Experiments on the Effects of Dissolved Oxygen on the Free and Immobilization Effective Microorganisms (EM) in Treating Polluted River Water

DOI

10.2991/icmaee-14.2014.38How to use a DOI?

Keywords

Immobilization, Compound mineral, Sodium alginate, Effective microorganisms, Dissolved oxygen

Abstract

The immobilization of effective microorganisms (EM) on matrix supports is of great importance for improving microbes’ density and avoiding microbes flooding so as to enhance removal efficiency in polluted river water. What’s more, DO is of great importance in the wastewater treatment. Based on the previous study, the effects of dissolved oxygen (DO) on the activities of EM and IAEM (minerals adsorbing EM embedded by sodium alginate) were also investigated in polluted river water. The results showed that with abundant DO, removal efficiency of NH3-N, TP and COD for EM and IAEM were increased by (34.34%, 18.18%, 4.59%) and (5.71%, 5.06%, 2.79%), which demonstrated EM alone was more adaptive to survive and reproduce under aerobic conditions, while immobilized microbes could better overcome the limitation of DO.

Copyright

© 2014, 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  - Min Ji
AU  - Jianzhong Zhu
AU  - Ruirui Zhu
AU  - Jianbiao Chen
AU  - Chunyan Wang
PY  - 2014/03
DA  - 2014/03
TI  - Experiments on the Effects of Dissolved Oxygen on the Free and Immobilization Effective Microorganisms (EM) in Treating Polluted River Water
BT  - Proceedings of the International Conference on Material and Environmental Engineering (ICMAEE 2014)
PB  - Atlantis Press
SP  - 143
EP  - 145
SN  - 1951-6851
UR  - https://doi.org/10.2991/icmaee-14.2014.38
DO  - 10.2991/icmaee-14.2014.38
ID  - Ji2014/03
ER  -