Design and fabrication of in-vessel aerobic compost machine with integrated sensors, heating system, and rotary mixer/ Ralfh Vincent R. Agtarap, Thomas Jefferson E. Antonio, Joker S. Aquino, Reigne Francine Claudette B. Bautista, James Lester C. Dela Cruz, and John Mark B. Sanchez.--

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Agtarap, Ralfh Vincent R [author]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2025.Description: ix, 105pages: 29cmContent type:

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BTH TJ 145 A38 2025

Dissertation note: College Of Engineering.-- Bachelor of science in mechanical engineering: Technological University of the Philippines, 2025. Summary: Flower waste from markets and events often ends up in landfills, contributing to the already serious environmental issues. In order to help lessen waste, this study presents a mechanical solution that aims to turn that waste into something useful — compost. This study developed an in-vessel aerobic composting machine that includes a rotating mixer, heating system, and sensors that check moisture and temperature to make sure to provide a high-quality compost that could lead the plants and crops to healthier growth and reduce the natural composting time of flower waste. These parameters contribute to a better environment and conditions for helpful microorganisms to break down the flower waste faster than its natural composting cycle. The in- vessel machine lowered the composting cycle by around 10%-20% compared to traditional natural composting methods. The output also showed good quality, with 5.0 to 8.0 pH levels which is the proper pH level for compost, and a balanced 30:1 carbon-to-nitrogen ratio, making it suitable for farming use. This design can help minimize the waste ending up on landfills and promote composting in urban areas in a practical, ecological and sustainable manner.

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Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TJ 145 A38 2025 (Browse shelf(Opens below))	c.1	Not for loan		BTH0006414

Bachelor's thesis

College Of Engineering.--
Bachelor of science in mechanical engineering: Technological University of the Philippines,
2025.

Includes bibliographic references and index.

Flower waste from markets and events often ends up in landfills, contributing to the already
serious environmental issues. In order to help lessen waste, this study presents a mechanical
solution that aims to turn that waste into something useful — compost. This study developed an
in-vessel aerobic composting machine that includes a rotating mixer, heating system, and sensors
that check moisture and temperature to make sure to provide a high-quality compost that could
lead the plants and crops to healthier growth and reduce the natural composting time of flower
waste. These parameters contribute to a better environment and conditions for helpful

microorganisms to break down the flower waste faster than its natural composting cycle. The in-
vessel machine lowered the composting cycle by around 10%-20% compared to traditional natural

composting methods. The output also showed good quality, with 5.0 to 8.0 pH levels which is the
proper pH level for compost, and a balanced 30:1 carbon-to-nitrogen ratio, making it suitable for
farming use. This design can help minimize the waste ending up on landfills and promote
composting in urban areas in a practical, ecological and sustainable manner.

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