酸性雨原因物質の排出制御に関する研究:(III) 石炭ならびにバイオブリケット燃焼エアロゾル中の化学組成および酸性雨への関与

概要

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Air pollution in all regions of China is recognized as smoke pollution type. Coal combustion is the largest source of artificial particulate matter in the atmosphere. Especially, acidic aerosols could cause acidic precipitation with air pollution. The influence of acidic precipitation is continuously increasing in China. Therefore, we are studying a coal-biomass briquette technique as an effective control technique to reduce sulfur dioxide and other pollutants released from coal combustion. In order to understand the reduction of particulate matter and acidic aerosol emission with the bio-briquette technique, the acidity and the acid-neutralizing capacity of aerosols released from raw coal and bio-briquette combustion were measured. This study showed that H+ concentration in aerosols from bio-briquette combustion is reduced by 43∼85 % compared to the raw-coal combustion, and HCl, SO2 and dust emissions are also reduced by 26∼61, 82∼87 and 55∼83 %, respectively. It is concluded that bio-briquette technique not only reduces the pollutants emitted from coal combustion, but also lowers the acidity of particulate matter released from it.
日本エアロゾル学会の論文
2000-03-20