燃煤热电厂掺烧污水厂污泥焚烧灰渣属性鉴别研究  

Study on the characteristics identification of fly ash and cinder generated by coalburned thermal power plant blending sewage sludge

作　　者：孙亚敏 SUN Yamin(Anhui Eco-environmental Monitoring Center,Hefei 230061,China)

机构地区：[1]安徽省生态环境监测中心,安徽合肥230061

出　　处：《安徽建筑大学学报》2021年第1期62-67,共6页Journal of Anhui Jianzhu University

摘　　要：污泥焚烧是具有良好发展前景的污泥减量化技术。依据GB 5085.1-2007至GB 5085.6-2007等相关规范,对合肥东方热电有限公司燃煤锅炉掺烧污泥飞灰和炉渣属性进行了分析和鉴别。鉴别结果表明,燃煤热电厂锅炉掺烧城市生活污水处理厂污泥比例在不高于6.7%的情况下,飞灰和炉渣均不具备危险废物特性,可按照一般工业固体废物进行综合利用。同时,焚烧飞灰和炉渣pH较高,已接近《危险废物鉴别标准腐蚀性鉴别》(GB 5085.1-2007)标准限值,故飞灰和炉渣综合利用时应选择对pH值要求较低的综合利用方式。Sludge burning is considered to be a kind of sludge reduction technology which has good prospects for development.According to standards GB 5085.1-2007—GB 5085.6-2007,the characteristics of ash and cinder generated by coal-burned boilers blended with sludge of Hefei Dongfang Thermal Power Plant are analyzed and identified.It is recognized that when the blended sludge proportion is not higher than 6.7%,the fly ash and cinder from coal-burned boilers blended with sewage sludge does not have the characteristics of hazardous solid waste and can be utilized as general solid waste.However the pH of fly ash and cinder is high and nearly close to the standard limit"Identification standards for hazardous wastes—Identification for corrosivity"(GB 5085.1-2007).The utilization way of ash and cinder with lower requirements for pH should be selected.

关 键 词：污泥 掺烧 飞灰 炉渣 属性鉴别 

分 类 号：X799.3[环境科学与工程—环境工程]