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Waste management optimization model: toward campus ecofarming based on local food genetic resources for achieving SDG 2 (Zero Hunger) Cover

Waste management optimization model: toward campus ecofarming based on local food genetic resources for achieving SDG 2 (Zero Hunger)

Open Access
|Sep 2026

Figures & Tables

FIGURE 1.

Research novelty

Source: own work (2025).

FIGURE 2.

Research and development (R&D) stages for integrated waste processing and ecofarming at the State University of Malang (UM)

Source: own work (2025).

TABLE 1.

Average daily amount of organic waste managed at the State University of Malang (UM)

Type of organic wasteAmount
total [kg]reused [kg]up-cycled [kg]share of the reused and up-cycled [%]
Food waste3751507560
Green waste3.2502.58025087
Non-hazardous wood waste4902567568
Other2251475991
Total organic waste4.3403.13345982

[i] Source: own work.

FIGURE 3.

Campus waste management system: (a) organic waste shredding; (b) compost fermentation

Source: own field documentation (2025).

FIGURE 4.

Temporary waste disposal sites map at the University of Malang (UM)

Source: own documentation (2025).

FIGURE 5.

Plant diversification: (a) pumpkin plants, (b) tuber plants, (c) cavendish banana plant seedlings, (d) mixed plants of cassava, (e) breadfruit and mangosteen seedlings, (f) mature breadfruit trees

Source: own field documentation (2024).

FIGURE 6.

Sweet potato harvesting process at the University of Malang (UM)

Source: own field documentation (2024).

FIGURE 7.

Local food genetic resource planting distribution map

Source: own field documentation (2025).

FIGURE 8.

Circular resource system: (a) collection of organic waste (leaves) in campus areas, (b) staff conducting the grinding of organic waste, (c) results of the grinding process, (d) biomol production process for compost decomposition bacteria, (e) ground organic waste periodically watered with the biomol solution, and (f) organic compost products ready for use or marketing

Source: own field documentation (2025).

FIGURE 9.

Green campus roadmap of the State University of Malang (UM) in sustainable environmental management

Source: own work (2025).

FIGURE 10.

Waste management optimization model toward campus ecofarming based on local food genetic resources

Source: own work (2025).

DOI: https://doi.org/10.22630/srees.10902 | Journal eISSN: 2543-7496 | Journal ISSN: 1732-9353
Language: English
Page range: 307 - 332
Submitted on: Oct 25, 2025
Accepted on: May 8, 2026
Published on: Sep 30, 2026
Published by: Warsaw University of Life Sciences - SGGW Press
In partnership with: Paradigm Publishing Services

© 2026 Sumarmi Sumarmi, Dicky Arinta, Eli Hendrik Sanjaya, Agung Suprianto, Novika Adi Wibowo, Adellia Wardatus Sholeha, published by Warsaw University of Life Sciences - SGGW Press
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.