Evaluation of common indoor air pollutant reduction by a botanical indoor air biofilter system

Ibrahim, Izdihar Zahirah; Chong, Wen Tong; Yusoff, Sumiani; Wang, Chin‐Tsan; Xia, Xiang; Muzammil, Wan Khairul

doi:10.1177/1420326x19882080

Cited by 24 publications

(10 citation statements)

References 35 publications

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“…A recent study suggested the prototype of a botanical biofilter, which comprises of a botanical biofilter containing the horizontally grown plants in growth media, an evaporative medium, and a mechanical ventilation system. This biofilter revealed PM 2.5 , PM 10 , and VOCs removal efficiencies of 54.5%, 65.42%, and 46%, respectively [79]. Another recent study reported that a botanical biofilter using a large-scale indoor species by connecting it to an air handling unit (AHU).…”

Section: Indoor Air Qualitymentioning

confidence: 95%

Phytoremediation: The Sustainable Strategy for Improving Indoor and Outdoor Air Quality

Lee¹,

Jun²,

Zahra

2021

Environments

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Most of the world’s population is exposed to highly polluted air conditions exceeding the WHO limits, causing various human diseases that lead towards increased morbidity as well as mortality. Expenditures on air purification and costs spent on the related health issues are rapidly increasing. To overcome this burden, plants are potential candidates to remove pollutants through diverse biological mechanisms involving accumulation, immobilization, volatilization, and degradation. This eco-friendly, cost-effective, and non-invasive method is considered as a complementary or alternative tool compared to engineering-based remediation techniques. Various plant species remove indoor and outdoor air pollutants, depending on their morphology, growth condition, and microbial communities. Hence, appropriate plant selection with optimized growth conditions can enhance the remediation capacity significantly. Furthermore, suitable supplementary treatments, or finding the best combination junction with other methods, can optimize the phytoremediation process.

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Section: Indoor Air Qualitymentioning

confidence: 95%

Phytoremediation: The Sustainable Strategy for Improving Indoor and Outdoor Air Quality

Lee¹,

Jun²,

Zahra

2021

Environments

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“…Several authors have noted significant PM reductions through the use of active botanical biofilters, where plant selection has been determined to play a significant role. For example, plants with a dense root structure can compress the substrate media, creating a higher pressure drop and more intricate matrix for PM capture and removal from ambient air (Elkamhawy and Jang 2020 ; Ibrahim et al 2021 ; Irga et al 2017a , b ; Pettit et al 2019a , b ).…”

Section: Plants As a Phytoremediation Technologymentioning

confidence: 99%

Phytoremediation for the indoor environment: a state-of-the-art review

Matheson

Fleck

Irga

et al. 2023

Rev Environ Sci Biotechnol

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Poor indoor air quality has become of particular concern within the built environment due to the time people spend indoors, and the associated health burden. Volatile organic compounds (VOCs) off-gassing from synthetic materials, nitrogen dioxide and harmful outdoor VOCs such benzene, toluene, ethyl-benzene and xylene penetrate into the indoor environment through ventilation and are the main contributors to poor indoor air quality with health effects. A considerable body of literature over the last four decades has demonstrate the removal of gaseous contaminants through phytoremediation, a technology that relies on plant material and technologies to remediate contaminated air streams. In this review we present a state-of-the-art on indoor phytoremediation over the last decade. Here we present a review of 38 research articles on both active and passive phytoremediation, and describe the specific chemical removal efficiency of different systems. The literature clearly indicates the efficacy of these systems for the removal of gaseous contaminants in the indoor environment, however it is evident that the application of phytoremediation technologies for research purposes in-situ is currently significantly under studied. In addition, it is common for research studies to assess the removal of single chemical species under controlled conditions, with little relevancy to real-world settings easily concluded. The authors therefore recommend that future phytoremediation research be conducted both in-situ and on chemical sources of a mixed nature, such as those experienced in the urban environment like petroleum vapour, vehicle emissions, and mixed synthetic furnishings off-gassing. The assessment of these systems both in static chambers for their theoretical performance, and in-situ for these mixed chemical sources is essential for the progression of this research field and the widespread adoption of this technology.

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“…Many techniques are used to eliminate air pollutants like chemicals and microfilters, but they are costly and require maintenance. − Biofiltration is the alternative technique, which can be used to remove air pollutants emitted mainly from organic product-based companies, for example, paint industries, pharmaceutical industries, and also by vehicles, municipal sources, substance adjustment landfill-related procedures, delivering plants, synthetic assembling processes, shops that print, flavors and scents, espresso and cocoa broiling, sewage treatment (smell evacuation), covering processes, fertilizing the soil, food handling, animals ranches, and foundries. − Paint application and manufacturing companies utilize solvents which are the major, about 60%, pollutant generator. It is economical to remove pollutants and requires less maintenance. − …”

Section: Introductionmentioning

confidence: 99%

Air Pollutants Removal Using Biofiltration Technique: A Challenge at the Frontiers of Sustainable Environment

et al. 2022

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Air pollution is a central problem faced by industries during the production process. The control of this pollution is essential for the environment and living organisms as it creates harmful effects. Biofiltration is a current pollution management strategy that concerns removing odor, volatile organic compounds (VOCs), and other pollutants from the air. Recently, this approach has earned vogue globally due to its low-cost and straightforward technique, effortless function, high reduction efficacy, less energy necessity, and residual consequences not needing additional remedy. There is a critical requirement to consider sustainable machinery to decrease the pollutants arising within air and water sources. For managing these different kinds of pollutant reductions, biofiltration techniques have been utilized. The contaminants are adsorbed upon the medium exterior and are metabolized to benign outcomes through immobilized microbes. Biofiltration-based designs have appeared advantageous in terminating dangerous pollutants from wastewater or contaminated air in recent years. Biofiltration uses the possibilities of microbial approaches (bacteria and fungi) to lessen the broad range of compounds and VOCs. In this review, we have discussed a general introduction based on biofiltration and the classification of air pollutants based on different sources. The history of biofiltration and other mechanisms used in biofiltration techniques have been discussed. Further, the crucial factors of biofilters that affect the performance of biofiltration techniques have been discussed in detail. Finally, we concluded the topic with current challenges and future prospects.

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Evaluation of common indoor air pollutant reduction by a botanical indoor air biofilter system

Cited by 24 publications

References 35 publications

Phytoremediation: The Sustainable Strategy for Improving Indoor and Outdoor Air Quality

Phytoremediation: The Sustainable Strategy for Improving Indoor and Outdoor Air Quality

Phytoremediation for the indoor environment: a state-of-the-art review

Air Pollutants Removal Using Biofiltration Technique: A Challenge at the Frontiers of Sustainable Environment

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