Promotion of polyhydroxyalkanoates-producing granular sludge formation by lactic acid using anaerobic dynamic feeding process
文献类型： 外文期刊
作者： Xi, Jiaxing 1 ; Fang, Wenjie 3 ; Zhang, Huihui 1 ; Zhang, Jinzhong 2 ; Xu, Heng 4 ; Zheng, Mingxia 1 ;
作者机构： 1.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
2.Southwest Univ, Coll Resources & Environm, Chongqing Key Lab Agr Resources & Environm, Chongqing 400715, Peoples R China
3.Zhejiang Chem Prod Qual Inspection Stn Co Ltd, Hangzhou 310023, Peoples R China
4.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
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.
- 相关文献
作者其他论文 更多>>
-
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
-
Efficient degradation of 2,4-dichlorophenol in water by sequential electrocatalytic reduction and oxidation with a Pd-MWCNTs/Ni-foam electrode
作者：Huang, Weibin;Liu, Andi;Fu, Yuanhang;Zhang, Jinzhong;Tang, Bobin
关键词：Pd-MWCNTs; Ni-foam electrode; 2; 4-Dichlorophenol; Sequential electrocatalytic reduction and oxidation; Mineralization; Electro-Fenton oxidation; Degradation mechanism
-
Interactions and quantification of multiple influencing factors on cadmium accumulation in soil-rice systems at a large region
作者：Mu, Yue;Cui, Jingxin;Liu, Andi;Shi, Qiujun;Wei, Shiqiang;Zhang, Jinzhong;Wang, Shuai;Wang, Jing
关键词：Cadmium accumulation; Soil -rice systems; Influencing factors; Interactions; Quantification
-
Electrochemical oxidation of carbamazepine in water using enhanced blue TiO2 nanotube arrays anode on porous titanium substrate
作者：Huang, Weibin;Fu, Yuanhang;Guo, Chunhui;Zhang, Jinzhong;Huang, Yue;Tang, Bobin
关键词：Electrochemical oxidation; Carbamazepine; BlueTiO(2) nanotube arrays anode; Porous titanium substrate; Degradation mechanism
-
Does biochar inhibit the bioavailability and bioaccumulation of As and Cd in co-contaminated soils? A meta-analysis
作者：Tian, Xiaosong;Zhang, Jinzhong;Zhao, Xiulan;Tian, Xiaosong;Zhang, Jinzhong;Zhao, Xiulan;Wang, Dingyong;Chai, Guanqun
关键词：Biochar; Arsenic (As); Cadmium (Cd); Soil remediation; Bioaccumulation; Meta-analysis
-
Phytoremediation of secondary saline soil by halophytes with the enhancement of gamma-polyglutamic acid
作者：Mu, Yue;Tang, Dong;Zhang, Jinzhong;Tang, Dong;Mao, Liang;Zhang, Dan;Zhou, Pei;Zhi, Yuee;Tang, Dong;Mao, Liang
关键词：Secondary saline soil; gamma-Polyglutamic acid; Halophytes; Phytoremediation; Enhanced remediation
-
Persulfate-enhanced degradation of ciprofloxacin with SiC/g-C3N4 photocatalyst under visible light irradiation
作者：Zhu, Hongqing;Zhang, Jinzhong;Zhu, Hongqing;Yang, Bing;Yang, Jingjing;Yuan, Ying
关键词：Metal-free photocatalyst; Potassium persulfate; Antibiotic; Degradation pathways; Biotoxicity change
