Promotion of polyhydroxyalkanoates-producing granular sludge formation by lactic acid using anaerobic dynamic feeding process
文献类型： 外文期刊
第一作者： Xi, Jiaxing
作者： Xi, Jiaxing;Zhang, Huihui;Zheng, Mingxia;Xi, Jiaxing;Zhang, Jinzhong;Fang, Wenjie;Xu, Heng
作者机构：
关键词： Granular sludge; Polyhydroxyalkanoates; Lactic acid; Biopolymers; Anaerobic dynamic feeding process
期刊名称：JOURNAL OF BIOTECHNOLOGY （ 影响因子：4.1； 五年影响因子：3.6 ）
ISSN： 0168-1656
年卷期： 2024 年 395 卷
页码：
收录情况： SCI
摘要： To promote the formation of granular sludge with high polyhydroxyalkanoates (PHAs) synthesis ability, an anaerobic dynamic feeding process (AnDF) was proposed. This process combines the feast-famine mode with an anaerobic plug flow feeding process and involving variations in cycle length and settling time. The effects of lactic acid (LA) content (0 %, 20 %, and 40 % COD) on sludge granulation and PHAs production were investigated using three AnDF reactors (R1, R2, and R3). The results showed that the AnDF process feeding with LA not only effectively promoted sludge granulation but also improved its PHAs synthesis ability. The granules were quickly observed in R3 after 50 days of cultivation, with an average diameter of 0.69 mm. The maximum PHAs content reached 47.0 wt% in R3, representing a 30.09 % increase compared to R1. Additionally, extracellular polymeric substances (EPS)-producing bacteria observed in granular sludge may be the prime drivers of the formation of PHAs-producing granular sludge (PHAGS), which was defined as granular sludge with an average particle size larger than 0.30 mm and PHAs content above 40 % cell dry weight (CDW) of sludge samples.
分类号：
- 相关文献
作者其他论文 更多>>
-
Anthropogenic activity shapes the assemble and co-occurrence pattern of microbial communities in fishing harbors around the Bohai economic circle
作者：Wang, Nan;Zhang, Huihui;Ding, Xiaokun;Zhang, Di;Jiang, Tao;Wang, Hualong;Wang, Hualong;Ding, Dongsheng;Fan, Xiao;Ding, Renye;Yao, Chenghao
关键词：Bacterial community structures; High-throughput sequencing; Fishing harbours; The bohai economic circle
-
The environmental impact of mask-derived microplastics on soil ecosystems
作者：Song, Jianjincang;Chen, Xianghan;Li, Shiyao;Wang, Maolin;Xu, Heng;Tang, Hao;Dong, Shunwen
关键词：Face mask; Microplastics; Soil properties; Earthworm; Plant growth; Microbial community
-
Comprehensive bioremediation effect of phosphorus-mineralized bacterium Enterobacter sp. PMB-5 on cadmium contaminated soil-crop system
作者：Huang, Huayan;Lei, Ling;Jian, Jiannan;Dai, Jingtong;Xu, Heng;Liu, Huakang;Shangguan, Yuxian;Xu, Heng;Wang, Yang;Xu, Heng
关键词：Cadmium; Induced precipitation; Phosphate -mineralizing bacteria; Soil bioremediation
-
Response of photosynthetic characteristics and antioxidant system in the leaves of safflower to NaCl and NaHCO3
作者：Song, Linlin;Zhou, Haijia;Meng, Li;Yu, Yongliang;Chen, Hongzhi;Feng, Yuwei;Chen, Shuo;Wang, Yue;Zhang, Huihui
关键词：Alkalinity; Antioxidant system; Photosynthesis; Salinity; Transcriptome analysis; WGCNA
-
Two Point Mutations in CYP4CE1 Promoter Contributed to the Differential Regulation of CYP4CE1 Expression by FoxO between Susceptible and Nitenpyram-Resistant Nilaparvata lugens
作者：Zhang, Huihui;Lin, Xumin;Zhang, Lingchun;Liu, Zewen;Yang, Baojun
关键词：nitenpyram resistance; Nilaparvata lugens; CYP4CE1; FoxO
-
Source apportionment and predictable driving factors contribute to antibiotics profiles in Changshou Lake of the Three Gorges Reservoir area, China
作者：Mu, Yue;Cheng, Xian;Fu, Yuanhang;Huang, Weibin;Zhang, Jinzhong;Tang, Bobin;Wang, Jing;Ming, Dewang;Xing, Liangshu
关键词：Antibiotics; Source apportionment; Predictable factors; Machine learning; Changshou Lake
-
Active ingredients biosynthesis and genic response of traditional Chinese medicine Ligusticum sinense cv. Chuanxiong under different cadmium level
作者：Xie, Yanluo;Xie, Xingliang;Li, Yi;Liu, Huakang;Zhao, Yun;Xu, Heng;Peng, Fang
关键词：Cd contaminated soil; L; Chuanxiong; Active ingredients biosynthesis; Physiological response; Comparative transcriptome analysis
