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Water Pollution Control in Asia#R##N#Proceeding of Second IAWPRC Asian Conference on Water Pollution Control Held in Bangkok, Thailand, 9–11 November, 1988 | 1988

THE EFFECTS OF SEDIMENTS ON THE BEHAVIOUR OF NITROGEN IN SHALLOW URBAN RIVER

Kai Qin Xu; Mitsuru Takasaki; Atsuhisa Sato

ABSTRACT In order to estimate the behavior of nitrogen in the polluted river, the natural in-situ riverbed gravels and water samples were used in this experimental study. In particular, by using the nitrification inhibitor, the release rate of ammonia nitrogen from attached biofilms on riverbed was determined, and by considering the release of ammonia, the rates of nitrification and denitrification were obtained.


Water Science and Technology | 1990

The Submerged Biofilm Process as a Pre-Treatment for Polluted Raw Water for Tap Water Supply

Mitsuru Takasaki; H. Y. Kim; Atsuhisa Sato; M. Okada; Ryuichi Sudo


Environmental Engineering Research | 1995

Influence of Ratio of Grain Size of Filter to Length of Slender Type Diatoms on Deposit in Rapid Sand Filter

Hiroshi Konno; Nobuhiro Izawa; Atsuhisa Sato; Yasumoto Magara


Environmental Engineering Research | 1995

EXPERIMENTAL STUDIES ON FOULING OF OF MEMBRANE BY ORGANIC COLORED MATTER

Ken-ichi Fukushi; Yoneji Sato; Atsuhisa Sato; Masato Oda; Koki Goto


Environmental Engineering Research | 1994

Characteristics of Deposit in Filter Using Model Materials for Slender Type Diatoms and Effective Parameters to Clogging of Rapid Sand Filter

Hiroshi Konno; Atsuhisa Sato; Yasumoto Magara


Water supply | 1990

Comparison of coagulation mechanism between powdered activated carbon and kaolin suspensions with cationic polyelectrolytes

Shyh-Fang Kang; Atsuhisa Sato; Koki Goto


Journal of environmental conservation engineering | 1990

Effect of the removal of suspended solid by biological oxidation treatment of raw water on another water quality.

Mitsuru Takasaki; Atsuhisa Sato


Annual report of the Society for the Promotion of Construction Engineering | 1990

researchon water Quality of Gosyo and Tsunatori Dam

Atsuhisa Sato; Koki Goto; Noboru Chiba; Yukihiro Kumagai


Annual report of the Society for the Promotion of Construction Engineering | 1989

An Investigation on Conservation of Reservoir Water Quality

Atsuhisa Sato; Yoshinobu Ishibashi; Masamitsu Harada; Nobuo Chiba; Yukihiro Kumagai


Water Science and Technology | 1988

Evaluation of the NH4-N and DOC Removal Efficiency by Submerged Biofilm Process in Tap Water Supply Pretreatment System

Mitsuru Takasaki; Masamitsu Harada; Atsuhisa Sato

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Hiroshi Konno

Tohoku Institute of Technology

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Ken-ichi Fukushi

Hachinohe Institute of Technology

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M. Okada

Tokyo University of Agriculture and Technology

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