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All Journal Jurnal Bahan Alam Terbarukan Jurnal Riset Industri Hasil Hutan Konversi Info-Teknik Jurnal Teknologi Agro-Industri Indonesian Journal of Chemistry Communications in Science and Technology Journal of Applied Sciences, Management and Engineering Technology (JASMET) Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul)

Abubakar Tuhuloula

Program Studi Teknik Kimia Fakultas Teknik Universitas Lambung Mangkurat

Author-ID : 406460

Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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PERBANDINGAN LIMBAH DAN LUMPUR AKTIF TERHADAP PENGARUH SISTEM AERASI PADA PENGOLAHAN LIMBAH CPO Febrina Rantifa Sari; Raudhah Annissa; Abubakar Tuhuloula
Konversi Vol 2, No 1 (2013): April 2013
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v2i1.128

Limbah cair kelapa sawit berasal dari unit proses pengukusan, proses klarifikasi dan buangan dari hidrosiklon. Pada umumnya, limbah cair kelapa sawit mengandung bahan organik yang tinggi seperti 34,20% ekstrak tanpa N (komposisi kimia) dan 13,19 % Glutamit Asam (komposisi asam amino)sehingga potensial mencemari air tanah dan badan air. Penelitian ini bertujuan untuk mengetahui pengaruh sistem aerasi pada limbah CPO dan lumpur aktif dalam bak aerasi sehingga didapat penurunan konsentrasi BOD5, COD dan pH effluen serta mengetahui variasi perbandingan volume antara limbah CPO dengan lumpur aktif (activated sludge) terhadap optimalisasi penurunan nilai konsentrasiBOD5, COD dan pH effluen.Pada penelitian ini, limbah cair CPO dan lumpur aktif dimasukkan kedalam bioreaktor dengan variasi perbandingan volume. Kemudian masing-masing bioreaktor diaerasi dengan menggunakan aerator dan dilakukan pengamatan sistem aerasi terhadap penurunan nilai BOD5, COD, dan pH nya dengan menggunakan lumpur aktif. Hasil analisa didapatkan nilai optimum terjadi pada bioreaktor C (8:2)v/v dimana perbandingan antara limbah CPO dengan penambahan lumpur aktif lebih sedikit, nilai BOD5 22,4 mg/L dari nilai awal 25,6 mg/L, nilai COD 42,5953 mg/L dari nilai sampel awal 65,77 mg/L begitu pula nilai MLSS dan MLVSS meningkat pada Bioreaktor C dari 52690 mg/L menjadi 71060 mg/L. Keywords: Waktu retensi, tangki Aerasi, Lumpur Aktif, Limbah cair, BOD5, COD. Liquid waste crude palm oil derived from strilizer unit, clarification unit and exiles from hydrocyclone. Liquid waste from crude palm oil industry such as34.20% extractwithoutN(chemical composition) and13.19% Glutamitacid(amino acidcomposition)might potentially contaminate ground water and water bodies. This studyaimed todetermine the effect of aeration systemonCPOandwasteactivated sludge in theaerationbasinin order to get the concentrationdecreasedBOD5, CODandpH of theeffluentanddetermine variations inthe ratio betweentheCPOwasteactivated sludgetooptimize theconcentrationimpairmentBOD5, CODandeffluentpH.In this study, liquid wasteandsludgeCPOinserted into thebioreactorwith avolumeratiovariation.Then eachaeratedbioreactorsusingaeratorsandaerationsystemswas observedtodecrease invalue ofBOD5, COD, andpHby usingactivated sludge. Analysisresultsobtainedoptimumvalueoccurs inbioreactorC(8:2) v/vCPOwhere thecomparisonbetweenthe wasteactivated sludgewiththe addition ofa little more,BOD5value of22.4mg/Lfrom baseline25.6mg/L, COD42,5953mg/Lofinitialsamplevalue65.77mg/Las well asthe value ofMLSSandMLVSSincreased inBioreactorCof52 690mg/Lto71060mg/L. Keywords: retention time, aeration tank, Activated sludge,liquid waste,BOD5, COD

PEMANFAATAN TULANG IKAN PATIN SEBAGAI BAHAN BAKU PRODUKSI ASAM PHOSPAT Ridho Roihanul Falah; Ardhiannas Fadhila; Abubakar Tuhuloula
Konversi Vol 2, No 2 (2013): Oktober 2013
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v2i2.80

Tulang ikan patin memiliki proporsi 10% dari total susunan tubuh ikan yang merupakan salah satu limbah pengolahan ikan yang memiliki kadar kalsium pospat sebanyak 14% dari total susunan tulang. Pembuatan asam phospat dari tulang ikan patin ini bertujuan untuk mengekstrak asam phospat dari tulang ikan patin dan menghitung kadar asam phospat yang dapat dihasilkan dengan variasi suhu dan konsentrasi pelarut. Proses yang digunakan dalam penelitian ini adalah ektraksi dengan pelarut H2SO4. Serbuk tulang ikan patin dengan ukuran butir 250 micron dan berat 10 g dimasukan kedalam labu leher tiga yang ditambahkan H2SO4 dengan volume 100 mL. Kemudian dipanaskan dan berlangsung pada titik didih normal air selama waktu tertentu. Hasil ekstraksi yang didapat kemudian dianalisis kadar air dan kadar kandungan asam phospat yang terbentuk dari tulang ikan patin dengan proses titrasi. Dari hasil yang didapatkan semakin tinggi konsentrasi asam sulfat yang digunakan diperoleh asam phospat yang semakin tinggi pula. Kadar asam phospat terbesar yang didapat pada kondisi operasi ekstraksi dengan H2SO4 55% dengan waktu 3 jam sebesar 53,2%. Kata kunci : Ekstraksi, tulang ikan patin, kadar asam phospat Patin fish bone has 10% proportion of the whole fish body that is one of waste from processing fish. It has 14% calcium phosphate from the whole fish body. Making phosphate acid from patin fish bone aim to extract the phosphate acid and count its levels that can be produced with the temperature and the concentration solvent as the variables. The processes used in this research is extraction with H2SO4 as the solvent. 10 grams of 250 micron patin fish bone powder inserted in three-neck flask and added with 100 ml H2SO4. It was heated in water’s boiling point at certain time. Extraction results obtained then analyzed the water and acid phosphate levels formed from patin fish bone with titration. The higher sulfuric acid concentration used, the more acid phosphate concentration obtained. The largest phosphate acid concentration levels that obtained in extraction with 55% H2SO4 and 3 hours operation is 53.2%. Keywords : Extraction, patin fish bone, phosphate levels

PENGARUH JENIS DAN KONSENTRASI KATALISATOR ASAM TERHADAP SINTESIS FURFURAL DARI SEKAM PADI Rinna Juwita; Lailan Rizki Syarif; Abubakar Tuhuloula
Konversi Vol 1, No 1 (2012): Oktober 2012
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v1i1.113

Abstrak-Indonesia merupakan negara agraris dengan produksi padi yang besar, dimana seiring tingginya produksi padi maka semakin tinggi pula potensi limbah padi yang dihasilkan, salah satunya berupa sekam padi yang dapat dimanfaatkan sebagai bahan baku pembuatan furfural. Penelitian ini bertujuan untuk menganalisa pengaruh jenis dan konsentrasi katalisator asam terhadap perolehan furfural, menentukan kadar furfural yang diperoleh dengan menggunakan kedua jenis katalisator asam dalam berbagai variasi konsentrasi serta menentukan jenis dan konsentrasi katalisator asam yang dapat menghasilkan kadar furfural terbesar. Penelitian ini berlangsung dalam tiga tahapan, yaitu tahap persiapan bahan baku, proses hidrolisa dan distilasi. Persiapan bahan baku dilakukan dengan menghaluskan sekam padi hingga 80 mesh kemudian dikeringkan menggunakan oven. Proses hidrolisa menggunakan katalisator asam dilakukan selama 4 jam dengan suhu 85oC, hidrolisat disaring untuk selanjutnya dilakukan pemurnian dengan distilasi. Penelitian dilakukan dengan memvariasikan katalisator asam berupa asam sulfat dan asam klorida dengan konsentrasi 1%, 3%, 5%, 7% dan 9%. Hasil penelitian menunjukkan bahwa sintesis furfural dari sekam padi dapat menghasilkan furfural tertinggi pada katalisator asam sulfat dengan konsentrasi 1%. Adapun kadar furfural yang diperoleh pada katalisator asam sulfat dengan konsentrasi 1%, 3%, 5%, 7% dan 9% berturut-turut sebesar 1,815%; 1,256%; 0,933%; 0,733% dan 0,730%, sedangkan kadar furfural yang diperoleh pada katalisator asam klorida sebesar 1,659%; 1,126%; 0,848%; 0,737% dan 0,726%. Keywords:hidrolisa, distilasi, katalisator asam, furfural Abstract-Indonesia is an agrarian country with a large rice production, where rice production is often high, the potential of rice waste will be higher, one of the waste is rice hull that can be used as raw material for the manufacture of furfural. This research aims to determine the type and concentration of acid catalyst in the manufacture of furfural, and analyze the effect of acid catalyst type and concentration to furfural obtained. This research was done by three stages, namely preparation of raw materials, hydrolysis and distillation process. Preparation of raw materials was started by reducing the rice hull’s size up to 80 mesh and then drying. Acid catalyst hydrolysis carried out for four hours with the operating temperature of 85 oC, then filtered hydrolyzate was purified by distillation. Research was done by varying the acid catalyst in the form of sulfuric acid and hidrochloric acid with the concentration of 1%, 3%, 5%, 7% and 9%. The results showed that the synthesis of furfural from rice hull obtained the highest furfural concentration on the sulfuric acidcatalyst at 1% concentration. The furfural obtained with concentration of 1%, 3%, 5%, 7% and 9% on a sulfuric acidcatalyst respectively at 1.815%; 1.256%; 0.933%; 0.733% and 0.730%, while the furfural obtained on the hydrochloric acid catalyst respectively at 1.659%; 1.126%; 0.848%; 0.737% and 0.726%. Keywords:hydrolysis, distillation, acid catalyst, furfural

Adsorpsi Ion Pb2+ Dalam Air dengan Serbuk Ijuk Menggunakan Metode Langmuir & Freundlich Abubakar Tuhuloula
INFO-TEKNIK Vol 8, No 2 (2007): INFOTEKNIK VOL. 8 NO. 2 2007
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v8i2.1728

- The tree of sugar palm (arengan pinata) what is at bar shares there are typical fibre of chromatic of is called black fibre of palmtree have the ability to absorb the metal ion that contaminating water. Ability of fibre of palmtree fasten the metal anticipated by caused by his is lignine content, which contain a lot of electron donor on it cell wall. Lignine interaction with the metal ion can be in the form of the ion exchange, adsorption or chelat.This research purpose besides to increase energy of adsorptivity fibre of palmtree, also determine the optimum condition of adsorption for 1 gram fibre of palmtree that is balance time with the variation of time submersion to 1 – 12 hours and optimum pH with the range between 4 – 7. Pattern of Adsorption fibre of palmtree to plumbun (lead) ion of pursuant to Langmuir or Freundlich method will be able to be determined by after done by variation of concentration at optimum condition.Measurement conducted by using Atomic Absorbance Separations (AAS). Optimum condition obtained by that is time submersion to 4 hour with the amount of plumbun (lead) adsorbate as much 5.93 ppm and optimum pH 7. With the variation concentration at this condition, adsorptivity fasten along with increasing it concentration. Pattern adsorption tend to follow the Freundlich method of because value mark with the square lines (R2) linear curve is almost 1 that is 0,9849 whereas for the curve of Langmuir method only 0,2811

STUDI KASUS : PELUNAKKAN AIR MENGGUNAKAN PENUKAR KATION AMBERLITE IR – 120 Abubakar Tuhuloula
INFO-TEKNIK Vol 7, No 2 (2006): INFOTEKNIK VOL. 7 NO. 2 2006
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v7i2.1715

Air adalah senyawa anorganik dengan rumus kimia H2O. Air mempunyai bentuk yang berbeda – beda yaitu gas, padat dan cair. Ketiganya dipengaruhi oleh suhu dan tekanan udara. Kesadahan air diakibatkan oleh hadirnya ion calsium dan magnesium. Penetapan kesadahan hanya diharapkan pada penetapan kadar Ca dan Mg dalam air. Dalam proses penetapan kesadahan digunakan resin penukar kation sebagai pengikat Ca2+ dan Mg2+.Metode yang digunakan dalam penelitian ini adalah Penukar Ion dengan resin yang digunakan adalah jenis Polystirene Divinyl Benzene (SDVB) yaitu Amberlite IR – 120. Proses ini menggunakan cara kromatografi kolom sederhana. Dari hasil penelitian ternyata Amberlite mempunyai kemampuan yang cukup tinggi untuk melunakkan air sampai 80%.

PENURUNAN KONSENTRASI LOGAM Pb2+ DAN Cd2+ PADA LIMBAH CAIR INDUSTRI SASIRANGAN DENGAN METODE FITOREMEDIASI Bella Santa Rossi; Paryanti Paryanti; Yuli Ristianingsih; Abubakar Tuhuloula
Jurnal Teknologi Agro-Industri Vol 1 No 1 (2014)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat, Politeknik Negeri Tanah Laut

Pewarnaan pada proses produksi kain sasirangan menghasilkan limbah yang mengandung logam berat, diantaranya adalah timbal (Pb2+) dan kadmium (Cd2+). Penelitian ini bertujuan untuk mengetahui pengaruh proses fitoremediasi terhadap konsentrasi logam Pb2+ dan Cd2+ dari limbah cair industri sasirangan di Kalimantan Selatan, serta mengetahui pertambahan berat basah eceng gondok. Eceng gondok yang sudah dibersihkan dan diaklimatisasi ditanam dalam reaktor berisi larutan limbah dengan konsentrasi 3% (v/v); 9% (v/v); dan 15% (v/v). Sampel diambil setiap 2 hari sekali sebanyak 100 ml dan dianalisis menggunakan AAS (Atomic Absorption Spectrophotometry). Hasil penelitian ini menunjukkan bahwa konsentrasi logam Pb2+ dan Cd2+ dalam limbah setelah proses fitoremediasi terjadi penurunan. Kadar Pb2+ pada konsentrasi 3% (v/v) semula 0,197 ppm menjadi 0,062 ppm, pada konsentrasi 9% (v/v) semula 0,200 ppm menjadi 0,077 ppm dan untuk 15% (v/v) adalah 0,225 ppm menjadi 0,093 ppm. Sedangkan untuk Cd2+ konsentrasi 3% (v/v) semula 0,110 ppm menjadi 0,059 ppm, konsentrasi 9% (v/v) adalah 0,127 ppm menjadi 0,045 ppm dan untuk konsentrasi 15% (v/v) semula 0,144 ppm menjadi 0,047 ppm.

Biodegradation of Extractable Petroleum Hydrocarbons by Consortia Bacillus cereus and Pseudomonas putida in Petroleum Contaminated-Soil Abubakar Tuhuloula; Suprapto Suprapto; Ali Altway; Sri Rachmania Juliastuti
Indonesian Journal of Chemistry Vol 19, No 2 (2019)
Publisher : Universitas Gadjah Mada

Contamination of soil by the activities of exploration, production, and disposal of oil waste into the environment causes serious damage to the environmental ecosystem, the target of processing by the bacteria as a model for remediation of oil contaminated site. Thus, the study was focused on determining the biodegradation percentage of extractable petroleum hydrocarbons as a function of the oil concentration. This research was conducted in a slurry bioreactor with mixed contaminated soil to water ratio of 20:80 (wt.%). A consortium of Bacillus cereus and Pseudomonas putida bacteria 10% (v/v) and 15% (v/v) with the ratio of 2:3, 1:1, and 3:2 was inserted into the slurry bioreactor and a single reactor was used as a control. The result of identification with an initial concentration of extractable petroleum hydrocarbons of 299.53 ng/µL, after 49 days of incubation for bacterial consortium 10% (v/v), the concentration was reduced to 85.31; 32.43; 59.74; and 112.22 ng/µL respectively and the biodegradation percentage was 71.5; 89.17; 80.05; and 62.54%. As for the bacterial consortium concentration of 15% (v/v) with the same ratio and control, the effluent concentration was 12.48; 7.72; 18.93 ng/µL, respectively or the biodegradation percentage was 95.83; 97.42; 93.68%.

Development of Microbial Fuel Cell in Tofu Liquid Waste in Producing Clean Energy Tiara, Ansia; Ramadhani, Safira Redzy; Tuhuloula, Abubakar
Jurnal Bahan Alam Terbarukan Vol 12, No 2 (2023): December 2023 [Nationally Accredited Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v12i2.44106

The high need of Indonesian people for electrical energy has led to an increase in energy demand. This has triggered research efforts based on renewable technologies that are efficient and environmentally friendly. One of the renewable energy sources that is widely developed is Microbial Fuel Cell (MFC). MFC works by utilizing organic matter used by microbes as an energy source in carrying out metabolic activities. This study aims to determine the effect of Bacillus subtilis and Escherichia coli bacteria with different concentrations of 10% (v/v) and 15% (v/v) on the electrical energy generated from the tofu liquid waste substrate and observe changes in pH and Biological Oxygen Demand (BOD) in the MFC system. This research method consists of several steps, namely the preparation of electrolysis equipment, electrodes, substrates, bacterial cultures, electrolytes and MFC processes. The maximum value of voltage and current in Bacillus subtilis bacteria occurred at the 10 hours with 15% (v/v) bacterial concentration which amounted to 394 mV and 10.6 mA with a bacterial population of 16.15 × 109 CFU/mL and a power density value of 126.67 × 10-4 watt/m2. Furthermore, the maximum value for Escherichia coli bacteria occurred at the 10 hours with a voltage and current of 266 mV and 5.3 mA with a bacterial population of 15.60 × 109 CFU/mL and a power density value of 55.67 × 10-4 watts/m2. The pH value of the substrate variations with the addition of Bacillus subtilis bacteria ranged from 5-6, while with the addition of Escherichia coli bacteria variations ranged from 4-5. This system also reduces the value of biological oxygen demand.

Corncob residue as heterogeneous acid catalyst for green synthesis of biodiesel: A short review Mardina, Primata; Wijayanti, Hesti; Tuhuloula, Abubakar; Hijriyati, Erita; Sarifah
Communications in Science and Technology Vol 6 No 2 (2021)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.6.2.2021.460

The utilization of an appropriate catalyst in biodiesel production depends on the free fatty acid content of vegetable oil as a feedstock. Recently, heterogeneous acid catalysts are widely chosen for biodiesel production. However, these catalysts are non-renewable, highly expensive and low stability. Due to the aforementioned drawbacks of commercial heterogeneous acid catalyst, a number of efforts have been made to develop renewable green solid acid catalysts derived from biomass. Published literature revealed that the application of the biomass derived solid acid catalysts can achieve up to 98% yield of biodiesel. This article focused on corncob as raw material in solid acid catalyst preparation for biodiesel production. The efficient preparation method and performance comparation are discussed here. The corncob derived heterogeneous acid catalysts provides an environmentally friendly and green synthesis for biodiesel production.

Evaluation of stirring rate and pH on phenolic compounds recovery from palm kernel shell heavy phase bio-oil Wijayanti, Hesti; Mardina, Primata; Tuhuloula, Abubakar; Tri Ananda, Lidya; Aulia Rauf, Zahwa Syafa; Lutfi, Auliyani; Fadil Riyadi, Syahril
Communications in Science and Technology Vol 8 No 1 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.1.2023.1119

This study aims to develop an efficient separation method for phenolic compounds derived from the heavy phase of bio-oil produced by the pyrolysis of palm kernel shell. Two variables were investigated during phenolic compound extraction using dichloromethane, i.e., stirring rate and pH of the solution. In both variables, the composition, yield, and distribution coefficient of the extracted phase were investigated. The results showed that the phenolic compounds' extraction favors high stirring rate and it obtained more results at more acidic conditions (lower pH). The best conditions for phenolic compounds were at 300 rpm of stirring rate and pH 4, which resulted in 77.88 % of yield and a 1.13 distribution of coefficient for the total phenols. The findings of this research will contribute to the better separation of phenolic compounds in bio-oil for improving its fuel characteristics as well as producing value-added chemicals.

Co-Authors Abdul Hadi Agus Budianto Ali Altway Ardhiannas Fadhila Ardhiannas Fadhila, Ardhiannas Aulia Rauf, Zahwa Syafa Badruzsaufari Badruzsaufari Bella Santa Rossi Eky Novianarenti Erlinda Ningsih, Erlinda Etha Nur Fitriana Etha Nur Fitriana Fadil Riyadi, Syahril Febrina Rantifa Sari Febrina Rantifa Sari Hendro Budiarto Hendro Budiarto, Hendro Hesti Wijayanti Hijriyati, Erita Kartika Udyani Lailan Rizki Syarif Lailan Rizki Syarif, Lailan Rizki Laksono Trisnantoro Lestari Budiyarti Lestari Budiyarti Lutfi, Auliyani Muhammad Fitrah Afriyadi Muhammad Fitrah Afriyadi, Muhammad Fitrah Mursyidin, Dindin Hidayatul Paryanti Paryanti Primata Mardina Ramadhani, Safira Redzy Raudhah Annissa Raudhah Annissa, Raudhah Ridho Roihanul Falah Ridho Roihanul Falah, Ridho Roihanul Rinna Juwita Rinny Jelita, Rinny Sarifah Sri Rachmania Juliastuti Suprapto Suprapto Susilo, Tanto Budi Tiara, Ansia Tri Ananda, Lidya Yudhi Ahmad Nazari Yuli Ristianingsih

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