Carbon foams used as packing media in a biological aerated filter system

被引：11

作者：

Bao, Ying ^{[1
]}

Zhan, Liang ^{[1
]}

Wang, Chunxiao ^{[1
]}

Wang, Yanli ^{[1
]}

Qiao, Wenming ^{[1
]}

Ling, Licheng ^{[1
]}

机构：

[1] E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 19-20期

基金：

中国国家自然科学基金;

关键词：

Carbon foam; Porous materials; Biomaterials; Wastewater treatment;

D O I：

10.1016/j.matlet.2011.07.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon foams were derived from coal-tar pitch and applied as packing media in a biological aerated filter (BAF) system for wastewater treatment. The capacity of growing bacteria on carbon foam is 5.6 wt.%. The removal efficiency of chemical oxygen demand (COD), biochemical oxygen demand (BOD) and ammonia nitrogen (NH3-N) in a carbon foam BAF system are 81, 81 and 75%, respectively. Compared with the ceramic particle BAF system, the carbon foam BAF system exhibits a higher and steadier treatment performance for COD, BOD and NH3-N removal. This is because carbon foam exhibits a higher porosity, higher external surface area, rougher coral-like surface and stronger adsorption performance for organic pollutants. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：3154 / 3156

页数：3

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