Chemical treatment of wastewater from flue gas desulphurisation

被引：0

作者：

Pasiecznik, Iwona ^{[1
]}

Szczepaniak, Wlodzimierz ^{[1
]}

机构：

[1] Wroclaw Univ Sci & Technol, Fac Environm Engn, Wybrzeze Wyspianskiego 27, PL-30370 Wroclaw, Poland

来源：

INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY SYSTEMS AND ENVIRONMENTAL ENGINEERING (ASEE17) | 2017年 / 22卷

关键词：

BORON REMOVAL; DESALINATION; PHOSPHATE;

D O I：

10.1051/e3sconf/20172200133

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 article presents results of laboratory tests of removing boron and arsenium from non-ideal solutions using double-layered magnesium/aluminium hydroxides (Mg/Al Double-Layered Hydroxide - DLH) produced with nitrate-chloride method. In research, wastewater from an installation for flue gas desulfurization was examined. Double-layered hydroxides are perfect absorbents for anionic compounds. The research proved high effectiveness of preparation with reference to arsenium, as well as confirmed the effect of presence of sulfatic and arsenate ions on the effectiveness of boron removal. On the basis of research on absorption kinetics a theoretical dose of DLH/NO3-Cl/M preparation was calculated and compared with a dose that ensures emimination of boron below the limit standarized by the national regulations. Application of double-layered magnesium/aluminium hydroxides for boron elimination from industrial wastewater requires significantly higher doses of preparation than those calculated in model investigations. It is due to the priority of removal of multivalent ions, such as sulfatic, arsenate or phosphate ions, by DLH/NO3-Cl/M.

引用

页数：8

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