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All Journal BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Advance Sustainable Science, Engineering and Technology (ASSET)
Andri Krisna Hidayat
Sadiva Group
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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DESIGN OF A HOMEMADE BIOFILTER FOR DOMESTIC WASTEWATER TREATMENT IN THE SITU RAWA BESAR Syarifah; Taqi Muhammad Javani; Latricia Aina Hidayat; Kesatria Sughani; Jerry Maratis; Andri Krisna Hidayat; Ahmad Irfandi
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 12 No. 2 (2026): Biolink February
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v12i2.16464

Abstract

Water pollution from domestic wastewater is one of the main causes of eutrophication in public waters, including the Rawa Besar Lake in Depok. Eutrophication is characterized by an explosion of algae growth that leads to a decrease in dissolved oxygen and the death of aquatic life. This research aims to design a simple (homemade) biofilter technology using local media such as red brick, zeolite, and ceramic rings that is accessible and easily accessible to the public to purify household wastewater before it is discharged into the environment. The research method uses an experimental Research and Development (R&D) approach, involving the design, fabrication, and performance testing of a small-scale biofilter prototype. Wastewater quality was evaluated before and after treatment by measuring turbidity, odor, and pH as key indicators of treatment effectiveness. The results showed that the biofilter reduced water turbidity, eliminated unpleasant odors, and stabilized wastewater pH toward neutral conditions, indicating effective removal of suspended solids and organic contaminants. The results of this study indicate that the biofilter technology developed effectively treats contaminated water by changing the turbidity, odor and pH of the wastewater. This biofilter is designed for easy domestic use, at a low cost, and with an ecological approach.
Development and Performance Evaluation of a Micro-Scale RDF Briquette–Fueled Steam Power Prototype Syarifah; Latricia Aina Hidayat; Rini Yunita Sari; Jerry Maratis; Andri Krisna Hidayat; Pawenary; Hendri
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.3007

Abstract

Plastic waste is a major environmental problem in Indonesia due to its non-biodegradable nature. One innovative solution is converting waste into energy using Refuse-Derived Fuel (RDF) briquettes for small-scale power generation. This research designed and tested an RDF-based micro power plant prototype using briquettes composed of 80% dry organic biomass and 20% plastic for safe and stable combustion. The prototype consists of a combustion chamber, heat exchanger, impulse-type micro steam turbine driven by low-pressure steam, and a 12V low-speed DC generator. Performance was evaluated through temperature, voltage, current, power output, and efficiency measurements. The highest performance was achieved using 500 g of RDF, producing 0.02 A, 0.7 V, and 0.014 W at 135°C over 20 minutes, with an efficiency of 2.69×10⁻⁶%. Although efficiency was very low, the study demonstrates proof-of-concept feasibility and provides a baseline for future optimization of thermal and energy conversion efficiency.
Co-Authors Hendri Irfandi, Ahmad Kesatria Sughani Latricia Aina Hidayat Maratis, Jerry Pawenary, Pawenary Rini Yunita Sari Syarifah Taqi Muhammad Javani