Article Per Year (5 Year)
p-Index From 2019 - 2024
0.23
P-Index
This Author published in this journals
All Journal Reaktor Jurnal Pendidikan Kimia Indonesia
Ngadiran Kartowasono
Universitas Pendidikan Ganesha
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Education Energy Materials Science & Nanotechnology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
DAMPAK RANGKAIAN SEL ELEKTRODA AL-C DALAM ELEKTROKIMIAUNTUK MENDEGRADASI LIMBAH TEKSTIL Ni Made Wiratini; Ngadiran Kartowasono
Reaktor Volume 16 No. 2 Juni 2016
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (348.16 KB) | DOI: 10.14710/reaktor.16.2.65-71

Abstract

Abstract IMPACT OF AL-C ELECTRODE CELL CIRCUIT IN ELECTROCHEMISTRY FOR TEXTILES WASTE DEGRADATION. The purpose of this study was to determine the impact circuit of Al-C electrode cell in electrochemical to degrade textile waste. To achieve these goals, 1) cells that were developed using 3 electrode by varying the electrochemical cell circuit  such as: cell circuit 1(anode: Al-C series, cathode C), cell circuit 2 ( anode: Al-C parallel, cathode C), cell circuit 3(anode: Al-C series, cathode: Al), and cell circuit 4 ( anode: Al-C parallel, cathode: Al); 2) varying the electrode spacing, ie: 3, 6, 9 and 12 cm; and 3) varying the voltage, which is 3, 6, 9, and 13, 5 V. BOD, DO, COD, pH, and absorbance were  measured before and after degradation in every varying cell circuit, electrode spacing, and voltage.  The results showed: black textile waste, odor, COD 2540 mg / L, DO 0 mg / L, BOD 0 mg / L, pH 11, and the absorbance was 0.92. While  best cells circuit is cell circuit 2 (anode: Al-C parallel and c in cathodes), best electrode spacing for processing textile waste is 3 cm, and the best voltage to degrade textile waste is 13.5 V. Key words: degradation, electrochemical, set of cells, textile waste Abstrak Tujuan penelitian ini adalah mengetahui dampak rangkaian sel elektroda Al-C dalam elektrokimia untuk mendegradasi limbah tekstil. Untuk mencapai tujuan tersebut, 1) sel yang dikembangkan menggunakan 3 elektroda dengan memvariasikan rangkaian sel elektrokimia  yaitu: rangkaian 1 (anoda: Al-C seri, katoda C), rangkaian 2(anoda: Al-C paralel, katoda C), rangkaian 3( anoda: Al-C seri, katoda: Al), dan rangkaian 4( anoda: Al-C paralel, katoda: Al); 2) memvariasikan jarak elektroda, yaitu: 3,6, 9, dan 12 cm; dan 3) memvariasikan voltase, yaitu 3, 6, 9, dan 13, 5 V. BOD, DO, COD, pH dan absorbansi diukur sebelum dan sesudah degradasi pada setiap variasi rangkaian sel, jarak, dan voltase. Hasil penelitian menunjukkan: limbah tekstil berwarna hitam, berbau, COD 2540 mg/L, DO 0 mg/L, BOD 0 mg/L, pH 11, dan absorbansi 0,92. Sedangkan rangkaian sel yang paling baik adalah rangkaian sell 2 (anoda: Al-C parallel dan katoda: C), jarak elektroda terbaik untuk pengolahan limbah tekstil adalah 3 cm, dan voltase yang terbaik untuk mendegradasi limbah tekstil 13,5 V. Kata-kata kunci: degradasi, elektrokimia, limbah tekstil,  rangkaian sel
PENGEMBANGAN PERANGKAT PEMBELAJARAN PADA POKOK BAHASAN LARUTAN PENYANGGA DENGAN POLA DEDUKTIF Putu Candra Yuni Artini; Ida Bagus Nyoman Sudria; Ngadiran Kartowasono
Jurnal Pendidikan Kimia Indonesia Vol. 3 No. 2 (2019)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpk.v3i2.21131

Abstract

AbstrakPenelitian dan pengembangan pendidikan (R&D) ini bertujuan (1) mengembangkan dan mendeskripsikan karakteristik perangkat pembelajaran pola deduktif pada pokok bahasan larutan penyangga, (2) mendeskripsikan validitas perangkat pembelajaran yang dikembangkan dari hasil penilaian dan masukan ahli dan praktisi. R&D mengikuti prosedur Borg dan Gall yang dibatasi sampai tahap validasi produk dan uji keterbacaan. Data hasil penelitian ini meliputi hasil analisis kebutuhan, rancangan prototipe perangkat pembelajaran, pembuatan perangkat pembelajaran, validasi produk, dan deskripsi karakteristik perangkat pembelajaran larutan penyangga dengan pola deduktif. Hasil-hasil penelitian dianalisis secara kualitatif. Hasil analisis kebutuhan menunjukkan diperlukannya perangkat pembelajaran dengan pendekatan saintifik pola deduktif. Produk yang dihasilkan berupa prototipe perangkat pembelajaran larutan penyangga dengan pola deduktif meliputi RPP, LKS, teks materi pelajaran, dan instrumen penilaian. Karakteristik RPP, LKS, dan teks materi pelajaran yang dikembangkan adalah menyajikan isi dengan urutan konsep dan tahapan penalaran yang sama (deduktif).  Hasil validasi menunjukkan sebagian besar aspek perangkat pembelajaran mendapat rata-rata penilaian dengan kategori baik dari validator. Hasil uji keterbacaan pada siswa SMA juga menunjukkan tingkat keterbacaan LKS, teks materi, dan tes hasil belajar dalam kategori baik. Dengan demikian, perangkat pembelajaran larutan penyangga dengan pola deduktif yang telah dikembangkan memiliki validitas memadai (baik).Kata-kata kunci: perangkat pembelajaran, pendekatan saintifik, pola deduktif, larutan penyangga AbstractThis education research and development (R&D) was aimed to (1) develop and describe the characteristic of deductive learning tools on the topic of buffer solution, (2) describe the validity of developed learning tools from validators’ assessment results. R&D follow procedures by Borg and Gall that is limited until product validation and readabilty test. Results of the research were need assessment, planning of learning tools prototype, making of learning tools, validation data, and characteristic description of deductive learning tools. The research results were analyzed qualitatively. The need assessment result show that scientific deductive learning tools were needed. The products produced were scientific deductive learning tools which included lesson plan, worksheet, reading text, and assessment instrument. The characteristic of lesson plan, worksheet, and reading text are presenting content with same concept arrangement and reasoning step (deductive). Validation result show that most aspects of developed learning tools got good category judgement from validators. The readability test result also showed that level of students understanding on developed learning tools was in good category. Therefore, deductive learning tools on the topic of buffer solution that had been developed have good validity. Keywords: learning tools, scientific approach, deductive pattern, buffer solution
Co-Authors Dr. Ida Bagus Nyoman Sudria,M.Sc . Ni Made Wiratini Putu Candra Yuni Artini