109

9,488 千元

廢棄物管理-資源循環再利用

2019/12/17

2020/11/30

洪瑋濃

廢管處

許百竣

工業技術研究院

廢棄物管理

焚化底渣、再生粒料、再生粒料環境用途溶出程序

Incinerator Bottom Ash, Recycled Aggregates, Recycled Aggregates Environmental Leaching Procedure

陳柏均

03-5732767#

BJChen@itri.org.tw

本計畫為配合環保署於109年5月18日公告「垃圾焚化廠焚化底渣再利用管理辦法」，以「再生粒料環境用途溶出程序(NIEA R222)」對焚化再生粒料以及其他無機再生粒料進行檢測，建立環境用途溶出基線資料，探討再利用機構同批次焚化底渣及焚化再生粒料之金屬溶出量變化，規劃試驗有焚化再生粒料自然熟化堆置試驗、以及加工再製品CLSM 長時間浸泡試驗，以驗證焚化再生粒料環境標準合宜性。最後依據試驗結果，研擬焚化再生粒料降低重金屬溶出之配套管理對策，提出無機再生粒料之環境用途標準建議。 計畫進行自然熟化堆置試驗、以及加工再製品長時間浸泡試驗，在自然熟化堆置試驗中，大多數焚化再生粒料表層及中層樣品之鉛及銅溶出會隨熟化時間增加而下降，於熟化第45日時，皆能符合110年1月1日生效之第二級焚化再生粒料環境標準，而在焚化再生粒料加工再製品長時間浸泡試驗中，加工再製品長時間浸泡地下水至第6個月之金屬溶出濃度與地下水背景值無太大差異，符合第一類地下水污染管制標準。 為因應焚化再生粒料環境標準施行，計畫針對分選、熟化、水洗及加藥穩定化等處理技術，進行原理、處理機制、技術種類、案例參考及配套措施研析，以及依據計畫試驗結果，研擬「焚化再生粒料處理技術指引(稿)」。同時計畫延續研訂焚化再生粒料環境標準作法，採用「再生粒料環境用途溶出程序(NIEA R222)」檢測不同類別之無機再生粒料，如轉爐石、還原碴、氧化碴、燃煤飛灰、燃煤底灰、廢玻璃、廢陶瓷及瀝青刨除料等，並參考我國地下水污染管制標準(分為二類標準)項目選擇進行檢測，依據試驗結果提出無機再生粒料環境用途標準建議基本原則。

焚化底渣、再生粒料、再生粒料環境用途溶出程序

108A441_期末報告定稿本公開版.pdf

13MB

2021/2/1 上午 12:00:00

The objective of this project is to build up the leaching baseline for environmental application of recycled aggregates. According to the Environmental Protection Agency’s announcement on May 18, 2020, “Municipal Solid Waste Incineration Bottom Ash Recycling Management Regulations”, this project had studied and analyzed the incineration recycled aggregates and other inorganic recycled aggregates using “Recycled Aggregates Environmental Leaching Procedure (NIEA R222)”. In order to evaluate the variation on metal leaching between same batch incineration bottom ash and recycled aggregates from recycling facility, experiments had conducted including natural aging process test and Controlled-Low-Strength-Materials (CLSM) long-term immersion test, for verification the suitability of incineration recycled aggregates environmental standards. According to the 45 days natural aging process results, it indicated that a significant reduced of lead (Pb) and copper (Cu) leaching concentration from either surface or middle level of incineration bottom ash samples meet requirements of “the second category of incineration recycled aggregates environmental standards”, which effective date is on January 1, 2021. On the other hand, the results of all CLSM samples after 6 months immersion within groundwater showed that all samples’ metal leaching concentration close to the background concentration and meet the requirement of “the first category of groundwater pollution control standards.” On the basis of the experiment results, this project evaluated the principle and mechanism of sorting, aging, washing, and stabilization treatment technologies, as well as summarized appropriate treatment approaches for incineration recycled aggregates to implement the incineration recycled aggregates environmental standards. A draft of “A guideline of Incineration Recycled Aggregates Treatment Technologies” has completed to provide government authorities and related concerned executive making the management strategies. Meanwhile, the project applied the “Recycled Aggregates Environmental Leaching Procedure (NIEA R222)” to examine different types of inorganic recycled aggregates, such as basic-oxygen-furnace (BOF) slag, reducing slag, coal fly/bottom ash, etc. The examined results refer to the first and second categories of “Groundwater Pollution Control Standards” has been suggested the management strategies for inorganic recycled aggregates environmental standards.

Incinerator Bottom Ash, Recycled Aggregates, Recycled Aggregates Environmental Leaching Procedure