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硫氨磷基阻滞剂对飞灰特性的影响及对二噁英的阻滞效果

丁佳敏,  陆胜勇,  林晓青,  彭亚旗,  何垚

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文章导航 > 环境工程  > 2022 >  40(7): 88-93,17
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引用本文: 丁佳敏, 陆胜勇, 林晓青, 彭亚旗, 何垚. 硫氨磷基阻滞剂对飞灰特性的影响及对二噁英的阻滞效果[J]. 环境工程, 2022, 40(7): 88-93,17. doi: DOI:10.13205/j.hjgc.202207013
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Citation: DING Jiamin, LU Shengyong, LIN Xiaoqing, PENG Yaqi, HE Yao. INFLUENCE OF S-N-P-INHIBITOR ON FLY ASH CHARACTERISTICS AND PCDD/Fs CONTENT[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(7): 88-93,17. doi: DOI:10.13205/j.hjgc.202207013
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硫氨磷基阻滞剂对飞灰特性的影响及对二噁英的阻滞效果

doi: DOI:10.13205/j.hjgc.202207013

  • 1. 浙江大学 台州研究院, 浙江 台州 318000;

  • 2. 浙江大学 能源工程学院, 杭州 310027;

  • 3. 中国电建集团 华中电力设计研究院, 郑州 450007

基金项目: 

浙江省领雁研发计划(2022C03056)

详细信息
    作者简介:

    丁佳敏(1989-),男,工程师,主要从事垃圾焚烧飞灰无害化资源化研究。dingjiamin@zju.edu.cn

    通讯作者:

    彭亚旗(1992-),男,助理研究生,主要从事固废资源化利用及污染物控制。pengyaqi@zju.edu.cn

INFLUENCE OF S-N-P-INHIBITOR ON FLY ASH CHARACTERISTICS AND PCDD/Fs CONTENT

  • 1. Research Institute of Zhejiang University-Taizhou, Taizhou 318000, China;

  • 2. College of Energy Engineering, Zhejiang University, Hangzhou 310027, China;

  • 3. POWERCHINA Central China Electric Power Engineering Co., Ltd, Zhengzhou 450007, China

摘要

    摘要
  • 摘要: 阻滞剂技术由于操作简单、成本低和效率高等优点,被广泛应用于实际生活垃圾焚烧炉,逐渐成为控制二噁英生成的重要技术之一。选取某台典型循环流化床生活垃圾焚烧炉为研究对象,通过高精度给料设备向余热锅炉两侧喷射硫氨磷基阻滞剂,研究阻滞剂对飞灰物化特性影响及其对二噁英的阻滞效果。结果表明:硫氨磷基阻滞剂对飞灰中的PCDD/Fs有很好的阻滞效果,喷射阻滞剂后飞灰中PCDD/Fs毒性当量从2.31 ng I-TEQ/g降至0.23 ng I-TEQ/g,阻滞率达到90.0%;阻滞剂主要通过减少氯源、改变飞灰粒径及表面特性等实现飞灰中二噁英的高效阻滞。此外,阻滞剂对飞灰中部分重金属有一定的固化作用,其中对Pb固化效果最好,达到49.02%。该成果可为后续硫氨磷基阻滞剂的工业化应用提供技术支撑。
    Abstract: Due to its advantages of simple operation,low cost and high efficiency,inhibitors have been widely used in waste incinerators,and gradually become one of the important technologies to control dioxins.The effect of the inhibitor on fly ash characteristics and the concentration of PCDD/Fs in fly ash was studied by injecting the S-N-P-inhibitor into the heat recovery boiler of a typical circulating fluidized bed waste incinerator with high-precision feeding equipment.The results showed that the inhibitor decreased the content of PCDD/Fs in fly ash remarkably from 2.31 ng I-TEQ/g to 0.23 ng I-TEQ/g,with an inhibition efficiency of 90.0%,which was achieved through reducing the concentration of Cl2 in flue gas,increasing particle size and decreasing the specific surface area of fly ash.In addition,inhibitors also exhibit stabilization function on heavy metals,especially for Pb (with a stabilization rate of 49.02%).This research can provide technical support for the subsequent industrial application of the S-N-P-inhibitor.
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    • 参考文献(27)
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  • 收稿日期:  2021-08-16
  • 网络出版日期:  2022-09-02

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