城市垃圾焚烧飞灰物化特性动态分析
|
摘要
以某一垃圾焚烧电厂2017年内不同时期产生的焚烧飞灰为研究对象,对其进行较系统性、动态的物化特性分析。结果表明:焚烧飞灰粉体白度约46、密度约1.88 g/cm~3、颗粒的粒径D50、D90分别约为25μm与76μm。粉体颗粒无固定的形态结构,其中可见针状结构、板片结构与方柱状颗粒。焚烧飞灰中存在氯化钾(KCl)、氯化钠(NaCl)、氧化钙(CaO)、碳酸钙(CaCO_3)等,其主体元素含量分布特征为钙(Ca)>氯(Cl)>钠(Na)>钾(K)>硅(Si)>锌(Zn),同时垃圾焚烧飞灰中含多种重金属元素,且重金属在所检样品中的量化顺序是铅(Pb)>铜(Cu)>铬(Cr)>镉(Cd)。本课题工作可为垃圾焚烧飞灰固废的多元化、绿色化、资源化的利用提供积极的技术支撑与理论指导。
The municipal waste incineration fly ashs obtained from a refuse incineration power plant in the different period in 2017 year were systemic and dynamic analysis. The results show that the white degree of incineration fly ash is about 46, the density of which is about 1.88 g/cm~3. The particle diameter D50 and D90 are about 25 microns to 76 microns, respectively. The micstructure of incineration fly ash display unfixed form, but in which there are some special particles with acicular, board and square column morphology. Incineration fly ash is mainly composed by potassium chloride(KCl), sodium chloride(NaCl), calcium oxide(CaO), calcium carbonate(CaCO_3). The content of main element in the material distribution has the characteristic, namely calcium(Ca) > chloride(Cl)> sodium(Na)> potassium(K) > Si > Zi. The municipal waste incineration fly ash contains lead(Pb), copper(Cu), chromium(Cr) and cadmium(Cd) and other heavy metals and have the material distribution of lead(Pb)> copper(Cu) > chromium(Cr)> cadmium(Cd). This work will actively provide technical support and theoretical guidance for the diversified,green resource utilization for the resource of municipal waste incinerator fly ash.
The municipal waste incineration fly ashs obtained from a refuse incineration power plant in the different period in 2017 year were systemic and dynamic analysis. The results show that the white degree of incineration fly ash is about 46, the density of which is about 1.88 g/cm~3. The particle diameter D50 and D90 are about 25 microns to 76 microns, respectively. The micstructure of incineration fly ash display unfixed form, but in which there are some special particles with acicular, board and square column morphology. Incineration fly ash is mainly composed by potassium chloride(KCl), sodium chloride(NaCl), calcium oxide(CaO), calcium carbonate(CaCO_3). The content of main element in the material distribution has the characteristic, namely calcium(Ca) > chloride(Cl)> sodium(Na)> potassium(K) > Si > Zi. The municipal waste incineration fly ash contains lead(Pb), copper(Cu), chromium(Cr) and cadmium(Cd) and other heavy metals and have the material distribution of lead(Pb)> copper(Cu) > chromium(Cr)> cadmium(Cd). This work will actively provide technical support and theoretical guidance for the diversified,green resource utilization for the resource of municipal waste incinerator fly ash.
引文
[1] 2016年全国大、中城市固体废物污染环境防治年报[J].中国资源综合利用, 2016,34(11):14-20.
[2]张英民,尚晓博,李开明,等.城市生活垃圾处理技术现状与管理对策[J].生态环境学报, 2011, 20(2):389-396.
[3]罗宇,石英.垃圾焚烧发电厂飞灰稳定化处理技术研究进展与展望[J].热力发电, 2004, 33(2):69-72.
[4]张庆红.我国目前垃圾焚烧处理现状[J].锅炉制造,2006(3):41-42.
[5]张瑞娜,赵由才,许实:生活垃圾焚烧飞灰的处理处置方法[J].苏州科技学院学报(工程技术版), 2003, 16(1):22-29.
[6]熊祖鸿,范根育,鲁敏,等.垃圾焚烧飞灰处置技术研究进展[J].化工进展, 2013, 32(7):1678-1684.
[7]黄本生,刘清才,王里奥.垃圾焚烧飞灰综合利用研究进展[J].环境工程学报, 2003, 4(9):12-15.
[8]陶景忠,田涛.城市生活垃圾焚烧飞灰资源化利用研究[J].污染防治技术, 2015(6):25-28.
[9]夫振,周少奇,黎强,等.垃圾焚烧飞灰对染料(亚甲基蓝)的吸附性能[J].环境工程学报, 2013, 7(10):4072-4078.
[10]张晓萱,席北斗,王琪,等.垃圾焚烧飞灰熔融过程中重金属的固化机理以及熔渣浸出特性的研究[J].环境污染与防治, 2005, 27(5):330-332.
[11]田书磊,王琪,汪群慧,等.垃圾焚烧飞灰熔融过程中重金属固化特性[J].哈尔滨工业大学学报, 2008, 40(10):1576-1580.
[12]遇鑫遥,施加标,孟月东,等.热等离子体技术处理危险废物研究进展[J].环境污染与防治(网络版), 2008(2):1-8.
[13]徐颖,陈玉,冯岳阳.重金属螯合剂处理垃圾焚烧飞灰的稳定化技术[J].化工学报, 2013, 64(5):1833-1839.
[14]薛璐,徐颖,谢志钢,等.生物淋滤技术处理垃圾焚烧飞灰中的重金属[J].环境保护科学, 2011, 37(3):1-4.
[2]张英民,尚晓博,李开明,等.城市生活垃圾处理技术现状与管理对策[J].生态环境学报, 2011, 20(2):389-396.
[3]罗宇,石英.垃圾焚烧发电厂飞灰稳定化处理技术研究进展与展望[J].热力发电, 2004, 33(2):69-72.
[4]张庆红.我国目前垃圾焚烧处理现状[J].锅炉制造,2006(3):41-42.
[5]张瑞娜,赵由才,许实:生活垃圾焚烧飞灰的处理处置方法[J].苏州科技学院学报(工程技术版), 2003, 16(1):22-29.
[6]熊祖鸿,范根育,鲁敏,等.垃圾焚烧飞灰处置技术研究进展[J].化工进展, 2013, 32(7):1678-1684.
[7]黄本生,刘清才,王里奥.垃圾焚烧飞灰综合利用研究进展[J].环境工程学报, 2003, 4(9):12-15.
[8]陶景忠,田涛.城市生活垃圾焚烧飞灰资源化利用研究[J].污染防治技术, 2015(6):25-28.
[9]夫振,周少奇,黎强,等.垃圾焚烧飞灰对染料(亚甲基蓝)的吸附性能[J].环境工程学报, 2013, 7(10):4072-4078.
[10]张晓萱,席北斗,王琪,等.垃圾焚烧飞灰熔融过程中重金属的固化机理以及熔渣浸出特性的研究[J].环境污染与防治, 2005, 27(5):330-332.
[11]田书磊,王琪,汪群慧,等.垃圾焚烧飞灰熔融过程中重金属固化特性[J].哈尔滨工业大学学报, 2008, 40(10):1576-1580.
[12]遇鑫遥,施加标,孟月东,等.热等离子体技术处理危险废物研究进展[J].环境污染与防治(网络版), 2008(2):1-8.
[13]徐颖,陈玉,冯岳阳.重金属螯合剂处理垃圾焚烧飞灰的稳定化技术[J].化工学报, 2013, 64(5):1833-1839.
[14]薛璐,徐颖,谢志钢,等.生物淋滤技术处理垃圾焚烧飞灰中的重金属[J].环境保护科学, 2011, 37(3):1-4.