Volatile organic compounds removal by means of a felt-based living wall to improve indoor air quality

Suárez-Cáceres, Gina Patricia; Fernández-Cañero, Rafael; Fernández-Espinosa, Antonio José; Oliva, Sabina Rossini; Franco-Salas, Antonio; Pérez-Urrestarazu, Luis

doi:10.1016/j.apr.2020.11.009

Cited by 24 publications

(10 citation statements)

References 43 publications

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“…Volatile organic compounds (VOCs)are an important class of indoor air pollutants because they cause a wide range of harmful effects on human health, even at low concentrations. Despite this, currently available techniques for removing VOCs from indoor air are often ineffective, especially when it comes to gaseous compounds [21].…”

Section: Removal Of Volatile Organic Compounds (Vocs) From Indoor Air...mentioning

confidence: 99%

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Tkachenko,

Mileikovskyi,

Konovaliuk

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Phytofiltration is the most sustainable way to achieve a better quality of inlet air in buildings in a polluted environment. But they don’t take into account the biorhythms of plants and pollute the inlet air with CO2 during breathing only time. We collected and analysed data about the biorhythms of plants. As a result, a new bi-directional phytofilter was offered for cleaning and oxygenation of the inlet ventilation air, and also to protect the environment by cleaning the exhaust air from different pollutants. The device has spaces with shifted illumination rhythms and a valve system. A controller directs the inlet air to the space(s), where plants release CO2. The outlet air runs through other spaces. Literature data show that in the less favourable case, the CO2 and oxygen emissions are balanced per day without overall CO2 gain to the environment. When plants are growing, they sequestrate CO2 to catch greenhouse gas emissions. Either natural light, artificial light, or a combination of the two can be used. While the second option simply demands one plant metabolism type, the first option needs a combination of CAM metabolism and other plants

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Section: Removal Of Volatile Organic Compounds (Vocs) From Indoor Air...mentioning

confidence: 99%

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Tkachenko,

Mileikovskyi,

Konovaliuk

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The polluted air will actively pass through the area with high biological activity. In this area, the pollutants will be neutralised by the biological process [8]. The combined application of biotechnology, environmental engineering and horticultural science has led to the growth of botanical air filters, as a promising avenue of research for the bioremediation of indoor air.…”

Section: Introductionmentioning

confidence: 99%

“…Apart from botanical biofiltration, the air conditioning unit is commonly used to improve the IAQ in indoor environments. However, this approach has some underlying disadvantages, such as the withdrawal of outdoor air might contain pollutants [8]. Consequently, the air supplied into the indoor environment is also contaminated.…”

Section: Introductionmentioning

confidence: 99%

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Small-scale botanical in enhancing indoor air quality: A bibliometric analysis (2011-2020) and short review

Tan

Wong²,

Kek³

et al. 2022

PROGEE

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Poor indoor air quality (IAQ) has developed a positive relationship with human health risks. Recently, research findings reported that the pollution level of indoor air could be 2 – 5 times higher than the outdoor air. In some studies, the poor IAQ could reach up to 100 times or more in a natural/ mechanical ventilated building. IAQ depends heavily on the ambient air quality and pollutants/ contaminants produced by household activities. Poor IAQ could lead to various health issues, i.e., asthma, lung cancer, dizziness, fatigue, headaches, etc. One of the possible solutions to overcome the poor IAQ problem is the utilisation of indoor botanical to improve the IAQ. The phytoremediation of botanical is an affordable and environmentally friendly approach to purify the polluted indoor air. Although there is no established recommendation for determining the best indoor botanical in improving the IAQ, many studies have revealed the ability of specific indoor botanicals to remove pollutants/ contaminants. This paper presents the bibliometric analysis and short review based on 79 publications issued in 2011 – 2021. Those articles were extracted from the Web of Science database. Based on the analysis, the number of publications has increased significantly starting from the year 2017. Indoor Air was identified as one of the top productive journals for this research topic.

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“…There is often limited space indoors to provide the amount of vegetation needed to improve air quality. Thus, living walls can be considered as a viable solution [18]. They also contribute to improving the aesthetical component and offer psychological benefits associated with indoor vegetation [19].…”

Section: Introductionmentioning

confidence: 99%

Removal of Volatile Organic Compounds by Means of a Felt-Based Living Wall Using Different Plant Species

Suárez-Cáceres

Pérez-Urrestarazu

2021

Sustainability

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Poor indoor quality affects people’s health and well-being. Phytoremediation is one way in which this problem can be tackled, with living walls being a viable option for places with limited space. The aim of this study was to evaluate the efficiency of five plant species in a living wall to remove Volatile Organic Compounds (VOCs) and to identify whether the type of pollutant has any influence. An enclosed chamber was used to add the contaminants n-hexane and formaldehyde independently. Total VOCs were measured for three days in two scenarios: (1) empty chamber, and (2) chamber with living wall. Five living walls were prepared, each with three plants of the same species: Spathiphyllum wallisii, Philodendron hederaceum, Ficus pumila, Tradescantia pallida, and Chlorophytum comosum. There was no correlation between leaf area/fresh weight/dry weight and the contaminant reduction. In general, all five species were more efficient in reducing TVOCs when exposed to formaldehyde than to n-hexane. Chlorophytum comosum was the most efficient species in reducing the concentration of TVOCs for both contaminants, Spathiphyllum wallisii being the least efficient by far.

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Volatile organic compounds removal by means of a felt-based living wall to improve indoor air quality

Cited by 24 publications

References 43 publications

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Small-scale botanical in enhancing indoor air quality: A bibliometric analysis (2011-2020) and short review

Removal of Volatile Organic Compounds by Means of a Felt-Based Living Wall Using Different Plant Species

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