Feasibility study of a point of use technique for water treatment using plant-based coagulant and isolation of a bioactive compound with bactericidal properties

Sustainable and greener solution for water treatment problems is the persistent need of the hour. The use of Strychnos potatorum is familiar among the indigenous communities living in the drought ridden regions of South Asia where they depend on turbid surface water to meet their drinking water requ...

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Bibliographic Details
Published inSeparation science and technology Vol. 55; no. 1; pp. 112 - 122
Main Authors Patchaiyappan, Arunkumar, Sarangapany, Saran, Saksakom, Yvan Aaron, Devipriya, Suja P.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 02.01.2020
Taylor & Francis Ltd
Subjects
Alkalinity
Bactericidal activity
bacteriophage
Bioactive compounds
Biological activity
Coagulants
Disinfection
Dosage
Drinking water
Drought
E coli
Feasibility studies
Indigenous peoples
Ionic strength
microbial disinfection
Microorganisms
natural coagulant
Phages
Seeds
Strychnos potatorum
Surface water
Turbidity
turbidity removal
Water requirements
Water treatment
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Summary:Sustainable and greener solution for water treatment problems is the persistent need of the hour. The use of Strychnos potatorum is familiar among the indigenous communities living in the drought ridden regions of South Asia where they depend on turbid surface water to meet their drinking water requirements. In the present study, the microbial disinfection efficacy of this indigenous natural coagulant, S. potatorum is studied in synthetic turbid water. Batch experiments spiked with Escherichia coli and MS-2 bacteriophage on treatment with natural coagulant, seed extract of S. potatorum showed 3.3-4.3 log and 1.3 log reduction of E. coli and MS-2 bacteriophage, respectively. Effect of coagulant dosage, pH, alkalinity, and ionic strength on turbidity removal is reported. The optimum dose ranges from 0.2 to 1 mg/L for different turbidity regimes. A bioactive compound, methyl palmitoleate was isolated from the methanolic extract of the seeds and characterized. The bactericidal activity of both the aqueous extract and isolated bioactive compound were also demonstrated.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2018.1560332