Application of Ultrasonic Waves for the Improvement of Water Treatment

Self Cite

Section: Resultsmentioning

confidence: 99%

“…That is, the value was slightly decreasing by 4 CFU/mL for 1 hr and by 5 CFU/mL for 2 hrs compared with the 0 min., respectively. (FYR; See our past paper[73])…”

mentioning

confidence: 89%

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

Hiratsuka¹,

Wakae²

2019

Self Cite

“…In previous study [5], an examination for the improvement of water treatment process using ultrasonic waves (28 KHz) was carried out. As a result, It was confirmed that ultrasonic wave affects water quality such as content of calcium (Ca), magnesium (Mg), namely, hardness, sodium (Na) and potassium (K).…”

Section: Experimental Methodsmentioning

confidence: 99%

“…5 KHz, This wind-bell hung inside a basket to be played by the wind (an electric fun). (In general, Japanese wind-bell is often made of metal or glass, and some of the famous Japanese Furins are "EdoFurin" from Tokyo and "Nambu-Furin" from Iwate prefecture.…”

Section: Experimental Methodsmentioning

confidence: 99%

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

Hiratsuka

Tomonaga²,

Yasuda³

et al. 2014

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Application of sound waves is one of the novel techniques for the improvement of water treatment process. In this study, various sound waves such as 1) ultrasonic wave, 2) music box, and 3) windbell were irradiated to water and wastewater for removing contaminants such as nitrate, phosphorus and BOD/COD. As a result, a possibility of improvement of water and wastewater treatment process using sound waves with various frequencies was proposed.

“…And there we first measure the murmuring sounds (vibration/sound waves/frequency) of the stream and then show the improvement dependence of the water quality by the murmuring sounds on a map. Authors have investigated the improvement dependence of the water quality when irradiating the sounds to various kinds of water using several frequencies including ultrasonic wave [2] [3] so far. Water is changing freely and easily accepting the wavelength of all the sounds [4] [5].…”

Section: Introductionmentioning

confidence: 99%

Study on Sustainable Water Resource Conservation—Toward Deepening of Homo Environmentics

Hiratsuka¹,

Tomonaga²,

Wakae³

et al. 2018

Self Cite

To unlearn the meaning of a sustainable water resource conservation is now an essential issue in using of sustained, sound, and high-quality water in the world. In this paper, a water quality purification by the Schumann frequencies was first considered through the murmuring sound of upper reach at the mountain stream (Kyoto Pref., Japan) regarding the conservation of water resources. Second, water is changing freely and easily accepting the wavelength of all the sounds. We therefore referred to a flow and dynamic equilibrium to realize and understand the water quality purification process. Finally, a "consciousness only Buddhist philosophy" of water quality as an analogical approach was introduced to realize and understand the water purification process. As a result, we have confirmed the water purification capability by Schmann frequencies in an experiment on water quality. And through the experiment, we have realized the importance/significance to find the meaning for a person's primary meaningless such as 1) meaning connection among life, environment, and economics as a condition of human life, 2) energy, entropy and fluctuation under law of thermodynamics, 3) a metaphor between water quality and mutual possession of the ten worlds based on conscious-only theory, and 4) sense of wonder through the water purification process.