A novel biofilm-membrane reactor for ammonia oxidation at low concentrations

被引：7

作者：

Watanabe, Y ^{[1
]}

Kimura, K ^{[1
]}

Okabe, S ^{[1
]}

Ozawa, G ^{[1
]}

Ohkuma, N ^{[1
]}

机构：

[1] HITACHI PLANT ENGN & CONSTRUCT CO LTD,CHIBA 271,JAPAN

来源：

WATER SCIENCE AND TECHNOLOGY | 1997年 / 36卷 / 01期

关键词：

biofilm-membrane reactor; diffusion layer; mass transport limitation; model simulation; nitrification;

D O I：

10.2166/wst.1997.0011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

For the oxidation of low concentrations of NH4+-N, conventional biofilm reactors such as a rotating biological contactor encounter difficulty due to mass transport limitation of NH4+-N. Therefore, the authors have developed a novel biofilm-membrane reactor, in which biomass is fixed on the surface of rotating membrane disks to enhance NH4+-N transport into the biofilm. Three long-term bench-scale experiments were carried out and sufficient nitrification efficiency was obtained even at low levels of NH4+-N. The experimental results were evaluated in comparison with model simulation. (C) 1997 IAWQ. Published by Elsevier Science Ltd.

引用

页码：51 / 60

页数：10

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