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Efisiensi Penyisihan Chemical Oxygen Demand (COD) Limbah Cair Pabrik Sagu Menggunakan Bioreaktor Hibrid Anaerob Dua Tahap Dengan Variabel Laju Pembebanan Organik Sartunus, Phivi Andriza; Ahmad, Adrianto; Syarfi, Syarfi
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

Sago industry has the potential to pollute the environment. This is because the concentration of COD contained in the sago industry environment quality standard that exceeds 55,000 mg / L. One way to lower the COD concentration is by using a hybrid anaerobic bioreactor two stages. The purpose of this study was to remove COD and determine the highest COD removal efficiency in wastewater treatment sago tunak Volume working conditions hybrid anaerobic bioreactor two stages used in this study was 10 L to 20 L the first stage bioreactor and the second stage in the bioreactor with variations of organic loading rate is 27.50 kgCOD / m3hari the first bioreactor and organic loading rate of 7.86 kgCOD / m3hari; 11 kgCOD / m3hari; 18.33 kgCOD / m3hari on the second stage bioreactor. Each organic loading rate is operated until steady state based on the data obtained COD. The results showed that most of COD removal efficiency was obtained in the operation of the organic loading rate of 27.50 kgCOD / m3hari amounted to 87.88% in the first stage bioreactor and organic loading rate of 7.86 kgCOD / m3hari amounted to 93.94% in the second stage bioreactor. The system of hybrid anaerobic bioreactor two stages mediated phase of this stone can be used as a technology that is used for treating wastewater effectively and efficiently sago.Keywords: anaerobic bioreactor hybrid, COD, sago wastewater, two stages.
Pengaruh laju Pembebanan Organik Terhadap Efisiensi Penyisihan COD Limbah Cair Kelapa Sawit Menggunakan Bioeraktor Hibrid Anaerob Dua Tahap Musfa, Nopi Andri; Ahmad, Adrianto; Bahruddin, Bahruddin
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

The development of palm oil factories in the last few years the rapid growth experienced and gived the impact of positive and negative impact for the community. One of the positive impact is increasing foreign exchange and community welfare state, while the negative impact that is causing waste could reduce the quality of the environment. Characteristic of COD in the liquid waste of plant crude palm is 60.000 mg/l. The value of COD for is a measure of water pollution of organic substances naturally cannot be degradation with microbiologists process and may also result in reduced oxygen dissolved in water. COD handling of liquid waste from factories crude palm oil can be done in anaerobic two stages bioreactor hybrid use anaerobic. This research purposed to determine the effect of organic loading rate for efficiency of COD removal and determine the optimal organic loading rate for efficiency of COD removal on liquid waste oil palm treatment with using anaerobic bioreactor hybrids two stages. Operating conditions on this research that using room temperature, each bioreactor volume by 10 liters and feet flow rate in bioreactor I is 5 liters per day with organic loading rate by 30 kg COD/m3day. The result showed that an COD removal with varying the organic loading rate of 8,568 kgCOD/m3day, 12 kgCOD/m3day and 19,8 kgCOD/m3day, this result obtained the highest efficiency COD removal in the organic loading rate is 8,568 kgCOD/m3day with the equal is 93,06 %. This indicates that bioreactor anaerobic hybrid two stages are relatively better for COD removal from the liquid waste content of crude palm oil.   Keywords: Anaerobic, COD, Liquid Waste of Crude Palm Oil, Two-Stage Anaerobic Bioreactor Hybrid  
Pengaruh Waktu Tinggal Hidrolik Terhadap Alkalinitas, Asam Volatil Dan pH Dalam Pengolahan Sludge Instalasi Pengolahan Air Limbah (IPAL) Pulp Dan Kertas Menggunakan Bioreaktor Hibrid Anaerobik Yasmarli, Yasmarli; Ahmad, Adrianto; HS, Edward
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

Pulp and paper industries growth significantly especially in Indonesia that in their operations generate potential waste to contaminate the environment. Type of waste that generated by pulp and paper industries mostly liquid that could be processed in wastewater treatment installation (WWTI). WWTI still generate amount volume of sludge waste, so it need to be in special handling. One of the alternative that can be reduce volume of sludge waste is anaerobic hybrid bioreactor. This technology use suspended and settle microorganism that integrated in bioreactor system. This research aim to determine the influence of hydraulic retention time (HRT) toward alkalinity, volatile acid and pH in processing of sludge waste from pulp and paper wastewater treatment installation using anaerobic hybrid bioreactor. This research start from seeding time that 100 ml/day sludge waste added to 1 Litre of cows’s feces extract for 10 days. Next stage is acclimatisation with throw and put methode and continued with start up where sludge waste flewed in to bioreactor with 5 days HRT. Last stage is variate HRT for 4 days; 3 days and 2 days. Result of this experiment show that average optimum pH operations is 6,6. Alkalinity 2010 mg/L otherwise volatile acid concentration is 43 mg/L. Bioreactor have high stability with value 0,026 in optimum 4 days HRT.Keyword:Alkalinity, Anaerobic, Bioreactor, Hybrid, Hydraulic Retention Time, Paper, pH, Pulp, Volatile Acid, Wastewater
Pengaruh Waktu Tinggal Hidrolik Terhadap Penyisihan Padatan Pada Pengolahan Sludge Ipal Pulp And Paper Menggunakan Bioeraktor Hibrid Anaerobik Ardian, Siti; Ahmad, Adrianto; Herman, Syamsu
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

The increasing of pulp and paper industry in Indonesia had brought environmental problems which caused by Sludge waste pollution. The characteristic the wastewater treatment of pulp and paper sludge includes TS (Total Solid) 7.6 gr/L; TVS (Total Volatile Solid) 7,4 gr/L; TSS (Total Suspended Solid) 6,0 gr/L; and VSS (Volatile Suspended Solid) 5,9 gr/L. The impact will potential if the solid contents were threw away into the water because the materials of the solid containts can became pollute in environtment. This research with treat the wastewater treatment of pulp and paper’s sludge using a hybrid anaerobic bioreactor with stoned-media to see the effect of hydraulic retention time 5, 4, 3, 2, and 1 days. The results of this research showed that the longer of hydraulic retention time is given, then the greater of solid elimination efficiency. The highest solids elimination efficiency can be found on hydraulic retention time 5 days. The value of TS (44.03%), TVS (83.06%), TSS (68.85%), and VSS (95.25%). The performance by hybrid anaerobic in wastewater treatment sludge has been good, in lowering the solids content parameters.Keywords: anaerob; efficiency; hybrid bioreactor; hydraulic retention time
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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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
Analisa Konduktivitas Hidrolika Pada Sistim Akuifer Juandi M; Adrianto Ahmad; Muhammad Edisar; Syamsulduha '
Komunikasi Fisika Indonesia Vol 9, No 04 (2012)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (325.5 KB) | DOI: 10.31258/jkfi.9.04.387-400

Abstract

Hasil penelitian telah diperoleh bahwa ada empat lapisan penyusun akuifer bebas yangditemukan berdasarkan data geolistrik dengan urutan litologinya adalah tanah penutup, pasir, clay danlempung. Ketebalan lapisan yang diperoleh berdasarkan data geolistrik berturut – turut adalah 10 m,2,5 m, 1 m dan 1 m. Parameter akuifer bebas dalam hal ini konduktivitas hydraulik rata – rata sistimakuifer yang diteliti adalah sebesar 0,795 m/hari. Nilai konduktivitas hydraulic rata-rata inimerupakan factor untuk melihat kondisi keberlanjutan suatu akuifer bawah tanah.
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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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
OPTIMASI PROSES PEMUTIHAN ACACIA KRAFT PULP DENGAN PROSES BIOBLEACHING SEBELUM CHEMICAL BLEACHING UNTUK MENGURANGI PEMAKAIAN BAHAN KIMIA Amrizal '; Adrianto Ahmad; Bahruddin '
Jurnal Sains dan Teknologi Vol 15, No 1 (2016): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.798 KB) | DOI: 10.31258/jst.v15.n1.p1-6

Abstract

Proses pemutihan pulp dengan enzim (Biobleaching) sebelum pemutihan dengan bahan kimia membantu menurunkan konsumsi bahan kimia pemutih (ClO2). Penelitian ini bertujuan untuk mengetahui kondisi optimum proses biobleaching terhadap kenaikkan derajat kecerahan pulp, pengaruhnya terhadap konsumsi ClO2 dan kualitas pulp serta dampaknya terhadap lingkungan. Sampel kraft pulp, terbuat dari campuran kayu acacia mangium, acacia crassicarpa dan eucalyptus. Enzim yang digunakan xylanase dengan aktivitas enzim sebesar 5000 IU/ml. Variabel proses terdiri dari waktu (X1), suhu (X2), pH (X3), dan dosis enzim (X4). Optimasi dilakukan pada berbagai variasi waktu (30, 60, 120, 180) menit, suhu (60, 70) oC, pH (4, 5, 6, 7, 8), dan dosis (0,2, 0,5, 1,0) kg/ton pulp dimana biaya enzim dan bahan kimia sebagai faktor kendala. Hasil penelitian menunjukkan bahwa pH dan dosis enzim merupakan faktor signifikan yang berpengaruh terhadap kenaikan derajat kecerahan pulp. Hubungan antara kenaikkan derajat kecerahan (Y) terhadap pH dan dosis enzim ditunjukkan dengan persamaan Y = 0,792+0,576X3+0,688X4. Kondisi optimum biobleching diperoleh pada pH 8 dan dosis enzim 0,142 kg/Ton pulp dimana kenaikkan derajat kecerahan adalah sebesar 5,5%. Konsumsi ClO2 turun 15,2% dan kadar AOX turun 30% dibandingkan proses tanpa enzim. Kekuatan tarik pulp menunjukkan kenaikkan dari 64,2 N/m2 menjadi 65,2 N/m2.Kata kunci : AOX, biobleaching, derajat kecerahan, enzim xylanase, pulp
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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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.
Kinerja Pengolahan Limbah Padat Serat Buah Sawit Menggunakan Metode Windrow Aerob Ditinjau Dari Rasio C/N tania, Nindy; Ahmad, Adrianto; Andrio, David
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

Solid waste produced by the palm oil processing industry consists of oil palm empty bunches (20-23%), fiber (10-12%), and shells (7-9%). Until now, the solid waste of palm fruit fiber is used as a potential energy source to be burned as boiler fuel. But along with the increase in Crude Palm Oil (CPO), there are still many palm fruit fibers that are not utilized optimally so that the waste only accumulates in the factory area, so the alternative sollution that can be done is by composting. Composting of palm fruit fiber waste with the addition of POME liquid waste which aims to determine the effect of adding Palm Oil Mill Effluent (POME) liquid waste with variations of 0%, 20%, 30% and 40% to the C/N ratio and measurements of C, N, pH, water content, and measurements are carried out. temperature, and the compost product is compared to compost quality standards (SNI 19-7030-2004). The results showed that the effect of POME addition at 20% gave the best results as indicated by the content of C/N 10.81, pH 6.99, water content 42.44% and temperature 32.06 oC, and compost product fulfill the quality standards SNI 19-7030-2004 compost. Thus, the best composting performance of palm fruit fiber waste is the addition of 20% POME with the fastest composting time at 25 days. Utilization of palm fruit fiber is one of the solutions to sustainable environmental pollution control. Key Words: Composting Process, C/N Ratio Palm Fruit Fiber, Palm Oil Mill Effluent (POME), Windrow.