Agglomeration of ultra-fine particles from flue gas in coal-fired power plant using polymeric flocculants

DOI

10.2991/i3csee-16.2016.29How to use a DOI?

Keywords

polyacrylamides; coal-fired power plant; ultra-fine particles; agglomeration; turbidity

Abstract

The flocculation or agglomeration of ultra-fine particles from flue gas in coal-fired power plant induced by various polymeric flocculants, polyacrylamides (PAM) in particular, was studied using jar tests. Various influencing factors were investigated, including different type, molecular weight and charge density of polyacrylamides. Results showed that cationic polyacrylamides (CPAM) performed better than anionic and nonionic PAM; whereas cationic PAMwith a high molecular weight and charge density exhibited best flocculation performance. Specifically, when CPAMwas added at 3 ppm to 0.2% w/w of ultra-fine suspension, the turbidity of the suspension was successfully lowered by 99.1%; and the average size of agglomeratedultra-fine particles was increased up to 80 times.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yi Zhang
AU  - Kunqi Li
AU  - Haoran Chen
AU  - Yuanfeng Pan
AU  - Huining Xiao
AU  - Hua Guo
PY  - 2016/04
DA  - 2016/04
TI  - Agglomeration of ultra-fine particles from flue gas in coal-fired power plant using polymeric flocculants
BT  - Proceedings of the 2016 International Conference on Civil, Structure and Environmental Engineering
PB  - Atlantis Press
SP  - 151
EP  - 155
SN  - 2352-5401
UR  - https://doi.org/10.2991/i3csee-16.2016.29
DO  - 10.2991/i3csee-16.2016.29
ID  - Zhang2016/04
ER  -