Rain-cycling: design and implementation of a rainwater filtration and automated distribution system for recycling at the irtc building of tup - manila/ Allen C. Aguilar, John Zyrille C. Favorito, Vergel G. Filomeno, Aldrin S. Regalario, and Christian Dave SP. Regara.--

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Aguilar, Allen C [author]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2024.Description: xiv, 165pages: 29cmContent type:

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BTH TA 145 A38 2024

Dissertation note: College of Engineering.-- Bachelor of science in civil engineering: Technological University of the Philippines, 2024. Summary: Water is essential for life, yet access to clean water is increasingly threatened by scarcity and pollution. In the Philippines, freshwater withdrawals rose from 89.0 bcm to 91.0 bcm between 2021 and 2022 (PSA, 2023), underscoring the growing demand for water resources. To address this, a pilot rainwater recycling system was developed for the Integrated Research and Training Center (IRTC) building at the Technological University of the Philippines Manila as an alternative water source. The system leverages agricultural waste, frequent rainfall, and existing rainwater collection tanks. Using multimedia filtration composed of coarse silica sand, coconut coir, and granulated activated carbon (GAC) from coconut shells, the filtered rainwater is reused for flushing toilets and urinals. Coconut coir and GAC, both agricultural byproducts, offer a sustainable filtration solution. The system complies with sanitation standards set by the Department of Health and the Department of Environment and Natural Resources. Water quality testing revealed significant improvements: pH increased from 6.41 to 7.00, turbidity dropped from 3.5 NTU to 0.9 NTU, TSS remained <3 mg/L, nitrate decreased from 1.97 mg/L to 0.85 mg/L, lead stayed at <0.01 mg/L, and E. coli was reduced from >8 MPN/100 mL to <1.1 MPN/100 mL. These results demonstrate that the rainwater recycling system is an efficient, practical, and environmentally friendly solution for non-potable water applications.

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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 145 A38 2024 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0005720

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Bachelor's thesis

College of Engineering.-- Bachelor of science in civil engineering: Technological University of the Philippines, 2024.

Includes bibliographic references and index.

Water is essential for life, yet access to clean water is increasingly threatened by
scarcity and pollution. In the Philippines, freshwater withdrawals rose from 89.0 bcm to
91.0 bcm between 2021 and 2022 (PSA, 2023), underscoring the growing demand for
water resources. To address this, a pilot rainwater recycling system was developed for the
Integrated Research and Training Center (IRTC) building at the Technological University
of the Philippines Manila as an alternative water source. The system leverages agricultural
waste, frequent rainfall, and existing rainwater collection tanks. Using multimedia
filtration composed of coarse silica sand, coconut coir, and granulated activated carbon
(GAC) from coconut shells, the filtered rainwater is reused for flushing toilets and urinals.
Coconut coir and GAC, both agricultural byproducts, offer a sustainable filtration solution.
The system complies with sanitation standards set by the Department of Health and the
Department of Environment and Natural Resources. Water quality testing revealed
significant improvements: pH increased from 6.41 to 7.00, turbidity dropped from 3.5 NTU
to 0.9 NTU, TSS remained <3 mg/L, nitrate decreased from 1.97 mg/L to 0.85 mg/L, lead
stayed at <0.01 mg/L, and E. coli was reduced from >8 MPN/100 mL to <1.1 MPN/100
mL. These results demonstrate that the rainwater recycling system is an efficient, practical,
and environmentally friendly solution for non-potable water applications.

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