{"title":"Penyisihan Logam Berat Pb Pada Tanah Dengan Penambahan Biochar Sekam Padi","authors":"Aryo Sasmita, Shinta ' Elystia","doi":"10.26578/jrti.v15i2.6942","DOIUrl":"https://doi.org/10.26578/jrti.v15i2.6942","url":null,"abstract":"","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124954002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Studi Penurunan Kekeruhan dengan Aplikasi Ekstrak Tapioka sebagai Koagulan Alam pada Pengolahan Air Bersih","authors":"Eka Prihatinningtyasa, T. Jasalesmana","doi":"10.26578/jrti.v15i2.6697","DOIUrl":"https://doi.org/10.26578/jrti.v15i2.6697","url":null,"abstract":"","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125827406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Business Model Canvas (BMC) Sebagai Strategi Penguatan Kompetensi Industri dan Usaha Amplang Pasca Pandemi","authors":"D. Kuncoro, W. Saptaningtyas","doi":"10.26578/jrti.v15i2.6920","DOIUrl":"https://doi.org/10.26578/jrti.v15i2.6920","url":null,"abstract":"","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116262722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. S. Siregar, Reni Astuti, M. Fuadi, Desi Ardilla, Masyura - M.D, Asma Nasution, Eddiyanto Eddiyanto
{"title":"Pencangkokan Anhidrida Maleat Pada Karet Alam Siklis : Penambahan Divinil Benzen untuk Meningkatkan Derajat Pencangkokan","authors":"M. S. Siregar, Reni Astuti, M. Fuadi, Desi Ardilla, Masyura - M.D, Asma Nasution, Eddiyanto Eddiyanto","doi":"10.26578/jrti.v15i2.6973","DOIUrl":"https://doi.org/10.26578/jrti.v15i2.6973","url":null,"abstract":"","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132088858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Prasetyo, Wiratni Budhijanto, Rifki Wahyu Kurnianto, Satriyo Krido Wahono
{"title":"Peruraian Anaerobik Termofilik Limbah Vinasse : Pengaruh Zeolit Alam Teraktivasi Asam dan Basa Terhadap Performa Proses","authors":"D. Prasetyo, Wiratni Budhijanto, Rifki Wahyu Kurnianto, Satriyo Krido Wahono","doi":"10.26578/jrti.v15i2.7005","DOIUrl":"https://doi.org/10.26578/jrti.v15i2.7005","url":null,"abstract":"","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121748978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dicky Rahmadi, S. Mulyati, Cut Meurah Rosnelly, Syawaliah Syawaliah, A. Ambarita, Y. Syamsuddin
{"title":"Modifikasi Membran Ultrafiltrasi PVDF dengan Penambahan Aditif DOPA/PEI untuk Aplikasi Penyisihan Asam Humus dalam Air","authors":"Dicky Rahmadi, S. Mulyati, Cut Meurah Rosnelly, Syawaliah Syawaliah, A. Ambarita, Y. Syamsuddin","doi":"10.26578/jrti.v15i2.6678","DOIUrl":"https://doi.org/10.26578/jrti.v15i2.6678","url":null,"abstract":"","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123836045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adhi Setiawan, Aisyah Nur Rahmadania, N. Mayangsari
{"title":"Adsorpsi Cu(II) Menggunakan Zeolit Sintesis Kombinasi Abu Terbang dan Abu Dasar dengan Variasi Waktu Aging","authors":"Adhi Setiawan, Aisyah Nur Rahmadania, N. Mayangsari","doi":"10.26578/JRTI.V15I1.6889","DOIUrl":"https://doi.org/10.26578/JRTI.V15I1.6889","url":null,"abstract":"Kandungan Si dan Al pada abu terbang dan abu dasar dapat dimanfaatkan sebagai adsorben zeolit yang dapat menyerap Cu(II) di dalam air limbah. Penelitian ini bertujuan untuk mensintesis dan karakterisasi zeolite dari campuran abu terbang dan abu dasar serta mengaplikasikannya sebagai adsorben logam Cu(II). Sintesis zeolit menggunakan proses hidrotermal di dalam larutan NaOH pada suhu 100 o C selama 5 jam. Waktu aging dilakukan selama 8 jam dan 24 jam. Proses adsorpsi Cu(II) dilakukan secara batch pada suhu 35 o C dan 45 o C dengan dosis adsorben 10 g/L. Konsentrasi Cu(II) yang digunakan pada adsorbsi sebesar 12,5; 25; dan 50 mg/L. Karakteristik zeolit dianalisis menggunakan SEM-EDX, XRD, FTIR, dan analisis konsentrasi Cu(II) menggunakan atomic absorption spectrophotometry (AAS). Hasil SEM menunjukkan bahwa partikel zeolit berbentuk bola teraglomerasi serta permukaan yang kasar. Peningkatan waktu aging menyebabkan peningkatan ukuran partikel dan kristalinitas zeolit. Waktu aging selama 24 jam menghasilkan partikel dengan ukuran 3,441 µm dan kristalinitas sebesar 95,98%. Semua sampel zeolite mampu menghasilkan efisiensi penyisihan Cu(II) di atas 99%. Nilai maksimum efisiensi penyisihan Cu(II) diperoleh pada kondisi konsentrasi awal 12,5 mg/L, waktu aging 8 jam, serta suhu 35 o C yaitu sebesar 99,95%. Adsorpsi isotermal Cu(II) oleh zeolit sesuai dengan Model Freundlich yang dikontrol melalui pembentukan multilayer pada permukaan adsorben. Keywords : abu dasar, abu terbang, adsorpsi, hidrotermal, waktu aging, zeolit.","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127884680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hendra Riansyah, Dessy Maulidya Maharani, Agung Nugroho
{"title":"Intensitas dan Stabilitas Warna Ekstrak Daun Pandan, Suji, Katuk, dan Kelor Sebagai Sumber Pewarna Hijau Alami","authors":"Hendra Riansyah, Dessy Maulidya Maharani, Agung Nugroho","doi":"10.26578/JRTI.V15I1.6549","DOIUrl":"https://doi.org/10.26578/JRTI.V15I1.6549","url":null,"abstract":"Pewarna alami memiliki kelemahan berupa intensitas dan stabilitasnya yang rendah. Klorofil sebagai sumber pewarna hijau alami memiliki kelebihan yang tidak dimiliki pewarna sintetis. Selain lebih aman, klorofil dapat berfungsi sebagai antioksidan yang dapat memberikan beberapa aktivitas farmakologi. Identifikasi dan kuantifikasi klorofil pada berbagai tumbuhan hijau telah banyak dilaporkan, namun masih terbatas yang memberikan rekomendasi mengenai jenis bahan apa yang lebih potensial untuk dimanfaatkan sebagai sumber klorofil. Penelitian ini bertujuan membandingkan kekuatan (intensitas) warna ekstrak dan stabilitasnya dari empat jenis tumbuhan yang potensial dan umum digunakan secara tradisional, yaitu daun pandan (Pandanus amaryllifolius), daun suji (Pleomele angustifolia), daun katuk (Sauropus androgynus), dan daun kelor (Moringa oleifera). Intensitas dan stabilitas larutan ekstrak warna tumbuhan yang dipilih dinilai secara objektif dengan mengukur nilai absorbansinya pada panjang gelombang 500 nm menggunakan UV-Vis Spektrofotometer dan komposisi RGB melalui penilaian citra digital, serta secara subjektif melalui pengujian hedonik. Stabilitas warna diuji selama tujuh hari penyimpanan dengan perlakuan tambahan berupa penambahan dan tanpa penambahan NaHCO3. Dari aspek intensitas warna, ekstrak suji menampilkan kriteria yang lebih baik dengan menghasilkan nilai absorbansi, komposisi RGB, dan kesukaan yang lebih tinggi dibanding ekstrak warna lainnya. Penambahan NaHCO3 pada larutan ekstrak suji dapat meningkatkan intensitas dan juga stabilitas warnanya. Keunggulan ekstrak pandan terdapat pada aspek rasa dan aroma, di mana tidak dimiliki oleh ekstrak suji. Kelemahan ekstrak pandan adalah stabilitasnya yang rendah selama penyimpanan, meskipun telah ditambahkan dengan basa NaHCO3.","PeriodicalId":117182,"journal":{"name":"Jurnal Riset Teknologi Industri","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123653596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}