Enhanced nitrite build-up in proportion to increasing alklinity/NH4+ ratio of influent in biofilm reactor

被引：24

作者：

Hwang, BH

Hwang, KY

Choi, ES

Choi, DK

Jung, JY

机构：

[1] Korea Inst Sci & Technol, Div Environm & Proc Technol, Seoul 130650, South Korea

[2] Korea Univ, Dept Civil & Environm Engn, Seoul 136701, South Korea

来源：

BIOTECHNOLOGY LETTERS | 2000年 / 22卷 / 16期

关键词：

alkalinity; biofilm; biofilter; nitrification; nitrite build-up;

D O I：

10.1023/A:1005645317410

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

When the alkalinity/NH4+ ratio increased from 4.1 to 9.4, the ammonium removal rate increased from 45 to 90 mg NOx-N l(-1) h(-1). An increase in alkalinity/NH4+ ratio was a major reason for higher pH and free ammonia (FA) concentration in the reactor. The high concentration of FA showed a selective inhibition for Nitrobacter, which caused enhanced nitrite build-up in a biofilm reactor.

引用

页码：1287 / 1290

页数：4

共 8 条

[1]

[Anonymous], 1995, Standard methods for the examination of water and wastewater, V19th

[2]

ANTHONISEN AC, 1976, J WATER POLLUT CON F, V48, P835

[3] NITRIFICATION AT LOW-LEVELS OF DISSOLVED-OXYGEN WITH AND WITHOUT ORGANIC LOADING IN A SUSPENDED-GROWTH REACTOR [J].