Improvement of Water and Wastewater Treatment Process Using Various Sound Waves—A Consideration from the Viewpoint of Frequency

Hiratsuka, Akira; Tomonaga, Yugo; Yasuda, Yoshiro; Tsujino, Ryoji

doi:10.4236/jwarp.2014.615135

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…Of course viewing the outside of the audible range, it is thought that the bacterial killing by the ultrasonic Figure 19. Relation between the state of the water and waves is possible [74]. As is seen from the Table 4, only the number of general bacteria has not met the standard decision in this experiment.…”

Section: Resultsmentioning

confidence: 89%

Study on Sustainable Rainwater Resource Utilization—Towards Deepening of Homo Environmentics

Hiratsuka¹,

Wakae²

2019

JWARP

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Section: Resultsmentioning

confidence: 89%

Study on Sustainable Rainwater Resource Utilization—Towards Deepening of Homo Environmentics

Hiratsuka¹,

Wakae²

2019

JWARP

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“…Hiratsuka et al [23] have presented application of sound waves for the improvement of water treatment process. In that study, various sound waves such as: ultrasonic wave, music box, and wind-bell were used to water and wastewater for removing contaminants.…”

Section: Introductionmentioning

confidence: 99%

The Industrial Production of Water Dedicated to Absorption of Gases

Yelkin¹,

Reszke²,

Binkiewicz³

et al. 2021

JWARP

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The paper presents a flow plasma reactor permitting modification of the properties of water/aqueous solutions by stochastic resonance amplification of vibrations of selected chemical species in water with electromagnetic noise generated during a plasma discharge. The main parameters characterizing the quality for super-pure water, tap water and water from the intake in Besko (Poland) before and after the process in the plasma reactor were presented for comparison. In addition, the 17 O NMR (the full width at half maximum) and electrospray ionization mass spectrometry (ESI MS) methods were used to determine differences in physicochemical parameters between the untreated and plasma-treated water. It has been established that the water subjected to plasma treatment shows much different gas absorption properties than the untreated water samples, as a function of temperature and pressure, in this paper we report exemplary data for CO 2 , oxygen and acetylene. The improved gas absorption properties of the plasma-treated water make it attractive for the use in industrial processes. It is worth pointing to a great capacity of the new reactor (4000 l/h), and low energy consumption (20 MJ/h) for the treatment of the above mentioned volume flow rate of water.

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“…Moreover, Shaobin et al [28] and Sarvaiya and Kothari [29] showed that exposing microorganisms to MSs promote the microbial growth, production of metabolites (pigments), and increase the antibiotic susceptibility. As well as, studies found that the MSs are be able to treat water and wastewater by removing chemical oxygen demand (COD), biological oxygen demand (BOD), phosphor, nitrate, and increasing the production of biogas [30,31].…”

Section: Introductionmentioning

confidence: 99%

Biogenic Zinc Oxide Nano-structures Differentiation under Musical Sounds

Bakir

Hamimed

Landoulsi

et al. 2021

Preprint

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A new emerging and green approach was used to synthesis nanomaterials. In the present study, we report the use of Yarrowia lipolytica supernatant in the synthesis of zinc oxide nanoparticles (ZnO NPs). During the synthesis, the reactional medium was subjected to different musical sounds (MSs) such as Quran sound, Tunisian music, and Flamingo. The obtained nanoparticles were analysed using UV–vis spectroscopy, which showed a peak near to 258 nm characteristic of ZnO NPs. The Fourier transform infrared spectrum was established to identify the functional groups that recorded absorption bands at 564 and 574 cm− 1 confirming the presence of ZnO NPs. While, X-ray diffraction revealed the high purity crystalline ZnO NPs and indicated the effectiveness of MSs on the crystal size by having the smallest size on Quran sound (20.9 nm). Moreover, ZnO NPs morphology was affected by the MSs that varied from spherical agglomerated to nanotubular shapes. These results reveal the successful use of MSs in the synthesis of smaller and controlled nanoparticles.

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Improvement of Water and Wastewater Treatment Process Using Various Sound Waves—A Consideration from the Viewpoint of Frequency

Cited by 5 publications

References 5 publications

Study on Sustainable Rainwater Resource Utilization—Towards Deepening of Homo Environmentics

Study on Sustainable Rainwater Resource Utilization—Towards Deepening of Homo Environmentics

The Industrial Production of Water Dedicated to Absorption of Gases

Biogenic Zinc Oxide Nano-structures Differentiation under Musical Sounds

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