Detail publikačního výsledku

A rapid removal of Phaeocystis globosa from seawater by peroxymonosulfate enhanced cellulose nanocrystals coagulation

Che, Mingda; Shan, Cancan; Huang, Renliang; Cui, Mei; Qi, Wei; Klemes, Jiri Jaromir; Su, Rongxin

Originální název

A rapid removal of Phaeocystis globosa from seawater by peroxymonosulfate enhanced cellulose nanocrystals coagulation

Anglický název

A rapid removal of Phaeocystis globosa from seawater by peroxymonosulfate enhanced cellulose nanocrystals coagulation

Druh

Článek WoS

Originální abstrakt

Cellulose nanocrystals (CNC) are recognized as promising bio-based flocculants for controlling harmful algal blooms (HABs). Due to the charge shielding effect in seawater and the strong mobility of algae cells, CNC can't effectively remove Phaeocystis globosa from seawater. To solve this problem, peroxymonosulfate (PMS) was used to enhance the coagulation of CNC for rapidly removal of P. globosa. The results showed that 91.7% of Chl-a, 95.2% of OD680, and 97.2% of turbidity of P. globosa were reduced within 3 h with the use of 200 mg L-1 of CNC and 20 mg L-1 of PMS. The removal of P. globosa was consisted of inactivation and flocculation. Notably, electron paramagnetic resonance (EPR) spectrums and quenching experiments revealed that the inactivation of P. globosa was dominated by PMS oxidation and 1O2. Subsequently, CNC entrained inactivated algal cells to settle to the bottom to achieve efficient removal of P. globosa. The content of total organic carbon (TOC) and chemical oxygen demand (COD) decreased significantly, indicating that a low emission risk of algal cell effluent was produced in the CNC-PMS system. In view of the excellent performance on P. globosa removal, we believe that the CNC-PMS system has great potential for HABs treatments.

Anglický abstrakt

Cellulose nanocrystals (CNC) are recognized as promising bio-based flocculants for controlling harmful algal blooms (HABs). Due to the charge shielding effect in seawater and the strong mobility of algae cells, CNC can't effectively remove Phaeocystis globosa from seawater. To solve this problem, peroxymonosulfate (PMS) was used to enhance the coagulation of CNC for rapidly removal of P. globosa. The results showed that 91.7% of Chl-a, 95.2% of OD680, and 97.2% of turbidity of P. globosa were reduced within 3 h with the use of 200 mg L-1 of CNC and 20 mg L-1 of PMS. The removal of P. globosa was consisted of inactivation and flocculation. Notably, electron paramagnetic resonance (EPR) spectrums and quenching experiments revealed that the inactivation of P. globosa was dominated by PMS oxidation and 1O2. Subsequently, CNC entrained inactivated algal cells to settle to the bottom to achieve efficient removal of P. globosa. The content of total organic carbon (TOC) and chemical oxygen demand (COD) decreased significantly, indicating that a low emission risk of algal cell effluent was produced in the CNC-PMS system. In view of the excellent performance on P. globosa removal, we believe that the CNC-PMS system has great potential for HABs treatments.

Klíčová slova

Cellulose nanocrystals; Harmful algal blooms; Peroxymonosulfate; Phaeocystis globose

Klíčová slova v angličtině

Cellulose nanocrystals; Harmful algal blooms; Peroxymonosulfate; Phaeocystis globose

Autoři

Che, Mingda; Shan, Cancan; Huang, Renliang; Cui, Mei; Qi, Wei; Klemes, Jiri Jaromir; Su, Rongxin

Rok RIV

2024

Vydáno

01.09.2023

Nakladatel

ACADEMIC PRESS INC ELSEVIER SCIENCE525 B ST, STE 1900, SAN DIEGO, CA 92101-4495

Místo

ACADEMIC PRESS INC ELSEVIER SCIENCE525 B ST, STE 1900, SAN DIEGO, CA 92101-4495

ISSN

0147-6513

Periodikum

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY

Číslo

262

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

10

URL

https://www.sciencedirect.com/science/article/pii/S0147651323008229?via%3Dihub

BibTex

@article{BUT187625,
  author="Che, Mingda and Shan, Cancan and Huang, Renliang and Cui, Mei and Qi, Wei and Klemes, Jiri Jaromir and Su, Rongxin",
  title="A rapid removal of Phaeocystis globosa from seawater by peroxymonosulfate enhanced cellulose nanocrystals coagulation",
  journal="ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY",
  year="2023",
  number="262",
  pages="10",
  doi="10.1016/j.ecoenv.2023.115318",
  issn="0147-6513",
  url="https://www.sciencedirect.com/science/article/pii/S0147651323008229?via%3Dihub"
}