Encapsulating fly ash and acidic process waste water in brick structure

JOURNAL OF HAZARDOUS MATERIALS

卷:176

Article

Koseoglu, K.²  Polat, M.³  Polat, H.¹ 

[1] Izmir Inst Technol, Dept Chem, TR-35430 Izmir, Turkey

[2] Ege Univ, Dept Mat Sci, Izmir, Turkey

[3] Izmir Inst Technol, Dept Chem Engn, TR-35430 Izmir, Turkey

关键词: Fly ash;    Acidic liquid waste;    Brick;    Fixation;    Leaching;   

DOI  :  10.1016/j.jhazmat.2009.11.133

来源: Elsevier

【 摘 要 】

Fly ash contains metals such as cadmium, iron, lead, aluminum and zinc in its structure in appreciable amounts. These metals can leach out into surface and ground waters if fly ash is not properly disposed of. A similar problem also exists for acidic process waste waters discharged by numerous industries. The purpose of this study was to utilize such wastes as additives in the production of construction quality bricks for the purpose of waste elimination. The bricks produced were subjected to flexural strength and water retention capacity tests along with heavy metal leaching experiments in order to determine the applicability of the procedure and the best possible recipes. This paper summarizes the results obtained in these tests along with the possible mechanisms involved in stabilizing the two wastes in the brick structure. (C) 2009 Elsevier B.V. All rights reserved.

【 授权许可】

Free