CAJ | 학술논문

利用热重法对广州5种城市污泥及肇庆市1种污水污泥进行实验研究,并通过 TG-DTG 曲线分析了污泥的燃烧特性。结果表明：整个污泥燃烧可分为水分析出、挥发分析出、挥发分燃烧、焦炭燃烧4个阶段；不同类别污泥的燃烧特性与污水处理厂的工艺、污泥的种类、理化性质有很大关系,其中挥发分的析出和燃烧制约着污泥整个燃烧过程,并且污泥在低温段和高温段的燃烧特性差异较大；随着另一种工业污泥的加入,造纸污泥燃烧峰加宽,燃烧变得均匀,并且造纸污泥燃烧性能得到提高；从燃尽指数Df 和着火指数Di 来看,所研究的6种污泥燃烧性能由高到低依次为KFQ＞LJ＞ZQ＞DTS＞LD＞ZZ,并且广州与肇庆同类污泥燃烧特性无明显差异。
이용열중법대엄주5충성시오니급조경시1충오수오니진행실험연구,병통과 TG-DTG 곡선분석료오니적연소특성。결과표명：정개오니연소가분위수분석출、휘발분석출、휘발분연소、초탄연소4개계단；불동유별오니적연소특성여오수처리엄적공예、오니적충류、이화성질유흔대관계,기중휘발분적석출화연소제약착오니정개연소과정,병차오니재저온단화고온단적연소특성차이교대；수착령일충공업오니적가입,조지오니연소봉가관,연소변득균균,병차조지오니연소성능득도제고；종연진지수Df 화착화지수Di 래간,소연구적6충오니연소성능유고도저의차위KFQ＞LJ＞ZQ＞DTS＞LD＞ZZ,병차엄주여조경동류오니연소특성무명현차이。
Five kinds of sewage sludge from the city of Guangzhou and one sewage sludge from the city of Zhaoqing were investigated by thermogravimetric method and their combustion characteristics were ana-lyzed through TG-DTG curves.It is found that the whole combustion process can be divided into four sta-ges:the water release,volatile release volatile combustion and fixed carbon combustion,among which the volatile release and combustion stage controls the entire combustion process.The combustion characteris-tics of different types of sludge depend on the wastewater treatment process,source and their physical and chemical properties.To some extent,the combustion characteristics of the sludge at low temperatures are different from those at high temperatures.Furthermore,the combustion performance and combustibility of paper mill sludge are improved by adding a certain industrial sewage sludge.In view of burnout index Df and index Di ,the combustion performance of the six sludges are in the order of KFQ>LJ>ZQ>DTS>LD>ZZ,and the combustion behavior of the similar sludge has no significant differences,no matter they are from Guangzhou or Zhaoqing.