講演情報
[1O18]A Study on the Recycling of Destruction Waste for the Enhancement of Reconstruction in Sudan: A Case in Wad Nubawi -Khartoum State
*OSHIEK ISLAM ABUAMNA1 (1. Toyo University)
キーワード：
Destruction Waste、On-site Recycling、Reconstruction
The April 2023 conflict in Sudan generated a huge amount of destruction waste, posing severe environmental and public health risks while hindering recovery. Wad Nubawi, a neighbourhood in Khartoum State, experienced extensive residential damage, creating an urgent need for sustainable destruction waste management strategies. This study examines the feasibility of on-site recycling of brick waste into paving materials as a locally adaptable solution for post-conflict reconstruction.
Methods used in this study were a field survey of 100 houses selected for safety and accessibility, interviews with stakeholders such as the Khartoum State Cleaning Corporation, and a comparative cost analysis between landfilling and on-site recycling. Data collection focused on estimating waste quantities and evaluating economic, social, and environmental feasibility. Insights from a field visit to the ECO system company, Japan, informed the proposed framework through observation of advanced recycling practices.
The field survey revealed that the high generated waste consisted of bulk bricks (1772 m³), concrete (204 m³), and 40 m³ of ceramic. It indicated considerable damage to the surveyed residences, with only two houses remaining undamaged. 98 houses exhibited varying degrees of damage: 64 houses sustained damage of 50% or more. 34 houses had damage of 40% or less. Most of the damaged houses were single-story 95. The cost of landfilling was estimated at 45.5 million SDG, compared to 24.1 million SDG for on-site recycling, a savings of approximately 53%. Recycling not only reduces costs but also produces valuable paving materials, unlike disposal.
The study concludes that on-site recycling of destruction waste, particularly brick waste, is both feasible and cost-effective, with potential for replication in other war-affected regions. Recommendations include clearance of unexploded ordnance, site safety assessments, worker training, stakeholder coordination, pilot projects in cleared zones, and policy development to integrate safe recycling practices into reconstruction planning.
Methods used in this study were a field survey of 100 houses selected for safety and accessibility, interviews with stakeholders such as the Khartoum State Cleaning Corporation, and a comparative cost analysis between landfilling and on-site recycling. Data collection focused on estimating waste quantities and evaluating economic, social, and environmental feasibility. Insights from a field visit to the ECO system company, Japan, informed the proposed framework through observation of advanced recycling practices.
The field survey revealed that the high generated waste consisted of bulk bricks (1772 m³), concrete (204 m³), and 40 m³ of ceramic. It indicated considerable damage to the surveyed residences, with only two houses remaining undamaged. 98 houses exhibited varying degrees of damage: 64 houses sustained damage of 50% or more. 34 houses had damage of 40% or less. Most of the damaged houses were single-story 95. The cost of landfilling was estimated at 45.5 million SDG, compared to 24.1 million SDG for on-site recycling, a savings of approximately 53%. Recycling not only reduces costs but also produces valuable paving materials, unlike disposal.
The study concludes that on-site recycling of destruction waste, particularly brick waste, is both feasible and cost-effective, with potential for replication in other war-affected regions. Recommendations include clearance of unexploded ordnance, site safety assessments, worker training, stakeholder coordination, pilot projects in cleared zones, and policy development to integrate safe recycling practices into reconstruction planning.
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