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Brainstorming
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How can we effectively remove indoor formaldehyde?

How can we effectively remove indoor formaldehyde?

Image credit: Amber & Eric Davila

By Deru Xu on Oct 13, 2020

Creative contributions

Formaldehyde neutralizing microbes

[1] https://news.wisc.edu/microbe-eats-formaldehyde/

by Darko Savic on Oct 13, 2020

Shubhankar Kulkarni a month ago
Formaldehyde will usually be in the air. The microbes on surfaces would probably not be able to ingest/ digest it. We need something that breaks the formaldehyde molecules in the air or something that purifies air.
Darko Savic a month ago
Ventilation could take care of the air while something applied to the surfaces should hopefully prevent (grab) it from getting into the air
Shubhankar Kulkarni a month ago
Darko Savic True! You mean to layer the new furniture with the microbe till the formaldehyde fumes subside?

Ultraviolet germicidal irradiation (UVGI)

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6678761/

by Subash Chapagain on Oct 13, 2020

Method of detecting formaldehyde

[1] Thomas Osterland, Hendrik Stein, and Thomas Wilharm. Voltammetric Determination of Formaldehyde at Low Concentrations in the Synthetic Fuel Oxymethylene Dimethyl Ether Innokentij Bogatykh. Energy & Fuels 2019 33 (11), 11078-11081

[2] Pengju Hu, Haisi Xiang, Xuejing Zhang,et al. Influence factors of determination of formaldehyde in air by phenolic reagent spectrophotometry[J]. Coal and Chemical Industry, 2020,43(04):140-142.

[3] Luyang Wang, Zhen Zhao, Xin Yuan. Detection and confirmation of free formaldehyde by acetyl acetone method[J].Chemical Engineer,2016,30(09):22-24.

[4] Naohide Shinohara, Tomohisa Kajiwara, Masato Ohnishi, et al. Passive Emission Colorimetric Sensor (PECS) for Measuring Emission Rates of Formaldehyde based on an Enzymatic Reaction and Reflectance Photometry. Environ. Sci. Technol. 2008, 42, 12, 4472–4477.

by Deru Xu on Nov 16, 2020

Shubhankar Kulkarni 5 days ago
Deru Xu Although the suggestion is very precise, the whole process seems time-consuming and costly. It is suited for companies that manufacture furniture or upholstery but not for individual homes. Can we come up with a slightly crude but a simpler procedure (something like a proxy) that can be used by, potentially, everybody?

How do we detect indoor formaldehyde?

by Darko Savic on Oct 13, 2020

Jamila a month ago
There aren't many devices that detect formaldehyde reliably or accurately. Recently, I read a paper in which researchers used a device called an electronic nose to detect formaldehyde! The electronic nose tech has been used to detect hazardous gases before. So, it would be interesting to see what happens next with this technology! [1] Reference: van den Broek, Jan, Andreas T. Güntner, and Sotiris E. Pratsinis. "Selective Detection of Formaldehyde By a Flame-Made Sensor Array for Environmental Monitoring." 237th ECS Meeting with the 18th International Meeting on Chemical Sensors (IMCS 2020)(May 10-14, 2020). ECS, 2020.

An exhaust that detects formaldehyde and removes it

by Shubhankar Kulkarni on Oct 14, 2020

Formaldehyde detector connected to air ventilation

by Darko Savic on Nov 22, 2020

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