竹炭净化文物保存微环境空气低浓度氮氧化物  

The Purification of Low Concentration NOx in Cultural Relics Conservation Micro-Environment by Biomass-based Carbon

作　　者：吴燕[1] 修光利[1,2] 王大为[1] 徐方圆[3] 魏华[1] 刘兆辅[1] 张大年[1] 吴来明[3] 解玉林[3] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237 [2]华东理工大学资源能源战略与循环经济研究中心,上海200237 [3]馆藏文物保存环境国家文物局重点科研基地(上海博物馆),上海200050

出　　处：《环境科学与管理》2009年第1期79-83,共5页Environmental Science and Management

基　　金：国家科技部十一五支撑计划;项目编号:2006BAK20B01-5;上海市重点学科支持项目(B506)

摘　　要：围绕竹炭对低浓度氮氧化物的净化效果展开研究，测定了不同NOx浓度、不同流量、不同湿度条件、不同竹炭量对低浓度氮氧化物的净化效果；研究了表面改性生物质的净化效果。结果表明：选用3g以上竹炭，在湿度〈20％，流量控制在1—1．5L／min的情况下对低浓度（150ppb）氮氧化物具有最佳的净化效果；流量控制在2L／min以下（停留时间为1．5s以上），竹炭对NO2净化效果变化不大；活化剂改性和对竹炭进行超声处理后，生物质对NO净化效果有明显的提高作用。The purification of low -concentration nitrogen oxides（NOx） in the cultural relic conservation micro -environment by biomass -based carbon was studied. The NOx removal efficiency was compared under different NOx concentration, different retention time, different humidity, and different bamboo mass. Furthermore, the removal efficiency of modified biomass was also measured. Results showed that the optimum NOx purification effect by bamboo charcoal can be gained with bamboo- based carbon mass more than 3 g, Relative humidity 〈20% and flow rate 1 - 1.5L/min. When flow rate is below 2 L/min（retention time is more than 1.5 s）, the NOx removal rate changes little with the retention time. Both modification by activated solution and ultrasonic pre-treatment can enhance the NOx purification efficiency.

关 键 词：竹炭 低浓度 氮氧化物 博物馆 

分 类 号：X1[环境科学与工程—环境科学] X511