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All Journal Jurnal Sains Natural Bubungan Tinggi: Jurnal Pengabdian Masyarakat Journal of Applied Agricultural Science and Technology Open Science and Technology Journal of Fibers and Polymer Composites Indonesian Journal of Chemical Engineering
Farrah Fadhillah Hanum
Universitas Ahmad Dahlan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Journal : Jurnal Sains Natural

 1 
The Utilization and Extraction Method of Nanocellulose: A Review Farrah Fadhillah Hanum; Aster Rahayu; Nafira Alfi Zaini Amrillah; Yoga Nawaki Helmi Mustafa
JURNAL SAINS NATURAL Vol. 13 No. 3 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i3.565

Abstract

Currently, the use of nanocellulose is very broad in various fields, such as pharmaceuticals, cosmetics, and electronics industries. In its development, this nano-sized cellulose is widely used as a reinforcement nanocomposite nanofiller. Nanocellulose has several advantages, including its large surface area, very lightweight, easy to shape, ability to break through the performance limits of conventional materials, and having a high economic value. Nanotechnology develops based on new properties produced by nanomaterials as advanced materials. Therefore, the factor of the extraction process method must be considered to produce nanocellulose that has good quality and large quantity. Nanocellulose extraction can be accomplished in a variety of ways depending on the raw material but is generally done through a combination of chemical, mechanical, and biological treatments.
Study on The Potential Contamination of Heavy Metals: Analysis of Cr and Pb Contents From Power Plants in Indonesia Using the Batch Leaching Method Farrah Fadhillah Hanum; Siti Salamah; Ahmad Rifai Sanuhung; Budi Setya Wardhana
JURNAL SAINS NATURAL Vol. 14 No. 1 (2024): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v14i1.689

Abstract

Coal ash, stemming from the combustion process in power plants, emerges as a potential pollution source due to its metal content. Recognized for housing various metals with environmental contamination potential, this study meticulously delves into the metal analysis of chromium (Cr) and lead (Pb) within four distinct samples of fly ash (FA) and bottom ash (BA) sourced from diverse coal-fired power plants across Indonesia. Employing the batch leaching method, the coal ash samples (FABA) underwent a 6-hour immersion in deionized water, replicating environmental scenarios akin to rainwater interaction with coal ash at disposal sites. XRF analysis scrutinized the chemical composition of each sample, while the leaching filtrate underwent analysis via pH meter and AAS to ascertain pH values and the concentrations of Pb and Cr. Results unveiled a substantial pH variation in the leachate, fluctuating from the initial deionized water pH of 7.00 to a range between 6.86 and 9.18. Notably, subsequent leaching indicated undetectable concentrations of Pb in all samples, with most exhibiting low Cr concentrations post-leaching, except for FA-2, FA-4, and BA-4, which displayed modest Cr concentrations. The scarcity or low concentrations of Pb and Cr post-leaching suggest an efficacious process inhibiting heavy metal release. This study offers profound insights into the chemical intricacies of coal ash, underlining its potential environmental ramifications. The absence of detectable heavy metal concentrations post-leaching underscores a minimal risk of environmental pollution, underscoring the imperative to comprehend the chemical reactions intrinsic to the leaching process for optimal waste management strategies.
Co-Authors Ahmad Rifai Sanuhung Arif Dwi Anto Budi Setya Wardhana Erda Rahmilaila Desfitri Firda Mahira Alfiata Chusna Fitria Nugraheni Sukmawati Iqbal Hapsauqi Joni Aldilla Fajri Lee Wah Lim Maryudi Maryudi Maryudi Nafira Alfi Zaini Amrillah Oktaza Loundi Vidinda Rahayu, Aster Saktiyono Sigit Tri Pamungkas Soedjatmiko Tusrianto Tusrianto Ummi Khasanah Winda Dwi Anggraini Yoga Nawaki Helmi Mustafa Yudhi Pramudya Yudhi Pramudya