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首页> 外文会议>12th international inorganic-bonded fiber composites conference >STABILIZATION OF FLY-ASH CONTAINING HEAVY METALS BY ALKALI ACTIVATION
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STABILIZATION OF FLY-ASH CONTAINING HEAVY METALS BY ALKALI ACTIVATION

机译：碱活化稳定含粉煤灰的重金属

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摘要

The immobilization of waste materials is receiving increasing attention from scientists all over the world.rnAlkali activation of fly ash or blast furnace slag is a method that successfully stabilizes these waste materialsrnin a solidified matrix. Fly ash (FA) from Czech power plant Po?erady and blast furnace slag (BFS) fromrnOstrava contain except the mains compounds also small amount of heavy metals – Ba~(2+), Ni~(2+), Zn~(2+), Cu~(2+), Cr.rnThe aim of this work is to find out the ability of aluminosilicate matrix (ASM) and matrix reinforced byrnwollastonite micro-fibre to stabilize and immobilize heavy metals which originate from raw materials.rnAmount of heavy metals in raw materials was investigated by XRF. Phase composition was determined byrnXRD. The ability of matrix to fix and immobilize heavy metals was investigated by leaching tests. These testsrnwere based on the law 383/2001 Sb. and ?SN EN – 12457- 4. The concentration of heavy metals in eluaternwas analysed by ICP-MS. The addition of wollastonite improved the ability of alkali activated AMSs to fixrnBa, Zn and Ni. Fixation of Cu and Cr wasn't influenced by addition of wollastonite.
机译：废料的固定化越来越受到世界各地科学家的关注。粉煤灰或高炉矿渣的碱活化是一种成功地将这些废料稳定在固化基质中的方法。捷克发电厂波拉迪的粉煤灰（FA）和俄斯特拉发的高炉矿渣（BFS）除主要化合物外还含有少量重金属-Ba〜（2 +），Ni〜（2 +），Zn〜（2 +），Cu〜（2+），Cr XRF研究了原材料中的重金属。通过rnXRD确定相组成。通过浸出试验研究了基质固定和固定重金属的能力。这些测试基于383/2001 Sb法律。 ？SN EN – 12457- 4.通过ICP-MS分析了Eluatern中的重金属浓度。硅灰石的添加提高了碱活化的AMS固定rnBa，Zn和Ni的能力。硅灰石的添加不影响铜和铬的固定。

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