PMID- 37842668
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231020
IS  - 2046-2069 (Electronic)
IS  - 2046-2069 (Linking)
VI  - 13
IP  - 43
DP  - 2023 Oct 11
TI  - Poly(vinyl alcohol)/modified porous starch gel beads for microbial preservation 
      and reactivation: preparation, characterization and its wastewater treatment 
      performance.
PG  - 30217-30229
LID - 10.1039/d3ra05371g [doi]
AB  - Poly(vinyl alcohol) (PVA)/modified porous starch (MPS) gel beads were prepared 
      through in situ chemical cross-linking by incorporating with MPS, which was 
      obtained by modifying porous starch (PS) with polyethyleneimine (PEI) and 
      glutaraldehyde (GA). Addition of MPS could improve the storage modulus and the 
      effective crosslinking density (v(e)) of the gel beads, and the mechanical 
      properties were enhanced. The PVA-MPS gel beads were preserved as immobilized 
      microbial carriers for 40 d and reactivated in wastewater. Scanning electron 
      microscope (SEM) observations showed that the beads were highly porous and 
      conducive for microorganism adhesion. The PVA-MPS gel beads were able to remove 
      97% of ammonia nitrogen and 80% of chemical oxygen demand (COD) after 
      reactivation under all four preservation conditions. The abundance of 
      Hydrogenophaga as denitrifying bacteria on PVA-MPS gel beads increased, with 
      abundance of 8.44%, 5.55%, 8.90% and 9.48%, respectively. It proved that the 
      carrier provided a partial hypoxic environment for microorganisms.
CI  - This journal is (c) The Royal Society of Chemistry.
FAU - Lin, Shutao
AU  - Lin S
AD  - Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of 
      Education, Chongqing University Chongqing 400045 China zhangzhicqu@cqu.edu.cn.
AD  - College of Environment and Ecology, Chongqing University Chongqing 400045 China 
      wchjiang@qq.com.
FAU - Chang, Ruiting
AU  - Chang R
AD  - College of Environment and Ecology, Chongqing University Chongqing 400045 China 
      wchjiang@qq.com.
FAU - Cao, Xinyu
AU  - Cao X
AD  - College of Environment and Ecology, Chongqing University Chongqing 400045 China 
      wchjiang@qq.com.
FAU - Zhang, Yongheng
AU  - Zhang Y
AD  - College of Environment and Ecology, Chongqing University Chongqing 400045 China 
      wchjiang@qq.com.
FAU - Chen, Jiabo
AU  - Chen J
AD  - College of Environment and Ecology, Chongqing University Chongqing 400045 China 
      wchjiang@qq.com.
FAU - Jiang, Wenchao
AU  - Jiang W
AD  - College of Environment and Ecology, Chongqing University Chongqing 400045 China 
      wchjiang@qq.com.
FAU - Zhang, Zhi
AU  - Zhang Z
AUID- ORCID: 0000-0001-6306-8449
AD  - Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of 
      Education, Chongqing University Chongqing 400045 China zhangzhicqu@cqu.edu.cn.
AD  - College of Environment and Ecology, Chongqing University Chongqing 400045 China 
      wchjiang@qq.com.
LA  - eng
PT  - Journal Article
DEP - 20231013
PL  - England
TA  - RSC Adv
JT  - RSC advances
JID - 101581657
PMC - PMC10573856
COIS- The authors declare that they have no known competing financial interests or 
      personal relationships that could have appeared to influence the work reported in 
      this paper.
EDAT- 2023/10/16 06:48
MHDA- 2023/10/16 06:49
PMCR- 2023/10/13
CRDT- 2023/10/16 04:56
PHST- 2023/08/08 00:00 [received]
PHST- 2023/10/09 00:00 [accepted]
PHST- 2023/10/16 06:49 [medline]
PHST- 2023/10/16 06:48 [pubmed]
PHST- 2023/10/16 04:56 [entrez]
PHST- 2023/10/13 00:00 [pmc-release]
AID - d3ra05371g [pii]
AID - 10.1039/d3ra05371g [doi]
PST - epublish
SO  - RSC Adv. 2023 Oct 13;13(43):30217-30229. doi: 10.1039/d3ra05371g. eCollection 
      2023 Oct 11.