in the Coastal Areas of Bandar Lampung City as a source of information for the community and stakeholders. The method used is spatial analysis with GIS through the overlay method. The result shown that eight sub district in Bandar Lampung City are prone to tsunami hazards with risk categories up to very high risk categories.
PENINGKATAN NILAI TAMBAH MINYAK SEREH WANGI MELALUI PEMBUATAN BALSEM CITRONELLA wati, Shinta; Widodo, Yatim R; Arifin, Zainal; Rina, Oktaf; Zulkarnain, Iskandar
Jurnal Pengabdian Nasional Vol 1 No 1 (2020)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jpn.v1i1.1599

Abstract

Kelompok Tani Hutan (KTH) Agro Sumber Rejeki atas inisiatif sendiri telah membudidayakan sereh wangi (Cymbophogon nardus) sejak tahun 2016 sebagai tanaman sela di wilayah hutan produksi Register 40, Kabupaten Lampung Selatan. KTH memproduksi minyak serehwangi secara rutin sebanyak 2,5 liter/hari. Kendala yang dihadapi KTH saat ini adalah keterbatasan jumlah pasar minyak sereh wangi di Provinsi Lampung dan belum dimilikinya pengetahuan serta keterampilan masyarakat akan manfaat dan teknis pembuatan produk-produk berbasis minyak sereh wangi. Tujuan dari kegiatan pengabdian masyarakat ini adalah meningkatkan pengetahuan masyarakat akan manfaat minyak sereh wangi, meningkatkan pemahaman tentang persyaratan obat tradisional serta meningkatkan keterampilan teknis dalam memproduksi balsem sereh wangi. Metode pengabdian masyarakat ini dilaksanakan dengan penyuluhan berupa ceramah langsung dan pelatihan pembuatan balsem citronella. Hasil evaluasi kegiatan menunjukkan adanya peningkatan pengetahuan manfaat minyak sereh wangi dan persyaratan obat luar serta keterampilan teknis pembuatan sebesar 61 poin dari nilai awal sebelum dimulainya kegiatan pengabdianKata kunci: Minyak Sereh Wangi, Balsem 
Utilization of Construction Concrete Waste as Aggregate Substitutes in Normal Concrete Production Zulkarnain, Iskandar; Asnaning, Aniessa Rinny; Desniati, Emmi; Balqis, Tanya Audia
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The construction process frequently necessitates the demolition of existing structures, resulting in substantialconstruction waste. A significant portion of this waste comprises demolition debris, particularly from concrete buildingmaterials. This research aims to develop standard concrete by partially substituting conventional coarse and fineaggregates with concrete waste materials. The substitutions involved replacing 25% and 50% of sand and gravel,respectively, by weight, using a K300 concrete mix design. Adopting the SNI 03-2834-2000 method, the mix design for 1cubic meter of concrete comprised cement (528 kg), sand (776.16 kg), gravel (807.04 kg), and water (205 kg). Theresults indicated an average sample weight reduction, with the first sample at 12.91 kg, the second at 12.79 kg, and thethird at 12.77 kg. This weight decrease suggests that using waste as a partial aggregate substitute impacts concretedensity. Compressive strength tests revealed a reduction of 5.98% in the concrete containing a 25% waste mixture, withaverage compressive strength declining from 307.22 kg/cm² to 288.94 kg/cm². A more pronounced reduction occurred inthe 50% waste mixture, where compressive strength decreased by 15.70% (from 307.22 kg/cm² to 259.06 kg/cm²). Thistrend aligns with the understanding that higher waste content correlates with greater mechanical strength reduction, likelydue to the differing physical properties of waste materials, such as lower density, which impact overall concreteperformance, particularly in compressive strength.
Pendekatan Regresi Linier dalam Penyempurnaan Akurasi Pembacaan Sensor TDS pada Sistem Hidroponik Pratama Zuhelmi, Tomy; Rinny Asnaning, Aniessa; Zulkarnain, Iskandar
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 18 No. 3 (2024)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v18n3.2732

Abstract

PENGENALAN DAN PELATIHAN APLIKASI SUPERPRO DESIGNER KEPADA GURU SMKN 8 BANDAR LAMPUNG Fadian Farisan Silmi; Yeni Ria Wulandari; Yeni Variyana; Amelia Sri Rezki; Dedi Teguh; Dewi Ermaya; Shintawati Shintawati; Iskandar Zulkarnain
Jurnal Abimana (Jurnal Pengabdian Kepada Masyarakat Nasional) Vol 1 No 1 (2024): Mei
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/abimana.v1i1.3544

Abstract

Pelaksanaan pendidikan berpedoman pada kurikulum yang telah disusun secara sistematis dan bertahap yang diterapkan dalam proses pembelajaran. Pengembangan pendidikan Sekolah Menengah Kejuruan (SMK) di Indonesia harus diarahkan untuk beradaptasi dengan dinamika global dan nasional khususnya terhadap Revolusi Industri 4.0 saat ini, menyesuaikan dengan kebutuhan dunia kerja dengan menyempurnakan kurikulum dan mengintegrasikan dengan banyak pemangku kepentingan. SMK Negeri 8 Bandar Lampung berdiri berdasarkan Surat Keputusan Wali Kota Bandar Lampung Nomor 511/14.40/HK/2014 tanggal 11 April 2014. Kurikulum yang digunakan di SMK Negeri 8 Bandar Lampung adalah Kurikulum Merdeka. Bandar Lampung saat ini adalah terbatasnya pengetahuan dan keterampilan guru dalam pemanfaatan teknologi software engineering SuperPro Designer yang digunakan dalam bidang Teknik Kimia Industri. Padahal SMKN 8 Bandar Lampung memiliki fasilitas Laboratorium Komputer yang memadai namun belum terpasang software pendukung lanjutan Teknik Kimia khususnya aplikasi SuperPro Designer. Dengan adanya kegiatan PKM ini diharapkan fasilitas pendukung dalam proses belajar dalam hal ini aplikasi SuperPro Designer dapat meningkatkan pengetahuan dan keterampilan guru di SMKN 8 Bandar Lampung.
The Effect of HCl Activator on PET Adsorbent to Reduce Phosphate Content in Laundry Waste Lutfi Wahidatur Rizky; Iskandar Zulkarnain; Ismadi Raharjo; Yeni Ria Wulandari
Equilibrium Journal of Chemical Engineering Vol 8, No 1 (2024): Volume 8, No 1 July 2024
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v8i1.84179

Abstract

Plastic waste is waste that cannot be decomposed so it will cause serious problems to the environment. The National Waste Management Information System (SIPSN) reported that in 2020 plastic waste was found to be 17.2% of the total waste collected. Several types of plastic can become porous charcoal through the heating process in a furnace so that it can be used as an adsorbent for liquid waste from the laundry industry. Laundry liquid waste containing excess phosphate will disrupt the environment such as eutrophication. This research aims to determine the effect of the HCl activator on carbon from polyethylene terephthalate (PET) plastic bottle waste to reduce phosphate levels in liquid laundry waste. This research uses varying concentrations of HCl as a carbon activator, namely 1M, 5M, and 10M. The activated carbon is added to the liquid laundry waste and stirred at a speed of 100 rpm. Phosphate content analysis was carried out using a spectrophotometer in liquid laundry waste before and after the adsorption process and BET (Brunauer-Emmet-Teller) analysis on activated carbon with activator HCl 10 M. The greatest decrease in phosphate levels was 10 M HCl concentration of 52.87%, with a carbon surface area of 203.1222 m²/g and a particle size of 29.53 nm. The adsorption capacity of activated carbon with a 10 M activator is 0.1499 mg/g. Keywords:PET, Adsorbent, HCl, Laundry Waste, Phosphate 
Co-Authors Amelia Sri Rezki Andy Eka Saputra Aniessa Rinny Asnaning Asnaning, Aniessa Rinny Dedi Teguh Dewi Ermaya Emmi Desniati Fadian Farisan Silmi I Gde Darmaputra Ismadi Raharjo Ismadi Raharjo Kelik Istanto Kelik Istanto Kuswadi, Didik Lutfi Wahidatur Rizky Oktaf Rina Pratama Zuhelmi, Tomy Rinny Asnaning, Aniessa Shintawati Shintawati Suprapto Suprapto Tanya Audia Balqis Variyana, Yeni Wati, Shinta Widodo, Yatim R Wulandari, Yeni Ria Yuni Laras Setyawati Zainal Arifin