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All Journal Jurnal Serambi Engineering Maslahah: Jurnal Manajemen dan Ekonomi Syariah
Mustabsyirah Mustabsyirah
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Religion Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Environmental Science

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Peningkatan Kinerja Membran Polietersulfon (PES) dengan Modifikasi Menggunakan Aditif Hidrofilik Mustabsyirah Mustabsyirah; Ardhila Shinta; Mirna Rahmah Lubis; Sofyana Sofyana; Mukramah Mukramah; Mukhriza Mukhriza; Wahyu Rinaldi; Umi Fathanah
Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i1.3828

Abstract

Membrane technology has been the methods in the management of clean water, one of polymer that used as membrane materials is polyethersulfone (PES). However, PES is easy to fouling because it is hydrophobic. Fouling will cause a decrease in membrane performance. In this study, PES membrane was modified using hydrophilic additives, namely an alloy of Mg(OH)2 and chitosan. This research study the effect of additives on the performance and anti-fouling properties of the membrane. The membrane preparation was carried out using polymer blending method. The dope solution was made by mixing 18% PES with additives in the form of an alloy of Mg(OH)2 and chitosan with varying compositions of 1% and 5%, with N-methyl-2-pyrrolidone (NMP) as a solvent, and a mixture of ethanol and water as a non-solvent. The membrane characterization was evaluated by analyzing the functional groups. Membrane performance was carried out by measuring the flux and permeability of pure water, selectivity or rejection, as well as membrane anti-fouling tests. From the results of the study, the largest permeability value in PES/NMP membrane with the addition of 5% additive (membrane N5) was 12.9 L/m2.h.bar, rejection was 33.54% with good anti-fouling properties.
Analisis Perbandingan Kinerja Keuangan Bank Syariah dan Bank Konvensional Mustabsyirah Mustabsyirah; Askari Zakariah; Novita Novita
Maslahah : Jurnal Manajemen dan Ekonomi Syariah Vol. 2 No. 4 (2024): Oktober : Maslahah : Jurnal Manajemen dan Ekonomi Syariah
Publisher : STAI YPIQ BAUBAU, SULAWESI TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59059/maslahah.v2i4.1617

Abstract

This study aims to analyze and compare the financial performance of Islamic banks and conventional banks in Indonesia using library research methods. Data sources come from related literature such as scientific journals, articles, previous research reports, and relevant online sources. Bank financial performance is measured through several ratios including capital ratio (CAR), asset quality (NPL), liquidity (LDR), profitability (ROA and ROE), and efficiency (BOPO) which are calculated based on the bank's financial statements. The results of the analysis show that in general the financial performance of both types of banks is in a healthy condition and meets regulatory standards. However, there are differences in performance in several ratios individually. Conventional banks tend to have better performance in CAR, NPL, BOPO, and ROA ratios, indicating better capital quality, assets, operating costs, and profitability. Meanwhile, Islamic banks show better liquidity performance (LDR) and asset growth. However, the difference in performance is not yet fully statistically significant. In general, the financial performance of conventional banks is superior. However, the performance of Islamic banks also experienced an annual increase. To improve competitiveness, Islamic banks need to continue to make improvements, especially in terms of capital, cost management, credit quality, and increasing fee-based products. Both types of banks have developed and operated harmoniously without causing significant financial turmoil. The results of the study are expected to provide a stronger picture of the comparison of the financial performance of Islamic and conventional banks in Indonesia.
Co-Authors Ardhila Shinta Askari Zakariah Mirna Rahmah Lubis Mukhriza Mukhriza Mukramah Mukramah Novita Novita Sofyana Sofyana Umi Fathanah Wahyu Rinaldi