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All Journal Al-Buhuts (e-journal) Sultra Civil Engineering Journal (SCiEJ) Indonesian Journal of Engineering (IJE)
Ali, Rahmat
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Mechanical Engineering Transportation

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Pengaruh Ketebalan Media Filter Zeolite, Debit Dan Waktu Tinggal Terhadap Sifat Fisik Air Limbah Cucian Piring Ali, Rahmat; Patoni, Isnan; Maryani, Habibah; Efendi, Ahmad; Gaffar, Muhammad Zaril; Widiyanti, Astrini
Indonesian Journal of Engineering (IJE) Vol 4 No 1 (2023): Edisi September
Publisher : Fakultas Teknik Universitas Nahdlatul Ulama Nusa Tenggara Barat

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Abstract

Abstrak: Limbah Air Cucian Piring merupakan campuran dari berbagai bahan, dan polutan yang berasal dari sisa sisa mencuci alat masak danlain lain. Saat ini hampir semua orang membuang air cucian piring tersebut. Sifat fisik kekeruhan adalah sifat optik yang terjadi akibat hamburan cahaya oleh partikel yang menyebar di dalam air membentuk koloid yaitu suatu cairan yng memiliki partikel yang menyebar. Adapun tujuan dari penelitian ini adalah (1) Untuk mengetahui pengaruh media filter zeolit terhadap penurunan parameter fisik pada air cuci piring, (2) Untuk mengetahui pengaruh waktu tinggal terhadap penurunan parameter fisik limbah air cuci piring dan (3) Untuk mengetahui pengaruh ketebalan media filter terhadap penurunanparamerter fisik limbah air cuci piring. Penelitian eksperimen yaitu untuk mengetahui tingkat penurunan tingat kekeruhan pada air limbah cucian piring dengan menggunakan filtrasi downflow degan komposisi media pasir zeolite dengan variasi ketebalan 2 cm, 4 cm, dan 6 cm. Abstract: Dishwashing water waste is a mixture of various materials, and pollutants that come from the rest of washing cooking utensils and others. Nowadays almost everyone throws away the dishwashing water. The physical property of turbidity is an optical property that occurs as a result of the scattering of light by particles that disperse in water to form a colloid, which is a liquid that has dispersed particles. The aims of this study were (1) to determine the effect of zeolite filter media on decreasing physical parameters in dishwashing water, (2) to determine the effect of residence time on decreasing physical parameters of dishwashing water waste and (3) to determine the effect of filter media thickness on the decrease in the physical parameters of dishwashing water waste. Experimental research is to determine the level of turbidity reduction in dishwashing wastewater using downflow filtration with zeolite sand media composition with thickness variations of 2 cm, 4 cm, and 6 cm.
Faktor-Faktor Yang Mempengaruhi Mutu Pelaksanaan Proyek Peningkatan Jalan Tedubara-Pising Kabupaten Bombana Ali, Rahmat; Lakawa, Irwan; Hawa, Sitti; Sufrianto, Sufrianto
Sultra Civil Engineering Journal (SCiEJ) Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.123 KB) | DOI: 10.54297/sciej.v3i1.242

Abstract

This study aims to analyze the factors that influence the quality of the implementation of improving the Tedubara-Pising street in Bombana Regency. This study uses quantitative data analysis techniques with a sample size of 30 respondents. The results showed that the factors affecting the quality of the Tedubara Pising road improvement in Bombana Regency were financial indicators (X3) 21.97%, followed by Human Resources indicators (X1) 20.14%, location indicators (X5) 19.68 %, material indicator (X2) 19.22%, and the lowest is equipment indicator (X4) 18.99%. Factors related to the quality of road improvement, namely the human resources variable with a value of 0.855 and material with a value of 0.853. This shows a very strong relationship
Determinan Kinerja Keuangan terhadap Maqashid Syariah Development Indeks pada Bank Umum Syariah Wahab, Abdul; Ali, Rahmat
Al-Buhuts Vol. 20 No. 2 (2024): Al-Buhuts
Publisher : Institute Agama Islam Negeri (IAIN) Sultan Amai Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30603/ab.v20i2.4955

Abstract

This study aims to determine the effect of financial performance through profitability ratios proxied by return on assets (ROA), liquidity ratios proxied by financing to deposit (FDR), solvency ratios proxied by capital adequacy ratio (CAR), and efficiency ratios proxied with operational costs on operating income (BOPO) to the level of sharia compliance through the maqashid sharia development index (MSDI) which collects the five objectives of sharia, namely hifdz al-diin (maintaining religion), hifdz al-maal (protecting assets), hifdz al-nafs (maintaining the soul), hifdz al-nasl (maintaining offspring), and hifdz al-aql (maintaining reason) based on the concept of maqashid sharia version of Jasser Auda. This type of research is quantitative research with the research method used being the documentation method. Secondary data sources with purposive sampling technique. The data have been seen from the annual reports of Islamic commercial banks in Indonesia with a time period of 2011 to 2020. The data analysis method used is panel data regression analysis with Chow test, Hausman test, and hypothesis testing (R2 test, t-test, and F test), while the panel data regression estimation model used is the fixed effect model. The data processing in this study uses the E-Views 12 program. The results obtained on the effect on the level of sharia compliance through the maqashid sharia development index (MSDI) include; return on assets (prob. 0.5209), financing to deposit (prob. 0.0036), capital adequacy ratio (prob. 0.7312), and efficiency ratio proxied by operating costs to operating income/BOPO (prob. 0,1137).
Co-Authors Abdul Wahab Ahmad Efendi Gaffar, Muhammad Zaril Hawa, Sitti Lakawa, Irwan Maryani, Habibah Patoni, Isnan Sufrianto, Sufrianto Widiyanti, Astrini