Prevention of Trace and Major Element Leaching from Coal Combustion Products by Hydrothermally-Treated Coal Ash

被引：1
|
作者：
Adnadjevic, B. [2 ]
Popovic, A. [1 ]
Mikasinovic, B. [3 ]
机构：
[1] Univ Belgrade, Dept Chem, Belgrade 11001, Serbia
[2] Univ Belgrade, Dept Phys Chem, Belgrade 11001, Serbia
[3] IChTM Chem Ctr, Belgrade, Serbia
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2009年 / 31卷 / 15期
关键词：
coal ash; leaching; pollution; zeolites; FLY-ASH; ZEOLITE SYNTHESIS; AQUEOUS-SOLUTION; WASTE; REMOVAL; WATERS; IMMOBILIZATION; INCINERATION; CONVERSION; PHOSPHATE;
D O I：
10.1080/15567030802089672
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The most important structural components of coal ash obtained by coal combustion in "Nikola Tesla A" power plant located near Belgrade (Serbia) are amorphous alumosilicate, alpha-quartz, and mullite. The phase composition of coal ash can be altered to obtain zeolite type NaA that crystallizes in a narrow crystallization field (SiO2/Al2O3; Na2O/SiO2; H2O/Na2O ratios). Basic properties (crystallization degree, chemical composition, the energy of activation) of obtained zeolites were established. Coal ash extracts treated with obtained ion-exchange material showed that zeolites obtained from coal ash were able to reduce the amounts of iron, chromium, nickel, zinc, copper, lead, and manganese in ash extracts, thus proving its potential in preventing pollution from dump effluent waters.
引用
收藏
页码：1387 / 1396
页数：10
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