Solubility and physical composition of rice husk ash silica as a function of calcination temperature and duration

Autor: Ryoko Sekifuji, Van Chieu Le, Masafumi Tateda, Hiroshi Takimoto

Publikováno v: International Journal of Recycling of Organic Waste in Agriculture, Vol 10, Iss 1, Pp 19-27 (2021)

Purpose The solubility of silica is a key parameter affecting its suitability as a rice fertilizer. Therefore, this study determined the effect of calcination temperature and duration on the physical composition of silica derived from rice husk ash.

Externí odkaz: https://doaj.org/article/1685cd90071a43309afb8c52ee9cf50c

An Alternative Method to Estimate Influent Concentration Using On-site Lab-scale Activated Sludge Reactors

Autor: Mitsuharu Terashima, Bing Liu, Van Chieu Le, Quang Chanh Nguyen Duong, Thi Ha Thanh Nguyen, Van Quang Tran, Hidenori Harada, Hidenari Yasui, Van Tuan Le

Publikováno v: Journal of Water and Environment Technology. 15:220-232

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0284131061157136a4ef09eb93c2c133
https://doi.org/10.2965/jwet.17-015

Kinetics and Mechanistic Aspects of As(III) Oxidation by Aqueous Chlorine, Chloramines, and Ozone: Relevance to Drinking Water Treatment

Autor: Michael C. Dodd, Ngoc Duy Vu, Adrian Ammann, Van Chieu Le, Reinhard Kissner, Hung Viet Pham, The Ha Cao, Michael Berg, Urs von Gunten

Publikováno v: Environmental Science & Technology. 40:3285-3292

Kinetics and mechanisms of As(III) oxidation by free available chlorine (FAC-the sum of HOCl and OCl-), ozone (O3), and monochloramine (NH2Cl) were investigated in buffered reagent solutions. Each reaction was found to be first order in oxidant and i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44f4d9d8ef3bdea2b2d5622a6b9ab9d3
https://doi.org/10.1021/es0524999

Determination of optimal dose of allylthiourea (ATU) for the batch respirometric test of activated sludge.

Autor: Liu B; Faculty of Environmental Engineering, The University of Kitakyushu, 1-1, Hibikino Wakamatsu, Kitakyushu, Japan E-mail: hidenari-yasui@kitakyu-u.ac.jp., Terashima M; Faculty of Environmental Engineering, The University of Kitakyushu, 1-1, Hibikino Wakamatsu, Kitakyushu, Japan E-mail: hidenari-yasui@kitakyu-u.ac.jp., Quan NT; Department of Environmental Technology, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam., Ha NT; Department of Environmental Technology, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam., Van Chieu L; Department of Environmental Technology, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam., Goel R; Hydromantis Environmental Software Solutions, Inc., 407 King Street West, Hamilton, Ontario, Canada., Yasui H; Faculty of Environmental Engineering, The University of Kitakyushu, 1-1, Hibikino Wakamatsu, Kitakyushu, Japan E-mail: hidenari-yasui@kitakyu-u.ac.jp.

Publikováno v: Water science and technology : a journal of the International Association on Water Pollution Research [Water Sci Technol] 2018 Jul; Vol. 77 (11-12), pp. 2876-2885.