Study on Property of Gel-embedded Nitrobacteria Carrier and Its Application in Treating Urban Sewage
- DOI
- 10.2991/icaees-15.2015.178How to use a DOI?
- Keywords
- property; carrier; application; urban sewage
- Abstract
The diffusion behavior mechanical performance activation and biological property of gel-embedded nitrobacteria carrier LQ-1 were measured, and its application in the treatment of urban sewage was studied by pilot experiment. The results show that the interpenetrating holing-through structure (about 5 m) is formed in the immobilized nitrifying bacteria carrier. When the compression rate is 85% the compressive stress reaches 0.49 MPa. More than 95% of the diffusion process can be completed in 10 minutes. The optimal activation time of immobilized carrier is 13d under suitable temperature, and a higher biological activity can be achieved after activation at low temperature (<10 ). Reducing the microbial content, the property of carrier above can still be obtained. The activation time of gel-embedded nitrobacteria carrier in pilot experiment is no more than 11d, and the system can achieve qualified operation at low sludge concentration. The effluent concentration of NH3-N is below 1 mg/L with removal rate more than 99% by using the activated carrier under conditions as temperature 13~15 , influent loading 72.5 m3/d (1.45 times of design value), adding ratio of carrier 12%, Do about 5 mg/L, which reveal that carrier is conducive to the upgrading and reconstruction of municipal wastewater treatment plant.
- Copyright
- © 2015, 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/).
Cite this article
TY - CONF AU - Jingzhi Zhang AU - Xuelian Zhao AU - Jinquan Liu AU - Xiangshun Jing AU - Kai Wang AU - Jiane Zuo PY - 2015/07 DA - 2015/07 TI - Study on Property of Gel-embedded Nitrobacteria Carrier and Its Application in Treating Urban Sewage BT - Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015 PB - Atlantis Press SP - 962 EP - 970 SN - 2352-5401 UR - https://doi.org/10.2991/icaees-15.2015.178 DO - 10.2991/icaees-15.2015.178 ID - Zhang2015/07 ER -