期刊
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
卷 45, 期 1, 页码 202-206出版社
ELSEVIER
DOI: 10.1016/j.jtice.2013.04.017
关键词
Aerobic granules; Ammonium adsorption; High concentration
资金
- NSFC [51278128]
High-strength ammonium (NH4+) wastewaters are difficult to be treated biologically. Aerobic granules are regarded as a promising technology for NH4+ removal from wastewaters. Adsorption using aerobic granules in 50-4000 mg NH4+-N/L wastewaters was studied at 30 degrees C. Adsorption capacity was increased with 50-1000 mg NH4+-N/L and reached plateau of 24.5 mg NH4+-N/g-volatile suspended solids at >2000 mg NH4+-N/L. Ion exchange mechanism controls adsorption at <300 mg NH4+-N/L and physisorption mechanism dominates the process at >1000 mg NH4+-N/L. The biomass of aerobic granules presents a recyclable adsorbent for NH4+ from high-strength wastewaters. (C) 2013 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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