Effect of preozonation on improvement of settleability of solid in highly concentrated organic wastewater of Japanese wh

Abstract： Solid-liquid separation of the wastewater is very difficult because of high viscosity and high SSconcentration. In this study, the effectiveness of preozonation on improving the settleability of the solids in wheatand sweet potato wastewaters was investigated using a bench-scale system and pilot treatment system respectively.Results showed that solid-liquid separation in the wheat wastewater was greatly improved by the decanter in thesystem(SS reduction from 24100 mg/L to 100 mg/L). However, preozonation practice did not show a significanteffect on solid-liquid separation of the sweet potato wastewater. Effect of preozonation on solid-liquid separationbetween wheat and sweet potato wastewater showed different. 作 者： Masafumi Tateda    Masanori Fujita    Michihiko Ike    QUI Yen-feng    Satoru Kokubo   作者單位： Masafumi Tateda(College of Environmental Technology, Toyama Prefectural University, Japan)

Masanori Fujita,Michihiko Ike(Department of Environmental Engineering, Graduate School of Engineering, Osaka University, Japan)

QUI Yen-feng(Espec Co., Ltd., Japan)

Satoru Kokubo(JC Engineering Co. , Ltd., Japan) 

期 刊： 環境科學學報(英文版)  ISTICSCI   Journal： JOURNAL OF ENVIRONMENTAL SCIENCES  年，卷(期)： 2004, 16(2)  分類號： X703  Keywords： Japanese spirit-distillery wastewater    wheat wastewater    sweet potato wastewater    London dumping convention    ozonation    settleability    solid-liquid separation   

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