以循環經濟策略建構營建廢棄物管理轉型之評估架構

Developing an evaluation framework for transforming management of construction and demolition wastes based on the circular economy strategy

張文綺(Wen-Chi Chang)

指導教授 ： 馬鴻文

國立臺灣大學/工學院/環境工程學研究所/碩士(2022年)

https://doi.org/10.6342/NTU202200206

摘要

營建廢棄物的龐大體積及重量，且其性質與一般家庭產出廢棄物的特性不同，無法透過堆肥、焚化等方式有效處理，對都市廢棄物管理產生沈重的壓力。而營建產業為高耗能產業，從營建材料的生產過程開始，所耗用的能資源都名列於各行業之前。隨著建築物的使用年限將至，預期大量的營建廢棄物將產出，迫切需要進行營建廢棄物管理之轉型。
本研究為探討營建廢棄物與營建工業之間如何以循環經濟模式，進行營建廢棄物減量與管理之轉型，透過回顧文獻整理營建廢棄物管理策略與循環經濟的精神，提出轉型評估架構。
本研究設計的轉型架構，是以營建廢棄物中的廢棄混凝土為出發，主要著重在逆向與順向之間的連結性，採用營建專案概念發展，而循環經濟的概念採用以物質循環為主，關注物質在封閉循環內的價值保存、循環速度以及是否造成其他生物圈的排擠，進而提出建議轉型方向與相關因子，本研究所提出之轉型評估架構，分別為經濟、科技、社會、環境與政府五大面向，而對應的因子為經濟—逆物流市場成熟度、投資環境與資金動能，社會—供應鏈間的利害關係人的協作、教育與覺醒，科技—資訊保存與流通度、技術可用性，環境—資源使用循環度、土地使用規劃與政府—法令完整度、市場推動與監控強度、跨部門間協調度。
最後以案例分析，探討我國目前的現況，我國拆除建物中的混凝土塊，橫跨營建剩餘土石方與營建廢棄物（營建混合物）兩大管理範疇，本研究以整合混凝土塊動靜脈產業為例，並以提出之理論架構檢視我國目前的現況，除檢視本研究提出之評估架構的完整性外，更進一步審視我國目前在營建廢棄物管理往循環經濟發展的進展、限制、成效，而因子的建立亦可提供政策進行轉型之評估。

關鍵字

循環經濟 ； 營建廢棄物管理 ； 逆向供應鏈 ； 回收再利用 ； 營建剩餘土石方

並列摘要

It is a heavy pressure on dealing with construction and demolition waste, because of its huge volume and weight and cannot be effectively treated by composting, incineration. The construction industry is a high energy-intensive industry. From the production process of construction materials, the energy resources consumed are listed ahead of all industries. As the service life of buildings is approaching, a large amount of construction waste is expected to be produced, and there is an urgent need to transform construction waste management.
In order to explore how the construction waste and the construction industry can be transformed into the reduction and management of construction waste in a circular economy mode, this study reviews the construction waste management strategies and the spirit of the circular economy, and then proposes an evaluation framework for transforming management of construction and demolition waste.
The framework is based on the waste concrete in the construction and demolition waste and mainly focuses on the connection between the forward and the reverse direction. It also adopts the concept of construction project development. The concept of circular economy in this study is mainly based on material circulation, focusing on the preservation of the value of materials in a closed cycle and the speed of circulation.
Proposed by this research, the framework are divided into five aspects: economy, technology, society, environment and government, and the corresponding factors are: Economy—reverse logistics market maturity, investment environment and capital momentum, society—cooperation of stakeholders in the supply chain, education and awareness, technology—information preservation and circulation, technology availability, environment—resource utilization rate, land use planning and government – integrity of laws and regulations, strength of market promotion and monitoring, and cross-departmental coordination.
Finally, with a case study of the current situation in Taiwan , and examined with the proposed theoretical framework. The waste concrete in Taiwan across the two major management areas of construction residual earthwork and construction and demolition waste (construction mixture), this study takes the integration of the arteriovenous industry of waste concrete as an example.In order to examining the integrity of the evaluation index framework proposed in this study, it further examines the current construction and demolition waste management in Taiwan. The factors can also provide an assessment of policies for transformation.

並列關鍵字

circular economy ； Construction and demolition waste management ； construction residual earthwork ； reverse supply chain ； recovery

參考文獻

1. Desa, U., Revision of world urbanization prospects. UN Department of Economic and Social Affairs, 2018. 16.

2. Kabirifar, K., et al., Construction and demolition waste management contributing factors coupled with reduce, reuse, and recycle strategies for effective waste management: A review. Journal of Cleaner Production, 2020. 263: p. 121265.

3. Lu, W. and H. Yuan, A framework for understanding waste management studies in construction. Waste Manag, 2011. 31(6): p. 1252-60.

4. Fatta, D., et al., Generation and management of construction and demolition waste in Greece—an existing challenge. Resources, Conservation and Recycling, 2003. 40(1): p. 81-91.

5. Kourmpanis, B., et al., Preliminary study for the management of construction and demolition waste. Waste Manag Res, 2008. 26(3): p. 267-75.