Feasibility Study of Shell Powder as Biological Aerated Filter

Xiaomeng Zhang, Xiaomeng Zhang, Wanjun Zhang, Wanjun Zhang, Junwen Ma, Yubo Cui, Yubo Cui

2022

Abstract

Shells are widely used as biofilm carriers for biological contact oxidation treatment because of their rough surface and the abundance of CaCO3 on their surface. shells have the advantage of high helium and phosphorus removal efficiency compared to conventional carrier materials. The CaCO3 in the shell provides a source of alkalinity for nitrification. Shell fillers are used in biological aerated filter reactors. Experimental results show that extended hydraulic retention time (HRT) can effectively improve the pollutant removal efficiency of biofilm reactors. When the HRT was 12 h, the biofilm reactor was more effective in removing organic matter, with the removal rate of COD increasing from 70.6% to 92.5%. the average removal rate of ammonia nitrogen increased from 37.3% to 95.8% when the HRT was 4 h to 12 h. The highest treatment effect for phosphorus was 74.5% when the HRT was 8 hours. At 12 hours HRT, the effluent concentration of ammonia reached 1.5 mg/L. The pH of the treated effluent from the shell-filled biofilter was stable between 7 and 8.5.

Paper Citation

in Harvard Style

Zhang X., Zhang W., Ma J. and Cui Y. (2022). Feasibility Study of Shell Powder as Biological Aerated Filter. In Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB, ISBN 978-989-758-595-1, pages 13-17. DOI: 10.5220/0011175700003443

in Bibtex Style

@conference{icbeb22,
author={Xiaomeng Zhang and Wanjun Zhang and Junwen Ma and Yubo Cui},
title={Feasibility Study of Shell Powder as Biological Aerated Filter},
booktitle={Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,},
year={2022},
pages={13-17},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011175700003443},
isbn={978-989-758-595-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,
TI - Feasibility Study of Shell Powder as Biological Aerated Filter
SN - 978-989-758-595-1
AU - Zhang X.
AU - Zhang W.
AU - Ma J.
AU - Cui Y.
PY - 2022
SP - 13
EP - 17
DO - 10.5220/0011175700003443