CMP污泥與垃圾焚化混合灰共融熔渣於水泥砂漿之工程性質

Properties of Slag Cement Mortar Modified with MSWI Ash-mix and CMP Sludge

張介人(Chieh-Jen Chang) ； 粘凱傑(Kai-Jie Nian) ； 林郭港(Kuo-Kang Lin) ； 李增欽(Tzen-Chin Lee)

《聯大學報》 7卷2期 (2010/12) Pp. 315-329

https://doi.org/10.29847/JNUU.201012.0015

摘要

將垃圾焚化爐所產生之飛灰與洗滌灰，依其產出比例混合成混合灰，再添加該混合灰一半重量之CMP污泥予以調質混合，其後將該調質混合灰進行熔融處理，以所得之調質混合灰熔渣用以取代5、10、20、30 wt.%水泥灌鑄成5×5×5-立方公分之水泥砂漿試體進行抗壓試驗等，實驗結果顯示其初期1-3天之抗壓強度即與純水泥砂漿試體相近而略高，而14-90天齡期之熔渣砂漿試體抗壓強度，約為純水泥砂漿試體抗壓強度之114~133%，顯現卜作嵐反應對其抗壓強度之成長效果良好。本文亦同時進行毒性特性溶出試驗，初、終凝試驗，與流度試驗，試驗結果顯示該兩種廢棄物之共融熔渣可取代部分水泥使用於水泥砂漿中，深具資源化再利用之潛能，對環境保護有益亦符合永續發展之需求。

關鍵字

垃圾焚化混合灰 ； CMP污泥 ； 水泥砂漿 ； 抗壓強度 ； 卜作嵐反應

並列摘要

Fly- and scrubber-ash from a municipal solid waste incinerator (MSWI) were mixed uniformly in their production weight proportions, then, the mixture was added to the chemical mechanical polishing (CMP) sludge with the half weight of ash-mix and melted to form a glassy slag (call MSWI-CMP slag). The slag-blended cement mortar (SBCM) specimens were manufactured with 0, 5, 10, 20 and 30 wt.% of the cement replaced by slag powder, and the molded specimens were for compressive strength testing. The test result reveal the compressive strength of SBCM specimens were close to or higher than those of ordinary Portland cement mortar (OPCM) in early curing age, and were 14-33% higher than those of the OPCM specimens after curing ages of 14-90 days, the test results exhibit the Pozzolanic reaction induced good performance of strength evolution. This article also investigate the toxicity characteristic leaching procedure (TCLP) test of MSWI-CMP slag, the setting time test and fluidity test of cement mortar. The test result depict the amount of leached heavy metals was far below the EPA'S regulatory threshold. Hence, the MSWI-CMP slag could be partially replace cement in cement mortar, and the MSWI ash-mix and CMP sludge can be recycling as a resource potentially, and that is particularly environmentally friend and compatible with the demands of sustainable development.

並列關鍵字

MSWI fly-ash ； scrubber-ash ； chemical mechanical polishing ； cement mortar ； compressive strength ； Pozzolanic reaction

參考文獻

Ali al-rawas, Amer,Hago, Abdel Wahid,Taha, Ramzi,Al-Kharousi, Khalid(2005).Use of incinerator ash as replacement for cement and sand in cement mortars.Building and Environment.40,1261-1266.

Bertolini, Luca,Carsana, Maddalena,Cassago, Davide,Quadrio, Alessandro,Carsana, Cuzio,Collepardi, Mario(2004).MSWI ashes as mineral additions in concrete.Cement and Concrete Research.34,1899-1906.

Den, W.,Huang, C.(2005).Electrocoagulation for removal of silica nano-particles from chemical –mechanical-planarization wastewater.Colloids Surf.A254,81-89.

Huang, C. M.,Yang, W. F.,Ma, H. W.,Song, Y. R.(2006).The potential of recycling and reusing municipal solid waste incinerator ash in Taiwan.Waste Manage.26,979-987.

Lai, C. L.,Lin, S. H.(2004).Treatment of chemical mechanical polishing wastewater by electrocoagulation: system performances and sludge settling characteristics.Chemosphere.54,235-242.