EPA-107-H103-02-A206

107

5,390 千元

廢棄物管理-事業廢棄物管理

2018/06/05

2018/12/31

洪瑋濃

廢管處

鄭書華

財團法人工業技術研究院

廢棄物管理

焚化底渣、再生粒料、溶出試驗

Incineration bottom ash, Recycle aggregate, Leaching Test

卓坤慶

洪瑋濃

03-5820100#

wnhung@itri.org.tw

本計畫目的在於藉由檢測國內焚化再生粒料特性及以不同溶出方法，獲得焚化再生粒料環境品質良窳，據此研析焚化再生粒料由材料產製或改質為產品，在不同生命週期內的環境品質及管理策略。本計畫執行期間自107年6月5日至107年12月31日止。主要工作目標包括：一、研析資源化處理技術與機構升級之可行性；二、訂定焚化再生粒料應用於環境的品質檢測項目、方法、頻率及標準；三、修正檢討焚化再生粒料使用用途及管理措施。 本計畫執行成果及建議包括： 1.計畫採集18座各焚化廠之處理機構處理後產出再生粒料樣品，並完成焚化再生粒料物化特性檢測及環境品質檢測。物化特性檢測項目包括粒料比重、吸水率、健度試驗及洛杉磯磨損試驗等。環境品質檢測項目包括重金屬毒性溶出程序檢測、日本再生粒料檢測方法及標準（JIS K 0058-1溶出試驗及 JIS K 0058-2 酸可萃取試驗）、向上流動滲濾試驗（3組試驗，21點次）、戴奧辛總毒性當量濃度（7點次）、再生粒料pH值及固液比10之萃液氯離子檢測、重金屬全量分析（9點次）。此外，也針對桃園市、烏日、溪州等3座焚化再生粒料製成之CLSM水泥再製品進行再生粒料溶出程序檢測。 2.研析各類資源化處理程序及提出建議規範，並參考國外資源化處理技術，研析資源化處理技術升級之成本、環境及運用效益。依據今年度對國內再生粒料資源化處理廠之產品分析結果顯示，控管再生粒料之重金屬含量以及酸鹼pH值是提高品質之關鍵，建議透過加強前處理程序如分選、穩定化、熟化及水洗等處理單元，提升再生粒料產品品質。增設水洗程序或增加鐵/非鐵金屬揀選率有助於精進再生粒料品質，若同時新設分選系統及水洗系統，粗估每公噸粒料之處理費用將可能增加800~1,060元。 3.研析荷蘭、日本對再生粒料之管理精神及工作檢測分析結果，並完成研訂焚化再生粒料及其製品之應用於環境的品質溶出程序方法、檢測項目、檢驗頻率及標準。計畫參照日本爐渣類資源化產品應用於環境的品質檢測方法「JIS K 0058-1之5原樣態溶出程序」及「JIS K 0058-2酸可萃取程序」，建議「再生產品化學物質環境溶出程序」及「再生產品化學物質酸可萃取程序」為我國焚化再生粒料的溶出程序方法。建議「再生產品化學物質環境溶出程序」的檢測項目為地下水污染管制標準，溶出管制標準依循既有的地下水污染管制標準值。 4.為多元化用途使用及強化管理，建議修正之焚化再生粒料使用用途及管理措施，採雙重品質規範，依焚化再生粒料品質進行分級用途管理，以既有的再利用機構出貨規範「焚化再生粒料標準」為基礎，再依使用情境導入「再生粒料用途規範」。再生粒料產製品擬依溶出標準及用途進行規範。依據使用用途建議分類可分為三類，包含第一類粒料製品，第二類加工再製品，以及第三類特定用途，包含水泥生料、衛生掩埋場覆土兩種。

焚化底渣、再生粒料、溶出試驗

EPA-107-H103-02-A206 公開版.pdf

6MB

2019/2/1 上午 12:00:00

This project aims to obtain the environmental quality and the characteristics of recycled aggregates with different dissolution approaches, and to evaluate the potentially improvement the process of recycled aggregates production. Based on the results, the environmental quality standard and management strategies under the aspects of life cycle is proposed. The project executed from June 5, 2018 to December 31, 2018. The major goal of this projects include: (1)Evaluate the feasibility of applying advanced resources treatment technology and upgrading the production process; (2) Determine the examination approaches of environmental quality items and related standards for incineration recycled aggregates; (3) Revise and review the current management strategies of recycled aggregates. The major results are summarized as follows: 1.Recycled aggregates products samples from 18 incineration plants are collected, and executed the physical and chemical properties testing, as well as the environmental quality testing. The physical and chemical properties testing of recycled aggregates included the specific gravity, water absorption, soundness, and resistance to degradation of coarse aggregate by abrasion and impact in the Los Angeles machine. Environmental quality testing of recycled aggregates included heavy meatal toxicity characteristic leaching procedure(TCLP), JIS K0058-1 leaching test and JIS K0058-2 test method for acid extractable contents of chemicals, up-flow percolation test(3 sets, 21 samples), dioxins toxicity (7 samples), pH, extraction chlorine ion concentration(L/S=10), and heavy metal analysis (9 samples). In addition, the recycled aggregates made as the CLSM products from Taoyuan City, Wuri and Xizhou incineration plants are processed toxicity characteristic leaching procedure, respectively. 2.Evaluate the current resource treatment procedures and propose revised recommendations refer to the advanced technologies from foreign countries, and to estimate the cost, environment and application benefits of upgrading the current treatment procedures. According to the analysis results of recycled aggregates from domestic institutions this year, the heavy metal content and the pH value of recycled aggregates play the important role in quality improvement. In order to improve the recycled aggregates quality, it is recommended to enhance the pretreatment procedure of sorting, stabilization, aging and water washing units. Adding a water washing unit can increase the iron/non-ferrous metal selection efficiency, and improve the quality. If adding an advanced sorting and washing units in current institution, the treatment cost increase approximately by 800 to 1,060 NT dollars per tons of recycled aggregates. 3.Assess the management logic and detection approaches of incineration recycled aggregates in Netherlands and Japan, and complete the proposed testing procedures, analysis items, frequency and standards for recycled aggregates management. According to the Japan slag resources products testing method, JIS K0058-1 leaching test and JIS K0058-2 test method for acid extractable contents of chemicals, we proposed that “Recycled Chemical Substances Environmental Dissolution Procedure” and “The Acid Extractable Procedure for the Chemicals Substances of Recycled Products ”in Taiwan. We recommend the control standard for “Recycled chemical substances environmental dissolution procedure” follows the regulation of “Groundwater pollution control standards.” 4.In order to promote a variety of usage and enhance management of recycled aggregates products, it is recommended to revise the application and management strategies with two quality standards in accordance with the current recycled aggregates delivery standards, and the usage classification of recycled aggregates. Based on the delivery standards and usage classification, the recycled aggregates products can be classified into three categories, including Type-I aggregates products, Type-II aggregates products, and Type-III specifics aggregates products, type of which is used for cement raw materials and sanitary landfills.

Incineration bottom ash, Recycle aggregate, Leaching Test