Effects of hydraulic retention time and influent nitrate concentration on solid-phase denitrification system using wheat husk as carbon source
文献类型： 外文期刊
作者： Niu, Shuhui 1 ; Gao, Shuwei 1 ; Zhang, Kai 1 ; Li, Zhifei 1 ; Wang, Guangjun 1 ; Li, Hongyan 1 ; Xia, Yun 1 ; Tian, Jingjing 1 ; Yu, Ermeng 1 ; Xie, Jun 1 ; Zhang, Minting 3 ; Gong, Wangbao 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Minist Agr, Pearl River Fisheries Res Inst, Key Lab Trop & Subtrop Fishery Resource Applicat &, Guangzhou, Peoples R China
2.Guangdong Ecol Remediat Aquaculture Pollut Res Ctr, Guangzhou, Peoples R China
3.Guangdong Shunde Junjian Modern Agr Technol Co Ltd, Foshan, Peoples R China
关键词： Wheat husk; Solid-phase denitrification; Hydraulic retention time; Influent nitrate concentration; Microbial community
期刊名称：PEERJ （ 影响因子：2.7； 五年影响因子：3.1 ）
ISSN： 2167-8359
年卷期： 2023 年 11 卷
页码：
收录情况： SCI
摘要： Solid-phase denitrification shows promise for removing nitrate (NO-3-N) from water. Biological denitrification uses external carbon sources to remove nitrogen from wastewater, among which agriculture waste is considered the most promising source due to its economic and efficiency advantages. Hydraulic retention time (HRT) and influent nitrate concentration (INC) are the main factors influencing biological denitrification. This study explored the effects of HRT and INC on solid-phase denitrification using wheat husk (WH) as a carbon source. A solid-phase denitrification system with WH carbon source was constructed to explore denitrification performance with differing HRT and INC. The optimal HRT and INC of the wheat husk-denitrification reactor (WH-DR) were 32 h and 50 mg/L, respectively. Under these conditions, NO-3-N and total nitrogen removal rates were 97.37 & PLUSMN; 2.68% and 94.08 & PLUSMN; 4.01%, respectively. High-throughput sequencing revealed that the dominant phyla in the WH-DR operation were Proteobacteria, Bacteroidetes, and Campilobacterota. Among the dominant genera, Diaphorobacter (0.85%), Ideonella (0.38%), Thiobacillus (4.22%), and Sulfurifustis (0.60%) have denitrification functions; Spirochaeta (0.47%) is mainly involved in the degradation of WH; and Acidovorax (0.37%) and Azospira (0.86%) can both denitrify and degrade WH. This study determined the optimal HRT and INC for WH-DR and provides a reference for the development and application of WH as a novel, slow-release carbon source in treating aquaculture wastewater.
- 相关文献
作者其他论文 更多>>
-
Analysis of the mechanism of difference in umami peptides from oysters (Crassostrea ariakensis) prepared by trypsin hydrolysis and boiling through hydrogen bond interactions
作者：Yu, Ermeng;Fang, Yikun;Fang, Yikun;Yu, Ermeng;Lv, Min;Pan, Chuanyan;Lo, Xu;Ya, Shiya;Ma, Huawei
关键词：Oyster; Umami peptide; Hydrogen bond interaction; Cleavage site; Molecular docking; Molecular electrostatic potential
-
Utilization of rice husk ash as a potential catalyst for diatom growth and adsorbent for heavy metals in aquaculture systems
作者：Jiang, Weiwei;Zhang, Kai;Wang, Linhua;Wang, Weixin;Du, Meirong;Li, Ruihuan;Fang, Jianguang;Jiang, Zengjie
关键词：Rice husk ash; Silicate; Diatom; Heavy metal; Aquaculture
-
Optimization of operating parameters for pyrite-based electrochemical bioreactor using response surface methodology: C/N ratio, current density, and hydraulic retention time
作者：Xie, Yufan;Yuan, Sicheng;Wang, Qinglong;Nie, Yuhu;Zhang, Shiyang;Wang, Guangjun;Wang, Weibo
关键词：Pyrite-based electrochemical bioreactor (PEBR); Operating parameter optimization; Response surface methodology
-
C4-HSL drives rapid biofilm formation in low-temperature aquaculture effluent: strengthening structural stability of biofilm and improving nitrogen removal efficiency
作者：Li, Junlin;Ma, Jiahao;Li, Zhifei;Xie, Jun;Zhang, Yuting;Yu, Mengyuan;Xia, Yun;Gong, Wangbao;Zhang, Kai;Wang, Guangjun;Zhong, Quanfa;Tian, Jingjing;Li, Hongyan;Xie, Wenping;Li, Junlin;Li, Junlin;Ma, Jiahao;Li, Zhifei;Xie, Jun;Zhang, Yuting;Yu, Mengyuan;Xia, Yun;Gong, Wangbao;Zhang, Kai;Wang, Guangjun;Zhong, Quanfa;Tian, Jingjing;Li, Hongyan;Xie, Wenping
关键词：Quorum sensing; Biofilm; Aquaculture; Nitrogen metabolism
-
Comparison of methods to produce high-quality dried triploid Fujian oyster: Hot air drying emerges as a superior technique
作者：Li, Hongyan;Lu, Yuchen;Lu, Jie;Yao, Tuo;Fu, Shengli;Fan, Sigang;Li, Hongyan;Lu, Jie;Yao, Tuo;Ye, Lingtong
关键词：Triploid fujian oyster; Drying methods; Flavor compounds; Dual-analytical approach
-
Protective role of medium-concentration selenium nanoparticles against high salinity-induced oxidative stress in Crassostrea hongkongensis gills and hepatopancreas
作者：Lu, Yuchen;Wang, Qingheng;Lu, Yuchen;Li, Hongyan;Lu, Jie;Yao, Tuo;Fu, Shengli;Li, Hongyan;Lu, Jie;Yao, Tuo;Ye, Lingtong
关键词：Nano-selenium; Crassostrea hongkongensis; High salinity stress; Antioxidant defense; Metabolic regulation; Tissue-specific response
-
The Naturally Bioactive Vicine Extracted from Faba Beans Is Responsible for the Transformation of Grass Carp (Ctenopharyngodon idella) into Crisp Grass Carp
作者：Tian, Jingjing;Xie, Jun;Yu, Ermeng;Zheng, Xinyu;Hou, Jilun;Zheng, Xinyu;Hou, Jilun;Zheng, Xinyu;Hou, Jilun;Yu, Ermeng;Kaneko, Gen;Fu, Bing;Luo, Minyi
关键词：reactive oxygen species; oxidant stress; vicine; grass carp; textural quality
