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Contact Name
Iqbal Syaichurrozi
Contact Email
iqbal_syaichurrozi@untirta.ac.id
Phone
+6282310809665
Journal Mail Official
isyaichurrozi@gmail.com
Editorial Address
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sultan Ageng Tirtayasa
Location
Kab. serang,
Banten
INDONESIA
World Chemical Engineering Journal
ISSN : -     EISSN : 24432261     DOI : https://dx.doi.org/10.62870/wcej.v8i1.26617
Core Subject : Engineering,
WCEJ publishes original papers and reviewed papers on the fundamental, theoretical as well as applications of Chemical Engineering. WCEJ is published two times a year. This journal covering some aspects of chemical engineering, which are environmental chemical engineering, chemical reaction engineering, bioprocess-chemical engineering, materials synthesis and processing.
Articles 5 Documents
Search results for , issue "VOLUME 5 NO. 1 JUNE 2021" : 5 Documents clear
TiO2/Chitosan bioplastic as Antibacterial of Stephylococcus aureus for Food Preservation Kustiningsih, Indar; Barleany, Dhena Ria; Abriyani, Devi; Ridwan, Asep; Syairazy, Muhammad; Firdaus, Mochamad Adha
World Chemical Engineering Journal VOLUME 5 NO. 1 JUNE 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i1.12115

Abstract

Nowadays, bioplastic development become hot trends to assess environmental issues. Many materials have been purposed to be the best resources for bioplastic manufacturing. Chitosan is one of the most abundant resources in which could derivates from biomaterial waste called chitin. TiO2 nanoparticles incorporation within biomaterial presumably not only enhance its mechanical properties but also improve biocompatibility of medical characteristic such as bacterial annihilation. From this study, it was shown that small amount of TiO2 nanoparticles within chitosan bioplastic prove improvement of both characteristic. Nevertheless, it was also slightly increasing material durability to degrade.
Potential and Opportunity of Co-Firing Power Plant in Indonesia Through Torrefaction of Empty Fruit Bunch (EFB) - A Review Irawan, Anton
World Chemical Engineering Journal VOLUME 5 NO. 1 JUNE 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i1.12139

Abstract

Electricity was an important requirement for various activities. Currently, the level of electricity consumption in Indonesia was around 1000 kWh/capita/year and is expected to continue to increase towards developed countries with a minimum electricity consumption level of 3000 kWh/capita/year.  Along with the increasing demand for electricity, many new power plants were being built in Indonesia using coal as fuel. Coal was a non-renewable fuel so the CO2 gas produced has an impact on global warming. Co-Firing was a technology for combining fuel of biomass and coal in order to reduce the use of coal. The difference in the quality of biomass and coal was an obstacle to getting a stable combustion performance so it is necessary to improve the quality of biomass. The torrefaction technology can be implemented to improve the quality of biomass in Indonesia so it can be used as fuel for a co-firing power plant. One of the most potential biomass was empty fruit bunch (EFB) from palm oil processing with a potential of around 48 million tons per year or equivalent to 30 GW.  Every Oil palm mills plant that process 25 ton/hour of fresh oil palm fruit bunches can produce EFB around  5.25 ton/hour. With so many palm oil plants, torrefaction technology can be used to store EFB torrefied which can change the properties of biomass from hydrophilic to hydrophobic. The government's role to support the use of biomass, including EFB, is very much needed in increasing cooperation between palm oil mills and power plants.
Tailoring Polymeric Nanoparticles as Nanocarriers via RAFT Polymerization Agustina, Sri
World Chemical Engineering Journal VOLUME 5 NO. 1 JUNE 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i1.11875

Abstract

Polymeric nanoparticles are really promising to be used as drug carriers, due to its ability to increase the aqueous solubility of drugs. Polymeric nanoparticles can regulate the drug activity by passive or active targeting to different tissues. RAFT polymerization has become the most approvable technique to synthesize polymeric nanocarriers for drug delivery. By using different RAFT agents, wide ranges of polymeric nanoparticles with various architecture and water solubility can be obtained under mild conditions.
Synthesis and Characterization of Carboxy Methyl Cellulose-Based Hydrogel Cross-linked with Citric Acid Pitaloka, Alia Badra; Rukmana, Alda Sadilillah; Nur’afiani, Tia Yufika
World Chemical Engineering Journal VOLUME 5 NO. 1 JUNE 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i1.12082

Abstract

Hydrogel is a three-dimensional hydrophilic polymer network which is capable of absorbing large amounts of water, urine, blood, and other biological fluids. The applications of hydrogel are present in various fields such as pharmaceuticals, agriculture, food, and medical fields. Hydrogel is used as a wound dressing, in a drug release system, in diapers, in and menstrual products. The purpose of this research is to produce carboxymethyl cellulose (NaCMC) hydrogels using citric acid as the crosslinking agent, and to determine the optimum conditions to produce hydrogels with a high absorption capacity of liquids using various concentrations of citric acid. The first step of this research is to mix NaCMC and citric acid by stirring it with an agitator at room temperature until the mixture becomes homogeneous. Then, the mixture is casted in a petri dish and dried for 24 hours at 30°C. Then, the crosslinking reaction was carried out at 80°C for a certain time. After that, the gels are put out of the petri dish and tested to determine their values of water absorption capacity (swelling) and gel fractions. Lastly, the hydrogels are characterized using FTIR and SEM. The results showed that the NaCMC hydrogel with anhydrous citric acid with 10%-wt is the best with 3779.16% swelling ratio and gel fraction of 60%.
Kinetic Study of Ammonium Desorption using Natural Zeolites from Cikalong Abdusattar, Thareqa; Hadi, Abdul; Nuryoto, Nuryoto; Kurniawan, Teguh
World Chemical Engineering Journal VOLUME 5 NO. 1 JUNE 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i1.12103

Abstract

Household liquid waste which contains ammonium is one of the major contributors to the wastewater effluent. The aim of investigation is to characterize and determine the adsorption capacity of natural zeolites from Cikalong for ammonium removal.  The effect of cations type, K+, Mg2+ and Ca2+, on ammonium desorptions was studied. Kinetic desorption study was also performed and fitted with various kinetic models. According to X-ray diffraction (XRD) pattern, the Cikalong natural zeolites were mordenite and clinoptilolite dominant type.  The morphology of the mordenite phase was appeared as needles shape. The ratio of Si to Al was 6.86 according to X-ray fluorescence (XRF). The surface area was 187 m2/g which was determined by Brunauer–Emmett–Teller (BET) model. Desorption using K+ solution showed the shortest time and the highest rate for ammonium desorption. The calculation using nonlinear method was carried out to optimize the desorption kinetic parameters. The pseudo 1st order desorption kinetics model showed the smallest error with sum of squared error (SSE) 0.00209.

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