ゼオライト鉱物による悪臭ガスの吸着除去

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タイトル別名
  • Adsorption Removal of Malodorant Gases by Zeolite Tuffs
  • ゼオライト コウブツ ニ ヨル アクシュウ ガス ノ キュウチャク ジョキョ

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Experimental studies have been carried out to clarify the possibility of adsorption removal of malodorant gases such as ammonia, hydrogen sulfide and methylmercaptan from various environments by zeolite tuffs. The test was conducted by the Colomun method using pellets of Clinoptilolite and Mordenite. Various binding agents, i. e. magnesium silicate, sodium silicate, etc., were added for pelletizing the powder zeolite tuffs. The results of the experiments are as follows: The adsorbing capacity of these pellets for malodorant gases depended upon the molecular diameter of these gases. When the malodorant gases adsorbed were ranked according to their quantities, from the largest to the smallest, then their order was 1) ammonia, 2) hydrogen sulfide, 3) methylmercaptan. Mordenite has a larger void diameter than that of Clinoptilolite and showed a higher adsorbing capacity for these gases. The pellets of Mordenite which were added on 2-10% of magnesium silicate showed the highest adsorption capacity for these gases. The compressive strength of the Mordenite pellets became maximum when they were calcined at 200°C-500°C. After malodorant gases were adsorbed, these pellets were perfectly desorbed at 100°C. The experimental results showed that these tests can be applied for practical use. The observed adsorption velocity for malodorant gases by zeolite tuff agreed with Langmuir's equation In Ve/(Ve-V) =ψ·t. It was assumed that the adsorption mechanism in this case was a physical one.

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  • 日本鑛業會誌

    日本鑛業會誌 100 (1162), 1150-1156, 1984

    一般社団法人 資源・素材学会

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