Screen culture of B-megaterium flocculant and the removal of Cu(II) from wastewater

DOI

10.2991/mmme-16.2016.108How to use a DOI?

Keywords

B-megaterium; screen culture; Heavy metals; flocculant; Heavy metals

Abstract

Isolation and screening of a strain with high efficiency of flocculation effect from the activated sludge of a wastewater treatment plant in Kunming, after identification of strains, flocculating activity experiments, and eventually extracted Bacillus megaterium flocculant and study on its treatment of Cu (II) wastewater removal. Results showed that in the optimal medium: flocculating activity of the bacteria from 78.76% to 90.78%. In the optimal culture conditions, flocculation reaction 20min, flocculant dosage 100mg/liter, Cu (II) initial con-centration of 10mg/liter, Cu (II) effluent concentration of 0.404mg/liter, Cu (II) removal rate of 95.96%. By flocculating agent before and after the SEM, XPS, comparative analysis of XPS before and after reaction, wastewater in the Cu (II) replaced by flocculating agent on the -OH or -COOH of a molecule of hydrogen, forming CH2CHNH2COOCu colloidal substances, ultimately bridging role by adsorption flocculation and sedimentation Cu (II).

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  - Kairui Wang
AU  - Xiaojun Xu
AU  - Shuli Liu
AU  - Han Sun
AU  - Shilin Feng
PY  - 2016/10
DA  - 2016/10
TI  - Screen culture of B-megaterium flocculant and the removal of Cu(II) from wastewater
BT  - Proceedings of the 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering
PB  - Atlantis Press
SP  - 469
EP  - 472
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmme-16.2016.108
DO  - 10.2991/mmme-16.2016.108
ID  - Wang2016/10
ER  -