| Issue |
E3S Web Conf.
Volume 145, 2020
2019 International Academic Exchange Conference on Science and Technology Innovation (IAECST 2019)
|
|
|---|---|---|
| Article Number | 02076 | |
| Number of page(s) | 4 | |
| Section | International Conference on New Energy Science and Environmental Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202014502076 | |
| Published online | 06 February 2020 | |
Proliferation of biomass and its impact on the operation of a submerged membrane bioreactor
1 Guangzhou Huake Environmental Protection Engineering Co., Ltd., Guangzhou 510655, China
2 South China Institute of Environmental Sciences, Guangzhou 510655, China
* Corresponding author’s e-mail: zhouweijian@scies.org
The aim of this work was to investigate the biomass proliferation and its impact on the operation of a submerged membrane bioreactor (sMBR). A programmable logic controller (PLC) was used to control the process of the sMBR with no discharge of sludge. When MLSS was 9670 mg/L and the solid retention times (SRT) ranged from 20 to 40 days, the optimal removal efficiencies of COD, NH3-N, TP were 93.89%, 93.02%, 80.57%, respectively. Accompanying with the decreasing of the sludge loading, the substrate and nutrition were insufficient in the sMBR, leading to endogenous respiration of the activated sludge, which decreased the activity of sludge and resulted in the death of more microorganisms.
© The Authors, published by EDP Sciences 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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