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All Journal Media Ilmiah Teknik Lingkungan JERNIH: Journal of Environmental Engineering and Hygiene
Aselna, Intan Har
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Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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Pengaruh Waktu Aerasi dan Sedimentasi Terhadap Penurunan Kadar Besi (Fe) Pada Air Sumur: The Effect of Aeration and Sedimentation Time on the Decrease in Iron (Fe) Levels in Well Water Rosidah, Choirur; Pramitasari, Noven; Kartini, Audiananti Meganandi; Kumalasari, Tika; Aselna, Intan Har
JERNIH : Journal of Environmental Engineering and Hygiene Vol. 3 No. 1 (2025): JERNIH: Journal of Environmental Engineering and Hygiene
Publisher : Universitas PGRI Argopuro Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31537/jernih.v3i1.2344

Abstract

Air sumur di salah satu perumahan di Kabupaten Lumajang memiliki kadungan besi (Fe) sebesar 3,7 mg/L. Kandungan besi pada air sumur tersebut telah melebihi dari syarat yang telah ditetapkan. Berdasarkan Peraturan Menteri Kesehatan Republik Indonesia Nomor 492/MENKES/PER/IV/2010 tentang persyaratan kualitas air minum kandungan besi (Fe) pada air yaitu 0,3 mg/L. Kandungan besi dalam air dapat diturunkan dengan menggunakan metode aerasi, sedimentasi dan filtrasi. Proses aerasi pada penelitian ini menggunakan diffuser Aerator untuk melarutkan oksigen ke dalam air sehingga meningkatkan kadar oksigen terlarut dalam air. Proses sedimentasi menggunakan bak pengendap untuk untuk mengendapkan padatan terlarut dan tersuspensi sedangkan proses filtrasi dengan menggunakan media zeolit dan pasir silika serta kerikil sebagai media penyangga. Total waktu yang digunakan untuk proses aerasi dan sedimentasi yaitu 35 menit. Nilai efisiensi penyisihan besi yang tertinggi yaitu pada reaktor A1B4 dengan waktu aerasi selama 10 menit dan waktu sedimentsi selama 25 menit. Nilai efisiensi penyisihan besi yang didapatkan ada sebesar 70,74 – 86,27% Berdasarkan hasil analisis statistik waktu aerasi dan waktu sedimentasi memiliki pengaruh yang signifikan terhadap penurunan kadar besi (Fe) pada air sumur Kata Kunci: Aerasi; Air Sumur; Besi; Filtrasi; Sedimentasi.
Analysis of Consumers Participation in Packaging Waste Management in Yogyakarta City: Analisis Partisipasi Konsumen dalam Pengelolaan Sampah Kemasan Di Kota Yogyakarta Aselna, Intan Har; Chaerul, Mochammad
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v10i2.10260

Abstract

E-commerce activities have shown significant growth, especially during the Coronavirus Disease (Covid-19) pandemic, driving an increase in packaging waste generated by consumers from their online purchases. Similar to other cities, Yogyakarta City has waste management facilities at source, but the existence of this infrastructure has not significant reduced the amount of waste transported to the Piyungan landfill. This study aimed to predict consumer behavior and measure their willingness to participate in packaging waste management through the Theory of Planned Behaviour (TPB) model. Data was collected through structured questionnaires distributed to 111 respondents in 14 subdistricts in Yogyakarta city which were then analyzed using Partial Least Square-Structural Equation Modeling (PLS-SEM). The results showed that knowledge, perceived behavioral control, and convenience had a significant effect, while subjective norms and attitudes had a insignificant effect on the willingness of consumers participation in packaging waste management.
Co-Authors Audiananti Meganandi Kartini Kumalasari, Tika Mochammad Chaerul, Mochammad Rosidah, Choirur Sugeng, Santoso