Article Per Year (5 Year)
p-Index From 2021 - 2026
3.625
P-Index
This Author published in this journals
All Journal Jurnal Teknik Kimia Eksergi: Chemical Engineering Journal Jurnal Sumberdaya Alam dan Lingkungan The Journal of Pure and Applied Chemistry Research Jurnal Fisika Unand JURNAL INTEGRASI PROSES Jurnal Penelitian Pertanian Terapan Briliant: Jurnal Riset dan Konseptual Jurnal Pendidikan Kimia (JPKim) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan G-Tech : Jurnal Teknologi Terapan Nusantara Science and Technology Proceedings AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment)
Dyah Suci Perwitasari
Program Studi Teknik Kimia, Fakultas Teknik, Universitas Pembangunan Nasional ”Veteran” Jawa Timur
Agriculture, Biological Sciences & Forestry 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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

Published : 25 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 25 Documents
Search

 1   2   3 
Sintesis Surfaktan Natrium Lignosulfonat (C20H24Na2O10S2) Berbahan Dasar Serbuk Kayu Mahoni Menggunakan Proses Sulfonasi. Maulida, Nabilah; Aisah; Perwitasari, Dyah Suci; Siswati, Nana Dyah; Sani
Jurnal Fisika Unand Vol 14 No 4 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.4.421-427.2025

Abstract

Furniture production made from mahogany wood produces sawdust that contains biomass such as cellulose, hemicellulose, and lignin. The lignin content in mahogany wood can be used as raw material for making sodium lignosulfonate surfactants. Delignification of lignin is carried out alkaline and continued with lignin isolation by acid precipitation. Pure lignin isolate is further used as a raw material for making sodium lignosulfonate surfactants using the sulfonation process. The sulfonation process is carried out by mixing lignin isolate and sodium bisulfite solution using excess NaHSO3 variation and sulfonation time. Both variables are run by adding sodium hydroxide as a catalyst and the pH condition was maintained at pH 4. The sodium lignosulfonate surfactant solution formed was then characterized using FT-IR spectrophotometer and UV-Vis spectrophotometer. The best condition was obtained at a sulfonation time of 150 minutes and NaHSO3 exceeded 75%, namely with a surfactant concentration of   4100,784 mg/L.
Pengaruh Kristalinitas terhadap Stabilitas Termal Komposit Termoplastis Berpengisi Silika Xerogel Fauziyah, Nur Aini; Perwitasari, Dyah Suci; Wardhani, Primasari Cahya; Fadly, Teuku Andi
Jurnal Fisika Unand Vol 11 No 3 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.11.3.327-333.2022

Abstract

Penetian ini bertujuan untuk mengetahui pengaruh kristalinitas terhadap stabilitas termal komposit termoplastis dengan pengisis silika xerogel. Polimer yang digunakan adalah polietilena glikol (PEG 4000) yang merupakan polimer termoplastis. Silika xerogel diekstraksi melalui proses alkali fusion. Silika xerogel yang didapatkan menunjukkan fasa amorf melalui X-Ray Diffraction (XRD). Silika xerogel ditambahakan ke dalam PEG 4000 dengan komposisi yang bervariasi, yaitu, 0, 5, 10, dan 20%. Penambahan silika xerogel menurunkan tingkat kristalinitas komposit karena PEG murni merupakan material semikristalin. Melalui analisis termal menggunakan Thermogravimetric Analysis (TGA), pengaruh kristalinitas komposit tampak jelas pada daerah sebelum polimer mengalami transisi leleh. Namun, pada daerah dekomposisi (T>400°C), pengaruh kristalinitas pada komposit tidak ada lagi. Hasil ini sangat menarik dikarenakan massa dekomposisi akhir menunjukkan nilai yang sama dengan komposisi silika xerogel yang ditambahkan, misalnya pada penambahan 20%, massa yang tersisa setelah dekomposisi adalah 20,77982 %. Oleh karenanya, analisis kristalinitas sangat mendukung hasil analisis termal dengan TGA pada komposit.
PENGARUH WAKTU FERMENTASI TERHADAP KANDUNGAN NITROGEN, FOSFAT, DAN KALIUM PADA PUPUK ORGANIK DARI LIMBAH BAGLOG JAMUR TIRAM PUTIH DAN GUANO Nufus, Wahyu Qur'ani; Nuraini, Adila Silmi; Suprianti, Lilik; Perwitasari, Dyah Suci; Wahyudi, Bambang
BRILIANT: Jurnal Riset dan Konseptual Vol 10 No 4 (2025): Volume 10 Nomor 4, November 2025
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v10i4.1997

Abstract

This study aims to evaluate the fermentation process of white oyster mushroom baglog waste and bat guano as materials for producing multi-nutrient fertilizer, and to determine the optimal fermentation time that yields the highest levels of nitrogen, phosphate, and potassium by the 2019 Ministry of Agriculture standards. An anaerobic fermentation process was employed using white oyster mushroom baglog waste and bat guano as the primary materials, supplemented with an EM-4 bioactivator to accelerate decomposition. Fermentation was conducted over 20 days and was checked every 4 days. The research results indicate that fermentation time influences the nutrient content of the produced fertilizer. The highest nitrogen content of 2.81% was achieved on the 16th day of fermentation, while the highest phosphate content of 2.28% was recorded on the 8th day of fermentation. The highest potassium content of 3.59% was reached on the 16th day of fermentation. Based on these findings, a fermentation period of 16 days provided optimal results for nitrogen and potassium content, whereas an 8-day fermentation period yielded optimal results for phosphate content.
A Kajian Proses Fermentasi Pada Pembuatan Pupuk Multinutrient Berbahan Limbah Baglog Jamur Tiram Putih Dan Kotoran Kelelawar Nufus, Wahyu Qurani; Nuraini, Adila Silmi; Suprianti, Lilik; Perwitasari, Dyah Suci; Wahyudi, Bambang; Salsabil Husodo, Amani
Jurnal Penelitian Pertanian Terapan Vol 25 No 3 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i3.3560

Abstract

This research aims to examine the fermentation process in mushroom baglog waste and bat guano as ingredients for making multinutrient fertilizer, as well as to determine the fermentation time and composition ratio of the best raw materials with the highest and appropriate nutrient content according to the 2019 Ministry of Agriculture Regulation. The research was carried out in June - August 2023 located at the Graha Riset Universitas Pembangunan Nasional ‘Veteran’, East Java. Making multinutrient fertilizer from white oyster mushroom baglog waste and bat droppings is carried out using an anaerobic fermentation process with specified variables, namely: total mass of material: 10kg, volume of EM-4: 10ml, mass of sugar: 10 grams, and volume of water: 500ml. The research was carried out with variable fermentation times (days): 8, 12, 16, and 20 and composition ratios (baglog waste: bat droppings): (3:1), (2:1), (1:1), (1: 2), and (1:3). The results of the research show that the fermentation process helps decompose organic material as indicated by changes in levels of nitrogen, phosphate, potassium, and C/N. The decomposition of organic material in the fermentation process is indicated by physical changes that occur such as reduced water content due to the increase in temperature of the fertilizer during the fermentation process, changes in pH, as well as the blackish brown color of the fertilizer and a texture that resembles the texture of soil. The best fermentation time and ratio of raw material composition with the highest nutrient content was obtained on the 16th day of fermentation with a ratio of 3:1 with a Nitrogen content of 4.22%, Phosphate 3.14%, Potassium 4.25%, and C-Organic 27. 22%. Overall, the levels of Nitrogen, Phosphate, Potassium and C/N in the multinutrient fertilizer produced with variable time and composition in this study have met the 2019 Minister of Agriculture Regulation.
Recovery of Aluminum and Iron from Coal Fly Ash Waste using Microwave Assisted Extraction (MAE) for Coagulant Satrio, Wahyu Sugeng Bagus; Sari, Vini Fita; Panjaitan, Renova; Susilowati; Perwitasari, Dyah Suci; Redjeki, Sri; Triana, Nurul Widji
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 1 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i1.878

Abstract

Coal fly ash is an industrial waste containing aluminium and iron with potential for reuse as coagulant materials. This study aimed to recover aluminium and iron from coal fly ash using Microwave Assisted Extraction (MAE) with hydrochloric acid, and to evaluate their application in textile wastewater treatment. Variations in HCL concentration (1-5 M) and extraction time (30-50 minutes) were examined to determine optimal conditions. The result showed that the highest recovery was achieved at 5 M HCL and 40 minutes, with aluminium and iron recovery of 48.4% and 78%. The extracted aluminium and iron were successfully applied as coagulants in textile wastewater treatment, resulting in significant reductions in color to 30 Pt-Co, turbidity to 26.9 NTU, and TSS to 46 mg/L, while maintaining a stable pH value at 6. All treated wastewater parameters complied with the applicable discharge standards. These finding demonstrate that MAE is an effective and promising approach for recovering aluminum and iron from coal fly ash and production sustainable coagulant for industrial wastewater treatment. Contribution to Sustainable Development Goals (SDGs):SDG 6: Clean Water and SanitationSDG 9 : Industry, Innovation, and InfrastructureSDG 12 : Responsible Consumption and ProductionSDG 13: Climate ActionSDG 15: Life on Land
Co-Authors Abdul Aziz Abid Alghifari Adinata Shafi Wahyudi Suwarno Aisah Akbar, Dimas Ilham Anwar, Rangga Febry AR Yelvia Sunarti Aurellia, Pingky Marcella Bambang Wahyudi Damayanti, Nabilla Dian Pratiwi Tejo Kusumo Dimas Arnanda Dira Ernawati Dyah Siswanti Fadhila, Dheytra Akhnaz Namira Fadly, Teuku Andi Graciella Yerrica Nathania Ika Nawang Puspitawati Jovita, Stella Ketut Sumada Kindriari Nurma Wahyusi Kindriari Nurma Wahyusi Kusuma Wardhani Mas’udah Luluk Edahwati Mas’udah, Kusuma Wardhani Maulida, Nabilah Muhammad Aji Pangestu Muhammad Aji Pangestu Muhammad Nauli Rizqi Akbar Nabilla Nabilla Nailul Hasan Nana Dyah Siswati, Anwar Zain and Mohammad Nufus, Wahyu Qur'ani Nufus, Wahyu Qurani Nugroho, Sutra Amelia Nur Aini Fauziyah Nuraini, Adila Silmi Nurfauzi, Muchamad Lutfi Pamoedji, Yemima Natalia Eka Kristiyanti Pangestu, Muhammad Aji Panjaitan, Renova Pardi Sampe Tola Pardi Sampe Tola Pracesa, Yahya Ardian Yuma Retno Dewati Reva Edra Nugraha Rizquallah, Izal Daffa Safira, Lutfia Rima Salsabil Husodo, Amani Sani Saputri, Resy Mareta Dwi Saputro, Erwan Adi Sari, Vini Fita Satrio, Wahyu Sugeng Bagus Setiani, Astri Sintha Soraya Santi Sirait, Esterly Septiana Sri Redjeki SRIE MULJANI Suprianti, Lilik Susianto, Mordekhai Yosep Susilowati Susilowati Teuku Andi Fadly Trianna, Nurul Widji Utami, Diana Inas Widyaningrum, Nilam Putri Yahya A. Yahya Ardian Yuma Pracesa