Graduate School of Engineering, Hokkaido University N13W8, Sapporo 060-8628, Japan.
Water Sci Technol. 2010;62(11):2664-8. doi: 10.2166/wst.2010.415.
Geosmin and 2-methylisoborneol (2-MIB) are naturally occurring compounds responsible for musty-earthy-odors in surface water supplies. They are a severe problem confronting utilities worldwide. Adsorption by powdered activated carbon (PAC) is a widely used process to control this problem, but it has low efficiency, which engenders large budget spending for utilities services. Super-powdered activated carbon (S-PAC) is activated carbon with much finer particles than those of PAC. Experiments on geosmin and 2-MIB adsorptions on S-PAC and PAC were conducted. Geosmin and 2-MIB adsorption capacities on S-PAC were not smaller than those on PAC although natural organic matter, which adversely impacted the adsorption capacity of geosmin and 2-MIB, was more adsorbed on S-PAC than on PAC, meaning that the adsorption competition is less severe for S-PAC than for PAC.
土臭素和 2-甲基异莰醇（2-MIB）是造成地表水中霉土气味的两种天然化合物。它们是全世界公共事业面临的一个严重问题。粉末状活性炭（PAC）吸附是一种广泛用于控制该问题的方法，但效率较低，这导致公共事业服务的预算支出很大。超级粉末状活性炭（S-PAC）的颗粒比 PAC 的更细。对 S-PAC 和 PAC 上的土臭素和 2-MIB 吸附进行了实验。尽管天然有机物对土臭素和 2-MIB 的吸附能力有不利影响，但 S-PAC 对土臭素和 2-MIB 的吸附容量并不小于 PAC，这意味着 S-PAC 的吸附竞争比 PAC 弱。
