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All Journal JOURNAL OF COASTAL DEVELOPMENT Reaktor International Journal of Renewable Energy Development TEKNIK METANA JURNAL KIMIA SAINS DAN APLIKASI JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Jurnal technoscientia Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Bulletin of Chemical Reaction Engineering & Catalysis Majalah Ilmiah MOMENTUM Khazanah Informatika: Jurnal Ilmu Komputer dan Informatika Indonesian Journal of Chemistry Indonesia Journal of Halal AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Indonesian Journal of Chemical Analysis (IJCA) Jurnal Kreativitas PKM BILANCIA Unnes Journal of Public Health Jurnal Teori dan Aplikasi Fisika Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Journal of Metallurgical Engineering and Processing Technology Indonesian Journal Of Energy And Mineral ISJOUST Jurnal PGSD Uniga Bulletin of Chemical Reaction Engineering & Catalysis

Heru Susanto

Department Of Chemical Engineering, Faculty Of Engineering, Universitas Diponegoro, Jl. Prof. Soedharto SH, Tembalang, Semarang 50275, Indonesia

Author-ID : 395992

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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DESAIN DAN IMPLEMENTASI SISTEM MONITORING TEGANGAN DAN ARUS MOTOR INDUKSI TIGA PHASE MENGGUNAKAN KONSEP INTERNET OF THINGS (IOT) Susanto, Heru; Nurcahyo, Agus
Jurnal Teknologi Technoscientia Vol 11, No 1 (2018):
Publisher : IST AKPRIND YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar

MODIFIKASI KARBON AKTIF SEBAGAI ADSORBEN UNTUK PEMURNIAN BIOGAS Susanto, Heru; Wijaya, Wishnu; Widiasa, I Nyoman
TEKNIK Volume 34, Nomor 1, Tahun 2013
Publisher : Diponegoro University

The use of biogas as an environmentally friendly fuel is limited by the presence of CO2 and water vapor asimpurities. Therefore, biogas purification for CO2 and water vapor removal is very important step during biogasapplication. This paper presents a process for biogas purification by means of adsorption using either modifiedor unmodified activated carbon as an adsorbent. The modification was performed by passing a pure ammoniagas into activated carbon in a quartz reactor. The results showed that the adsorption process using modifiedactivated carbon decreases CO2 content in biogas up to 67.5% whereas for unmodified activated carbon was of43%. Further, the modification increased CO2 adsorption capacity from ~28 to ~38 mg CO2/g adsorbent. Theincrease in feed temperature decreases CO2 adsorption capacity.

PENGGUNAAN MEMBRAN ULTRAFILTRASI DALAM PEMBUATAN SARI BUAH RAMBUTAN JOS, BAKTI; Susanto, Heru; Kuntolaksono, Satrio; Ariyanto, Yanuar
METANA Vol 6, No 02 (2010): Desember 2010
Publisher : Universitas Diponegoro

Abstract Â Hairy fruit (Nephelium sp) is fruit of horticultural belong in family Sapindacaeae. Membrane is a thin layer separates two phases which allow the displacement of specific components and hold other components that do not being needed. Ultrafiltration is a filtration process using membranes that filter out particles with a size of 20 to 1000 Angstrom. Results of ultrafiltration has high purity (0.4 to 0.6 NTU turbidity) than results from conventional manner (1.5-3 NTU turbidity). Yield gained was 5-8% higher than that gained from conventional. Dependent variable used is kind of hairy fruits (crops and cans). The independent variable is the pressure 2 kg/cm2, 3 kg/cm2, 0.4 kg/cm2, 0.5 kg/cm2, 0.6 kg/cm2 and the type of membrane (PES and hydrosart). The result of the study showed that greater operation pressure resulted in greater turbidity, and greater flux. The greater flux resulted smaller selectivity and pass the requirement of Environmental Protection Agency, USA. Â Key word : Hairy fruits, juice, membrane, ultrafiltration

Electrical Conductivity of Carbon Electrodes by Mixing Carbon Rod and Electrolyte Paste of Spent Battery Handaja, Suka; Susanto, Heru; Hermawan, Hermawan
International Journal of Renewable Energy Development Vol 10, No 2 (2021): May 2021
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2021.31637

As a consequence of increasing battery use, spent batteries are increasingly contributing to solid waste. This situation has the potential to create a severe environmental problem. Thus, the utilization of these spent batteries, including the reuse of some components, is essential. The reusable components of the spent battery are carbon rods and electrolyte pastes. In this work, these components were utilized to prepare a carbon-based electrode for reverse electrodialysis. These electrodes can be an alternative to commercial Ti-based electrodes. The important characteristics of an electrode are the electrical conductivity, porosity, and surface area of the particles. This study aimed to determine the best electrical conductivity exhibited by various mixtures of carbon rods and electrolyte paste taken from spent batteries. The spent battery contained 95% carbon, and the electrolyte paste of the spent battery contained 64% carbon, 19% zinc, and 5% manganese. Before mixing, the carbon rods were powdered using ball mills for 4 h; 85.6% of particles were sized <1 Î¼m. The best electrical conductivity was obtained from a mixture of carbon rods and electrolyte paste in the weight ratio of 7:2, with electrical conductivity, porosity, and surface area of 2.75 S/cm, 0.019 cc/g, and 15.936 m2/g, respectively.

Design and Implementation of a Smart Home Security System Using Voice Command and Internet of Things Susanto, Heru; Nurcahyo, Agus
Khazanah Informatika Vol. 6 No. 2 October 2020
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/khif.v6i2.9320

A smart home security system consists of various sensors and recorders to automatically provide data on the conditions of a house. Home electronic equipment may be controlled from distant places using the internet of things technology and speech recognition. This research aims to develop a smart home security system by monitoring fire hazards and theft. It helps also control electronic equipment using voice commands that is useful especially for the disabled. The system design consists of hardware, software, and application design. Hardware design uses ESP8266, Arduino Mega 2560, MicroSD Card module, VC0706 serial camera, DHT22, magnetic door switch, PIR HC SR501, and Google Assistant device. Software design uses Arduino IDE for programming Arduino Mega and ESP8266. Applications used in the design are Adafruit.io, Thingspeak, and IFTTT (If This Then That). Voice commands control home electronic devices (lights), while fire and theft are monitored through the use of sensors and cameras. The system test shows that voice command can control lights on and off at an accuracy of 88%. Temperature and humidity sensors acquire data and send them to Thingspeak application for online fire monitoring. Sensors to detect intruders in the form of door switch and PIR work well and automatically activate cameras that capture objects to store in a MicroSD card.

Pengendalian Organisme Pengganggu Tanaman Melalui Solarisasi Tanah Hamdani, Kiki Kusyaeri; Susanto, Heru
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 4 No 2 (2020): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Organisme pengganggu tumbuhan (OPT) seperti hama, patogen, dan gulma menimbulkan masalah dalam budidaya tanaman sehingga perlu upaya penanganan yang tepat. Solarisasi tanah merupakan salah satu alternatif pengendalian OPT tersebut. Makalah ini membahas informasi tentang pengendalian organisme pengganggu tanaman dengan teknologi solarisasi. Beberapa komponen yang berperan dalam proses solarisasi yaitu radiasi matahari sebagai sumber energi, mulsa plastik sebagai pengubah sumber energi, serta lengas tanah sebagai penangkap dan penghantar panas yang dihasilkan plastik pada jeluk tanah yang lebih dalam. Solarisasi tanah bersifat ramah lingkungan dan dilakukan sebelum tanam dengan mengelola energi panas dari radiasi matahari. Solarisasi tanah terbaik yaitu dengan menggunakan lembaran plastik transparan karena bersifat tembus cahaya dimana sebagian besar cahaya ditransmisikan melalui lembaran plastik dan hanya sedikit yang diserap dan dipantulkan. Suhu tanah yang tinggi akibat solarisasi tanah dapat menekan patogen tanah, hama tanah, dan propagul gulma serta dapat meningkatkan kesuburan tanah, pertumbuhan dan hasil tanaman.

Modeling Social, Health, and Vaccines Intervention in Time of Covid-19 Pandemic Impacted in Jakarta - Indonesia Setiawan, Arief Ameir Rahman; Susanto, Heru; Adjie, Firman Tri; Prasetiya, Hafiizh; Laksmono, Joddy Arya; Sulaswatty, Anny; Wiloso, Edi Iswanto; Hidayat, Dudi
Unnes Journal of Public Health Vol 10 No 1 (2021): Unnes Journal of Public Health
Publisher : Universitas Negeri Semarang (UNNES) in cooperation with Association of Indonesian Public Health Experts (Ikatan Ahli Kesehatan Masyarakat Indonesia (IAKMI))

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujph.v10i1.43065

Since the first outbreak of SARS-CoV-2 worldwide, research on modeling and simulation has grown, particularly to estimate the peak and end time of the pandemic which has been exceeded in some cases. This study aims to model the current virus spread with discrete event simulation, using the case of Jakarta. About 2 million of Jakarta's susceptible population was used for the the model's input which ran for a year. The data was obtained from past records and were divided into three main timelines (i.e. initial stage, large scale restriction and new normal) in order to validate the model with real cases step by step. Scenario analysis was then performed by evaluating five possible interventions such as: existing scenarios, social and health intervention, mass vaccination and hybrid intervention. The results show that the model represents real cases with a variation of less than 5% during the timeline. Furthermore, scenario analysis showed that mass vaccination, hybrid and social intervention provide the least positive cases in the system. This study recommends that hybrid intervention should be used while the vaccine is being mass produced, and the implementation of social intervention should be highlighted.

The Mitigation of CO2 Emissions in the Sea Water Desalination Plant with Reverse Electrodialysis Power Generation Handaja, Suka; Susanto, Heru; Hermawan
Indonesian Journal of Energy and Mineral Vol. 1 No. 1 (2021): IJoEM, Vol 1, No 1, 2021
Publisher : Politeknik Energi dan Mineral Akamigas

Climate change is a major issue that is very interesting to discuss. Climate change is believed to be caused by the greenhouse gas effect. CO2 is one of the gases that causes the greenhouse gas effect. Therefore, to avoid the dangers of climate change, reducing CO2 emissions is the main topic in various articles. In this article, CO2 emission mitigation is analyzed in the sea water desalination plant using reverse electrodialysis power generation. Reverse electrodialysis is a power plant that does not produce CO2 emissions which converts energy from the difference in salinity of two solutions into electrical energy through selective ion membrane technology. There are 8 sea water desalination (SWD) unit which produces 242 tons/h of clean water for industrial activity and blowdown water of 3,161 tons/h, the blowdown water is wastewater. The SWD unit requires 3.043 tons/h of seawater as feed water, 0.164 MW of electricity and 86 tons/h of steam worth 64.1 MW as an energy. The energy are met from the combined heat and power operation. Combined heat and power require of fuel oil and fuel gas which produce CO2 emissions of 1,352,445,626 kgCO2/y. From the analysis on the SWD plant, the CO2 emission is 148,411,874 kgCO2/y. By implementing reverse electrodialysis power generation, blowdown water at the SWD plant which has a salinity concentration of 680 mol/m3 can produce electricity of 0.414 MW (3,636 MWh/y). If the electricity generated is used to substitute the electricity needs at the refinery plant, the CO2 emissions that can be mitigated is 2,955,915 kgCO2/y

FRESH WATER PRODUCTION IN COASTAL AND REMOTE AREAS BY SOLAR POWERED LIQUID-LIQUID MEMBRANE CONTACTOR Heru Susanto; I G. Wenten
JOURNAL OF COASTAL DEVELOPMENT Vol 6, No 3 (2003): Volume 6, Number 3, Year 2003
Publisher : JOURNAL OF COASTAL DEVELOPMENT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (607.864 KB)

Liquid-liquid membrane contactor (LLMC) is a new desalination process using microporous hydrophobic membrane. The temperature difference at two solution-membrane interfaces gives rise to a trans membrane vapor pressure difference that drives the flux. In this work, the effect of process parameters on LLMC performance has been done. The process parameters consist of feed and permeate temperatures, cross flow velocity, feed concentration and mode of operation. In addition, this paper focuses on the development of LLMC by using solar and wind as energy sources. In this experiments micro porous hydrophobic hollow fiber polypropylene membrane with 0,2 mm was used as a contacting device. The experiment were conducted at temperature of 25-80oC, cross flow velocity of 0.02-0.2 m/s and solute concentration of 0-110.000 mg/L. Results show that the flux was influenced by the feed and permeate temperatures, the cross flow velocity and the concentration of solute. The increase of feed temperature increases the flux exponentially, whereas the flux seems to increase linearly with the increase of cross flow velocity. On the other hand, the flux was not significantly affected by the solute concentration. Furthermore, the flux in the counter current mode was lower than in the co-current mode. The average pure water fluxes obtained were in the range of 2-3 l/(m2h), whereas the products concentrations were in the range of 2-5.3 mg/L depending on the feed concentration. The operation of solar powered LLMC up to 10 days shows a very stable performance.

KARAKTERISTIK INTERAKSI MEMBRAN-FOULANT DAN FOULANT-FOULANT SEBAGAI DASAR PENGENDALIAN FOULING Heru Susanto; Asteria Apriliani Susanto; I Nyoman Widiasa
Reaktor Volume 14, Nomor 1, April 2012
Publisher : Dept. of Chemical Engineering, Diponegoro University

THE CHARACTERISTICS OF MEMBRANE-FOULANT AND FOULANT-FOULANT INTERACTIONS AS THE BASIS FOR CONTROL OF FOULING. Industrial membrane applications for solid liquid and liquid-liquid filtration are limited by fouling and concentration polarization. Because fouling significantly reduces the membrane performance and often changes the membrane selectivity, efforts to overcome the fouling problem are very important from practical applications point of view. This paper presents the basic knowledge required to control fouling and recent development in fouling control including the method developed by the author. Control of fouling can be done by (i) commercial membrane modification (post modification) by photo-graft polymerization, (ii) modification by polymer blending during membrane manufacturing and (iii) integration of a pretreatment into membrane processes. The results showed that all the developed methods can significantly reduce the resulting fouling; however, none of the method could totally remove the occurring fouling. The understanding of the membrane-foulant and foulant-foulant interactions is the key to success in control of fouling.Aplikasi teknologi membran untuk pemisahan padat cair di berbagai industri dibatasi oleh peristiwa fouling yang menyebabkan penurunan laju produk dan perubahan selektifitas membran. Oleh karena itu, pengendalian fouling merupakan upaya yang mutlak harus dilakukan. Makalah ini mempresentasikan pengetahuan dasar yang diperlukan untuk pengendalian fouling dan perkembangan terkini dalam pengendalian fouling termasuk hasil-hasil yang telah dikembangkan oleh penulis. Pengendalian fouling dilakukan dengan (i) modifikasi membran komersial (post modification) menggunakan metode photo-grafting, (ii) modifikasi dengan pencampuran polimer selama proses pembuatan (polymer blend) dan (iii) integrasi unit perlakuan awal (pre-treatment) dengan proses membran. Hasil penelitian menunjukkan bahwa kesemua metode yang dikembangkan dapat mengurangi terjadinya fouling secara signifikan. Namun, tidak ada satu pun metode yang dapat mengurangi fouling dengan sempurna. Pemahaman terhadap interaksi membran-foulant dan foulant-foulant merupakan kunci sukses dalam pengendalian fouling.

Co-Authors . Widayat Addina Nur Adi Darmawan Adjie, Firman Tri Anny Sulaswatty, Anny Aprilina Purbasari Ariestya Meta Devi Ariestya Meta Devi Asteria Apriliani Susanto B Budiyono Bakti Jos Bambang Cahyono Bambang Pramudono Berkah Fajar Dini Karunia Sari Dudi Hidayat Dwi Titik Apriyanti Dyah Hesti Wardhani Erdi Guna Utama Fajar Wulandari Faleh Setia Budi Fauzi Ahmad Bogas Gunawan Gunawan Hamdani, Kiki Kusyaeri Handaja, Suka Hanifa Zakiyatul Urbach Heny Kusumayanti Hermawan Hermawan Hermawan Hesti Rahayu I G. Wenten I Nyoman Widiasa I Nyoman Widiasa Insan Suwanto Joddy Arya Laksmono Khairurrijal Khairurrijal Kuwat Triyana Lulluil Mahsunnah Lulluil Mahsunnah Luqman Buchori Marga Dharma Prayoga Marta Chandra Anikke Putri Meindy Catur Risqiputra Muhammad Luqman Bukhori Ngadiwiyana M.Si. S.Si. Nita Aryanti Nor Basid Adiwibawa Prasetya Novery Lysbetti Novintan Elistya Nur Firdausi Husrin Nur Rokhati Nur Syamsu Nurcahyo, Agus Nurcahyo, Agus Prasetiya, Hafiizh Rika Wahyuni Risa Suryana Satrio Kuntolaksono Setiawan, Arief Ameir Rahman Siswo Sumardiono Sriatun Sriatun Titik Istirokhatun Tutuk Djoko Kusworo Umi Baroroh Lili Utami Wiloso, Edi Iswanto Wishnu Wijaya Yanuar Ariyanto Yoga Prasetya Yusi Luluk Rahmania

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