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All Journal REKAYASA Journal of the Civil Engineering Forum JURNAL REKAYASA KIMIA & LINGKUNGAN
Fildzah, Cantika Almas
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Physics

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Bioretention Design Simulation for Efficient Urban Stormwater Reduction Wicaksono, Ega Fajar; Hidayah, Entin; Fildzah, Cantika Almas
Journal of the Civil Engineering Forum Vol. 11 No. 1 (January 2025)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.12806

Abstract

The population increases, leading to extensive urbanization and the consequent rise in impervious surfaces. This urbanization trend has exacerbated stormwater runoff issues, necessitating sustainable stormwater management strategies. Low Impact Development (LID) techniques, such as bioretention, have emerged as promising solutions to mitigate the adverse effects of increased impervious surfaces on stormwater management. Through drainage simulation using EPA SWMM 5.2 software, this study assessed the effectiveness of bioretention in mitigating stormwater runoff within Pesona Regency Housing in Jember Regency. In this approach, hydrological techniques use rainfall for a 2-year return period based on the typology of the study area. The bioretention scenarios used coverage of 5%, 10%, and 20% of the subcatchment area as Scenario 1, 2, and 3. The simulation revealed promising reductions in peak runoff discharge across various scenarios, with average reduction rates of 80%, 88%, and 92% for Scenarios 1, 2, and 3, respectively. However, the effectiveness of bioretention varied across different junctions and scenarios due to factors such as location, junction area coverage, soil properties, and local drainage patterns. While larger bioretention areas generally resulted in greater runoff reduction, the study underscores the importance of considering location and cost-effectiveness in bioretention design. Overall, this research provides valuable insights into the efficacy of bioretention as a stormwater management strategy in rapidly urbanizing areas, offering guidance for property developers in planning flood-resistant housing with LID bioretention.
Efektivitas Media Filter Pasir Silika dan Arang Ampas Tebu untuk Menurunkan Warna Menggunakan Filtrasi Upflow Farras Fadillah, Raihan; Badriani, Ririn Endah; Fildzah, Cantika Almas
Rekayasa Vol 18, No 1: April 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i1.24483

Abstract

The availability of quality water is crucial for human survival. This study aims to evaluate the efficiency of reducing water colour through the upflow filtration method with variations in silica sand filter media and bagasse charcoal. The research method involves the preparation of research tools and materials, the manufacture of bagasse charcoal, and filter reactors. Experimental stages include raw water preparation and testing, the filtration process, filtration result water collection and testing, and data analysis. The results showed that the colour removal efficiency at 16.72 TCU was highest in reactor 2 (77.07%) and lowest in reactor 3 (45.85%). At 34.28 TCU, the highest efficiency was in reactor 2 (63.24%) and the lowest in reactor 3 (29.09%). The level of 46.08 TCU showed the highest efficiency in reactor 2 (59.33%) and the lowest in reactor 3 (22.53%). Two Ways ANOVA analysis showed that the thickness of bagasse charcoal filter media has a significant effect on colour reduction because the p value is smaller than 0.05. While the thickness of silica sand has no significant effect because the p value is greater than 0.05, The limitation of colour removal is due to the small surface area of silica sand, which cannot absorb a limited amount of dye.
Activation of Sugarcane Bagasse Biosorbent with Potassium Hydroxide and Hydrogen Chloride to Reduce Color of Batik Wastewater Pramitasari, Noven; Ramadani, Faisal Basri; Azis, Rovy Agustian; Bezariani, Calista Safa; Berliana, Rohinoor Intan; Badriani, Ririn Endah; Kartini, Audiananti Meganandi; Fildzah, Cantika Almas
Jurnal Rekayasa Kimia & Lingkungan Vol 19, No 2 (2024): Jurnal Rekayasa Kimia & Lingkungan (December, 2024)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v19i2.37943

Abstract

The textile industry, particularly the batik sector, significantly contributes to the Gross Domestic Product (GDP) of East Java Province. However, the batik dyeing process, which uses synthetic dyes like remazol, rapid, and naphthol, causes environmental issues due to the non-biodegradable nature of these dyes, leading to environmental pollution such as an increase in color levels in water bodies. This research investigated using activated sugarcane bagasse with KOH and HCl in batch adsorption systems as an alternative method. It compared the color efficiency removal in batik wastewater with variation biosorbent mass, contact time, and activator type. The study found that the highest percentage removal of dye substances was achieved with the KOH-activated biosorbent, reaching 69.46%, and the HCl-activated biosorbent demonstrated a 60.98% removal efficiency with a mass variation of 0.4 grams and a contact time of 30 minutes. Statistical analysis using multiple linear regression showed that independent variables (biosorbent mass, contact time, and activator) significantly affect the dependent variable (color removal efficiency) simultaneously. In the partial test, the independent variables of biosorbent mass and type of activator significantly affect color removal efficiency, but contact time does not significantly affect color removal efficiency.
Co-Authors Audiananti Meganandi Kartini Azis, Rovy Agustian Berliana, Rohinoor Intan Bezariani, Calista Safa Entin Hidayah Farras Fadillah, Raihan Noven Pramitasari Ramadani, Faisal Basri Ririn Endah Badriani, Ririn Endah Wicaksono, Ega Fajar