Shear properties of mixed waste materials and the metal recovery ratio

• Main Author: Law, Clement Ying Hao
• Other Authors: Fei Xunchang
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2024
• Subjects: Engineering
• Online Access: https://hdl.handle.net/10356/176131
• Institution: Nanyang Technological University

For a small country like Singapore, land space is of huge value to us. With high population density and a large amount of waste production, there will not be enough space left on the island for everyone soon. One of the possible ways to solve both the waste and land issue is to reuse the waste material as a land reclamation material. As a country with limited land area, Singapore has been relying on sand imports from other countries for land reclamation efforts to meet the land requirements. However, it is risky to only rely on other countries for their exports to continue our land expansion. In this report, Mixed waste Material (MM) samples are extracted from Semakau Landfill to test their suitability as a land reclamation material. Their mechanical properties will be determined through shear testing and the parameters will be used to compare with the current material used for land reclamation, which is sand. As Singapore is also scarce in raw materials, it is crucial to not let any material go to waste. Most of the incinerated waste material may still possess some remnants of raw materials that are resistant to heat and not broken down fully. Hence, MM samples are also studied to check for the possibility of processing the waste for reuse and recycling of materials.