SI 2.2.7 Evidence Waste tracking (Nattiga 2025)

University Rating System (HURS)

University : Siam University

Country : Thailand

Web Address : https://sustainability.siam.edu

SI 2.2 Implementation of Waste Management Systems

[2.2.7] Waste Tracking (Year: 2024)

1) Amount of recycled waste (metric ton) generated and recycled in 2024

Type of Recycled Waste

Waste Generated

(Metric ton)

Waste Recycled

(Metric ton)

Papers 11.185 11.185
Plastics 10.152 10.152
Aluminum cans 15.101 15.101
Other, i.e., glasses, rubbers tires, etc. 0.105 0.105
Total 36.543 36.543

2) Amount of organic waste (metric ton) generated and recycled in 2024

Type of Waste

Waste Generated

(Metric ton)

Waste Recycled

(Metric ton)

Food Waste 74.659 74.659
Food-soiled paper waste 15.991 15. 189
Total 90.65 89.848

3) Amount of hazardous waste (metric ton) generated and recycled in 2024

Type of Toxic Waste

(Produced)

Waste Generated

(Metric ton)

Waste Recycled

(Metric ton)

Acid Waste 10.101 10.001
Alkaline Waste 10.014 9.999
Miscellaneous Aqueous Waste 0.891 0.881
Oxidizing Waste 1.982 1.982
Total 22.988 22.638
Waste Tracking (Siam University, Thailand)
Flow chart of waste tracking and waste separation classified by trash bins

Description:

The university has installed waste separation bins across the campus for recyclable, general, organic, and hazardous waste, and established a waste sorting and collection area at the back of the university. A systematic waste management program has been initiated, along with a policy to encourage staff participation through a waste management point accumulation system to promote continuous engagement. An IoT-based monitoring system has been implemented to measure and track the amount of separated waste, supporting efficient and data-driven campus waste management.

The monitoring process of waste collection and recycling rates, previously conducted manually by waste auditors through weighing and recording data via Google Form, is being upgraded in line with the Data-Centric Policy. The new system introduces an IoT-based incentive program that allows staff to earn points for proper waste management. Waste is weighed at IoT-connected collection points, where users scan a QR code to record data automatically. All data are transmitted to the Green Information Dashboard, enabling instant monitoring and analytics. An automated analysis system compiles reports for the responsible teams to support evaluation and process improvement.

Waste collection and recycling rates were tracked. Waste auditor monitored and measured each type of waste separated by using empirical technique, such as weighing and recording through google form and drive. All data is sent to responsible team in the campus.

All staff and students including merchants in canteens are asked to separate organic waste (i.e., cooked foods left from consumption and raw materials left from preparation) from general waste (i.e., food-soiled plastic and paper wastes, tissue papers, etc.). Inorganic waste can be mostly recycled, such as plastic bottles and lids, aluminum cans and glasses, which were collected and sent to a third party for recycling. A certain kind of organic waste will be used for animal feed and compost, while the general waste is sent to landfill or a waste-collect station and then the garbage collectors (Phasi Charoen Municipality Office) managed them afterwards. All hazardous waste is managed and disposed by an authorized company.

Organic waste for animal meals Organic waste for compost / Fertilizer and EM water

Inorganic recycled waste for new items