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All Journal Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Dampak Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Journal Of Chemical Process Engineering JURNAL REKAYASA KIMIA & LINGKUNGAN Nemui Nyimah
Dewi Agustina Iryani, Dewi Agustina
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Social Sciences Other

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PENGARUH TOREFAKSI TERHADAP SIFAT KIMIA PELET TANDAN KOSONG KELAPA SAWIT Rani, Irma Tya; Hidayat, Wahyu; Febryanto, Indra Gumay; Iryani, Dewi Agustina; Haryanto, Agus; Hasanudin, Udin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 2 (2020): Juni 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (580.403 KB) | DOI: 10.23960/jtep-l.v9i2.%p

Abstract

Corrigendum to: PENGARUH TOREFAKSI TERHADAP SIFAT KIMIA PELET TANDAN KOSONG KELAPA SAWIT
Pemanfaatan Limbah Fly Ash dan Spent Bleaching Earth sebagai Substitusi Semen pada Beton Mutu Normal Skala Produksi Nababan, Otto Lambok Raya; Iryani, Dewi Agustina; Wahono, Endro Prasetyo; Rinawati, Rinawati
Dampak Vol 20, No 2 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.20.2.93-99.2023

Abstract

In the era of industry and technology in Indonesia, environmental problems due to waste are problems that require wise handling. Fly Ash (FA) waste from PLTU activities and Spent Bleaching Earth (SBE) waste resulting from the palm oil production process are very abundant, thus polluting the environment. Indonesia is currently prioritizing physical infrastructure development, which aims to improve connectivity and encourage economic growth in every sector. The development process that occurs increases the use of concrete. Concrete has a tremendous impact on the environment because most of its composition is cement. The use of cement in the manufacture of concrete results in the emission of large amounts of CO2 gas into the atmosphere, which causes an increase in global warming. The use of concrete can have a lower environmental impact if the use of cement is reduced as much as possible by adding a mixture of FA and SBE wastes. This research will utilize FA and SBE waste in the manufacture of normal concrete production weights and aim to determine the optimal composition of FA and SBE waste that is economically and environmentally feasible. The results of the research by applying FA and SBE substitutions show that FA is better than bleaching earth in the resulting compressive strength. The optimal composition of FA as a substitute for cement to achieve the quality of the planned concrete is 15%, while the composition of SBE as a substitute for cement is 10%. Keywords: concrete, Fly Ash (FA), Spent bleaching earth (SBE), concrete compressive strength  ABSTRAK In the era of industry and technology in Indonesia, environmental problems due to waste are problems that require wise handling. Fly Ash (FA) waste from PLTU activities and Spent Bleaching Earth (SBE) waste resulting from the palm oil production process are very abundant, thus polluting the environment. Indonesia is currently prioritizing physical infrastructure development, which aims to improve connectivity and encourage economic growth in every sector. The development process that occurs increases the use of concrete. Concrete has a tremendous impact on the environment because most of its composition is cement. The use of cement in the manufacture of concrete results in the emission of large amounts of CO2 gas into the atmosphere, which causes an increase in global warming. The use of concrete can have a lower environmental impact if the use of cement is reduced as much as possible by adding a mixture of FA and SBE wastes. This research will utilize FA and SBE waste in the manufacture of normal concrete production weights and aim to determine the optimal composition of FA and SBE waste that is economically and environmentally feasible. The results of the research by applying FA and SBE substitutions show that FA is better than bleaching earth in the resulting compressive strength. The optimal composition of FA as a substitute for cement to achieve the quality of the planned concrete is 15%, while the composition of SBE as a substitute for cement is 10%. Kata kunci: beton, Fly Ash (FA), Spent bleaching earth (SBE), kuat tekan beton      
Sintesis Zeolit Lynde Type-A (LTA) Dari Zeolit Alam Lampung (Zal) Menggunakan Metode Step Change Temperature Of Hydrothermal Dengan Variasi SiO2/Al2O3 Diaplikasikan Untuk Dehidrasi Etanol Br.Ginting, Simparmin; Sari, Devi Permata; Iryani, Dewi Agustina; Darmansyah, Darmansyah; Hanif, Muhammad; Wardono, Herry
Journal of Chemical Process Engineering Vol. 4 No. 1 (2019): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v4i1.836

Abstract

Zeolit Lynde Type-A (LTA) merupakan zeolit sintesis yang bergunasebagai adsorben, katalis, membran, penukar ion, dan molecular sieve. Memiliki kemampuan dehidrasi yang tinggi sehingga digunakan untuk dehidrasi air dalam campuran etanol-air. Penelitian ini bertujuan untuk memperoleh zeolit LTA sintesis dari variasi rasio SiO2/Al2O3 terbaik agar diperoleh persen kristalinitas yang tinggi sehingga didapatkan etanol yang sesuai dengan FGE (Fuel Grade Ethanol), yaitu kemurnian mencapai >99%. Variasi rasio SiO2/Al2O3 pada penelitian ini adalah 1; 1,2; 1,4 dan 1,8 mol/mol. Sumber silika dan alumina yang digunakan berasal dari Zeolit Alam Lampung (ZAL). Tahapan sintesis dilakukan pada sebuah water bath dengan metode step change temperature pada 90oC selama 1,5 jam dan 95oC selama 2,5 jam. Berdasarkan analisis XRD didapatkan persen kristalinitas tertinggi pada rasio SiO2/Al2O3 1,8 mol/mol sebesar 71,39 %. Hasil analisis FTIR terdapat ciri khas zeolit LTA yaitu adanya double rings pada bilangan gelombang 500-650 cm-1. Hasil analisis BET didapatkan zeolit LTA berukuran mesopori dan tergolong dalam loop histerisis tipe H3. Dari hasil uji dehidrasi adsorptif etanol-air diperoleh kemurnian etanol tertinggi pada rasio SiO2/Al2O3 1,8 mol/mol sebesar 99,56 %. Pola isoterm adsorpsi air mengikuti model isoterm Langmuir dengan nilai R2 = 0,995, kapasitas adsorpsi qm= 0,8217 mg air/g adsorben dan intensitas adsorpsi Ka = 0,0231. Kinetika adsorpsi air oleh zeolit LTA sintetis sesuai dengan model kinetika adsorpsi pseudo orde 2 dengan nilai tetapan laju reaksi sebesar 0,3065 g/(min-mg) dan nilai qe sebesar 0,2695 g air/g adsorben.
Heavy Metal Adsorption Using Cellulose Xanthate from Sugarcane Bagasse: A Fixed-Bed Column Study Iryani, Dewi Agustina; Permadi, Sigit; Astuti, Widi; Sumardi, Slamet; Taharuddin, Taharuddin
Jurnal Rekayasa Kimia & Lingkungan Vol 20, No 1 (2025): Jurnal Rekayasa Kimia & Lingkungan (June, 2025)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v20i1.38058

Abstract

In recent years, various environmentally friendly adsorbents have been developed to address the removal of heavy metals from industrial wastewater. This study focuses on the adsorption of lead (Pb) and copper (Cu) using cellulose xanthate derived from sugarcane bagasse as an adsorbent. The adsorption experiments were conducted in a fixed-bed column with dimensions of 2.4 cm in diameter and 8 cm in height. Atomic Absorption Spectrophotometry (AAS) was used to analyze the concentrations of Pb and Cu before and after adsorption, while the adsorbent composition was characterized using X-Ray Fluorescence (XRF). The breakthrough times for Pb and Cu adsorption was found to be 8 and 6 minutes, respectively, with total adsorption durations of 18.584 and 17.543 minutes. The Thomas Model was employed to evaluate the kinetics and adsorption capacity, yielding kinetic constants (KTH) of 0.00283 and 0.0006 mL/mg.min for Pb and Cu, respectively, and adsorption capacities (qeq) of 712.89 and 181.18 mg/g. These results provide valuable insights into the adsorbents efficiency, kinetics, and potential applications in environmental remediation and wastewater treatment.
PELATIHAN PEMBUATAN KOPI PEPPERMINT PADA KELOMPOK WANITA TANI (KWT) SEBAYA DI KECAMATAN KASUI, KABUPATEN WAY KANAN Kustyawati, Maria Erna; Iryani, Dewi Agustina; Rizal, Samsul; Endaryanto, Teguh
Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol. 1 No. 2 (2022): Jurnal Pengabdian Fakultas Pertanian Universitas Lampung
Publisher : Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpfp.v1i2.5739

Abstract

Upaya untuk mempertahankan ikon Kopi Lampung sangat perlu dilakukan terus menerus. Salah satu upaya yang dapat dilakukan yaitu melalui diversifikasi menjadi produk kopi herbal. Produksi kopi herbal merupakan terobosan yang penting dilakukan untuk menghasilkan produk kopi bubuk dengan aroma dan cita rasa barvariasi dan mempunyai manfaat yang lebih baik bagi kesehatan. Diversifikasi produk kopi bubuk Herbal beraroma mint ini dapat digunakan sebagai solusi terhadap sumber pendapatan petani kopi maupun bagi industri olahan kopi yang belum menggembirakan khususnya di Kecamatan Kasui, Way Kanan. Kopi Way Kanan yang mempunyai ciri khas daerah yang telah berHaki terkait indikasi Geografis dengan nama Kopi Robusta Lampung sesuai nomor 000000026 tanggal pendaftaran 13 Mei 2014. Permasalahan akan muncul di setiap upaya inovasi produk baru. Permasalahan utama yang dihadapi petani industri olahan kopi dalam upaya memproduksi kopi bubuk herbal adalah cara mencampur kopi bubuk dengan senyawa herbal agar menghasilkan kopi bubuk dengan rasa herbal tertentu dan memiliki rasa dan aroma yang cocok bagi masyarakat peminum kopi. Oleh karena itu, kegiatan pengabdian kepada masyarakat ini dilaksanakan dengan tujuan untuk: (1) melatih dan mendampingi mitra industri olahan kopi mulai dari pemilihan biji dan teknik sangrai yang baik (roasting), (2) memberikan pelatihan tentang teknik mencampur kopi bubuk dengan herbal, (3) teknik produksi dan pengemasan kopi herbal. Hasil dari kegiatan pelatihan ini meunjukkan bahwa sebanyak 70% peserta KWT telah mampu memproduksi kopi bubuk herbal aroma mint dan telah dapat menghasilkan produk kopi herbal siap jual dengan kemasan yang baik.
INTRODUKSI KOMPOR PELLET BIOMASSA BAGI UKM MINYAK ATSIRI DI KECAMATAN BANDAR MATARAM KABUPATEN LAMPUNG TENGAH Iryani, Dewi Agustina; Damayanti, Sri Ismiyati; Ginting, Simparmin Br; Azhar, Azhar
Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat Vol 4 No 1 (2023): Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/abdilaksana.v4i1.28386

Abstract

Proses penyulingan minyak serai wangi sangat bergantung dari pasokan bahan bakar karena proses penyulingan membutuhkan pasokan panas untuk mempercepat proses penguapan. Saat ini, proses produksi minyak serai yang dilaksankan oleh UKM/perajin di Indonesia umumnya masih menggunakan cara tradisional yaitu dengan peralatan tungku dan ketel sederhana yang tidak memenuhi standar efisiensi energi dan cenderung menimbulkan banyak polusi. Oleh karenanya, dirasa perlu untuk melaksanakan kegiatan pemberdayaan masyarakat yaitu pemberian pengetahuan dan ketrampilan dalam  penggunaan energi alternatif dengan menggunakan Kompor Pellet Biomassa sebagai pengganti tungku tradisional. Kegiatan pemberdayaan ini diharapkan dapat menjadi solusi yang dapat memecahkan permasalahan yang dihadapi oleh UKM yang mempunyai kesulitan mendapatkan bahan bakar seperti gas elpiji atau kayu bakar. Program pengabdian masyarakat ini merupakan program kemitraan yang dilakukan bersama tiga pihak, yaitu industri biopelet (PT. Indokarya Global Jaya) dan UKM Minyak serai wangi sebagai pengguna bahan bakar pelet. Kegiatan pengabdian masyarakat yang dilaksanakan oleh tim pengabadian kepada masyarakat (PKM) Universitas Lampung bertujuan untuk memperkenalkan dan melatih masyarakat tentang teknologi pembakaran yang lebih ramah lingkungan dan memberikan efesiensi yang lebih tinggi dengan menggunakan pellet biomassa (biopellet) sebagai bahan bakar. Kegiatan pengabdian masyarakat terdiri dari beberapa kegiatan, yaitu: (i) sosialisasi, (ii) pelatihan penggunaan kompor dan proses produksi pelet biomassa (i). Target luaran yang diharapkan pada kegiatan ini adalah masyarakat mendapatkan pengetahuan dan keterampilan dalam menggunakan kompor pelet biomassa untuk sebagai sumber energi dalam proses penyulingan yang lebih ramah lingkungan.Kata Kunci : pelet biomassa, UKM minyak atsiri, energi terbarukan, kompor biomassa
EVALUATION OF COMMUNITY PARTICIPATION IN COMMUNITY-BASED WATER SUPPLY AND SANITATION PROGRAMS IN KAMPUNG RANTAU JAYA ILIR, CENTRAL LAMPUNG REGENCY Praja, Tondano Trisna; Rengganis, Dyah Wulan Sumekar; Iryani, Dewi Agustina; Hakim, Lukmanul
International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Vol 5 No 3 (2023)
Publisher : The Islamic Education and Multiculturalism Foundation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47006/ijierm.v5i3.265

Abstract

This research is an effort to understand the sustainability issues of the PAMSIMAS (Community-Based Water Supply and Sanitation) program in Rantau Jaya Ilir Village, Central Lampung Regency. Using quantitative and qualitative approaches, this study tried to identify factors that affect the sustainability of the program. In the qualitative approach, researchers explore literature from various sources to explain the factors causing disruption to the PAMSIMAS program theoretically, while in the quantitative approach, data are collected through questionnaires distributed to program beneficiary communities. The results of this study cover several important aspects. First, the PAMSIMAS program in Rantau Jaya Ilir Village provides significant benefits to the community, especially in improving access and quality of clean water. Second, variables such as age, education, income, and length of stay of the community have a significant relationship with the level of participation in the program. Third, SWOT analysis shows that community participation is in quadrant I, which offers opportunities and strengths to improve programs.
PELATIHAN PEMBUATAN PUPUK ORGANIK GRANUL (POG) BERBAHAN BAKU SLUDGE LUARAN DIGESTER BIOGAS SEBAGAI UPAYA PENGOPTIMALAN PEMANFAATAN DIGESTER BIOGAS PEDESAAN Damayanti, Sri Ismiyati; Nawansih, Otik; Iryani, Dewi Agustina; Taharuddin, Taharuddin; Haviz, Muhammad; Ginting, Simparmin Br
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 8 No. 2 (2024)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v8i2.483

Abstract

Pupuk bioslurry padat (sludge) luaran digester biogas mempunyai kualitas yang bagus, namun masih kurang menarik bagi petani karena berbentuk curah. Oleh karena itu, perlu dilakukan pelatihan terkait granulasi sludge tersebut menjadi pupuk organik granul (POG). Tujuan jangka panjang pengabdian ini adalah kemandirian pupuk di tingkat petani, melalui kemampuan petani mengolah limbah di sekitarnya menjadi pupuk organik yang lebih praktis. Target khususnya adalah masyarakat mengetahui iptek terkait granulasi pupuk dan mempunyai keterampilan dalam menggranulkan pupuk. Metode yang digunakan adalah : koordinasi tim dosen dengan warga terkait kegiatan pelatihan, penyiapan bahan baku, yaitu sludge dan kompos berbahan baku sludge-kulit kopi, sosialisasi dan diskusi terkait iptek granulasi pupuk, pelatihan pembuatan POG, dan evaluasi kegiatan bersama masyarakat. Pelaksanaan pengabdian diawali dengan koordinasi tim dosen dengan warga terkait pelaksanaan kegiatan, dilanjutkan penyiapan bahan baku dan alat dengan dibantu warga dan mahasiswa, pelaksanaan pelatihan dibantu mahasiswa dengan mengundang aparat pekon dan warga, diakhiri dengan evaluasi bersama warga untuk menentukan keberlanjutan program. Masyarakat sangat tertarik menjadikan pupuk organik ini sebagai salah satu usaha desa, yang ke depannya dapat dikelola BUMDes. Kendala selama pengabdian adalah sulitnya mengumpulkan warga di siang hari karena berbagai kesibukan yang berbeda. Warga di desa biasa berkumpul malam hari jika ada yang akan dibicarakan
Adsorpsi Logam Berat Menggunakan Selulosa Xanthat dari Bagas Tebu Iryani, Dewi Agustina; Risthy, Nisa Meutia; Br. Ginting, Simparmin; Darmansyah, Darmansyah
Jurnal Rekayasa Kimia & Lingkungan Vol 14, No 1 (2019): Jurnal Rekayasa Kimia & Lingkungan (June, 2019)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v14i1.12520

Abstract

The most effective way to reduce the pollution of heavy metal waste is the adsorption process using an adsorbent. Sugarcane bagasse is one of materials that has high affinity to absorb heavy metals. The adsorption capacity of sugarcane bagasse can be increased by converting it into cellulose xanthate by reaction of cellulose with carbon disulfide (CS2). Synthesis of cellulose xanthate consists of three stages, i.e isolation, alkalization, and xanthation. In this study, the preparation of cellulose xhantate was conducted by adding carbon disulfide (CS2) about 180% (w/w). The temperature of xhantation reaction was varied at 35C, 40C and 45C. The effect of temperature reaction into degree of substitution (DS), the degree of polymerization (DP) and the metal adsorption capacity of cellulose xanthate for Zn2+ and Pb2+ were determined by quantitative and qualitative analyze. Morphological characteristics of cellulose xanthate was characterized by SEM and the functional groups contained in the cellulose xanthate was characterized by FTIR. The result showed that cellulose xanthate synthesized at temperature of 35C have a highest value of DS, DP, and the adsorption capacity higher than two variations of temperature (40C and 45C). The value of DS, DP, and the adsorption capacity is 0.389, 299.27, 48.353 mg/g for Zn2+ metal and 51.763 mg/g for the metals Pb2+, respectively
Influence of Oil Content on Solution Load Ethanol-Soda Delignification of Oil Palm Mesocarp Fiber Taharuddin, Taharuddin; Iryani, Dewi Agustina; Eka Wahyu, Megananda
Jurnal Rekayasa Kimia & Lingkungan Vol 13, No 2 (2018): Jurnal Rekayasa Kimia & Lingkungan (December, 2018)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v13i2.11145

Abstract

Mesocarp fiber palm oil industrial waste can be processed into pulp, but this fiber still contains oil with varying levels. The difference oil content in fiber affects the amount of cooking solution required to make mesocarp waste into pulp. This study consists of two stages, namely the pretreatment stage of oil extraction to obtain variations in oil content in the mesocarp fiber waste and the delignification stage using the NaOH-ethanol solution with the ratio of solids:solvent is varied to 1: 8, 1:10 and 1:12. Oil content of the fiber was analyzed, it is consist of 9,5% oil. To vary the oil content, the fibers are soaked in ethanol at room temperature and the levels drop to 7%. And soaking at 40C can lower the oil content drop to 2%. The obtained pulp had the largest cellulose content 50.77% from delignified product from fiber with 7.6% oil content and solids:solvent ratio: 1:10. While the lowest lignin that was 7.39% obtained at 2.5% oil content. In the delignification process with ratio 1:12, pulp produced is decreased in cellulose content and from FTIR results it is known that it occurs because of the degraded cellulose during the delignification process.
Co-Authors Agus Haryanto Agus Haryanto Azhar Azhar Damayanti, Sri Ismiyati DARMANSYAH . Devi Permata Sari Eka Wahyu, Megananda Endro Prasetyo Wahono Febryanto, Indra Gumay Heri Rustamaji Herry Wardono Listiani, Nita Lukmanul Hakim M. Haviz Maria Erna Kustyawati Muhammad Hanif Nababan, Otto Lambok Raya Nine Tria Rossa, Nine Tria Otik Nawansih PERMADI, SIGIT Praja, Tondano Trisna Rani, Irma Tya Rengganis, Dyah Wulan Sumekar Rinawati Rinawati Risthy, Nisa Meutia Samsul Rizal Setiawan, Afid Fito Simparmin br Ginting Slamet Sumardi, Slamet Solly Aryza Sri Ismiyati Damayanti Sugeng Triyono Suripto D. Yuwono, Suripto D. Taharuddin Taharuddin Taharuddin Teguh Endaryanto Udin Hasanudin Wahyu Hidayat Widi Astuti