泥浆压滤脱水复合絮凝剂的实验研究  

Experimental Study on Construction Waste Slurry Dehydration Composite Flocculants

作　　者：耿朋飞[1] 孙林柱[2] 

机构地区：[1]河北大学建筑工程学院,保定071002 [2]温州大学建筑与土木工程学院,温州325035

出　　处：《武汉理工大学学报》2014年第5期118-122,144,共6页Journal of Wuhan University of Technology

基　　金：浙江省重大科技专项(2011C13013);温州市科技及重大项目(S20090001;2009S0625);温州建筑节能财政专项

摘　　要：为了研究废弃泥浆的压滤脱水性能,提高泥浆压滤脱水速率,采用正交试验的方法,对不同类型絮凝剂在不同剂量下对泥浆脱水的影响进行正交设计,采用泥浆压滤设备,获得不同加药量时泥浆脱水量与时间的变化关系,通过正交试验极差和因素分析,得到淤泥质粘土废弃泥浆压滤脱水剂的最优组合及其配比。结果表明,阴离子型聚丙烯酰胺絮凝剂与Ca(OH)2、粉煤灰、十二烷基硫酸钠等双组分或多组分压滤脱水剂要比单组分的脱水效果好,在多组分最优组合及最优配比下,泥浆的脱水速率得到快速提高,泥浆的脱水性能得到极大改善,研究结果对于工程中泥浆处理具有重要的技术指导意义。The waste slurry is difficult to transport and conduct due to its high water content.Improving the dehydration property of the cement is the primary task at present.Using the orthogonal experiment,a series of experiments were done to investigate the dewatering performance of the slurry with various types and different volumes of dehydration.The relationship of dehydration water amount and dehydration time was obtained.The optimal components of different dehydration types and best ratios were acquired based on range analysis and factor analysis.The experimental results indicate that the multi-component dehydrations of PAM,lime,fly ash,sodium lauryl ether sulfate have a better dehydration effect than using them singly.The dehydration rate increases obviously and the dewatering property improves distinctly.The results are of great importance in technical guidance for slurry treatment in various engineering.

关 键 词：泥浆 压滤 脱水 絮凝剂 

分 类 号：TU473.1[建筑科学—结构工程]