Characteristics of pellet-type adsorbents prepared from water treatment sludge and their effect on trimethylamine removal

被引：19

作者：

Bae, Junghyun ^{[1
]}

Park, Nayoung ^{[1
]}

Kim, Goun ^{[1
]}

Lee, Choul Ho ^{[1
]}

Park, Young-Kwon ^{[2
]}

Jeon, Jong-Ki ^{[1
]}

机构：

[1] Kongju Natl Univ, Dept Chem Engn, Cheonan 330717, South Korea

[2] Univ Seoul, Sch Environm Engn, Seoul 130743, South Korea

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2014年 / 31卷 / 04期

关键词：

Pellet-type Adsorbent; Water Treatment Sludge; Microporous Material; Acidity; Trimethylamine; PYRIDINE ADSORPTION; HYDROGEN-SULFIDE; FT-IR; ACIDITY; CATALYSTS; SILICA; MCM-41; BIOGAS;

D O I：

10.1007/s11814-013-0272-8

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We optimized the preparation method of pellet-type adsorbents based on alum sludge with the aim of developing a high-performance material for the adsorption of gaseous trimethylamine. Effects of calcination temperature on physical and chemical properties of pellet-type adsorbents were investigated. The porous structure and surface characteristics of the adsorbents were studied using N-2 adsorption and desorption isotherms, scanning electron microscope, X-ray diffraction, temperature-programmed desorption of ammonia, and infrared spectroscopy of adsorbed pyridine. The adsorbents obtained from the water treatment sludge are microporous materials with well-developed mesoporosity. The pellet-type adsorbent calcined at 500 A degrees C had the highest percentage of micropore volume and the smallest average pore diameter. The highest adsorption capacity in trimethylamine removal attained over the pellet-type adsorbent calcined at 500 A degrees C can be attributed to the highest number of acid sites as well as the well-developed microporosity.

引用

页码：624 / 629

页数：6

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