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All Journal International Journal of Electrical and Computer Engineering BERKALA FISIKA Jurnal Ilmu Dasar Jurnal Materi dan Pembelajaran Fisika Jurnal Sains dan Seni ITS Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Forum Nuklir Jurnal Sains Materi Indonesia IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Teknik Elektro JFA (Jurnal Fisika dan Aplikasinya) JURNAL INTEGRASI International Journal of Social Science and Business IJITEE (International Journal of Information Technology and Electrical Engineering) Indonesian Journal of Physics (IJP) Sewagati
Endarko Endarko
Departemen Fisika, Institut Teknologi Sepuluh Nopember, Surabaya 60111 Indonesia
Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Journal : BERKALA FISIKA

 1 
RANCANG BANGUN SISTEM PENJERNIHAN DAN DEKONTAMINASI AIR SUNGAI BERBASIS BIOSAND FILTER DAN LAMPU ULTRAVIOLET Endarko, Endarko; Putro, Triswantoro; Nuzula, Nike Iza; Armawati, Nuning; Wardana, Adi; Rubiyanto, Agus; Muntini, Melania S
BERKALA FISIKA Vol 16, No 3 (2013): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

Design and fabrication of appropriate technology (biosand filter) that is directly can beapplied for community has successfully been carried out for providing clean water. Thetechnology is adopted from slow sand filter method. Biosand filter that has been fabricated which is technology that is able to filter river water become clean water through filtration process from sand, gravel and an active carbon. For getting drinkable water from river water, biosand filter hasbeen combined with reverse osmosis system and ultraviolet disinfection. System of reverse osmosisand ultraviolet disinfection are used to reduce any bacteria, virus and total dissolved solids (TDS)from treated water which is resulted from biosand filter process. The results from Balai BesarLaboratorium Kesehatan Surabaya (BBLKS) has been declared that treated water from biosandfilter is met the test standards chemical and physical according to the regulation. Meanwhile theprocessed water from process through biosand filter, reverse osmosis and ultraviolet disinfectionis got predicate as drinkable water with met the test standards microbiological, chemical andphysical.Keywords: biosand filter, reverse osmosis, ultraviolet, drinking water
RANCANG BANGUN ALAT UKUR KEKERUHAN AIR BERBASIS MIKROKONTROLER Eka Nuzula, Nike; Endarko, Endarko
BERKALA FISIKA Vol 16, No 4 (2013): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

Turbidity meter based on microcontroller has succesfully been designed and fabricated. The photodiode as sensor and a LED as light source were used for measuring level of waterturbidity whereas microcontroller ATMega 8535 was used for data processing. The turbidity levelof water is measured based on Nephelometer method. The LED and photodiode detector were positioned parallel to each other at a distance of 2 inches. The measurement results indicated that the turbidity meter could be used to measure the turbidity level of water in the range 0 – 200 NTUand the maximum of standard deviation was at 1.33 NTU.Keywords : Turbidity, NTU, Photodiod, LED, Nephelometer
RANCANG BANGUN SENSOR KAPASITIF UNTUK LEVEL AIR Zahrotin, Eli; Endarko, Endarko
BERKALA FISIKA 2014: Berkala Fisika Vol. 17 No. 4 Tahun 2014
Publisher : BERKALA FISIKA

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Abstract

Capacitive sensor for measuring water level has successfully been fabricated and characterized. Capacitive water level sensor has been fabricated using coaxial cylinder with an inner and outer radius at 0,955 and 1,435 cm, respectively. The cylinders have a length of 82 cm. The study was used water and air as dielectrics for filling in the space of two cylinders. The design of sensor based on the principle of cylindrical capacitor with two dielectrics. Measurements of water level repeated three times to ensure an accuracy of data. The ruler was used as calibrator for measurement of water level. The result showed that the capacitive water level sensor can be used to measure water level with the maximum of standar deviation around 1,40, when the system was used to measure increased water levet at 50 cm and standar deviation minimum at 0,01 occured when it was used to measure decreased water level at 0 cm. Range of measurement was 0,16 -78,99 cm with an average error value when measurements of increased and decreased water level was 2.30 and 1.75%, respectively. Keywords: water level, capacitive, coaxial cylinder.
FABRIKASI DAN KARAKTERISASI ELEKTRODA KARBON UNTUK SISTEM DESALINASI LARUTAN KCl DENGAN METODE FREEZING THAWING Sari, Intan Permata; Endarko, Endarko
BERKALA FISIKA 2015: Berkala Fisika Vol. 18 No. 1 Tahun 2015
Publisher : BERKALA FISIKA

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Abstract

Carbon electrode using an active carbon and poly(vinylalcohol) PVA binder  (a   water-soluble  polymer)  by   freezing thawing have successfully been synthesized and characterized. In this research, synthesis of carbon electrode was used freezing thawing method with 4 cycles.  For each one cycle is required 12 hours for freezing and 12 hours for thawing. Specific capacitance of carbon electrode has been observed and measured using cyclic voltammetry and resulted in a value of 9.1 F/g. Meanwhile, SEM image of the cross-section of electrode showed that the electrode has enough pores so that can be used as electrode in a capacitive deionization system. . Desalination experiments were carried out in single-pass mode. KCl solution with an initial conductivity of 180μs/cm is pumped to CDI cell with flow rate of 25 mL/min at voltage source of 2 V. The result showed that the percentage value of the salt-removal was achieved at 64.95%. Keywords: PVA, activated carbon, capacitive deionization, cyclic voltammetry, desalination
PERANCANGAN DAN PEMBUATAN SENSOR TDS PADA PROSES PENGENDAPAN CaCO3 DALAM AIR DENGAN METODE PELUCUTAN ELEKTRON DAN MEDAN MAGNET Martani, Maylita; Endarko, Endarko
BERKALA FISIKA 2014: Berkala Fisika Vol. 17 No. 3 Tahun 2014
Publisher : BERKALA FISIKA

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Abstract

Total Dissolved Solids (TDS) meter has successfully been fabricated based on the principle of conductivity. Control system for monitoring the TDS level in the mini plant have been performed by microcontroller ATMega16 and Personal Computer. The study was to control a precipitation process of CaC03 in the water. Values of TDS from water sample in the mini plant have been monitored and controlled in real-time. All data have been recorded by microcontroller and then, the data will be sent to personal computer via USB interface. Monitoring data will be displayed in a computer screen. The result showed that the system could be used to control level of TDS at 356 - 300 ppm. Keywords : gravity of CaC03, Conduktivity, Control
PEMBUATAN ELEKTRODA DAN PERANCANGAN SISTEM CAPACITIVE DEIONIZATION UNTUK MENGURANGI KADAR GARAM PADA LARUTAN SODIUM CLORIDA (NaCl) Himmaty, Ikfina; Endarko, Endarko
BERKALA FISIKA Vol 16, No 3 (2013): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

Fabrication of electrode and design of capacitive deionization (CDI) have been successfully carried out. Electrodes have been made using an activated carbon from coconut shell, graphite andepoxy with ratio 82:10:8. Mixture of activated carbon and graphite poured on an epoxy solution, andthen it was added with hardener and epoxy resin (1:1). Electrodes with dimension of 8 × 6 × 0.3 cmhave been made with doctor blade method. Specific capacitance of the electrode measured at 7.8 mF/gwith porosity 13.4%. Desalination is done by passing a solution of NaCl 0.5 M with a flow rate 3.5 ml/min in the CDI system. Salt removal in the capacitive deionization can be measured withconductivity parameter of NaCl solution before and after the desalination process. Calculation ofpercentage reduction in NaCl concentration can be determined by the decrease in conductivity of thesolution after desalination. The results showed that the maximum percentage reduction of salt levels inthe NaCl 0.5 M solution for configurations of monopolar and bipolar were achieved at 10.4% and4.3%, respectively, within 5 minutes of testing time.Keywords: capasitive deionisation (CDI), desalination, activated carbon from coconut shell
Co-Authors Achmad Muklason Adawiyah, Siti Rabi’atul Adi Suryani Adi Suryani, Adi Adi Wardana Agus Purwanto Agus Purwanto Agus Rubiyanto Ahmad Muklason Ahmad Ridlo Hanifudin Tahier Aini, Urifa Nabihal Akbar Sujiwa Akhmad Jufriadi Akhmad Muklason Akhmad Muklason Annisa, Hayfa Arfan Eko Fahrudin Ari Bangkit Sanjaya Umbu Aris Widodo Ayu Jati Puspitasari Ayu Jati Puspitasari Badri G.S Berto Mulia Wibawa Berto Mulia Wibowo Bintoro Anang Subagyo Cahyono, Yoyok Christianti, Kurnia Hastu Christiono Utomo Darminto Darminto Darminto Darsono Darsono Diani Ainun Nisa Djuli Pontjowijono Dzulfikar, Ahmad Zaki Eli Zahrotin, Eli Ellys Kumala Pramartaningthyas Fajar, M N Farahdina, Ulya Farid Afandy, Farid Fatimah, Iim Firdhaus, Miftakhul Gani, Muhammad Roslan Abdul Gatut Yudoyono Gontjang Prayitno Hadi Santoso Haekal, Mohammad Hakim, Randy Ivanal Hariyanto, Aditya Prayugo Hariyanto, Aditya Prayugo Hena Dian Ayu Ikfina Himmaty Imam Safawi Ahmad, Imam Safawi intan permata sari Khambali, Khambali Khusnul Ain Kurriawan Budi Pranata Kurriawan Budi Pranata, Kurriawan Budi Maharani, Diska Mahendra Satria Hadiningrat Mahendra, Daffa Malik Anjelh Baqiya Mario, Aloysious Mashuri Mashuri Masyitatus Daris S Maylita Martani Maylita Martani Melania S Muntini Miftahuddin, Dafa Miftakhul Firdhaus Moh. Roni Hidayat Mohammad Haekal Muhammad Noer Fajar Muthmainnah, Melania Suweni Muntini Nainggolan, Andreas Nasori, Nasori Novi D. Ariyanti Nuning Armawati Nur Ichzan Aminuddin Siantang Nurrisma Puspitasari Nurul Amalia T Nurul Amalia Triyuliana Nuzula, Nike Ika Pramartaningthyas, Ellys Kumala Prayitno, Audiena Gelung Putro, Triswantoro R Hidayat Rahmawati, Deti Rahmawati, Deti Rizqa Daniyati S Suasmoro, dkk Santi Puspitasari Setiawan Siti Aisyah Siti Rabiatul Adawiyah Siti Zahrok Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso, Soedarso Suasmoro Suasmoro Sukamto, Heru Sulistyanto, Muhammad Priyono Tri Suminar Pratapa Susilo Indrawati Sutikno Triswantoro Putro Triswantoro Putro Triwikantoro Triwikantoro Ulya Farahdina Vicran Zharvan Vinda Zakiyatuz Zulfa Wardana, Humadillah Kurniadi Wardhana, Adhitya Aris Yugo Triawanto Zainuri (DOI: 10.12962/j24604682.v12i2.1331), Mochamad Zaki Suud Zulfa, Vinda Zakiyatuz