Towards a high-rate operation of contact stabilization process: A microscopic view of carbon capture properties

被引:1
|
作者
Fu, Sibo [1 ]
Li, Dong [1 ]
Fu, Kunming [2 ]
Zhang, Xiaohang [1 ]
Zhu, Yanjun [1 ]
Yang, Sen [1 ]
Zeng, Huiping [1 ]
Zhang, Jie [1 ,3 ]
机构
[1] Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100124, Peoples R China
[2] Beijing Univ Civil Engn & Architecture, Sino Dutch R&D Ctr Future Wastewater Treatment Tec, Key Lab Urban Stormwater Syst & Water Environm, Minist Educ, Beijing 100044, Peoples R China
[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China
基金
中国国家自然科学基金;
关键词
High-rate contact stabilization; Sludge retention time; Extracellular carbon capture; Intracellular carbon storage; Acyl-homoserine lactones; GLYCOGEN-ACCUMULATING ORGANISMS; WASTE-WATER TREATMENT; REMOVAL; BIOSORPTION; PHOSPHORUS; SEWAGE; SYSTEM;
D O I
10.1016/j.envres.2024.120113
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Carbon capture performance is a key factor determining the chemical energy recovery potential of the high-rate contact stabilization (HiCS) process. However, the mechanisms of organic carbon capture are complex, involving surface adsorption, extracellular adsorption, and intracellular storage. A unique characteristic of the HiCS process is its low sludge residence time (SRT). Unfortunately, the influence of SRT on carbon capture has not been thoroughly studied, especially in terms of the underlying mechanisms. In this study, the microscopic changes in carbon capture performance during the transition from a conventional contact stabilized (CS) system to a highrate mode of operation were demonstrated using intracellular carbon sources, extracellular polymeric substances (EPS), signaling molecules, and microbial community assays. The results showed that the extracellular carbon adsorption and intracellular carbon storage performance increased, and the microbial community structure changed significantly with converting the CS system to the high-rate operation mode. The enhancement of extracellular carbon adsorption performance mainly relied on the growth of EPS, which was accomplished by the strong growth of the relative abundance of the dominant bacterial group Cloacibacterium within the HiCS system, offsetting the negative effect produced by the decline of acyl-homoserine lactones. 98 mgCOD/gSS, 343 mgCOD/ gSS, and 500 mgCOD/gSS of polyhydroxyalkanoates (PHAs) per sludge unit were obtained at SRT-24d, 8d, and 2d, respectively, suggesting that the HiCS system is more advantageous for rapid PHAs production.
引用
收藏
页数:10
相关论文
共 50 条
  • [21] An "in situ templating" strategy towards mesoporous carbon for high-rate supercapacitor and high adsorption capacity on dye macromolecules
    Liu, Kunlin
    Wang, Jiuzhou
    Yang, Ting
    Wang, Hong
    Wang, Chengyang
    Chen, Mingming
    CARBON, 2020, 164 : 19 - 27
  • [22] Effects of carbon nanotubes on the high-rate discharge properties of nickel/metal hydride batteries
    Lv, J
    Tu, JP
    Zhang, WK
    Wu, JB
    Wu, HM
    Zhang, B
    JOURNAL OF POWER SOURCES, 2004, 132 (1-2) : 282 - 287
  • [23] Characteristics of aligned carbon nanotubes synthesized using a high-rate low-temperature process
    Liao, Kun-Hou
    Ting, Jyh-Ming
    DIAMOND AND RELATED MATERIALS, 2006, 15 (09) : 1210 - 1216
  • [24] Coalesced carbon onion anode: Towards high-rate anode materials for lithium-ion capacitor
    Laleh, Amir Reza Aref
    Rajagopalan, Ramakrishnan
    Randall, Clive
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2019, 257
  • [25] Microscopic properties and stabilization mechanism of a supercritical carbon dioxide microemulsion with extremely high water content
    Ren, Hong-Rui
    Xu, Qin-Qin
    Yin, Jian-Zhong
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2022, 607 : 1953 - 1962
  • [26] Fostering the performance and stability of the high-rate activated sludge process: Biomass dynamics, oxygen consumption and clarifier operation
    Canals, Joan
    Cabrera-Codony, Alba
    Carbo, Oriol
    Turolla, Andrea
    Garcia, Sara
    Lema, Juan M.
    Monclus, Hector
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2025, 13 (03):
  • [27] The function of carbon in the negative plates of VRLA batteries exposed to high-rate partial-state-of-charge operation
    Moseley, Patrick T.
    World of Metallurgy - ERZMETALL, 2008, 61 (03): : 173 - 178
  • [28] Combined high-rate contact stabilization and chemically enhanced primary treatment for enhanced recovery of organic matter and biogas from sewage
    Song, Minsu
    Park, Jihye
    Lee, Joonyeob
    Bae, Hyokwan
    BIORESOURCE TECHNOLOGY, 2024, 413
  • [29] Live Fast, Die Young: Optimizing Retention Times in High-Rate Contact Stabilization for Maximal Recovery of Organics from Wastewater
    Meerburg, Francis A.
    Boon, Nico
    Van Winckel, Tim
    Pauwels, Koen T. G.
    Vlaeminck, Siegfried E.
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2016, 50 (17) : 9781 - 9790
  • [30] High-rate activated sludge system for carbon management - Evaluation of crucial process mechanisms and design parameters
    Jimenez, Jose
    Miller, Mark
    Bott, Charles
    Murthy, Sudhir
    De Clippeleir, Haydee
    Wett, Bernhard
    WATER RESEARCH, 2015, 87 : 476 - 482