The Influence of Aluminum on the Flocculation of Activated Sludge with Different Concentrations

DOI

10.2991/aeece-16.2016.22How to use a DOI?

Keywords

Aluminum ion, Flocculation, Activated sludge, Extracellular polymeric substances

Abstract

The mechanism governing the flocculation of activated sludge (AS) with different concentrations of aluminum was studied in this paper. The AS samples were cultivated in sequencing batch reactors at 22 . The sludge retention times (SRT) was 15 d. The dosages of Al3+ were 0.00, 0.0625, 0.125, 0.250, 0.500, 1.00, 2.00 and 4.00 meq/L. The experimental results indicated that the dosage of Al3+ could enhance sludge flocculation, but deteriorate sedimentation. It was also found that as Al3+ dosage ( 2 meq/L) increased, the total interaction energy, and loosely bound extracellular polymeric substances (LB-EPS) content decreased, indicating that the dosage of Al3+ could enhance sludge flocculation.

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  - Hang Zhang
AU  - Yue Wen
PY  - 2016/07
DA  - 2016/07
TI  - The Influence of Aluminum on the Flocculation of Activated Sludge with Different Concentrations
BT  - Proceedings of the 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016)
PB  - Atlantis Press
SP  - 99
EP  - 102
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeece-16.2016.22
DO  - 10.2991/aeece-16.2016.22
ID  - Zhang2016/07
ER  -