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TO INCREASE THE EFFICIENCY OF INDOOR PLANTS TO REMOVE VOC'S/HCHO IN INDOOR ENVIRONMENT

Astha Astha

Abstract


Indoor Air Pollution is the term used to describe the number of contaminants in the air inside a building from sources such as cigarette smoking, fuel combustion for heating or cooking, certain wallboards, carpets, or insulation as well as the geology of the area (radon in soil or rocks beneath the structure).

With the onset of the energy crisis, changes in the building's design owing to energy-efficient strategy, a confined space for house and workplace is provided which reduce the air exchange rate (AER) and increase indoor air pollution.

Formaldehyde is a common hazardous indoor air pollutant which recently raised public concerns due to its well-known carcinogenic effects on human.

 The aim of this study was to investigate how a potted plant-soil system increases the ability in formaldehyde removal from a poor ventilated indoor air to promote dwellers health.

At present, there are some techniques for eliminating formaldehyde from the indoor air such as biological methods, adsorption on activated carbon fibers, photocatalytic oxidation, and biofiltration; nevertheless, none of them are fully satisfactory due to low concentrations as well as the volatile characteristic of this chemical. Beside this, increasing the ventilation rate is difficult and not economical for public. Phytoremediation has attracted much consideration in recent decades probably due to its environmental, economic and social benefits. In addition, it is potential to help zero emission in both traditional and new buildings.

For this purpose, we used one of the common interior plants from the fern species (Nephrolepis obliterata), inside a Plexiglas chamber under controlled environment. Entire plant removal efficiency and potted soil/roots contribution were determined by continuously introducing formaldehyde vapor concentration.


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References


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DOI: https://doi.org/10.37628/ijpb.v9i1.855

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