Ludwigia Glandulosa (Walter, 1788) as a Potential Bio Indicator of Water Quality

MOROȘAN, Ioana-Claudia; LOBIUC, Andrei; IVĂNESCU, Lăcrămioara Carmen; Olaru, Stefan Mihaita; Costica, Naela; Zamfirache, Maria Magdalena

doi:10.26471/cjees/2020/015/137

Cited by 2 publications

(1 citation statement)

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“…Recent studies have shown that some plants, such as Ludwigia glandulosa [27], can be used to assess surface water quality.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Stimulation of Microbial Activity in Wastewater Treatment: Experimental Equipment

Tokos¹,

Jipa²,

Marinescu³

et al. 2021

EEA

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A system for electromagnetic stimulation of microorganisms' activity from the active sludge of wastewater treatment plants was developed and preliminarily tested. Through electrochemical, gravimetric, XRD, and SEM-EDAX measurements, it was found that austenitic stainless steel 18/8 presents good stability to AC polarization in wastewater. Preliminary determinations performed through the dielectric spectroscopy technique indicated that the activated sludge's microbial flora is sensitive to 50 ± 0.1 Hz. The stimulation system developed and put into service on the biological aerobic treatment bioreactor consists of a pair of polarizing electrodes, made of perforated 18/8 stainless steel sheet, electrically connected to a power supply, which at 50 Hz is capable of debiting adjustable voltages between 5 and 24 Vrms at a maximum current of 5 A. Preliminary in situ measurements showed that following the stimulation of the microorganisms from the sludge suspension, as a result of an applied electromagnetic field of approximately 4.5 V/m at 50 Hz, the metabolism of residues is accelerated substantially (organic residues determined by oxygen demand decrease by about 42 %, nitrogen/ammonium content by about 44% and total phosphorus by about 50 % which results in an increase in free oxygen concentration by about 71 %).

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“…Recent studies have shown that some plants, such as Ludwigia glandulosa [27], can be used to assess surface water quality.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Stimulation of Microbial Activity in Wastewater Treatment: Experimental Equipment

Tokos¹,

Jipa²,

Marinescu³

et al. 2021

EEA

View full text Add to dashboard Cite

show abstract

Interactions of Extremely Low-Frequency Electric Field with the Active Sludge Live Materia from Wastewater Treatments

Tokos¹,

Bartha²,

Jipa³

et al. 2021

2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)

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Ludwigia Glandulosa (Walter, 1788) as a Potential Bio Indicator of Water Quality

Cited by 2 publications

References 0 publications

Electromagnetic Stimulation of Microbial Activity in Wastewater Treatment: Experimental Equipment

Electromagnetic Stimulation of Microbial Activity in Wastewater Treatment: Experimental Equipment

Interactions of Extremely Low-Frequency Electric Field with the Active Sludge Live Materia from Wastewater Treatments

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