Removal of Disinfection By-products Formation Potential by Combination of Preoxidation and Coagulation Sedimentation Processes

DOI

10.2991/iceep-17.2017.168How to use a DOI?

Keywords

High natural matter; Pre-oxidation; Coagulation sedimentation; Disinfection by-products formation potential

Abstract

Pre-oxidation is widely used to remove synergistically algae, odor and natural organic matter (NOM) for drinking water treatment. Permanganate (KMn₄), ozone (O₃), and hydrogen peroxide (H₂O₂) in combination with polyaluminum chloride (PAC) coagulation for assisting the removal of NOM and disinfection byproduct formation potential (DBPFP). DBPFP investigated included trihalomethanes formation potential (THMFP), haloacetic acids formation potential (HAAFP) and chloral hydrate formation potential (CHFP). The results showed that pre-oxidation with KMn₄ and pre-ozonation can increase the removal rate of THMFP and HAAFP. Pre-oxidation with KMnO4 can also increase the removal rate of CHFP, however, pre-ozonation can decrease the removal rate of CHFP. Pre-oxidation with H₂O₂ had no significant effect on the removal rate of DBPFP. KMnO4 is the best choice for assisting the removal of NOM and DBPFP, and optimal dosage was in range from 0 to 1 mg/L.

Copyright

© 2017, 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  - Song Chen
AU  - Wenyi Dong
PY  - 2017/06
DA  - 2017/06
TI  - Removal of Disinfection By-products Formation Potential by Combination of Preoxidation and Coagulation Sedimentation Processes
BT  - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)
PB  - Atlantis Press
SP  - 977
EP  - 980
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-17.2017.168
DO  - 10.2991/iceep-17.2017.168
ID  - Chen2017/06
ER  -