The Structure and Performance of Sludge Activated Carbon with ZnCl₂ as Activator

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.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 434-437
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.434
• Online since: February 2013
• Authors: Wei Jiang, Lin Huan Zhang, Zhen Long Gong, Bo Yan, An Xi Jiang
• Keywords: Excess Sludge, H₂S, Sludge Activated Carbon Adsorbent, ZnCl₂

References

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[2] Zengmin Shen, Wenhui Zhang, Xuejun Zhang, et al. [M]. Beijing: Chemical Industry Press, 2008: 11-12(In Chinese).