Nature-based coagulants for drinking water treatment: An ecotoxicological overview.
Microcystis aeruginosa
coagulation process
ecotoxicology tests
plant-based coagulants
screening study
Journal
Water environment research : a research publication of the Water Environment Federation
ISSN: 1554-7531
Titre abrégé: Water Environ Res
Pays: United States
ID NLM: 9886167
Informations de publication
Date de publication:
Aug 2022
Aug 2022
Historique:
revised:
02
08
2022
received:
30
03
2022
accepted:
09
08
2022
pubmed:
28
8
2022
medline:
31
8
2022
entrez:
27
8
2022
Statut:
ppublish
Résumé
The intensive human activities extensively contaminated water sources making its treatment a problem of paramount importance, especially with the increasing of global population and water scarcity. The application of natural coagulants has become a promising and environmentally friendly alternative to conventional ones. This study was aimed at evaluating the efficiency of four plant extracts namely Agave americana, Carpobrotus acinaciformis, Austrocylindropuntia subulate, and Senicio anteuphorbium as natural coagulants to remove Microcystis aeruginosa cyanobacterium from water. The effects of pH (4, 5, 6, 7, 8 9, and 10) and coagulant dose (5, 10, 15, 20, 25, and 30 mg/L) on the coagulation efficiency were investigated. Results showed that plant-based extracts exhibited high coagulant abilities significantly contributing to the removal of M. aeruginosa cells up to 80% on a case-by-case basis. The ecotoxicity (Daphnia magna, Aliivibrio fischeri, Raphidocelis subcapitata, and Sorghum saccharatum) was absent or presented very slight acute toxicity up to 12.5 mg/L being S. anteuphorbium the least toxic. PRACTITIONER POINTS: Nature-based plant extracts showed removal rates up to 80%. Lower pH and A. subulate and S. anteuphorbium were the most efficient coagulants Toxicity effects were plant extracts-based and dose function. A. subulate and S. anteuphorbium were the least toxic extracts.
Identifiants
pubmed: 36029154
doi: 10.1002/wer.10782
pmc: PMC9545364
doi:
Substances chimiques
Drinking Water
0
Plant Extracts
0
Water Pollutants, Chemical
0
Types de publication
Evaluation Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e10782Subventions
Organisme : University of Naples Federico II
Organisme : MAECI
Informations de copyright
© 2022 The Authors. Water Environment Research published by Wiley Periodicals LLC on behalf of Water Environment Federation.
Références
Sci Total Environ. 2018 May 15;624:461-469
pubmed: 29268218
Bioresour Technol. 2013 Apr;133:9-15
pubmed: 23410531
Ecotoxicol Environ Saf. 2010 Oct;73(7):1602-11
pubmed: 20599272
Microorganisms. 2021 Aug 23;9(8):
pubmed: 34442861
Int J Biochem. 1978;9(3):161-70
pubmed: 25796
Water Res. 2008 Nov;42(18):4683-91
pubmed: 18789473
J Ethnopharmacol. 1999 Jul;66(1):91-6
pubmed: 10432213
Environ Sci Technol. 2008 Apr 1;42(7):2582-9
pubmed: 18505000
Sci Total Environ. 2020 Oct 20;740:139737
pubmed: 32927561
J Exp Bot. 2019 Nov 29;70(22):6549-6559
pubmed: 30597061
J Environ Sci (China). 2014 Nov 1;26(11):2178-89
pubmed: 25458671
Environ Toxicol. 2003 Dec;18(6):395-402
pubmed: 14608609
Environ Sci Pollut Res Int. 2022 Jun;29(28):42601-42615
pubmed: 35384538
Environ Sci Technol. 2010 Oct 1;44(19):7361-8
pubmed: 20831209
Environ Technol. 2015 Mar-Apr;36(5-8):920-8
pubmed: 25241771
Ecotoxicol Environ Saf. 2015 Dec;122:126-35
pubmed: 26232039
Water Res. 2005 Sep;39(14):3247-58
pubmed: 16019052
Water Res. 2007 Jun;41(11):2301-24
pubmed: 17462699
Water Environ Res. 2022 Aug;94(8):e10782
pubmed: 36029154
J Environ Manage. 2016 Dec 15;184(Pt 3):494-503
pubmed: 27789092
Science. 2014 Oct 10;346(6206):175
pubmed: 25301607
Int J Environ Res Public Health. 2017 Dec 21;15(1):
pubmed: 29267198
Chem Rev. 2014 May 14;114(9):4993-5010
pubmed: 24495201