掺烧比对污泥与垃圾协同焚烧的影响  

EFFECT OF BLENDING RATIO ON CO-INCINERATION OF SLUDGE AND GARBAGE

作　　者：邓玲 苏伟 柴华 孙宇佳 Deng Ling;Su Wei;Chai Hua;Sun Yujia(China Environmental Protection Group Co.,Ltd.,Beijing 100082;School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083;HBIS Group Co.,Ltd.,Shijiazhuang 050023,Hebei)

机构地区：[1]中国环境保护集团有限公司,北京100082 [2]北京科技大学能源与环境工程学院,北京100083 [3]河钢集团有限公司,河北石家庄050023

出　　处：《河北冶金》2024年第1期74-77,共4页Hebei Metallurgy

摘　　要：污泥作为城市污水处理的副产物,是一种产量高、危害大的固体废物。目前针对市政污泥的处置主要有堆肥、填埋和焚烧3种方式。随着污泥焚烧技术的深入发展,该处理方式以废物减量化程度高、能量可回收,同时能有效降低病原微生物和有机污染物质的危害等优势,已成为污泥处置的主要方法。本文结合污泥协同垃圾焚烧实际运行数据,采用理论计算、理化检测等方法,研究了掺烧比对烟气和飞灰排放指标的影响。结果表明,当掺烧比在10%左右时,烟气排放指标完全能满足GB18485-2014排放标准的要求,但SO 2指标多次超欧盟标准。每吨绝干污泥焚烧后约产生0.4 t的灰渣,其中灰量占60%,渣量占40%。当掺烧比提高时,飞灰比例增加,但飞灰比例基本在6%左右波动。As a by-product of urban sewage treatment,sludge is a kind of solid waste with high yield and great harm.At present,there are three main ways to dispose of municipal sludge:composting,landfill and incineration.With the in-depth development of sludge incineration technology,this treatment method has become the main method of sludge disposal with the advantages of high waste reduction,energy recovery,and effective reduction of the hazards of pathogenic microorganisms and organic pollutants.In this paper,combined with the actual operation data of sludge co-waste incineration,the influence of blending ratio on flue gas and fly ash emission indexes was studied by using theoretical calculation,physical and chemical testing methods.The results show that when the blending ratio is about 10%,the flue gas emission index can fully meet the requirements of the GB18485-2014 emission standard,but the SO 2 index exceeds the EU standard for many times.After incineration,about 0.4 t of ash is produced per ton of absolute sludge incineration,of which the ash content accounts for 60%and the slag content accounts for 40%.When the blending ratio increases,the proportion of fly ash increases,but the proportion of fly ash basically fluctuates around 6%.

关 键 词：污泥 生活垃圾 焚烧 掺烧比 烟气 飞灰 

分 类 号：X756[环境科学与工程—环境工程]