| 调理剂Fenton/CaO对深度脱水市政污泥燃烧特性的影响 |
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| 引用本文： | 徐启智,梁嘉林,张斯玮,黄锦佳,戴永康,黄绍松,郑莉,孙水裕.调理剂Fenton/CaO对深度脱水市政污泥燃烧特性的影响[J].环境科学学报,2018,38(7):2711-2720. |
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| 作者姓名： | 徐启智 梁嘉林 张斯玮 黄锦佳 戴永康 黄绍松 郑莉 孙水裕 |
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| 作者单位： | 广东工业大学环境科学与工程学院;广东工业大学资源综合利用与清洁生产省教育厅重点实验室;广东环境保护工程职业学院 |
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| 基金项目： | 广东省科技计划项目（No.2016A040403068，2016A020221034）；广东省环保厅专项资金项目（2017）；佛山市科技创新项目（No.2016AG100482）；广东高校优秀青年创新人才培养计划（育苗工程）项目（No.2013LYM0026） |
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| 摘 要： | 采用超高压板框压滤法进行污泥脱水,制备了3种Fenton/Ca O调理的深度脱水污泥.同时,利用热重分析仪(TG/DTG)研究了Fenton/Ca O投加量和升温速率对深度脱水市政污泥燃烧特性的影响,获得其燃烧特性指数,并建立了燃烧动力学方程.研究表明,Fenton/Ca O调理污泥燃烧过程中有3个失重阶段:水分的析出、挥发分的析出与燃烧、部分挥发分与固定碳的燃尽.与原泥(S1)对比研究可知,调理污泥S2(调理剂折算量Fe2+/H2O2/Ca2+=30/30/70 mg·g-1DS)、S3(调理剂折算量Fe2+/H2O2/Ca2+=50/30/100 mg·g-1DS)的燃尽指数Cb较小,S4(调理剂折算量Fe2+/H2O2/Ca2+=70/30/120 mg·g-1DS)的燃尽指数Cb较大,说明调理剂投加较多时(S4)有利于污泥的燃尽.而3种调理污泥的挥发分释放特性指数D分别增大为原泥的1.10、1.97、1.73倍,可燃性指数C及综合燃烧特性指数S分别降低为原泥的78%~95%、52%~75%,说明增加调理剂用量提升了污泥的初期燃尽率,却降低了污泥的整体燃烧性能.调理污泥的对比研究可知,S3的燃烧特性指数(D、C、S)最大,说明适量的调理剂投加(S3)能在调理污泥中获得最佳的燃烧性能.利用Ozawz-Flynn-Wall法和Kissinger-Akahira-Sunose法计算得到原泥S1及调理污泥(S2、S3、S4)燃烧的质量平均表观活化能,发现调理后污泥的质量平均表观活化能Em1(阶段Ⅰ)下降,但Em2(阶段Ⅱ)提高,整体活化能Em下降;S3获得最低的Em.
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| 关 键 词： | Fenton/CaO 污泥泥饼 深度脱水 燃烧特性 动力学 |
| 收稿时间： | 2017/12/14 0:00:00 |
| 修稿时间： | 2018/1/29 0:00:00 |
Effects of Fenton/CaO as conditioner on the combustion characteristics of deeply dewaterd sewage sludge |
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| XU Qizhi,LIANG Jialin,ZHANG Siwei,HUANG Jinji,DAI Yongkang,HUANG Shaosong,ZHENG Li and SUN Shuiyu.Effects of Fenton/CaO as conditioner on the combustion characteristics of deeply dewaterd sewage sludge[J].Acta Scientiae Circumstantiae,2018,38(7):2711-2720. |
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| Authors: | XU Qizhi LIANG Jialin ZHANG Siwei HUANG Jinji DAI Yongkang HUANG Shaosong ZHENG Li and SUN Shuiyu |
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| Affiliation: | 1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006,1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006,1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006,1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006,1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006,1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006,1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006 and 1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006;2. Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216;3. Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, Guangdong University of Technology, Guangzhou 510006 |
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| Abstract: | |
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| Keywords: | Fenton/CaO sludge cake deeply dewatering combustion characteristics kinetics |
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