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p-Index From 2019 - 2024
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This Author published in this journals
All Journal International Journal of Public Health Science (IJPHS) Journal of Sustainable Infrastructure
Nastiti, Almira Davina
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Health Professions

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The Effect of Filter Media Grain Size on the Headloss and Backwash Duration at PT PAM Lyonnaise Jaya (PALYJA) Putri, Septiani Eka; Zahra, Nurulbaiti Listyendah; Sarwono, Ariyanti; Nastiti, Almira Davina; Sekarsari, Dinda
Journal of Sustainable Infrastructure Vol. 3 No. 1 (2024): Mitigation Strategies for Sustainable Infrastructure: Balancing Development and
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v3i1.28

Abstract

This research is about the effect of filter media grain size on the headloss and backwash duration of rapid sand filter unit. The purpose of this study is to analyze the effect of filter media grain size on headloss and backwash duration. In this research, filter media with 3 different sizes are used, which are assessed based on the effective size (ES) and uniformity coefficient (UC) parameters. Data collection consists of sieve analysis of media filter, headloss test, turbidity test, and TSS test. The Headloss test is carried out on a laboratory scale using a prototype filter unit. Sieve analysis of media filter, turbidity test, and TSS test of backwash water are carried out at IPA 2 PT PAM Lyonnaise Jaya. The results show that each value of headloss for large filter media (ES = 1.29 mm; UC = 1.40), small filter media (ES = 0.87 mm; UC = 1.51), and mixed filter media (ES = 0.89 mm; UC = 1.49) are 4 cm, 5.5 cm, and 4.6 cm. The optimum backwash duration on large filter media, small filter media, and mixed filter media are 15 minutes, 13 minutes, and 14 minutes.
Socio-demographic segmentation in sanitation based engagement in Koja, Jakarta Aji, Angga Dheta Shirajjudin; Septiariva, Iva Yenis; Nastiti, Almira Davina; Sofiyah, Evi Siti; Ridhosari, Betanti; Suryawan, I Wayan Koko; Suhardono, Sapta; Prayogo, Wisnu
International Journal of Public Health Science (IJPHS) Vol 14, No 1: March 2025
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijphs.v14i1.24581

Abstract

Urban public health initiatives rely heavily on community participation to ensure success and sustainability. This study explores the socio-demographic determinants of community engagement in the public health initiatives of Koja Subdistrict, Jakarta. A cross-sectional survey was conducted, employing both qualitative interviews and quantitative questionnaires to gather data from a representative sample. Binary logistic regression was used to analyze the data, focusing on aesthetics, public health sanitation performance, community socialization, gender, age, and education. The findings reveal that aesthetic considerations, perceived sanitation performance, socialization practices, and demographic factors significantly influence the willingness to participate. Aesthetics and community socialization positively impacted engagement, while perceived high sanitation performance paradoxically discouraged individual participation. Furthermore, demographic factors such as gender, age, and education level showed varying degrees of influence, with gender disparities and higher education correlating with increased engagement. This study contributes to understanding public health participation dynamics and offers insight into designing tailored community engagement strategies. Policymakers and health officials can leverage these insights to effectively enhance community involvement and address public health challenges.
Co-Authors Aji, Angga Dheta Shirajjudin Nurulbaiti Listyendah Zahra, Nurulbaiti Listyendah Prayogo, Wisnu Putri, Septiani Eka Ridhosari, Betanti Sarwono, Ariyanti Sekarsari, Dinda Septiariva, Iva Yenis Sofiyah, Evi Siti Suhardono, Sapta Suryawan, I Wayan Koko