Medical Waste Water Treatment by Membrane Filtration

Earar, Kamel; Ciucă, Ion; Antohe, Magda Ecaterina; Harabor, Valeriu; Constantin, Iulian; Calin, Alina; Tiutiuca, Carmen; Bratu, Ana Magdalena; Beznea, Adrian; Olteanu, cristian

doi:10.37358/mp.22.1.5571

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…), inorganic pollutants (such as phosphates and polyphosphates [8,9], heavy metals [16,34,35], etc. ), biohazardous residues [36,37], etc., in discharged wastewater.…”

Section: Introductionmentioning

confidence: 99%

Saving Energy in Biological Wastewater Treatment by Using Extremely Low-Frequency Electric Field—Pilot-Scale Study

et al. 2023

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The results of a pilot-scale study on the influence of electric field use for stimulating the active sludge in the biological purification tank of a small capacity wastewater treatment plant (up to 600 m3/day) are presented. Through specific comparative chemical tests (DO, COD, N-NH4, and Pt) it was found that, by applying a sinusoidal electric field of 5 Vrms/m at 49.9 Hz on the active sludge suspension, the overall pollutant denitrification process speed is doubled compared with the reference case when no stimulation is used. Also, under identical operating conditions, the residual pollutant content of the biological treatment tank outlet water is reduced approximately three times for COD and approximately two times for N-NH4 and Pt compared to the reference tank. These findings lead to the conclusion that, by stimulating the active sludge microbial activity of the wastewater treatment plants by a sinusoidal electric field of 5 Vrms/m at 49.9 Hz, the time of the biological purification treatment can be reduced by approx. 50%. This leads to a corresponding decrease in energy consumption, which usually represents more than 30% of a wastewater treatment plant’s specific electricity consumption.

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“…), inorganic pollutants (such as phosphates and polyphosphates [8,9], heavy metals [16,34,35], etc. ), biohazardous residues [36,37], etc., in discharged wastewater.…”

Section: Introductionmentioning

confidence: 99%

Saving Energy in Biological Wastewater Treatment by Using Extremely Low-Frequency Electric Field—Pilot-Scale Study

et al. 2023

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Synthesis of a Hybrid Membrane of Polysulfone with Zinc Oxide for Cleaning Textile Effluents

Alves de Sousa,

Souto Silva,

Alves de Souza

et al. 2024

ACS Omega

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This study aimed to investigate the influence of the ZnO concentration on the structure of a membrane for effluent filtration, varying this concentration from 0% to 3%. To analyze the results, X-ray diffraction tests, Fourier-transform infrared spectroscopy, apparent porosity, atomic force microscopy, and scanning electron microscopy were used, all of which were employed for the characterization of the produced membranes. The solution simulating the effluent was analyzed before and after the filtration process to assess the filtration results. The conducted tests reported results for filtered solution flow, turbidity, pH, dissolved oxygen, and electrical conductivity. All these results indicated that the membrane with the best performance in terms of cleanliness and the amount of filtered effluent was the one produced with a 13% hybrid polysulfone loaded with 1% ZnO in its structure.

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Medical Waste Water Treatment by Membrane Filtration

Cited by 2 publications

References 16 publications

Saving Energy in Biological Wastewater Treatment by Using Extremely Low-Frequency Electric Field—Pilot-Scale Study

Saving Energy in Biological Wastewater Treatment by Using Extremely Low-Frequency Electric Field—Pilot-Scale Study

Synthesis of a Hybrid Membrane of Polysulfone with Zinc Oxide for Cleaning Textile Effluents

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