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Pathak, D.R., Hiratsuka, A. and Yamashiki, Y. (2011) Influence of Anthropogenic Activities and Seasonal Variation on Groundwater Quality of Kathmandu using Multivariate Statistical Analysis. In: Peters, N.J., et al., Eds., Assessment of Water Quality under Changing Climate Conditions, Proceedings of Symposium H04 Held during IUGG2011, IAHS Red Book, Melbourne, Volume 348, 67-72.

has been cited by the following article:

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

  AUTHORS: Akira Hiratsuka, Yugo Tomonaga, Yoshiro Yasuda, Ryoji Tsujino

  KEYWORDS: Sound Waves (Frequency), Total Hardness (Ca2+, Mg2+), Nitrogen (N), Phosphorus (P), Water Treatment

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.6 No.15, November 26, 2014

  ABSTRACT: 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.