期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Preparation, characterization of sludge adsorbent and investigations on its removal of hydrogen sulfide under room temperature 被引量:3
1
作者 Fen LI Tao LEI +2 位作者 Yanping ZHANG Jinzhi WEI Ying YANG 《Frontiers of Environmental Science & Engineering》 SCIE EI CAS CSCD 2015年第2期190-196,共7页
To recycle the sludge resource from sewage treatment plants and solve the problem of odor pollution, the sludge was converted into an adsorbent by carbonized pyrolysis and the process was optimized by orthogonal exper... To recycle the sludge resource from sewage treatment plants and solve the problem of odor pollution, the sludge was converted into an adsorbent by carbonized pyrolysis and the process was optimized by orthogonal experiments. The capability for odor removal as well as the structure of the adsorbent was studied with HzS as a target pollutant. The results indicate that the main factor affecting the deodorization performance of the adsorbent is the activating time. The sludge adsorbent sample SAC1 prepared under optimum conditions exhibits the best deodorization performance with a H2S breakthrough time of 58 min and an iodine value nearly that of the coal activated carbon. The breakthrough time of H2S is much longer than that on the coal activated carbon. On the other hand, characterization results from X-ray diffractometer (XRD), X-ray photoelectron spectrometer (XPS) and scanning electron microscope (SEM) techniques show that SAC1 is composed of mainly graphite carbon with lower oxygen content on the surface. The bulk of SAC 1 exhibits a honeycomb structure with well developed porosity and a high specific surface area of 120.47 m^2· g^-1, with the average pore diameter being about 5 nm. Such a structure is in favor of H2S adsorption. Moreover, SAC 1 is detected to contain various metal elements such as Zn, Fe, Mg, etc., leading to a superior deodorization property to that of coal activated carbon. 展开更多
关键词 Keywords orthogonal experiment sludge adsorbent hydrogen sulfide
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部