脱水污泥石灰处理工艺分析  

Process Analysis for Lime Treatment of Dewatered Sludge

作　　者：应梅娟[1] 赵振凤[1] 崔希龙[1] 赵媛 陈小宏 张健 

机构地区：[1]北京城市排水集团有限责任公司,北京100038 [2]万若<北京>环境工程技术有限公司,北京100083

出　　处：《中国给水排水》2011年第18期13-16,共4页China Water & Wastewater

摘　　要：介绍了脱水污泥石灰处理的基本原理、工艺组成以及文献中有关的研究结果和工程经验。污泥石灰处理过程中,氧化钙粉末在混合反应器中与粘稠的污泥快速高效地微观混合,其与污泥中的水反应导致固体总量增加,反应放热使一部分水被蒸发,反应导致的pH值增大和温度升高可起到杀菌效果。在适宜的混合反应技术和工艺参数下,污泥经石灰处理后可形成稳定、疏松和流动性好的物料。此外,还归纳了该工艺的主要影响因素、设计原则及注意事项。The basic principles and process of lime Treatment of dewatered sludge as well as the research results and practical experiences from the literature are introduced. During the lime treatment, the powder of calcium oxide is incorporated into the viscous sludge at a micro scale in the mixing reactor with high speed and high efficiency, which then reacts with water, resulting in an increase of the total dry matter quantity and water evaporation by the released heat. A disinfection of the sludge is achieved by the increased pH value and temperature. With optimized technology and process conditions, a stable, loose material with good flow property can be obtained. Main influencing factors, design principles as well as important engineering aspects are summarized.

关 键 词：石灰处理 污泥干化 污泥固化 污泥杀菌 

分 类 号：X703[环境科学与工程—环境工程]