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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Studia Economica: Jurnal Ekonomi Islam
Mila Safitri
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Religion Economics, Econometrics & Finance Engineering Social Sciences

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Pengaruh Massa Dan Waktu Kontak Adsorben Dari Tanah Gambut Dalam Penyisihan Logam Besi (Fe) , Logam Mangan (Mn) Dan Warna Pada Air Gambut Mila Safitri; Edward HS; Syarfi Daud
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Peat soil as an adsorbent in peat water treatment is located in Sabak Permai Village, Sabak Auh District, Siak Regency. This study aims to study the effect of mass variation and contact time of peat soil adsorbent on the efficiency of Fe, Mn and color removal in peat water. The experiment was carried out by adsorption at a speed of 125 rpm by varying the mass (5, 10, 15, 20 g/L) and contact time (120, 150, 180, 210 minutes). While the fixed variables are 10% Phosphoric Acid Activator, 3000C Heating and 80 mesh particle size. The concentration of iron metal removal (Fe) was 0.449 mg/L with a percentage of 88.66%, Manganese (Mn) was 0.081 mg/L with a percentage of 90.75% and color removal in peat water was 380.5 PtCo. with a percentage of 71.5%. The adsorption capacity of peat water on Fe metal is 3.618 mg/gr, Manganese Mn is 0.796 mg/gr and color 1.259 mg/g organic matter is 294.2 mg/gr and iron (Fe) is 3.91 mg/gr at a mass of 20 grams and a time of 210 minutes.  Keywords: Peat Soil, Peat Water, Adsorption, Removal Efficiency, Adsorption Capacity
Pengaruh Tren, Gaya Hidup Berbelanja dan Harga Diskon terhadap Pembelian Impulsif Fashion Halal Mila Safitri; Ida Farida; Rahma Hidayati Darwis
Studia Economica : Jurnal Ekonomi Islam STUDIA ECONOMICA: Jurnal Ekonomi Islam | Vol. 11 | No. 1 | 2025
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/se.v0i1.23589

Abstract

This study aims to help understand how trends, shopping lifestyles and discount prices can influence impulse buying decisions of halal fashion users in the context of young Muslim consumers who are increasingly exposed to global trends and easy access to information, especially among FEBI IAIN Bone students who have not been widely discussed in previous studies. This research is a descriptive study using quantitative methods. Purposive Sampling is the sampling technique used, for the number of samples in this study took as many as 100 respondents who were used as research samples based on the results of the calculation of the slovin formula used. Structural Equation Modeling (SEM) is a component-based data analysis technique that utilizes Partial Least Squares (PLS) analysis tools. The results of this study prove that trends have a significant effect on impulse purchases of halal fashion as indicated by a T-Statistic of 2.987 > 1.96 and a p-value of 0.003 < 0.05. Shopping lifestyle has a significant effect on impulse purchases of halal fashion, as indicated by a T-Statistic of 2.242 > 1.96 and a p-value of 0.025, Discount prices have a significant effect on impulse purchases of halal fashion, as indicated by a T-Statistic of 1.972 > 1.96 and a p-value of 0.049 < 0.05
Co-Authors Edward HS Ida Farida Rahma Hidayati Darwis Syarfi Daud