Sorbent control of trace metals in sewage sludge combustion and incineration
Sorbent control of trace metals in sewage sludge combustion and incineration
复制标题
DOI：
10.1051/jp4:20030448
复制
发表时间：
2003-05
期刊：
影响因子：
--
通讯作者：
I. Naruse;H. Yao;I. Mkilaha
中科院分区：
文献类型：
--
作者：
I. Naruse;H. Yao;I. Mkilaha
煤和废弃物的燃烧不仅在能源生产方面，而且在环境保护方面都已成为一个重要问题。对替代燃料和废物管理的需求使这两种能源变得重要。但是，两者的利用面临着燃料中杂质微量金属的问题。这些金属通常在燃烧或焚烧过程中形成，导致产生烟雾和随后的颗粒。本文报道了旨在了解痕量金属的形态及其作为颗粒物从燃烧系统中排放的研究。使用下流炉进行的实验和使用铅、铬和镉作为基本金属进行的理论研究表明，它们的形态和随后的排放受燃料的化学成分和物理性质的控制。燃料及其各自化合物的物理、化学和物理性质以及焚化和燃烧系统的操作条件控制着微粒中微量金属的富集。
Coal and wastes combustion have become an important issue not only in terms of energy generation but also environmental conservation. The need for alternative fuels and wastes management has made the two energy sources of importance. However, the utilization of the two is faced with problems of impurity trace metals in the fuel. These metals usually speciate during combustion or incineration leading to generation of fumes and subsequently particles. This paper reports on the study aimed at understanding the speciation of trace metals and their emission from combustion systems as particulates. Experiments carried out using a downflow furnace and theoretical study carried out using lead, chromium and cadmium as basic metals had shown that their speciation and subsequent emission is controlled by both chemical composition and physical properties of the fuel. The physical and chemical and physical properties of the fuel and their respective compounds and the operating conditions of the incineration and combustion system control the enrichment of the particles with trace metals.