We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Performance of microporous carrier for removing nitrogen from aquaculture wastewater.
- Authors
Wen Zhou; Julin Yuan; Tengfei Ni; Yuanhao Yang; Mengying Li; Zhongqin Cheng
- Abstract
It is critical when dealing with the huge emissions of low-strength wastewater (LSW) to improve the total nitrogen (TN)-removal performance of the treatment strategy. In this study, a kind of microporous carrier (polyvinyl alcohol gel beads) was studied for its N-removal performance in treating low-strength wastewater (LSW) in a biofilm reactor. The results showed that the best N-removal performance within three reactors with different carriers was achieved under the condition of chemical oxygen demand/TN = 8 and aeration strategy S2. In these conditions, the effluent TN of the polyvinyl alcohol (PVA)-bead group was stably maintained below 2 mg/L, the microbial richness of the biofilm on PVA-gel beads was significantly greater than that of the control (suspended polypropylene plastic sphere); furthermore, the percentage of microorganisms related to N-removal on the PVA-gel carriers was 39.04%, approximately 9.5 times higher than the control (4.13%). Therefore, compared with the traditional polypropylene plastic sphere, microporous PVA-gel carriers performed better for the advanced treatment of LSW.
- Subjects
SEWAGE; CHEMICAL oxygen demand; POLYVINYL alcohol; NITROGEN; AQUACULTURE
- Publication
Desalination & Water Treatment, 2022, Vol 254, p200
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2022.28390