Abstract
Indoor air contaminant is a public issue. High Volatile Organic Compound (VOC), Carbon monoxide (CO), Carbon dioxide (CO 2 ), and particulate matter is becoming main issue that needs to solve. Therefore, this study focus on improving indoor air quality by using activated carbon (AC) for Ventilation and Air-Conditioning (VAC). It investigated because AC is widely explored but developing AC as a filter for VAC is not developed yet. The AC prepared by physical and chemical activation process and combination both of process and it was activated by H 3 PO 4 and NaOH. Characterization and analysis process are consists of water content, ash content, bulk density, adsorption capacity, iodine number and indoor air filtering analysis. Treated activated carbon potential in achieving higher surface area of the structure to the range of 950 to 1150 m 2 /g for gas phase application. The higher surface area will adsorb more air pollution. Maintained properties of activated carbon such as hardness, density, pore, extractable ash, particle size (12 by 40 mesh) and pH are becoming the main concern in achieving high quality of activated carbon.
Highlights
Demanding of fresh, healthy and comfortable indoor environment is essential since most people spend their time in indoor as compared to outdoor [1]
The increasing concern towards indoor air quality (IAQ) have gained the suitable technique on mitigating the indoor air contaminant [2] which can effect on health and working performance [3]
Volatile Organic Compound (VOC), Carbon monoxide (CO), Carbon dioxide (CO2), and particulate matter defined as the major contribution of indoor air contaminant
Summary
Healthy and comfortable indoor environment is essential since most people spend their time in indoor as compared to outdoor [1]. The increasing concern towards indoor air quality (IAQ) have gained the suitable technique on mitigating the indoor air contaminant [2] which can effect on health and working performance [3]. The concentration of indoor air contaminant is higher than outdoor because it’s released by human activities, building materials, furniture, carpets, paints, cleaning product, etc. Mechanical Ventilation and AirConditioning (MVAC) system have been improved by reducing indoor particulate level This technique is not promising to diminish of contaminant gases and require more energy consumption [10]. Air purification through activated carbon adsorption technique being most common air cleaning method especially for VOC and other polluted gases [11]. AC as an indoor air filter in order to improve indoor air quality and to reduce the cancer risk and non-cancer risk health problem. Palm shell AC (Figure 3) is very potential to explore in Malaysia
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