DSP稳定化铅污染土壤研究  

Study on Stabilization of the Lead Contaminated Soil by DSP

作　　者：徐凤[1] 杨熹[1] 郑佳[1] 

机构地区：[1]重庆市固体废物管理中心,重庆401147

出　　处：《广东化工》2015年第11期22-23,29,共3页Guangdong Chemical Industry

摘　　要：文章利用磷酸氢二钠(DSP)作为稳定剂处理三种不同含铅量污染土壤,以满足生活垃圾填埋场入场标准为目标,考察不同DSP添加量和稳定化处理时间以确定最佳处理工艺条件。结果表明:经过为期15天处理含铅量为6000、3000和1500 mg/kg的污染土壤,DSP添加量与其对应含铅土壤比例分别为30∶1、10∶1和4∶1,其土壤浸出液中铅浓度分别为0.25、0.24和0.22 mg/L,满足生活垃圾填埋场入场标准。The paper is aimed to use the sodium hydrogen phosphate （DSP） as stabilizer to deal with lead-polluted soil in different lead concentration and examine the different molar ratios of DSP and processing time to determine the optimum process conditions. The result indicates that dispose the lead-polluted soil which contains lead 6000, 3000 and 1500 mg/kg after fifteen days process, the ratios of DSP and contain lead soil are 30 ： 1, 10 ; 1 and 4 ： 1, respectively; corresponding to the leaching concentration of leads ion are 0.25, 0.24 and 0.22 mg/L, and meet the entry criteria of household garbage landfill site.

关 键 词：铅 污染土壤 磷酸氢二钠 稳定化 

分 类 号：X506[环境科学与工程—环境工程]