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All Journal Jurnal Ilmiah Widya Jurnal Riset Kimia CHEMPUBLISH JOURNAL
Rahmat Basuki
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Chemical Engineering, Chemistry & Bioengineering Chemistry Other

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PERSEPSI TINGKAT KEPUASAN KELUARGA DI RT 03 RW 07 KELURAHAN MAKASAR - JAKARTA TIMUR TERHADAP PROGRAM KONVERSI MINYAK TANAH KE LIQUEFIED PETROLEUM GAS (LPG) Rosita, Rahmi; Basuki, Rahmat
Jurnal Ilmiah Widya Vol 1 No 2 (2013)
Publisher : Lembaga Layanan Pendidikan Tinggi Wilayah III Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (158.61 KB)

Abstract

The National program of converting Kerosene to Liquefied Petroleum Gas (LPG) aims to ensure the provision and procurement of fuel in the country and to reduce fuel subsidies in order to ease the financial burden of the Indonesian country. The purpose of this study is: (1) to analyze the characteristic of the family of the conversion program from kerosene to LPG (2) to determine their interests, satisfaction and perception towards the conversion program. The survey was conducted at RT 03/ RW 07 Kelurahan Makasar, Jakarta Timur. The research used descriptive statistical and library research methods. The sample of 30 respondents taken from 43 families as the population which chosen by probability sampling random. The data analyzed used Importance Performance Analysis (IPA) and Customer Satisfaction Index (CSI). The results obtained are: (1) the families characteristic consists of: (a) dominated by families of ' 3d 4 member (b) aged of husbands/wives of 30 years old., (c) education; hubands/wives: senior high school, (d) occupation; husbands as businessman, wives as housewives, (e) point of sales: small grocery store than agent. (2) The matters of public concern in the use of LPG, including the price factor, resistance factor tube (security) and the availability of LPG 3 kg. (3) The majority of the families are satisfied with the program (3) the perceptions: (a) 85, 21% stated that the use of LPG is more beneficial, and economical cleaner and faster in cooking than using kerosene. (b) There is no force and they accepted the LPG as the kerosene substitute.
Black Water Purification by Activated Carbon from Ilalang Weeds (Imperata cylindrica) Adsorbent in Peatland Rural Area Ngatijo, Ngatijo; Heriyanti, Heriyanti; Putri, Winda Arinda; Irunsah, Aslan; Ishartono, Bayu; Basuki, Rahmat
Jurnal Riset Kimia Vol 13, No 1 (2022): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v13i1.449

Abstract

The black water containing humic acid, HA in peat land rural area is a serious issue. This study aims to synthesis of activated carbon, AC from Ilalang Weeds, IW (Imperata cylindrica) as low-cost adsorbent for HA. The success AC synthesis by H3PO4 activator from IW was evidently characterized by Fourier Transform Infra-Red, FTIR and Scanning Electron Microscopy, SEM. The effects of pH solution, initial HA concentration, and contact time were systematically studied to investigate the performance of Activated Carbon from Ilalang Weeds, ACIW. The results showed the increasing of Langmuir monolayer capacity of HA adsorption on carbon from IW before (49.75 mg g-1) and after (56.82 mg g-1) activation process at the pH optimum 6.0. The equilibrium adsorption data fitted with the isotherm model was shifted from multilayer Freundlich model (CIW) into monolayer Langmuir model as the consequences of increasing pore diameter size and active sites intensity. Calculation of adsorption energy by Dubinin-Radushkevich (EDR) model, 0.50 and 2.24 kJ mol-1 for CIW and ACIW, respectively, showed the increasing of physical affinity of HA with the active sites of adsorbent. Adsorption kinetics showed that the adsorption behavior followed the Ho pseudo-second-order kinetic model. The experimental results of this work demonstrate that the ACIW can be used as a promising low-cost adsorbent for HA removal for clean water production in peat land rural area. 
Nanofikasi Fraksi Tanah Gambut untuk Modifikator Nanomagnetit/AH-Kitosan sebagai Kandidat Penanggulangan Pencemaran Zat Warna Ngatijo Ngatijo; Restina Bemis; Mahya Ihsan; Nurul Gusmaini; Salim Hidayat; Rahmat Basuki
CHEMPUBLISH JOURNAL Vol. 5 No. 2 (2020): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v5i2.11105

Abstract

The nanomagnetite/HA-Chitosan adsorbent has been successfully synthesized by the co-precipitation method. HA was synthesized from the peat soils of Geragai village, Tanjung Jabung Timur, Jambi province and chitosan isolated from marine animal shell waste around the city of Jambi. The results of FT-IR analysis showed that nanomagnetite/AH-chitosan has a spectra which was combination of the characteristic spectra of magnetite, HA and chitosan. Morphological analysis using SEM showed that nanomagnetite/AH-chitosan was in the form of fractal agglomerates. TEM image of magnetite/AH-chitosan showed that magnetite/AH-chitosan has nano scale magnetite core particles with a size between 4-22 nm. Crystallinity analysis showed that magnetite/AH-chitosan has 2θ characteristics of magnetite i.e., 30.1°, 35.4°, 43.1°, 57.0°, 62.68° and 74.5°. The magnetic saturation strength (Ms) decreased from 80.23 (magnetite) to 30.63 (magnetite/AH-chitosan) due to the coating of AH-chitosan on magnetite which was still effectively attracted by the external magnet with 96% effectiveness of adsorption of 25 mL Methylene Blue 10 mg/L.
Co-Authors Bayu Ishartono Heriyanti Heriyanti, Heriyanti Irunsah, Aslan Mahya Ihsan Ngatijo Ngatijo Ngatijo Ngatijo Nurul Gusmaini Putri, Winda Arinda Rahmi Rosita Restina Bemis Salim Hidayat