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All Journal Reaktor International Journal of Science and Engineering (IJSE) International Journal of Renewable Energy Development Jurnal Ilmu Lingkungan JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Waste Technology Bulletin of Chemical Reaction Engineering & Catalysis Widyariset JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan Historika ASEAN Journal of Chemical Engineering Widyariset Jurnal Pengabdian Vokasi Journal of Vocational Studies on Applied Research Bulletin of Chemical Reaction Engineering & Catalysis

B Budiyono

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Author-ID : 244597

Religion Aerospace Engineering Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology 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 Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics Public Health Social Sciences Other

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OPTIMALISASI PEMBELAJARAN SEJARAH MELALUI PEMANFAATAN MEDIAAUDIO VISUAL UNTUK MENINGKATKAN MINAT BELAJAR SISWA SMA TARUNA NUSANTARA KELAS XI IATAHUN AJARAN 2012/2013 Hastuti, Tri Puji; Budiyono, B.; Joebagio, Hermanu
HISTORIKA Vol 18, No 1 (2016): Pembelajaran Sejarah dan Nation Building
Publisher : Sebelas Maret University (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/historika.v18i1.29656

Background: Innovation and improvisation in learning the use of history in the form of audio-visual media can be an alternative to overcome the problems of saturation in learning so that students are expected to increasingly keen to explore the lessons and learning outcomes can be achieved in the history of this diharapkan.Penelitian aims to increase the activity of teachers, students, and the learning process with the history and use of audio-visual media constructivism approach and models kelompokdi discussion Taruna Nusantara XI IPS1 Magelang regency.Methods: This is a Class Action Research (CAR) with the object of research siswaSMA Taruna Nusantara XI IPS1 Magelang District in the second semester of the 2012/2013 academic year. Data were collected through observation, document review and analysis of qualitative descriptive. To give meaning success of the measures used relative criteria that action is considered successful if there is an increase from the previous learning processes. This study was conducted over three rounds (cycle) and learning strategies, improvements in each cycle.Results: The use of audio-visual media combined with a constructivist approach and model of group discussions can increase the activity of teachers, students, learning and growing interest in learning so that the learning achievement increased. Therefore, this model should be done as a learning model variations subjects Sejarahsehingga students feel happy that affect the formation of learning fun and a high interest in learning. The success of this study occurred on the third cycle with pre testnya learning outcomes is the number 2055, an average of 79, the highest score of 90, the lowest value of 60, the number of values under KKM 11, 57.7% completeness. While the results of post test total value of 2090, an average of 80.40 the highest score of 100, the lowest value of 45, the student does not complete the KKM by 5 students, and the percentage of 80.8% completeness.In a presentation with audio-visual media in small groups to create a great responsibility to concentrate and understand the material so that the attention of students in 100%.Â

Biogas Production from Cow Manure Putri, Dewi Artanti; Saputro, Roy R; Budiyono, B
International Journal of Renewable Energy Development Vol 1, No 2 (2012): July 2012
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.1.2.61-64

The production of biogas from livestock waste manure in particular is one of the alternative utilization of organic wastes that can be implemented in Indonesia since there is a huge potential of bio-energy in Indonesia. This study utilizes cow manure as the raw material for making biogas and it is coupled with a cow rumen fluid and water. The objective of this study is to determine the effect of manure, rumen, and water composition in biogas production. The research was conducted in anaerobic for 60 days. The composition of manure, water, and the rumen were vary following the variable and ratio; variable A (manure and water); variable B (manure and rumen). The results indicate that the variable A (manure and water) with a 1:3 ratio, and the variable B (manure and rumen) with a 1:2 ratio produced the highest volume of biogas compared to other ratios. The highest biogas production occurred on average at day 23.

KOMBINASI ULTRAFILTRASI DAN DISSOLVED AIR FLOTATION UNTUK PEMEKATAN MIKROALGA I Nyoman Widiasa; A A Susanto; B Budiyono
Reaktor Volume 15, No.1, APRIL 2014
Publisher : Dept. of Chemical Engineering, Diponegoro University

Abstrak Mikroalga merupakan mikroorganisme fotosintetik prokariotik atau eukariotik yang dapat tumbuh dengan cepat. Pemanfaatan mikroalga tidak hanya berorientasi sebagai pakan alami untuk akuakultur, tetapi terus berkembang untuk bahan baku produksi pakan ternak, pigmen warna, bahan farmasi (β-carotene, antibiotik, asam lemak omega-3), bahan kosmetik, pupuk organik, dan biofuel (biodiesel, bioetanol, biogas, dan biohidrogen. Studi ini bertujuan untuk menginvestigasi kombinasi ultrafiltrasi (UF) – dissolved air flotation (DAF) untuk pemekatan mikroalga skala laboratorium. Hasil penelitian menunjukkan bahwa penurunan fluks membran UF secara tajam sebagai akibat dari deposisi sel mikroalga terjadi pada 20 menit pertama proses filtrasi. Backwash pada interval 20 menit selama 10 detik dengan tekanan 1 bar memberikan pengendalian fouling yang efektif dalam nilai kestabilan fluks yang layak. Membran UF yang digunakan dapat memberikan selektivitas pemisahan biomassa mikroalga ~ 100%. Kualitas permeat sangat stabil, yaitu kekeruhan < 0,5 NTU, kandungan organik < 10 mg/L, dan warna < 10 PCU. Lebih lanjut, pemekatan retentat membran dengan DAF pada tekanan saturasi 6 bar dapat menghasilkan pasta mikroalga dengan konsentrasi 20 g/L. Koagulan PAC perlu ditambahkan kedalam umpan DAF dengan dosis 1,3–1,6 mg PAC/mg padatan tersuspensi. Kata Kunci: ultrafiltrasi; dissolved air flotation; pemanenan mikroalga; pemekatan mikroalga Abstract COMBINATION OF Ultrafiltration and Dissolved Air Flotation for Microalgae CONCENTRATION. Microalgae is a prokaryotic photosynthetic microorganism or eukaryotic microorganism that proliferate rapidly. Cultivation of the microalgae is not only oriented as natural food for aquacultures, but also developed for animal food, color pigment, pharmaceutical raw material (β-carotene, antibiotic, fatty acid omega-3), cosmetic raw material, organic fertilizer, and biofuels (biodiesel, bioethanol, biogas, and biohydrogen. This study is aimed to investigate the potential of combination of ultrafiltration (UF) and dissolved air flotation (DAF) for concentration of microalgae in laboratory scale. The experimental results showed that fluxes of the UF membrane decreased sharply due to deposition of microalgae biomass during first 20 minutes of filtration. Periodically backwash using the UF permeate (backwash interval = 20 minutes; backwash duration = 10 seconds; backwash pressure = 1 bar) gave an effective fouling control to maintain reasonable stable fluxes. In addition, the UF membrane gave separation of microalgae biomass ~ 100%. Permeate quality is strongly stable in which turbidity < 0.5 NTU, organic content < 10 mg/L, and color < 10 PCU. Moreover, concentration of the UF retentate by DAF under saturation pressure of 6 bars was able to produced microalgae feedstock having 20 g/L dry microalgae. PAC is required for DAF feed with dosage of 1.3–1.6 mg PAC/mg suspended solids.

SINTESIS MEMBRAN ULTRAFILTRASI NON FOULING UNTUK APLIKASI PEMPROSESAN BAHAN PANGAN Luqman Buchori; Heru Susanto; Budiyono Budiyono
Reaktor Volume 13, Nomor 1, Juni 2010
Publisher : Dept. of Chemical Engineering, Diponegoro University

Membran ultrafiltrasi (UF) telah terbukti sebagai proses yang menjanjikan untuk aplikasi di bidang pemprosesan bahan pangan. Namun, peristiwa fouling dapat menurunkan kinerja membran secara signifikan. Meskipun banyak metode pengendalian fouling telah diusulkan, dalam banyak kasus kinerja proses sangat dipengaruhi oleh membran sebagai jantung dari proses. Dalam makalah ini pengendalian fouling dilakukan dengan memodifikasi permukaan membran dengan teknik kopolimerisasi foto-grafting. Acrylic acid (AA), acrylamido methylpropane sulfonic acid (AMPS), poly(ethylene glycol) methacrylate (PEGMA), dan N,N-dimethyl-N-(2-methacryloyloxyethyl-N-(3sulfopropyl)ammonium betaine sebagai senyawa zwitterion (ZI) digunakan sebagai monomer fungsional. Pengaruh waktu iradiasi terhadap efektifitas modifikasi telah diamati. Kinerja membran hasil modifikasi kemudian diuji dengan menggunakan berbagai model larutan foulant yang meliputi larutan protein, larutan polisakarida dan larutan polifenol. Hasil penelitian menunjukkan bahwa sifat non fouling membran sangat jelas dapat ditingkatkan baik dengan PEGMA maupun dengan ZI. Secara umum, modifikasi menggunakan PEGMA menunjukkan kinerja yang lebih baik. Larutan polifenol menunjukkan karakter foulant yang paling kuat diantara model foulant.

FOULING BEHAVIOR OF MODIFIED CELLULOSE ACETATE ASYMMETRIC MEMBRANES FOR DIFFERENT BRACKISH WATER TREATMENT Tutuk Djoko Kusworo; B Budiyono; Eva Sofiana; Ulfah Nurul Aulia Rochyani; Dani Puji Utomo
Reaktor Volume 17 No.1 Maret 2017
Publisher : Dept. of Chemical Engineering, Diponegoro University

Water treatment technology which is being widely developed is membrane technology as an alternative technology with sieving mechanism principle.The main purposes of this research are to investigate the effects of additives and thermal treatment on the cellulose acetate membrane morphology and performance in treating brackish water.The membrane was fabricated by preparation of dope solution consits of cellulose acetate and acetone. The membrane was casted via NIPS method using mechanic casting knife. Dope solution was prepared by varying the PEG concentration of 1 and 5wt-% and the annealing temperature at 60°C and 25°C for 10 seconds. The backwash technique was used to solve fouling mechanism in this system .The results of SEM and FTIR showed that theb higher PEG addition to the dope solution resulted in larger membrane pore size and increase the hydrophilic properties of membrane. However the higher temperature and the longer annealing timg, the skin layer of membrane become denser. The result was also shown that back wash technique can reduced fouling phenomenon in the membrane.

Application of Activated Carbon Mixed Matrix Membrane for Oxygen Purification Tutuk Djoko Kusworo; Ahmad Fauzi Ismail; Ahmad Mustafa; , Budiyono
International Journal of Science and Engineering Vol 1, No 1 (2010)
Publisher : Chemical Engineering Diponegoro University

This study is performed primarily to investigate the effect of activated carbon on oxygen separation performance of polyethersulfone mixed matrix membrane. In this study, polyethersulfone (PES)-activated carbon (AC) mixed matrix membranes were fabricated using dry/wet technique. This study investigates the effect of polyethersulfone concentration and activated carbon loading on the performance of mixed matrix membrane in terms of permeability and selectivity of O2/N2 gas separation. The fabricated flat sheet mixed matrix membranes were characterized using permeation test, Field Emission Scanning Electron Microscopy (FESEM) analysis and Differential Scanning Calorimetry (DSC). It was found that the activated carbon loading affected the gas separation performance of mixed matrix membrane. PES- 1wt% AC membrane yielded 3.75 of O2/N2 selectivity, however 5 wt% of AC can produced 5 O2/N2 selectivity

Biogas Production From Cassava Starch Effluent Using Microalgae As Biostabilisator B. Budiyono; Tutuk Djoko Kusworo
International Journal of Science and Engineering Vol 2, No 1 (2011)
Publisher : Chemical Engineering Diponegoro University

The rapid growing of Indonesian population is emerging several critical national issues i.e. energy, food, environmental, water, transportation, as well as law and human right. As an agricultural country, Indonesia has abundant of biomass wastes such as agricultural wastes include the cassava starch wastes. The problem is that the effluent from cassava starch factories is released directly into the river before properly treatment. It has been a great source of pollution and has caused environmental problems to the nearby rural population. The possible alternative to solve the problem is by converting waste to energy biogas in the biodigester. The main problem of the biogas production of cassava starch effluent is acid forming-bacteria quickly produced acid resulting significantly in declining pH below the neutral pH and diminishing growth of methane bacteria. Hence, the only one of the method to cover this problem is by adding microalgae as biostabilisator of pH. Microalgae can also be used as purifier agent to absorb CO2.The general objective of this research project was to develop an integrated process of biogas production and purification from cassava starch effluent by using biostabilisator agent microalgae. This study has been focused on the used of urea, ruminant, yeast, microalgae, the treatment of gelled and ungelled feed for biogas production, pH control during biogas production using buffer Na2CO3, and feeding management in the semi-continuous process of biogas production. The result can be concluded as follows: i) The biogas production increased after cassava starch effluent and yeast was added, ii) Biogas production with microalgae and cassava starch effluent, yeast, ruminant bacteria, and urea were 726.43 ml/g total solid, iii) Biogas production without microalgae was 189 ml/g total solid.

Fabrication and Characterization of Polyimide-CNTs hybrid membrane to enhance high performance CO2 separation Tutuk Djoko Kusworo; Budiyono Budiyono; Ahmad Fauzi Ismail; Azeman Mustafa
International Journal of Science and Engineering Vol 8, No 2 (2015)
Publisher : Chemical Engineering Diponegoro University

This study investigates the CO2 separation performance of a hybrid membranes flat sheet based on polyimide incorporated with carbon nanotubes (CNTs) particles. CNTs was selected and its loading were a 1 wt% in total solid. The hybrid composite membranes were fabricated in order to increase their separation performance for the gaseous mixture of CO2 and CH4. Hybrid Composite membrane incorporated carbon nanotubes were mannufactured by the dry-wet phase inversion technique using flat sheet membrane casting machine system, in which the CNTs were embedded into the polyimide membrane and the resulting membranes were characterized. The results from the FESEM, DSC and FTIR analysis confirmed that chemical modification on carbon nanotubes surface had taken place. Sieve-in-a-cage’ morphology observed shows the poor adhesion between polymer and unmodified CNT. The results revealed that the good multi-wall carbon nanotubes dispersion leads to enhanced gas permeation properties. It is also concluded that addition of carbon nanotubes particles into the matrix of Polyimide polymer has significant effect on the membrane structure and properties.

Study on Treatment of Slaughterhouse Wastewater by Electro-coagulation Technique B. Budiyono; I Nyoman Widiasa; Seno Johari
International Journal of Science and Engineering Vol 1, No 1 (2010)
Publisher : Chemical Engineering Diponegoro University

Electro-coagulation (EC) is well known as a technique for removing suspended solids as well as oils and greases from wastewater. The aims of this research are to study the performance of the EC technique to treat a high strength wastewater from slaughterhouse in batchwise mode. The effect of various process variables such as number and electrode material, initial pH, suspended solid (SS) content, and operating time was investigated The electrolytic cell (electro-coagulator) used was a 600 ml cylinder glass reactor with working volume 400 ml and equipped by magnetic stirrer without temperature control. Cast iron (Fe) and aluminum (Al) cylinder were used as anode/cathode pair. The number of electrode was varied 1 and 2 pairs. The effective area of the electrode pair was 6.28 cm2. The DC power supply was controlled by a voltmeter and be adjusted constant at 125 A/m2 for each test runs. The initial SS concentration were varied from 1250, 2100, 3000, and 4000 mg/L by diluting wastewater. It is found that effluent temperature depends on SS and increases up to 98 °C when SS content was 4000 mg/L. One and two pairs of Fe-Al electrode will give SS removal efficiency are 97.2 and 99.6 %, respectively. However, the higher electrode number will need the shorter time to get certain removal efficiency of SS. Number of electrodes didn’t give the significant impact to the final pHs. With initial pH 7.05 both two pair of electrode will give the final pH relatively constant to 7.80. Further work will be conducted to optimize the CD and charge loading to avoid the excessive temperature increase

CO2 Removal from Biogas Using Carbon Nanotubes Mixed Matrix Membranes Tutuk Djoko Kusworo; Ahmad Fauzi Ismail; , Budiyono; I Nyoman Widiasa; Seno Johari; , Sunarso
International Journal of Science and Engineering Vol 1, No 1 (2010)
Publisher : Chemical Engineering Diponegoro University

A new type of mixed matrix membrane consisting of polyethersulfone (PES) and carbon nanotubes (CNTs) is prepared for biogas purification application. PES mixed matrix membrane with and without modification of carbon nanotubes were prepared by a dry/wet phase inversion technique using a pneumatically membrane casting machine system. The modified carbon nanotubes were prepared by treating the carbon nanotubes with chemical modification using acid treatment to allow PES chains to be grafted on carbon nanotubes surface. The results from the FESEM, DSC and FTIR analysis confirmed that chemical modification on carbon nanotubes surface had taken place. Meanwhile, the nanogaps in the interface of polymer and carbon nanotubes were appeared in the PES mixed matrix membrane with unmodified of carbon nanotubes. The modified carbon nanotubes mixed matrix membrane increases the mechanical properties and the permeability of all gases. For PES-modified carbon nanotubes mixed matrix membrane the maximum selectivity achieved for CO2/CH4 is 23.54

Co-Authors . Widayat A A Susanto Agus Purwanto Ahmad Fauzi Ismail Ahmad Fauzi Ismail Ahmad Fauzi Ismail Ahmad Fauzi Ismail Ahmad Mustafa Anggun Puspitarini Siswanto Azeman Mustafa Basukiyatno, B. Beni Habibi Dani Puji Utomo Danny Soetrisnanto Dedy Anwar Saleh Pohan Dewi Artanti Putri E. Sofiana Edy Supriyo Eva Sofiana Fadillah Fathir Mahmud Fofana Fahmi Arifan Fahriya Puspita Sari Gita Khaerunnisa Gita Permana Putra Hastuti, Tri Puji Heny Kusumayanti Heny Kusumayanti Hermanu Joebagio Hermawan Dwi Ariyanto Heru Susanto Humaira Rofidah Zahra I Nyoman Widiasa Ida Hayu Dwimawanti Ifana Ifana Ihwan Fauzi Ika Rahmawati Iman Setiono Indra Hutama Indro Sumantri Iqbal Syaichurrozi K Kosim Luqman Buchori Maria Octoviane Dyan MIFTAH FARHANA Mohamad Endy Y Yulianto Nikie Astorina Yunita Dewanti Nurfitri Astuti Nurjazuli Nurjazuli P Purwanto Pangi Pangi Purwanto Purwanto R.T.D Wisnu Broto Rima Evalia Yusmita Rizka Amalia Roy R Saputro S Sugiyanto S Sutjitro Seno Djohari Seno Johari Seno Johari Seno Johari Seno Johari Seno Johari Siswo Sumardiono Sunarso . Syafrudin Syafrudin T.D. Kusworo Tri Retnaningsih Soeprobowati Tutuk Djoko Kusworo U. N. A. Rochyani Ulfah Nurul Aulia Rochyani Vita Paramita Wahid Hasyim Wahyu Bambang Widayatno Zulfaidah Aryani

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