Peroxydisulfate Peroxidation of Cyanobacterial Cells Catalyzed by Non-Graphitic N-Doped Nanodiamonds: Fid-Bau Portal

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Peroxydisulfate Peroxidation of Cyanobacterial Cells Catalyzed by Non-Graphitic N-Doped Nanodiamonds

Yuting Wang / Wenshu Li / Junli Liu / Xiaoge Wu / Chen Ling / Yuwei Pan

Non-graphitic nitrogen-doped nano-scale diamonds were tested in the laboratory for their ability to activate peroxydisulfate for treating Microcystis-laden water. Flocculation was observed and up to 99.8% of the cyanobacterial cells were removed. The flocs’ composition showed that nano-scale diamonds with activated persulfate promoted the release of protein-like and humic-like substances during the treatment, which could have promoted agglomeration. Comprehensive analyses suggest that both radical and radical-free mechanisms were involved. Extracellular substances associated with the Microcystis cells were modified to function as active bioflocculants, leading to self-flocculation and sedimentation.

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Peroxydisulfate Peroxidation of Cyanobacterial Cells Catalyzed by Non-Graphitic N-Doped Nanodiamonds

Yuting Wang / Wenshu Li / Junli Liu / Xiaoge Wu / Chen Ling / Yuwei Pan

Non-graphitic nitrogen-doped nano-scale diamonds were tested in the laboratory for their ability to activate peroxydisulfate for treating Microcystis-laden water. Flocculation was observed and up to 99.8% of the cyanobacterial cells were removed. The flocs’ composition showed that nano-scale diamonds with activated persulfate promoted the release of protein-like and humic-like substances during the treatment, which could have promoted agglomeration. Comprehensive analyses suggest that both radical and radical-free mechanisms were involved. Extracellular substances associated with the Microcystis cells were modified to function as active bioflocculants, leading to self-flocculation and sedimentation.

Peroxydisulfate Peroxidation of Cyanobacterial Cells Catalyzed by Non-Graphitic N-Doped Nanodiamonds

Yuting Wang / Wenshu Li / Junli Liu / Xiaoge Wu / Chen Ling / Yuwei Pan

Non-graphitic nitrogen-doped nano-scale diamonds were tested in the laboratory for their ability to activate peroxydisulfate for treating Microcystis-laden water. Flocculation was observed and up to 99.8% of the cyanobacterial cells were removed. The flocs’ composition showed that nano-scale diamonds with activated persulfate promoted the release of protein-like and humic-like substances during the treatment, which could have promoted agglomeration. Comprehensive analyses suggest that both radical and radical-free mechanisms were involved. Extracellular substances associated with the Microcystis cells were modified to function as active bioflocculants, leading to self-flocculation and sedimentation.

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Title:

Peroxydisulfate Peroxidation of Cyanobacterial Cells Catalyzed by Non-Graphitic N-Doped Nanodiamonds

Contributors:

Yuting Wang (author) / Wenshu Li (author) / Junli Liu (author) / Xiaoge Wu (author) / Chen Ling (author) / Yuwei Pan (author)

Published in:

Water, Vol 15, Iss 15, p 2768 (2023)

Publication date:

2023

ISSN:

DOI:

https://doi.org/10.3390/w15152768

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

<i>Microcystis aeruginosa</i> , self-flocculation , pre-oxidation , persulfate , nano diamonds , no-radical mechanisms , Hydraulic engineering , TC1-978 , Water supply for domestic and industrial purposes , TD201-500

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