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All Journal Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Equilibrium Journal of Chemical Engineering Jurnal Teknik Kimia Indonesia Journal of Bioprocess Chemical and Environmental Engineering Science Dinamika Lingkungan Indonesia Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat)
Adrianto Ahmad
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics

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Pengaruh Perbandingan Eceng Gondok Dan Air Terhadap Penyisihan COD (Chemical Oxygen Demand) Dan Padatan Pada Produksi Biogas tahap Metanogenesis Nurul Annisa; Sri Rezeki Muria; Adrianto Ahmad
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biomass of water hyacinth (Eicchornia crassipes) is a weed plant that is growing very fast. Components of water hyacinth has a high cellulose that potential to be used as raw material for production of biogas by anaerobic fermentation. The purpose of this study to determine the effect of substrate ratio for Chemical Oxygen Demand (COD) removal and solids removal and the maximum process conditions. This process using a 15 liters of batch bioreactor at pH 7 with variation of water hyacinth and water 1: 2, 1: 3, 1: 4 and 1: 5. Observations biogas production is done by measuring the volume of biogas produced each day, while organic matter and solids content by seeking removal efficiency of COD and solids removal. The results showed that COD removal efficiency of the largest in the ratio of 1:2 is 80,85% and the total solids removal efficiency at a ratio of 1:2 was 63.04%, 1:3 was 54.49%, 1:4 was 36.32%, and 1:5 was 31.25%. The largest biogas production substrate ratio of 1: 2 at 23,300 mL and the results of methane analysis using gas chromatography amounted to 11924.56 ppm (1,19%).Keywords: anaerobic, batch, biogas, gas chromatography, water hyacinth
Biokonversi Serat Buah Sawit Menjadi Bioetanol Dengan Variabel Konsentrasi Saccharomyces Cerevisiae Masroah Tuljannah; Adrianto Ahmad; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Indonesia was the largest producer and exporter of palm oil in the world. As the plantation area expands, the increasing number of palm oil process industries results in large amounts of waste product. The biggest waste was of palm fruit fiber (fiber cake). It was known that 1 ton of fresh fruit bunches (FFB) of palm oil will produced 13% or 130 kg of fiber cake. By look at the potential that can be generated from the fruit fiber of palm oil (fiber cake) coming from the CPO process industry has a value that to use as the main ingredients in the making of alternative bioethanol fuel. The purposes of this study were to synthesize bioethanol from the raw material of palm fruit fibers, to determine the influence of the amount of Saccharomyces cerevisiae weight on bioethanol, and to determine the optimum time of bioethanol production from the raw material of palm fruit fibers by separation hydrolysis and fermentation (SHF) method. The stages of this study were delignification used KOH solution obtained from the extract of Palm Empty Cluster Ash, then the purification process using 3% H2O2 solution. Then the hydrolysis process using 2 M H2SO4 for 3 hours at 100°C. The last process was fermentation. In the fermentation process, variations of Saccharomyces cerevisiae concentration were 4, 6, 8 and 10 gr/L and fermentation time were 24, 48, 72, 96, and 120 hours. In acid hydrolysis, a maximum sugar concentration of 131 gr/L was produced. The research results show that the best Saccharomyces cerevisiae concentration was 4 gr/L at the best fermentation time of 96 hours with the obtained bioethanol content of 7% or 55.25 g/L.Keywords: bioethanol, fermentation, hydrolysis, palm fruit fiber, Saccharomyces cerevisiae
Pengaruh Laju Alir Umpan Terhadap pH, Alkalinitas Dan Asam Volatil Dalam Bioreaktor Hibrid Anaerob Dua Tahap Pada Pengolahan Limbah Cair Industri Sagu Resarizki Utami; Adrianto Ahmad; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

In producing sago becomes sago flour be required 20,000 liters of water per ton of sago, where 94% of the water be liquid waste. If the liquid waste which has a high content of organic material is directly dumped into waters, it is very potentially pollute theenvironment. One of the liquid waste processing sago is using by hybrid anaerobic bioreactor two stages. Bioreactor performance is influenced by pH, alkalinity and volatile acid. The purpose of this research is to know the influence of flow rate feedback of pH, alkalinity and volatile acid in hybrid anaerobic bioreactor two stages and determine the stability of the bioreactor. This research was conducted by using hybrid anaerobic bioreactor two stages with stone as a medium for growth of microorganisms. The volume of work being used is equal to 10 liters in the first stage biorector and 20 liters in thesecond stage bioreactor with variated flow rate feedback in the second stage bioreactor, 2.86 liters/day, 4 liters/day and 6.67 liters/day. The results showed that the optimum of flow rate feedback obtained at 2.86 liters/day with an average pH of 6.8, alkalinity of 2341 mg/L, volatile acid of 38,67 mg/L and the stability of bioreactor of 0.0118.Keywords : Alkalinity; Anaerobic; Hybrid bioreactor; pH; Sago watewater; Two stages; Volatile acid
Pengaruh Kecepatan Pengadukan Pada Pembuatan Bioetanol Dari Pelepah Sawit Menggunakan Saccharomyces Cerevisiae Meilano Ashari Akbar; Adrianto Ahmad; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Indonesia is one of the largest oil producer in the world. Palm frond is a type of plant lignocellulose comprising lignin, cellulose and hemicellulose. Where the presence of cellulose, the palm fronds can be used as raw material in the manufacture of bioethanol by converting cellulose into glucose. Bioethanol production from palm fronds can be done through a process of fermentation. The microorganisms used in this study was Saccharomyces cerevisiae. The purpose of this study was to determine the effect of stirring speed in the fermentation process to produce bioethanol produced to determine the best time and fermentation to ethanol conversion of palm fronds. Steps being taken in this study include delignification, purification powder palm fronds, hydrolysis and fermentation. In the fermentation process variation stirring speed of 100 rpm, 150 rpm, 200 rpm, and 250 rpm. The results showed that the hydrolysis of cellulose by acid produced initial sugar concentration to a maximum of 82,41 g/L. The best stirring speed in this research is 250 rpm and the best fermentation time is 96 hours with ethanol levels obtained at 3% or 23,67 g/L.Keywords : bioethanol, fermentation, hydrolysis, saccharomyces cerevisiae, stirring
Efisiensi Penyisihan COD Dan Pembentukan Biogas Dalam Pengolahan Sludge IPAL Industri Pulp And Paper Dengan Menggunakan Bioreaktor Hibrid Anaerobik Dwi Mina Intan Permadi; Adrianto Ahmad; Shinta Elystia
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Sludge waste paper processing industry has a COD concentration reached 45,000 mg / L. When discharged directly into the water, it can pollute the environment because of the quality standards set by the government through KEPMEN LH No. 51 1995 which is the COD of 350 mg / L. This study aimed to reduce levels of COD in wastewater using an anaerobic bioreactor hybrid combining two patterns of growth of the microorganisms suspended on the insulated and attached growth media using the stones as cell immobilization. This study took place in four stages. The first stage is the seeding done by adding 200 mL of waste and provides nitrogen every day and lasts for 10 days. The second stage is using the method of acclimatization waste and dispose of the liquid contents of 200 mL and restocked with a substrate of 200 mL per day. The third stage is a start-up using the substrate that enter into the inlet tank, then the feed flows rate of 4L / day flow through the inlet pipe so that the entry into the reactor, the suspension in the reactor will be decomposed by microorganisms resulting in the formation of biogas. The fourth sage anaerobic bioreactor hybrid continuous with variable feed flow rate is 20 L / day, 10 L / day, 6.67 L / day, 5 L / day, 4 L / day, with a working volume of the bioreactor 20 L / day. The results showed that the removal efficiency of each flow rate was 94.44%, 94.44%, 94.44%, 94.44%, and 94.44% respectively and the average biogas production reached 1153,95 mL. Thus the hybrid bioreactor be one of the alternatives that can be used in treating wastewater which has quite high organic content.Keywords: Anaerobic bioreactor hybrid, rock, sewage, COD, biogas formation.
Proses Purifikasi untuk Penyisihan Kandungan Hidrogen Sulfida dan Karbon Dioksida di Dalam Biogas Menggunakan Mono Etanol Amin (MEA) Adrianto Ahmad; David Andrio; Trio Yudha Putra; Ulva Seprizal
Equilibrium Journal of Chemical Engineering Vol 5, No 2 (2021): : Volume 5 No 2 December 2021
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v5i2.58477

Abstract

ABSTRAK. Biogas merupakan salah satu sumber energi terbarukan, yang mampu dihasilkan dari limbah organik seperti limbah cair sawit (POME), melalui proses fermentasi anaerobik. Untuk menghindari terjadinya korosi pada peralatan, biogas hasil fermentasi diperlukan proses purifikasi untuk menyisihkan kandungan hidrogen sulfida (H2S). Tujuan dari penelitian ini yaitu untuk menentukan pengaruh penggunaan monoethanolamine (MEA) pada purifikasi biogas, menentukan kondisi terbaik dari variabel penelitian (konsentrasi MEA 30%, 25%, 20%, 15% 10%, 5% v/v) yang memiliki kandungan H2S terendah, dan menentukan efisiensi proses purifikasi biogas. Purifikasi biogas dilakukan menggunakan bubble column absorber secara semi-batch, dimana biogas mentah dialirkan ke kolom yang berisi absorber MEA sebanyak 0,678 L. Biogas keluaran kolom dianalisa kandungannya menggunakan alat pengukur kandungan biogas (Biogas 5000 ©). Hasil penelitian menunjukkan bahwa penggunaan MEA sebagai absorben mampu menurunkan kandungan gas H2S dan menaikkan kandungan gas CH4 di dalam biogas hasil purifikasi, serta semakin tinggi variasi konsentrasi MEA yang digunakan, maka semakin rendah kandungan H2S biogas dan semakin lama waktu absorbsi yang diperlukan untuk absorben mencapai titik jenuh. Kondisi terbaik absorbsi tercapai pada penggunaan variasi konsentrasi MEA 30% v/v, dengan kandungan H2S pada biogas hasil purifikasi 0 ppm, dan efisiensi penyisihan H2S sebesar 100%. ABSTRACT. Biogas is a renewable energy source, which can be produced from organic waste such as palm oil mill effluent (POME), through an anaerobic fermentation process.  Biogas requires a purification process to remove the content of hydrogen sulfide (H2S) and carbon dioxide (CO2). The purpose of this study is to review the effect of the biogas purification process of chemical absorption of H2S and CO2 gases in raw biogas by monoethanolamine (MEA) absorbent. Biogas purification was carried out using a bubble column absorber in a semi-batch, where raw biogas was flowed into a column containing a MEA absorber of 0.678 L. The biogas content from the column was analyzed using a biogas content measuring device (Biogas 5000 ©). The result showed that removing the use of MEA as an absorbent can reduce the content of hydrogen sulfide (H2S) and carbon dioxide (CO2) and improve the content of methane in biogas. Increasingly high variation concentration MEA, then the lower content of hydrogen sulfide (H2S) and more time long to reach the point saturated absorbability.
Pengaruh Penambahan POME Terhadap Konsentrasi N, P, K Pada Proses Pengomposan Tandan Kosong Sawit Mora Rahmayuanda; Adrianto Ahmad; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The palm oil industry is currently experiencing very rapid development which is marked by an increase in CPO production. The main solid waste produced by the palm oil processing industry is Empty Fruit Bunch (EFB) which is 22-23%. The composting process is one of the processing methods that can be done on EFB waste, however, the composting process requires a long time. Therefore, it is important to do a breakthrough to speed up the processing time. In this study, composting can be accelerated by adding mixed cultures and POME as a source of nutrition. The purpose of this study was to determine the effect of variations in POME addition on windrow aerob composting of EFB on the quality of N, P, K. In composting process takes place with variations by adding POME 0%, 20%, 30%, and 40%. The results of the study showed that the effect of POME 40% addition gave the best results as indicated by the highest N, P, K content of 2.41%, 2.29%, 2.56%, temperature 33.61OC, pH 6.84, and water content 49.4%, and compost produced meets SNI 19-7030-2004 compost quality standards. Thus, the performance of composting with the best result is with the addition of 40% POME with 25 days composting time. Utilization of oil palm empty fruit bunches is one of the solutions to sustainable environmental pollution control.Key Word : Composting Process, Empty Fruit Bunch, NPK, Palm Oil Mill Effluent (POME), Windrow.
Kajian Efisiensi Penyisihan BOD pada Start-Up Bioreaktor Hibrid Anaerob Menggunakan Substrat Limbah Cair Pabrik Sagu Handayani, K.H Sri; Ahmad, Adrianto; Bahruddin
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 1 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.1.51-61

Abstract

The Meranti Islands Regency is renowned as one of the largest sago flour producers in Indonesia, with a total production of 202,186 tons of sago per year and wastewater production reaching 40,000 liters. The microorganism Enterobacter aerogenes is a facultative anaerobic hydrogen-producing bacterium through dark fermentation of sago liquid waste. This study aims to determine study on bod removal efficiency during the start-up phase of a hybrid anaerobic bioreactor, identify the biological oxygen demand (BOD) loading rate during start-up, and evaluate the BOD removal efficiency in the start-up phase. The sago wastewater was characterized for its BOD, pH, and VSS content before treatment. The first phase involved preparing cow dung extract, which serves as a medium. The second phase focused on biomass seeding and acclimatization using a sago medium. The acclimatization process utilized a daily discharge-and-fill method of 200 mL (total acclimatization volume of 12.5 L). Samples from the acclimatization process were analyzed for potential of hydrogen (pH) and volatile suspended solid (VSS) values. If the acclimatized VSS values were below 10%, the third phase (start-up phase) was initiated. The start-up phase was operated with a hydraulic retention time (HRT) of 48 hours. Output samples were analyzed for pH, VSS, and %BOD values until a consistent %BOD value below 10% was achieved. The final stage involved data collection for analyzing the kinetics of microorganism cell growth. The specific growth kinetics value (µ) of the mixed-culture microorganism cells during the start-up phase calculated with a result of μ=0.00617. The highest BOD loading rate during the start-up phase occurred at the 1st hydraulic retention time (HRT), reaching 6.54 kg/m³/day, accompanied by the lowest BOD removal efficiency of 18.76%. In contrast, the lowest BOD loading rate was recorded at the 11th HRT, at 0.704 kg/m³/day, achieving the highest BOD removal efficiency of 91.26%.
PENGEMBANGAN PEMBANGKIT BIOGAS UNTUK MEWUJUDKAN DESA MANDIRI ENEGI DI DESA BATUBELAH KABUPATEN KAMPAR PROPINSI RIAU Adrianto Ahmad; Bahruddin; Zuchra Helwani; Lita Darmayanti; Khairat; Muria, Sri Rezeki; Sri Helianty
BHAKTI NAGORI (Jurnal Pengabdian kepada Masyarakat) Vol. 5 No. 2 (2025): BHAKTI NAGORI (Jurnal Pengabdian kepada Masyarakat) Desember 2025
Publisher : LPPM UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/bhakti_nagori.v5i2.4955

Abstract

Program bantuan sapi untuk masyarakat di Kabupaten Kampar Propinsi Riau telah didistribusikan sedemikian rupa, dengan sendirinya akan menghasilkan limbah padat berupa kotoran sapi. Kotoran sapi diolah menggunakan proses anaerob akan menghasilkan biogas. Potensi biogas yang diperoleh dapat digunakan sebagai sumber energi. Berdasarkan pengabdian terdahulu tahun 2023 telah teridentifikasi sebanyak 107 ekor sapi dari 30 peternak sapi dan telah dibangun unit pembangkit biogas sebanyak 6 unit, setiap unit mempunyai kapasitas 1500 L yang diumpan dengan kotoran sapi sebesar 250 L/hari sehingga menghasilkan biogas sebesar 1.080 L/hari. Biogas tersebut dapat dikonversi menjadi energi bakar yang dapat digunakan sebagai bahan bakar kompor rumah tangga pengganti gas LPG. Pengabdian ini dilakukan dalam dua tahap yakni melalui WORKSHOP dan PRAKTEK LAPANGAN. Pada WORKSHOP dan PRAKTEK LAPANGAN diikuti oleh 30 peserta yang berasal dari kelompok peternak sapi. Hasil pengabdian menunjukkan bahwa api yang dihasilkan berarna biru dan dapat digunakan untuk memasak.
Co-Authors Adinda Ryvania Abrir Ahmad Fadli Aman Aman Amir Awaluddin Amrizal ' Amun Amri Apriadi Rio Ardian, Siti Bagus Anugrah Bahruddin Bahruddin ' Bahruddin Bahruddin Chairul Chairul David Andrio Devita Ulfa Sari, Devita Ulfa Dwi Mina Intan Permadi Edisar Edisar Edward Hs Edward HS Elda Nazriati Elfina Noviarni Chandra Elvi Yenie, Elvi Firmanto, Firmanto Gita Aziza Salis, Gita Aziza Handayani, K.H Sri Hartati Hartati Intan Oktaviani Jeckson, Edie Juandi Juandi Khairat Khairat, Nur Khairil Anuar, Khairil Lita Darmayanti Luturkey, Yance Andre M Ridwan Afitra Masroah Tuljannah Mayerni Mayerni Meilano Ashari Akbar Meliana Dewi Monita Olivia Mora Rahmayuanda Muhammad Edisar Nofrizal Nofrizal Nopi Andri Musfa, Nopi Andri Nurul Annisa Okky Rizky Sinaga Phivi Andriza Sartunus, Phivi Andriza Purwoko, Agus Rendy Hidayat Resarizki Utami Resti Ossi P Riki Rahmadhan Shinta Elystia Sri Helianty Sri Rezeki Muria Sukendi Sukendi Syamsu Herman Syamsulduha ' Syamsulduha Syamsulduha Syarfi, Syarfi tania, Nindy Tasbieh, Hayatrie Trio Yudha Putra Ulva Seprizal Yasmarli, Yasmarli Yuzelma Yuzelma Zainal Abidin Zuchra Helwani