Nature-based air purifier integrated with biochar-cellulose aerogels with long-term durability and multi-pollutant removal capacity

Indoor pollution sources (e.g., fuel-burning combustion appliances, building materials, and furnishings) are the primary cause of indoor air quality problems. Household air pollution was responsible for an estimated 3.2 million deaths per year in 2020, including over 237,000 deaths of children under the age of 5. To address this problem, we developed a nature-based air purifier (NBCAP) to purify indoor air to replace or supplement ventilation air. The operation process of NBCAP is natural, involving plant uptake, soil absorption, microbial degradation, and biochar-cellulose aerogels adsorption. The lifespan of NBCAP is estimated to be 3 years, and the filter can be easily cleaned with water and does not need periodic replacements. NBCAP is suitable for various indoor environments requiring air purification, including but not limited to homes, schools, hospitals, and shopping malls. Even low-income families, as well as remote, rural, and Indigenous communities, can afford to use it.

Faculty Supervisor:

Gordon Huang

Student:

Partner:

North Forge

Discipline:

Engineering

Sector:

Education; Management of companies and enterprises; Professional, scientific and technical services

University:

University of Regina

Program: