盆栽吊兰净化空气中的甲醛研究
Study on formaldehyde purification from air by potted spider plant
-
摘要: 采用动态箱模拟法研究了甲醛浓度、气体流量、光照强度对盆栽吊兰净化甲醛速率的影响，初步分析了吊兰茎叶和土壤对甲醛的净化贡献。结果表明，白天净化速率为0.24～1.88 mg/h，夜间净化速率为0.06～1.29 mg/h。吊兰对甲醛具有长期的净化作用，且净化速率白天大于晚上。在吊兰耐受范围内，通过提高入口气体甲醛浓度或流量增加甲醛负荷，均可增加吊兰对甲醛的净化速率。在4 000～12 000 lx范围内，光照强度的变化对净化速率无显著影响。研究还表明，吊兰茎叶白天的净化速率为0.94～7.43 μg/(g·h)，夜间0.15～3.4 μg/(g·h)。土壤（包括吊兰地下部分）净化甲醛的贡献大于吊兰茎叶。Abstract: A dynamic chamber technique was employed to investigate the effects of formaldehyde concentration, light intensity and flow rate on formaldehyde purification from air by potted spider plant. The results showed that the removal rate was 0.24～1.88 mg/h in daytime, while 0.06～1.29 mg/h in nighttime. Formaldehyde in the air could be removed by spider plant in a long-term period, and the removal rate was higher in daytime than that in nighttime. An increase in the removal rate of formaldehyde resulted from elevated inlet formaldehyde loading rate by increasing formaldehyde concentration or flow rate. In the range of 4 000～12 000 lx, the variation of the light intensity had no remarkable effect on the purification. The removal rate of aboveground spider plant was 0.94～7.43 μg/(g·h) in daytime, while 0.15～3.4 μg/(g·h) in nighttime. The soil (including underground spider plant) contribution to formaldehyde purification was higher compared to aboveground spider plant.
-
Key words:
- formaldehyde /
- spider plant /
- purification /
- soil /
- air
-
-
点击查看大图
计量
- 文章访问数: 2525
- HTML全文浏览数: 813
- PDF下载数: 1210
- 施引文献: 0
下载:
