111

11,200 千元

科技發展-環境科學及技術之研究

2022/01/22

2022/12/01

方孟德

廢管處

許百竣

工業技術研究院

廢棄物管理

無機再生粒料、填海造陸、現地試驗

Inorganic recycled aggregate, Land reclamation, Field test

洪瑋濃

王詩婷

03-5732033#

yujin21332@gmail.com

無機再生粒料由無機資源物經資源化處理產製而成，其性質與天然砂石相近，可替代天然資源應用於陸域及港區填築工程。日本等先進國家於港區填築工程，除使用營建剩餘土石方外，也使用無機再生粒料填築，減少天然資源使用。計畫透過盤點商港整體發展規劃（111-115年）、國際商港未來發展及建設計畫（111-115年），並協助研擬「推動再生粒料應用於港區填築工程綱要計畫」，以掌握無機再生粒料應用於港區工程之規劃填築區位（包含臺北港、臺中港、高雄港及彰濱工業區），以港區潛在填築量能至少10%估算，無機再生粒料之填築量預估約3,709萬公噸。 為提高工程單位使用焚化再生粒料意願，並驗證焚化再生粒料應用於港區填築工程之合適性，針對焚化再生粒料應用於港區相關工程及於不同水體浸泡中長期進行重金屬檢測。檢測結果顯示，焚化再生粒料鋪設之港區施工便道或維護便道，在環境監測迄今約5年之周遭土壤及逕流水監測結果顯示，重金屬測值皆無呈現上升趨勢。此外，以焚化再生粒料或其加工再製品分別浸泡海水或地下水至少24個月，浸泡液重金屬測值穩定或與背景值無明顯差異，顯示焚化再生粒料適用於陸海域之相關工程應用。 依據行政院於110年6月11日核定之「再生粒料應用於港區造地填築作業程序｣，計畫完成辦理「焚化再生粒料於臺北港區現地填築試驗」，試驗地點位於臺北港第一期物流倉儲區防風林區造地範圍內，111年5月9日填築焚化再生粒料約50立方公尺，計102.35公噸。港區現地填築試驗於施工前後進行環境監測，施工後環境監測頻率為每季1次，檢測包含土壤、地表水、地下水、海水水質、海域底質重金屬及土壤戴奧辛濃度。採集樣品之重金屬（鎘、鉛、砷、汞、鉻、銅、鎳、鋅）及戴奧辛濃度均符合其對應相關標準，且填築後歷次監測值與填築前背景值沒有明顯差異。最後，彙整港區現地填築相關工程案例及焚化再生粒料於臺北港區現地填築試驗結果，完成新訂「焚化再生粒料應用於港區填築使用手冊」（草案），作為焚化再生粒料推廣應用於港區填築之使用參考。

無機再生粒料、填海造陸、現地試驗

111B002(公開).pdf

9MB

成果報告公開版

2023/2/1 上午 12:00:00

The properties of inorganic recycled aggregate are similar to natural sand and gravel, a good alternative materials for land reclamation. Many developed countries, such as Japan, tried to reduce the usage amount of natural resources by using not only construction residual soil but also inorganic recycled aggregate for land reclamation. In this project, we inventories two overall construction/development harbor plans and scheme detailed reclamation plan for harbor area, including Taipei Port, Taichung Port, Kaohsiung Port, and Changhua Coastal Park. A proximately usage amount of inorganic recycled aggregate reach to 37.09 million tons, estimated based on the 10% reclamation capacity in harbor area. In order to verify the suitability of incinerated recycled aggregate in port land reclamation, a long-term study of heavy metal leaching was conducted with the application of incinerated recycled aggregate immersed under different categories of water bodies. The incinerated recycled aggregated and related processed products as samples are immersed under seawater and groundwater at least 24 months, respectively. Results of heavy metal leaching values are stable and no significant difference between samples and background. In addition, the soil and water samples are collected from the port area filled with incinerated recycled aggregate within five years application. The results showed that no significant increasing of heavy metal values is observed in either soil or water samples. According to the results suggested, therefore, the incinerated recycled aggregate is acceptable application to land or port area reclamation. A total of 50 cubic meters, 102.35 tons, of incinerated recycled aggregate are filled in the storage and windbreak area of Taipei Port, in May, 9, 2022. After completed the reclamation, once per seasonally sampling of soil, surface water, groundwater, seawater and sediment are conducted, and analyzed these samples for the concentration of Dioxins and heavy metals, such as cadmium, lead, arsenic, mercury, chromium, copper, nickel, and zinc. No significant difference increasing of Dioxins and heavy metals values are observed between samples from background and samples from reclamation area. All data showed compliance with applicable laws and regulations. Due to the practical experience in this project, the construction guidelines of application incineration recycled aggregate in port area reclamation is drafted and revised, contributing to the future application and implementation.

Inorganic recycled aggregate, Land reclamation, Field test