脱水污泥掺烧比例对垃圾焚烧烟气污染物浓度、运行效能及副产物的影响

王浩; 钟阳; 肖思华; 袁维芳; 宋晓薇

doi:10.13205/j.hjgc.202607003

脱水污泥掺烧比例对垃圾焚烧烟气污染物浓度、运行效能及副产物的影响

doi: 10.13205/j.hjgc.202607003

王浩¹,
钟阳^1,2,
肖思华¹,
袁维芳¹,
宋晓薇^3, ,

1. 广东省广业环保产业集团有限公司, 广州 510030;
2. 珠海科创环境资源有限公司, 广东珠海 519090;
3. 广西壮族自治区环境保护科学研究院, 南宁 530022

基金项目:

广东省重点领域研发计划项目“市政污泥减量及资源化利用关键技术研究及示范”（2019B110209004）

详细信息

作者简介:
王浩（1987—），男，高级工程师，主要研究方向为市政污水与污泥处理技术。jasson1124@163.com

通讯作者:
宋晓薇（1988—），女，高级工程师，主要研究方向为市政污水处理、污泥资源化利用技术。78441085@qq.com

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出版历程
- 收稿日期: 2026-02-27
- 网络出版日期: 2026-09-01

Effect of co-firing rate on dewatered sludge and municipal solid waste incineration： pollutants emissions， operational performance and byproducts

1. Guangdong Guangye Environmental Protection Industry Group Co., Ltd., Guangzhou 510030, China;
2. Zhuhai Kechuang Environmental Resources Co., Ltd. Zhuhai 519090, China;
3. Guangxi Research Academy of Environmental Sciences, Nanning 530022, China

摘要

摘要: 市政污泥与生活垃圾协同焚烧是污泥处置的可行技术路线之一。研究评估了不同污泥掺烧比例（0%、5%、10%）对生活垃圾发电厂烟气污染物排放、运行效能及焚烧副产物特性的影响。结果表明：在所有掺烧比例下，SO₂、NO _x 、CO、HCl、颗粒物及二噁英浓度均满足GB 18485—2014《生活垃圾焚烧污染控制标准》限值，随着污泥掺烧比例从5%升至10%，除NO _x和HCl外，其余烟气污染物浓度均有所升高。掺烧比例为5%时，可获得试验条件下的最优运行效能，此时风机流量、氨水及石灰消耗量均降至最低。相比于掺烧比例为5%，污泥掺烧量10%导致烟气量、风机流量、氨水与石灰消耗量均有所升高。蒸汽产量从不掺烧时的2.778 t/t，降至2.358 t/t（掺烧比例5%）和2.117t/t（掺烧比例10%），说明发电效率随着污泥掺烧比例的升高而降低。飞灰浸出毒性分析结果显示，Zn、Pb浸出浓度显著下降，而Hg、As、Ba、Se略有上升，但均远低于限值。该研究证实机械脱水污泥（含水率50%~60%）不经热干化直接协同焚烧在技术上是可行的，5%的掺烧比例为兼顾运行经济性与系统效率的最优掺烧比例。
- 污泥协同焚烧 /
- 掺烧比例 /
- 运行效能 /
- 污染物排放 /
- 飞灰浸出毒性
Abstract: Co-firing municipal sludge with municipal solid waste （MSW） provides a viable solution for sludge disposal. This study evaluated the effect of sludge co-firing rate （0%， 5%， and 10%） on flue gas pollutant emissions， operational performance， and incineration byproduct characteristics in a waste-to-energy plant. The results showed that at under all co-firing rates， the concentrations of SO₂， NO _x， CO， HCl， particulate matter， and dioxins complied with the limits specified in the Standard for Pollution Control on Municipal Solid Waste Incineration （GB 18485—2014）. As the co-firing rate increased from 5% to 10%， concentrations of all flue gas pollutants except NO _x and HCl exhibited an upward trend.The optimal operational performance under the test conditions was achieved at a 5% co-firing rate， when the flue gas volume， fan volume， and ammonia and lime consumption were minimized. Compared to the 5% rate， increasing the co-firing rate to 10% resulted in elevated flue gas volume， fan volume， and reagent consumption. Steam production decreased from 2.778 t/t （0% co-firing rate） to 2.358 t/t （5% co-firing rate） and 2.117 t/t （10% co-firing rate）， indicating a reduction in power generation efficiency with increasing sludge co-firing rates. Leaching toxicity analysis of fly ash revealed significant reductions in the leached concentrations of Zn and Pb， while those of Hg， As， Ba， and Se showed slight increases， all remaining well below regulatory limits. This study confirms the technical feasibility of directly co-firing mechanically dewatered sludge （with a moisture content of 50% to 60%） without thermal drying. A 5% co-firing rate is identified as the optimal balance between operational economy and system efficiency.
- sludge co-incineration /
- co-firing rate /
- operational performance /
- pollutants emission /
- fly ash leaching toxicity

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