Y. Gao, M. Han*. Efficiency evaluation of commonly used methods to accelerate formaldehyde release and removal in households: A field measurement in bedroom. (SCI检索)
发布时间：2024-12-14
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- 论文类型：
- 期刊论文
- 论文编号：
- 112348
- 第一作者：
- 高炀洋
- 通讯作者：
- 韩梦涛
- 发表刊物：
- Building and Environment
- 收录刊物：
- SCI
- 学科门类：
- 工学
- 一级学科：
- 建筑学
- 文献类型：
- J
- 卷号：
- 268
- 期号：
- 15 January 2025
- 关键字：
- Formaldehyde release and removal; Activated carbon; Pothos; Photocatalyst; Ventilation
- DOI码：
- 10.1016/j.buildenv.2024.112348
- 发表时间：
- 2024-11-30
- 影响因子：
- 7.1
- 摘要：
- Modern home interiors are prone to toxic gas emissions, such as formaldehyde, which can lead to respiratory diseases and cancer. Therefore, removing formaldehyde from households is crucial. This study measured the effects of common household factors (air temperature and light intensity) on formaldehyde release, and evaluated the efficiency of various removal methods (pothos, activated carbon, TiO2 suspension, and ventilation) in bedroom. The formaldehyde release rate (K) ratio at different air temperatures: K16 °C:K21 °C:K26 °C = 0.474:1:1.65. Under different light conditions: KUV-125lx:KUV-324lx:KINB-117lx = 2.407:4.099:1. Regarding formaldehyde removal, Pothos initially contributed to a fluctuation in formaldehyde concentration (C) due to vapor release, but had minimal overall impact on removal. Activated carbon and TiO2 suspensions can remove formaldehyde. Activated carbon initially caused C to decline, followed by a subsequent increase. The TiO2 suspension increased humidity, leading to an initial rise in C, followed by a decrease to a stabilized level. Ventilation led to a rapid drop in C, followed by an increase, and finally a decline, due to the dynamic balance between ventilation and K. Comprehensive evaluation of the net formaldehyde removal rate per unit volume (or per unit leaf area for pothos) revealed: activated carbon >TiO2 suspension >pothos. At different air change per hour (ACH), the ratio of time required for formaldehyde removal (t) was tACH-10.89:tACH-54.39:tACH-108.78 = 1.825:1:0.754. Effect size analysis showed that Cohen's d for primary data was >0.5, combined with the K, C, and t results, temperature and UV irradiation were positively correlated with formaldehyde release, while ACH and activated carbon amount were positively correlated with formaldehyde removal.