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All Journal World Chemical Engineering Journal EduChemia: Jurnal Kimia dan Pendidikan Wikrama Parahita : Jurnal Pengabdian Masyarakat Jurnal Pengabdian Dinamika
Wardalia Wardalia, Wardalia
Jurusan Teknk Kimia, Fakultas Teknik, Universitas Sultan Ageng Tirtayasa
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences

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Journal : World Chemical Engineering Journal

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The Effect of HCl Concentration on The Activation of Bentonite as A Catalyst in The Pyrolysis Process of Polypropylene (PP) Plastic Waste at The Integrated Waste Management Facility of Asari Cilegon Suhendi, Endang; Heriyanto, Heri; Anam, Muhammad Khoirul; Aulia, Anida; Putri, Rizki Amalia; Wardalia, Wardalia
World Chemical Engineering Journal VOLUME 8 NO.1 JUNE 2024
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v8i1.26466

Abstract

Pyrolysis is the process of heating a substance without the presence of oxygen, causing the decomposition of plastic materials (polymers). Pyrolysis is used as an alternative to reduce the amount of plastic which is a source of environmental problems. This research aimed to determine the effect of HCl concentration on bentonite catalyst activation on the liquid product yield of pyrolysis of polypropylene (PP) plastic waste and to determine the characteristics of the liquid pyrolysis products. This research was carried out in several stages including raw material preparation, catalyst activation, and pyrolysis process. In bentonite catalyst activation, the HCl concentration was varied to 0.25, 0.50, and 0.75 M. The results showed that the highest liquid product yield was obtained at a concentration of 0.50 M, namely 76% with a product density range of 0.7452-0.762 g/ml. The heating value of the liquid product at 0.50 M HCl activated bentonite was 6806.48 cal/g. Through GC-MS analysis, the liquid product contained 2,4-Dimethyl-1-heptene with an area of 8.21% and a retention time of 3.626. Based on XRD analysis, the bentonite contained minerals of montmorillonite, kaolinite, and quartz.
Application of Edible Film based on Chitosan-PLA in the Prolongation of the Shelf Life of Longan Fruit Kanani, Nufus; Rahmayetty, Rahmayetty; Wardhono, Endarto Yudho; Wardalia, Wardalia
World Chemical Engineering Journal VOLUME 4 NO. 2 DECEMBER 2020
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v4i2.10596

Abstract

Longan fruit (Dimacorpus longan lour) is one of non-climacteric tropical fruit. Longan fruit has a short shelf life under room temperature. Pericarp browning and microbial decay are the majir factors reducing the longan shelf life, it can cause the limitation of consuming the longan fruits. An alternative means without toxic and pollution effect for preventing and controlling the the post harvesting fruits are needed such as blend film and edible coating application. Application of edible coating is promising to improve the quality and extend live of post harvested vegetable and fruits. Therefore the aim of this study is to define the potential of Chitosan-PLA (Ch-PLA) composites to extend the shelf life of longan fruits. In this experiment, we investigated those with the effect of PLA content to the chitosan film on water vapour permeability, pH condition, film thickness and weight loss of longan fruits.
Co-Authors Alawiyah, Rizqi Anam, Muhammad Khoirul Apriantika, Anellysha Putri Aulia, Anida Daimah, Radhini Salma Heriyanto, Heri Indar Kustiningsih Kanani, Nufus Maemunah, Shiva Muhammad Triyogo Adiwibowo Nay Lufar Nufus Kanani, Nufus Nugroho, Adhitiya Aprianto Putri, Rizki Amalia Rahmayetty Rahmayetty Sari, Listiyani Nurwidya Suhendi, Endang Wardhono, Endarto Y Wardhono, Endarto Yudho Widya Ernayati Kosimaningrum Y Wardhono, Endarto Yulvianthy, Meri