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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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Kinerja Teknik Pengomposan Limbah Tandan Kosong Sawit Menggunakan Metode Windrow Aerob Ditinjau Dari Rasio C/N Adinda Ryvania Abrir; 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 the increase of CPO production resulting the increase of waste product. The main solid waste from the palm oil industry is Empty Fruit Bunch (EFB) that contains high organic matter which has an impact on environmental pollution if not handled well. The composting process is one of the alternative method to reducing environmental pollution caused by waste EFB. However, the composting process takes a long time. Therefore, it is important to do a breakthrough to speed up the processing time. In this research, EFB composting process is done by adding a mixed culture that is useful as a starter and POME as a nutrition source. The purpose of this research was to determine the effect of adding POME toward C/N ratio in the windrow aerob composting. In composting process takes place with variations by adding POME 0%, 20%, 30%, and 40%. Treatment with addition of 30% POME showed the best result with the value of C/N ratio was 11.66 with a pH of 6.98, a temperature of 32.33C and a moisture content of 40.6%. with 25 days period of time. The conclusion of this research is that the addition of POME has an effect on reducing the C/N ratio and accelerating composting time.Keywords: Composting Process, C/N Ratio, Empty Fruit Bunch, Palm Oil MillEffluent (POME), Windrow
Pengaruh Laju Alir Umpan Terhadap Efisiensi Penyisihan Padatan Dalam Limbah Cair Pulp Dan Kertas Dengan Reaktor Kontsk Stabilisasi Elfina Noviarni Chandra; 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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High consumption of paper both globally and nationally have pushed pulp and paper industry to increase its production capacity from year to year. This resulted the wastewater produced in large quantities. Characteristics of solids in pulp and paper wastewater includes TS (Total Solid), TVS (Total Volatile Solid), TSS (Total Suspended Solid) and VSS (Volatile Suspended Solid) respectively are 0,7; 0,28; 0,6; 0,26 g/L. Solids in the wastewater is a material adverse impact on water quality, such as reducing sunlight penetration into bodies of water, increasing the turbidity of water, can lead to impaired growth for organism and solubility of oxygen in water. Solids handling of pulp and paper wastewater can be aerobically by using stabilization contact reactor. The purpose of this research is to removing the content of solids in pulp and paper wastewater and determine the effect of feed flow rate of solids removal efficiency and biomass concentration on stabilization contact reactor. The conditions of this research is detention time in stabilization tank is 4 hours, sludge age 15 days and % resirculation is 75% of influent flow. The results showed that the solids removal includes TS, TVS, TSS and VSS by varying feed flow rate for 2,2 L/hour, 2,9 L/hour, 4,4 L/hour and 8,8 L/hour, the highest solids removal efficiency obtained at 2,2 L/hour respectively are 72,38%, 69,05%, 79,26% and 74,36%. This suggests that the stabilization contact reactor is stabilized in removing solids content of pulp and paper wastewater.Keyword: Aerobic, Content of Solids, Pulp and Paper Wastewater, Reactor Contacts Stabilization.
Pengujian Kualitas NPK Biofertilizer Dalam Pengolahan Limbah Padat Serat Buah Sawit Bagus Anugrah; 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

Along with the increase in CPO production, there are still many palm fruit fiber wastes that have not been utilized properly. One alternative to palm fruit fiber waste that is environmentally friendly is by applying the principle of 3R (Reduce, Reuse, Recycle) that is by composting. The composting process can be a strategy for recycling large amounts of sustainable organic waste. The purpose of this study was to determine the effect of POME addition on NPK quality with variations in POME of 0%, 20%, 30%, 40% and measurements were made on N, P, K, pH, water content, temperature, and compost produced compared to the standard the quality of compost SNI 19-7030-2004. In this study composting was carried out by aerobic windrow method. The results showed that the effect of increasing POME gave the best results as indicated by the content with pH 6.99, water content 42.44%, and temperature 32.06 0C. The highest quality of N elements and in accordance with SNI 19-7030-2004 is the addition of POME 20% which is equal to 2.61%. The highest quality of P and K elements is by adding POME 40% which is equal to, 1.1%, and 3.09% with composting time for 25 days. Thus the utilization of palm fruit fiber as compost is one of the solutions to sustainable environmental pollution control.Keywords : Composting, NPK, Palm Fruit Fiber, Palm Oil Mill Effluent (POME), Windrow.
Pengaruh Waktu Tinggal Hidrolik Terhadap Efisiensi Penyisihan Padatan Dalam Limbah Cair Industri Sagu Dengan Menggunakan Bioreaktor Hibrid Anaerob Dua Tahap Riki Rahmadhan; Adrianto Ahmad; Ahmad Fadli
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Sagoo industries was produced wastewater with high concentration of solids that potentially causes environment problem’s. One way to got lower concentration of solids with making use two-stage hybrid anaerobic bioreactor’s with stone media. The purpose of this study was to remove and determine the highest solids removal efficiency in wastewater treatment sagoo. Twosatge hybrid anaerobic bioreactor in continuous process with working volumes 10 L was used instage I and 20 L was used in stage II. The output from stage I was used as the input for stage II. The two-stage reactor was operated at a hydraulic retention time that varied from 2 days in stage I and 3,5 and 7 days in stage II. The results showed that highest of solids removal efficiency was obtained in the operation of hydraulic retention time 7 days. The value of TS(81,03%), TVS (72,92%), TSS (71,13%) and VSS (68,63%). Two-stage hybrid anaerobic bioreactors system exactly effective and efficient within to got lower concentration of solids in wastewater of sagoo industry’s.Keywords: anaerobic, continuous, hybrid bioreactor, hydraulic retention time, solid concentrations, two-stage, wastewater of sagoo industry.
Pengaruh Konsentrasi Saccharomyces Cerevisiae Terhadap Biokonversi Pelepah Sawit Menjadi Bioetanol Meliana Dewi; Adrianto Ahmad; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abstract

Oil palm is one of the plantation commodities that have important role in economic activity in Indonesia. With a total area of 11.30 million hectares and oil palm plantations produce more than 75 million tons of palm oil waste per year and palm oil has a calorific value of 3350 kcal/kg, oil palm has the potential to contribute alternative energy from the resulting biomass. In addition to being utilized as an environmentally friendly renewable energy source, conversion of palm oil to bioethanol also helps to reduce untapped waste. Producing bioethanol from oil palm frond can be done through fermentation process. Factors that affect the fermentation process one of them is the number of cells of microorganisms. The microorganism used in this study is Saccharomyces cerevisiae. The purpose of this study was to determine the effect of Saccharomyces cerevisiae concentration on fermentation process on bioethanol produced and determine the best time of fermentation to bioethanol conversion from oil palm frond. The conversion of oil palm frond into bioethanol includes of delignification of oil palm frond by using KOH solution obtained from empty fruit bunches ash extract, purification of oil palm frond using 3% H2O2 solution, hydrolysis of cellulose using 1% H2SO4 with 100ºC for 60 minutes, and fermentation using Saccharomyces cerevisiae with different concentration of Saccharomyces cerevisiae 4 g/L, 6 g/L, 8 g/L, and 10 g/L. The maximum sugar concentration produced by the hydrolysis process was 117.55 g/L. The best bioethanol content was obtained at 3.29% (v/v) or 25.97 g/L at Saccharomyces cerevisiae 8 g/L concentration and 96 hours fermentation time.Keywords: Bioethanol, Fermentation, Oil Palm Frond, Saccharomyces cerevisiae
Pengaruh Perbandingan Eceng Gondok Dan Air Terhadap Kestabilan Sistem Pada Produksi Biogas Secara Fermentasi Anaerob Tahap Metanogenesis Resti Ossi P; 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

Hyacinth (Eichhorhia crassipes) is a weed on waters which is a big problem for damage the environment but it contains materials that can be fermented and produce biogas, there are hemicellulose and cellulose. This research head for produce biogas from hyacinth by anaerob fermentation process with microorganizm on batch system and determine optimum ratio of hyacinth and water along with the effect to the stability of system. There were stages on this research, including seeding, acclimatization, and anaerob batch fermentation. Seeding was doing in ten days with ratio hyacinth and water was 75%:25%, then continued to acclimatization in 48 days. The anaerob batch fermentation was doing with variation of ratio hyacinth and water 1:2, 1:3, 1:4, and 1:5 in anaerob batch bioreactor during 32 days. Analysis of pH, biogas volume, volatile acid, and alkalinity was analized every two days during anaerob batch fermentation. The result of this research showed that in 48 days acclimatization process was produced biogas about 75.840 mL. In the fermentation process was resulted biogas about 23.300 mL with methane contents was 11.924,56 ppm or 1,19%; pH optimum 6,8-7,2; volatile acid concentration 145,8 mg/L; alkalinity concentration 1684,13 mg/L, and ratio of AV/alkalinity 0,087 on the rasio of hyacinth and water at 1:2. In conclusion, the stability of system will decrease along with increasing amount of water in the substrat of anaerob batch fermentation.Keywords: Anaerob Batch Fermentation, Biogas, Hyacinth, Methane
Pengaruh Laju Pengadukan Terhadap Biokonversi Reject Nanas Menjadi Bioetanol Intan Oktaviani; Adrianto Ahmad; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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Bioethanol production can be done by a process of fermentation material containing glucose, cellulose fiber and starch. Pineapple is one of the ingredients containing glucose. This study produces bioethanol from reject pineapple juice. The purpose of this study to determine the effect of stirring rate on bioethanol yield and to get the best conditions in the manufacture of bioethanol made from pineapple juice reject. There are several stages in the research, the preparation of raw materials, fermentation, and purification products. The variables used are the stirring speed in the process of fermentation: 100, 150, 200, 250, and 300 rpm with fermentation time 12, 24, 36, 48, 72, 84, 96, 108 and 120 hours. Anaerobic fermentation process takes place with the help of the yeast Saccharomyces cerevisiae with the addition of some nutrients. To measure the ethanol formed, the purification process is carried out using a rotary evaporator. The results showed that the highest ethanol content of 10% v/v with yield of 95.32% obtained at the stirring rate of 200 rpm with a fermentation time of 60 hours.Keywords: Bioethanol, Reject pineapple, Stirring, Saccharomyces cerevisiae.
Pengaruh Waktu Inkubasi Terhadap Biokonversi Reject Nanas Menjadi Bioetanol M Ridwan Afitra; Adrianto Ahmad; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Abstract

Bioethanol can be produced through a fermentation process materials containing starch, sugar and cellulose fibers by fermentation by microorganisms. Bioethanol can be used as solvents, materials manufacture of perfumes, flavorings, food coloring, and drugs, and even can be used as an alternative fuel. Bioethanol production is done by a process bacth or also called bulk process. The purpose of this study was to determine the effect of incubation time and also get the optimum concentration of ethanol in the manufacture of bioethanol from pineapple reject. Stages of the manufacturing process starts from the substrate pineapple reject juice. Effect of incubation time will be done in this study with variations of 24, 48, 72, 96 and 120 hours. The number of cells during the incubation period will be analyzed by measuring the dry weight of the cell. Fermentation will take place over 4 days (96 hours) with a variation of 12, 24, 36, 48, 60, 72, 84 and 96 hours with the help of Saccharomyces cerevisiae. The results showed that the best time of incubation occurred at 24 and 48 hours with each cell weight of 9.8 g/L and 10.1 g/L at 96 hours of fermentation time and 48 hours which produces bioethanol concentration of 7%.Keywords : bioethanol, fermentation, incubation, pineapple reject, saccharomyces cerevisiae
Pengaruh Laju Alir Terhadap Substrat Pada Fermentasi Reject Nanas Menjadi Bioetanol Secara Kontinu Okky Rizky Sinaga; 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

Today, the world's need for energy is increasing while the supply of energy from fossil fuels that have been relied upon a limited number. Therefore, it is necessary that alternative energy sources are able to overcome the energy crisis. One of the alternative energy sources are being developed is bioethanol. Bioethanol can be produced by fermentation of glucose using the yeast Saccharomyces cerevisiae. One of source of glucose is pineapple. This research aims to make bioethanol from pineapple fruit skin using continuous fermentation method with a flow rate variations. Fixed variable used is the 5-liter, pH 4.5, inoculum levels of 0.3%, 0.5% urea, phosphorus levels and temperature fermentation 0.08% used is room temperature. Variable changes used are changes in feed flow rate is 5 L / day; 2.5 L / day; 1.67 L / day; 1:25 L / day and 1L / day. Experimental procedure includes pretreatment, inoculation, fermentation and purification using a vacuum evaporator. Analysis performed is analyzing glucose and ethanol concentration analysis. The results were obtained concentration of ethanol in the steady state condition for the flow rate of 5L / day as much as 5% v / v; 2.5 L / day by 7% v / v; 1.67 L / day as much as 6.5% v / v; 1.25 L / day as much as 6% v / v; and 1 L / day as much as 4% v / v. The highest ethanol concentration was obtained at a flow rate of 2.5L / day as much as 7%. This study suggests that the concentration of ethanol fermentation results increases with the flow rate of the substrate to achieve the optimal flow rate then decreased after reaching the optimum flow rate.Keywords: bioethanol, continuous, pineapple skin, saccharomyces cerevisiae
Uji Kinerja Bioeraktor Hibrid Anaerob Dua Tahap Pada Pengolahan Limbah Cair Industri Sagu Dengan Variabel Beban Kejut (Shock Loading) Apriadi Rio; Adrianto Ahmad; Amun Amri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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The wider the area of sago palm in Indonesia, the more rapid development of the industry in increasing the production of sago. Industrial production sago produce wastewater with high organic matter content, if discharged directly into the water body will continually degrade water quality and environmental pollution. Thus, needs to be processed with a technology prior to disposal, wastewater treatment technology is a two-stage anaerobic bioreactor hybrid. The purpose of this study is to test the stability and performance of the two-stage anaerobic bioreactor hybrid stone in anticipation of media change suddenly arriving feed flow rate due to the increasing production of sago industry. Hybrid anaerobic bioreactor working volume of two stages used in this study was 10 L in the first bioreactor and 20 L in the second bioreactor. Operation was carried out by giving a shock loads increasing the feed flow rate suddenly by 50%, 100% and 150% for 6 hours in the first bioreactor, and then returned to the first bioreactor flow rate was 5 L/day. The results showed that the two-stage anaerobic hybrid bioreactor stone mediated able to anticipate fluctuations in the production of industrial wastewater discharge sago with the feed flow rate suddenly by 50%, 100% and 150% indicates that the system recovery time of two stage anaerobic bioreactor hybrid was faster with a span of 5 to 6 days. The highest COD removal occurred at shock loads of 100% of 3.750 mg/L.Keywords: Anaerobic , COD Hybrid Anaerobic Bioreactor, Sago Wastewater, Shock Loading, Two Stage.
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