Abstract

In this paper we used the excess sludge of municipal sewage treatment plant as raw material, ZnCl2 as activator, and adopted the traditional activated carbon production process to prepare sludge activated carbon adsorbent. Then characterized the structure and determined the performance of sludge activated carbon adsorbent prepared at the activation temperature of 600°C, in a period of 90min, N2 as protecting gas, in a ratio of dry sludge and activator of 5:2. The results show that sludge activated carbon adsorbent with ZnCl2 as activator has the adsorption performance through the evidence of BET, SEM and XRD. The maximal iodine value of the adsorbent is more than 380 mg/g, and it has good adsorption performance for H2S. And there is good correlation between the structure and the performance of sludge activated carbon adsorbent.

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