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alwani hamad
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Research In Chemical Engineering
Published by Universitas Muhammadiyah Purwokerto
ISSN : -     EISSN : 28294718     DOI : https://doi.org/10.30595/rice.v1i1
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology
RICE: Research in Chemical Engineering is a peer-reviewed open-access journal dedicated to the dissemination of chemical engineering and chemistry research and finding. This journal covers Research Articles, Review Articles, Short communication, and case studies Focus and Scope RICE: Research in Chemical Engineering is an open-access journal dedicated to the dissemination of chemical engineering and chemistry research and finding. This journal covers including Chemical process Water and waste treatment Material Technology Polymer Technology Membrane Technology Separation Technology Chemical Reaction Engineering and Catalysis Bioprocess Engineering Food Technology Health and Safety Work Applied Chemical Engineering Applied Chemistry Innovation in Chemistry Renewable Energy chemistry Chemical engineering education And another subject that related to chemical engineering
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 1 No. 1 (2022): March" : 5 Documents clear
Effect of Extraction Parameters (Raw Material Particle Size, Volume of Solvent, and Time) on the Process Yield of Rice Bran Oil Abdul Haris Mulyadi; Esti Setianingsih; Yeti Rusmiati Hasanah
Research in Chemical Engineering Vol. 1 No. 1 (2022): March
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.108 KB) | DOI: 10.30595/rice.v1i1.3

Abstract

Rice bran oil is the result of oil extraction from rice bran. Extraction solvent proccessing conducted using ethanol. Rice bran oil can be used as a consuming oil and materials for making cosmetics.This research aimed to find effect of rice bran size, ethanol volume, extraction time and its interaction toward yield of rice bran oil. This research include pure experimental study based on explorative factorial design to find the most influencing factors. The low level of rice bran size is 0.014 mm, beside the high level is 0.085 mm. The volume of ethanol that are used in this research, 250 ml as low level and 400 ml as high level. And then 120 minute as low level of extraction time whereas 240 minute as its high level. Data analysis of yield was done with Minitab software Release 16 with 95% level of confidence.The results show that the size of rice bran was dominant in determining the most influencing factors.
Winsor Phase Diagram of a Colloidal System from the Mixture of Water, Eugenol, and Tween 20 Afwa Hayuningtyas; Pinyapat Jitphongsaikul; Alwani Hamad
Research in Chemical Engineering Vol. 1 No. 1 (2022): March
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.733 KB) | DOI: 10.30595/rice.v1i1.4

Abstract

One factor that influenced colloidal structure is the composition of water, oil, and surfactant in the emulsions. This study aims to build a Winsor phase diagram of a mixture of water, eugenol, and Tween 20 and understand the physical differences in a range of micellar structures from the different compositions of the combinations. There were eleven samples with varying compositions of water, eugenol, and tween 20, and then were mixed and observed in parameters such as phase, appearance, and consistency. The results showed that the emulsion's compositions ingredients affected the character of the final emulsion. There were three categories of emulsions as described in the Winsor phase diagram. Water in oil (w/o) microemulsion was formed in the higher oil composition. In contrast, the lower oil content was macroemulsion/ coarse emulsion. The balance of oil and water composition was categorized as a bicontinuous microemulsion. This diagram will further help in constructing the suitable emulsion category for specific purposes.
Reduction of Chemical Oxygen Demand (COD) and Total Suspended Solids (TSS) from Wastewater of Tapioca Plant Using Aluminium Sulfate and Poly Aluminium Chloride (PAC) as a Coagulant neni damajanti
Research in Chemical Engineering Vol. 1 No. 1 (2022): March
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.717 KB) | DOI: 10.30595/rice.v1i1.5

Abstract

Water is the source of life on the surface of the earth. But often the water used for life contains many organic compounds that are harmful to life. This is due to contamination of water sources by compounds from many places, one of which is waste from the tapioca industry. One method that can be used to reduce water pollution is the coagulation process using certain coagulants. The ability of Poly Aluminium Chloride (PAC) and aluminum sulfate as coagulant is utilized in the processing of tapioca wastewater to reduce COD and TSS levels. This study aims to determine the effect of coagulant dose and flocculation time on decreasing COD and TSS levels in tapioca wastewater from Purbalingga Aci Factory. The method used is coagulation using PAC and aluminum sulfate as a coagulant with a variation of the coagulant dose of 2000; 4000; 6000; 8000 and 10,000 mg/L as well as variations in flocculation time 25; 30; 35; 40 and 45 minutes. The results showed that the coagulant dose and flocculation time had an effect on decreasing COD and TSS in tapioca wastewater. The best use of PAC coagulant at a dose of 6000 mg/L with a flocculation time of 45 minutes, namely the COD value of 375.2 mg/L and TSS 110 mg/L. While the best use of aluminum sulfate coagulant at a dose of 8000 mg/L with a flocculation time of 45 minutes, namely the COD value of 203.2 mg/L and TSS 590 mg/L
Kinetics of Cucurbita Moschata Puree Drying with Maltodextrin as Drying Aid Indah Hartati; Salsa Erna Setiawati; Suwardiyono; Farikha Maharani; Safaah Nur Faizin
Research in Chemical Engineering Vol. 1 No. 1 (2022): March
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.954 KB) | DOI: 10.30595/rice.v1i1.7

Abstract

The objective of this research was to investigate the influence of maltodextrin addition of pumpkin puree drying as well as studied the drying kinetics. Several thin layer drying kinetics model comprised of Page, Lewis, Henderson Pabis, Two Term, Weibull as well as diffusion model were used to studied the behavior of pumpkin drying. The puree drying was conducted by added 15% of maltodextrin on pumpkin puree. The drying temperatures were varied of 60-70 The research result show that temperature influence the pumpkin puree drying in which added with maltodextrin as the drying aid. Pumpkin puree drying with addition of maltodextrin performed at temperature of 70 for 150 minutes is considered as the relatively suitable condition as it gives low moisture ratio of 0.07. The thin layer drying kinetics, Midili, give good fittest to the experimental data followed by Page and Weibull. The effective diffusivity is in range of m/s with the obtained activation energy is 30.36 kJ/mol.
Activation of Carbon Using Microwave-Assisted Hydrochloric Acid for Urea Adsorbtion Regawa Bayu Pamungkas; Kiswatul Kharimah; Endar Puspawiningtiyas
Research in Chemical Engineering Vol. 1 No. 1 (2022): March
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.87 KB) | DOI: 10.30595/rice.v1i1.10

Abstract

The activation of activated carbon using microwave-assisted hydrochloric acid (HCl) has been carried out. This objective of this study was to investigate the effects of the concentration of HCl (1M to 6 M) and time of microwave irradiation (5 to 25 mins) on the iodine number and urea adsorption. The results showed that the concentration of HCl had a significant effect on the quality of the activated carbon. Activation of carbon using 6 mol/L of HCl resulted the iodine adsorption capacity of 1002 mg/g and urea adsorption of 99 mg/g. Microwave irradition time also has a significant effect on the quality of activated carbon. The best microwave irradiation time showed at 25 minutes that resulted in iodine adsorption capacity of 1112 mg/g and urea adsorption capacity of 97 mg/g.

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