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All Journal Bumi Lestari Jurnal Pendidikan Biologi Undiksha Jurnal Sains dan Teknologi Jurnal Ilmiah Vastuwidya Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat International Journal of Applied Science and Sustainable Development (IJASSD) Jurnal Ecocentrism Jurnal Abdi Dharma Masyarakat LOKATARA SARASWATI Jurnal Ilmiah Teknik Unmas (Jitumas) Denpasar
Shinta Enggar Maharani
Universitas Mahasaraswati Denpasar
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation

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Community Participation in Household Waste Management as a Medium for Environmental Education: A Descriptive Qualitative Study in Badung Regency Shinta Enggar Maharani; I Nyoman Arya Thanaya; Made Sudiana Mahendra; I Gusti Bagus Sila Dharma
Jurnal Pendidikan Biologi Undiksha Vol. 12 No. 2 (2025)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpb.v12i2.103670

Abstract

Household waste management is not only a technical matter but also a reflection of community awareness and environmental values. This study aims to explore the forms, motivations, and educational potential of community participation in household waste management in Badung Regency, Bali. Using a descriptive qualitative design, data were obtained through in-depth interviews, participatory observation, and documentation of local waste management initiatives such as waste banks and neighbourhoods composting groups. The results reveal that community involvement emerges from collective environmental concern, local cultural norms, and the desire to maintain cleanliness and harmony (Tri Hita Karana principles). Participation in waste segregation, recycling, and composting serves as an informal yet powerful medium for environmental education, where residents, including students, learn ecological concepts through practical experience. Community-based programs have strengthened eco-literacy, social responsibility, and sustainable behaviours among participants. The study concludes that integrating education with community-driven waste management can create transformative learning that bridges everyday practice with environmental awareness. This integrative model offers insights for educators and policymakers who will implement continuing education through local participation
ANALISIS KARAKTERISTIK FILTRASI DENGAN MEDIA BIOCHAR UNTUK PENURUNAN KONSENTRASI AMMONIUM DAN FOSFAT Filemon Bram Gunas Junior; Shinta Enggar Maharani; I Made Wahyu Wijaya
Jurnal Ecocentrism Vol. 6 No. 1 (2026): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jeco.v6i1.13807

Abstract

This study is motivated by the high concentration of nutrients, particularly ammonium (NH₄⁺) and phosphate (PO₄³⁻), in domestic wastewater, which can lead to eutrophication if not properly treated. The objective of this research is to analyze the hydraulic characteristics and filtration performance of biochar media in a two-compartment filtration system for domestic wastewater treatment. The study was conducted experimentally using a laboratory-scale filtration unit with effective dimensions of 200 mm × 200 mm and a media height of 700 mm. The system was operated under continuous flow conditions at a discharge rate of 50 L/h for 3 hours per day. The analyzed parameters included filtration effectiveness duration, bed volume (BV), head loss, permeability coefficient (K), and hydraulic retention time (HRT), as well as the removal efficiency of ammonium and phosphate, measured using spectrophotometric methods. The results showed that the filtration effectiveness duration reached 28.17 hours, with a total treated water volume of 1.4083 m³, equivalent to 66.45 BV. The head loss value of 0.50 m remained relatively stable throughout the operation, indicating no significant clogging of the media. The permeability coefficient of 3.12 × 10⁻⁴ m/s indicates moderate to high permeability, with an HRT ranging from 21 to 25 minutes. The biochar media achieved ammonium removal efficiencies of 65–75% and significantly reduced phosphate concentrations, with the highest efficiency observed at the initial stage before declining due to media saturation.
EFEKTIVITAS FILTER BIOCHAR PADA PENURUNAN KONSENTRASI AMMONIUM (NH₄⁺) DAN FOSFAT (PO₄³⁻) DALAM AIR LIMBAH Shinta Enggar Maharani; Filemon Bram Gunas Junior; I Made Wahyu Wijaya
Jurnal Ilmiah Teknik Universitas Mahasaraswati Denpasar (JITUMAS) Vol. 6 No. 1 (2026): Jurnal Ilmiah Teknik Unmas (Jitumas) Denpasar
Publisher : Fakultas Teknik Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jitumas.v6i1.13770

Abstract

This study aimed to analyze the concentration trends of ammonium (NH₄⁺) and phosphate (PO₄³⁻) during 20 days of operation in a two-compartment biochar filtration system under continuous flow conditions, and to compare the performance of magnesium-activated biochar and non-activated biochar. Samples were collected daily from the influent (IN), effluent compartment 1 (EF1), and effluent compartment 2 (EF2). Concentrations were analyzed using spectrophotometric methods, and removal efficiency was calculated based on the difference between influent and effluent concentrations.The results showed that magnesium-activated biochar exhibited more effective and stable performance compared to non-activated biochar. For ammonium removal, activated biochar achieved efficiencies of 65–75%, while non-activated biochar only reached 30–60% and experienced a faster decline in performance due to media saturation. In terms of phosphate removal, activated biochar achieved efficiencies of 25–40% through Mg–PO₄ complex formation and micro-precipitation mechanisms. In contrast, non-activated biochar was ineffective and even showed negative removal efficiencies (-100% to -250%) due to phosphate leaching.Overall, magnesium activation significantly enhanced adsorption capacity, extended the effective operational period, and delayed media saturation in the continuous filtration system. Therefore, chemical modification of biochar is strongly recommended to improve nutrient removal performance in domestic wastewater treatment systems.
Co-Authors A A Gde Sutrisna Wijaya Putra Anggun Istri Wulantari, Sagung Bastiana, Angela Aprilia Budiarta , I Komang Filemon Bram Gunas Junior Filemon Bram Gunas Junior I Gede Angga Diputera I Gusti Bagus Sila Dharma I Komang Rika Gunawan I Made Pasek I Made Sastra Wibawa I Made Satya Graha I Made Wahyu Wijaya I Nyoman Arya Thanaya I Nyoman Waisnawa Budiswara I Putu Gede Adi Gunawan I Wayan Artana Indah Dianti Putri, Putu Krisna Kurniari Luh Putu Gangga Partiwi, Ni Luh Putu Mahendra Dewi M. Sudiana Mahendra Made Novia Indriani Mahendra Dewi, Ni Luh Putu Mardika, Made Nambung, Hermes Henryanto Ni Luh Putu Mahendra Dewi Ni Luh Putu Mahendra, Dewi Ni Made Rustini, Ni Made Ni Putu Suda Nurjani Ni Putu Suda Nurjani, Ni Putu Suda Putri Anjani, Ni Komang Ayu Putu Wijani, Ni Suda Nurjani, Ni Putu Vina Maharani, Made Wahyudi Wahyudi Wiratama, I Gusti Ngurah Made