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author:

Liu, Yihui (Liu, Yihui.) [1] | Wang, Yingmu (Wang, Yingmu.) [2] (Scholars:王颖慕) | Fan, Gongduan (Fan, Gongduan.) [3] (Scholars:范功端) | Su, Xiaoxuan (Su, Xiaoxuan.) [4] | Zhou, Jian (Zhou, Jian.) [5] | Liu, Deming (Liu, Deming.) [6] (Scholars:刘德明)

Indexed by:

EI SCIE

Abstract:

In this study, thiosulfate-driven denitratation (TDD) system was successfully established under optimal S/N molar ratio of 1.00, with nitrite accumulation efficiency (NAE) of 82.24 +/- 17.09%. This work highlighted that thiosulfate significantly preferred the reduction of nitrate than nitrite. However, after the depletion of thiosulfate, the in-situ formed intermediate product element sulfur (S0) served as the main electron donor, and significantly favored the reduction of nitrite than nitrate, which constrained nitrite accumulation and nitrate removal. In addition, metagenomic sequencing revealed that the functional denitratation species might be Thiobacillus_sp._65-29, but the occurrence of Nir-annotated species would decrease nitrite accumulation. Under S/N ratio of 1.00, the decreased abundant Nir-annotated species (e.g., Thiobacillus_sp.), as well as the down-regulated quorum sensing interactions between Nar- and Nir-annotated species were key microbial metabolisms of high NAE in the TDD system. Overall, this work provides new sight into the metagenome-base functional species and metabolic potential of thiosulfate-driven denitratation.

Keyword:

Elemental sulfur formation Functional species Metagenomics Nitrite accumulation Thiosulfate-driven denitratation

Community:

  • [ 1 ] [Liu, Yihui]Fuzhou Univ, Coll Civil Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Wang, Yingmu]Fuzhou Univ, Coll Civil Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Fan, Gongduan]Fuzhou Univ, Coll Civil Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Liu, Deming]Fuzhou Univ, Coll Civil Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Su, Xiaoxuan]Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Fujian, Peoples R China
  • [ 6 ] [Zhou, Jian]Chongqing Univ, Key Lab Gorges Reservoir Reg Ecoenviron 3, Minist Educ, Chongqing 400045, Peoples R China

Reprint 's Address:

  • 王颖慕

    [Wang, Yingmu]Fuzhou Univ, Coll Civil Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China

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Source :

BIORESOURCE TECHNOLOGY

ISSN: 0960-8524

Year: 2021

Volume: 341

1 1 . 8 8 9

JCR@2021

9 . 7 0 0

JCR@2023

ESI Discipline: BIOLOGY & BIOCHEMISTRY;

ESI HC Threshold:104

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 11

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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