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Removal of cyanobacteria from synthetic and real water by dielectric barrier discharge process
- Source :
- Environmental Science and Pollution Research. 22:18967-18976
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- The feasibility of cyanobacteria removal from freshwater by a dielectric barrier discharge (DBD) process is investigated. Seven commercial and environmental cyanobacteria strains, as well as real algae-laden water, were tested. The removal of the cyanobacteria was evaluated by analyzing the changes in chlorophyll a content, total organic carbon (TOC) concentration, and cell morphology. Nearly total removal of chlorophyll a was achieved within 20 min, while the TOC analysis exhibited an increase-decrease-increase trend in 60 min of treatment, likely due to the oxidation of intracellular and intercellular materials. Observation under light microscopy revealed the disruption of intracellular and intercellular structures within 5 min of DBD treatment and thus supported the TOC analysis. Increasing the salinity of the medium from 0 to 5 parts per thousand (ppt) improved treatment efficiency, where similar level of chlorophyll a removal (around 93%) was achieved in only half the treatment time. Application of DBD on real algae-laden water from a fish farm yielded higher treatment efficiency than in synthetic medium, indicating the promising application of DBD as a means to control cyanobacteria bloom in fresh and estuary water bodies.
- Subjects :
- Chlorophyll
Cyanobacteria
Salinity
Chlorophyll a
Health, Toxicology and Mutagenesis
Fresh Water
Dielectric barrier discharge
Biology
Cell morphology
Water Purification
chemistry.chemical_compound
Environmental Chemistry
Ecotoxicology
Total organic carbon
Chlorophyll A
Environmental engineering
Parts-per notation
Water
General Medicine
biology.organism_classification
Pollution
chemistry
Environmental chemistry
Feasibility Studies
Water Microbiology
Subjects
Details
- ISSN :
- 16147499 and 09441344
- Volume :
- 22
- Database :
- OpenAIRE
- Journal :
- Environmental Science and Pollution Research
- Accession number :
- edsair.doi.dedup.....bee04ad4979e036cb37a9147418148de