STUDY OF FACTORS CONTROLLING NITRITE BUILDUP IN BIOLOGICAL PROCESSES FOR WATER NITRIFICATION

被引:154
作者
BALMELLE, B [1 ]
NGUYEN, KM [1 ]
CAPDEVILLE, B [1 ]
CORNIER, JC [1 ]
DEGUIN, A [1 ]
机构
[1] SOC AMENAGEMENT URBAIN & RURAL,F-78064 ST QUENTIN,FRANCE
关键词
BIOLOGICAL TREATMENT; NITRITATION; FREE AMMONIA; NITRITE; NITRITE BUILDUP; NITRITATION-DENITRITATION;
D O I
10.2166/wst.1992.0543
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Nitrification processes are well known for certain problems in connection with transient build-up of nitrite ions. Moreover, some works have shown interest in controlling the build-up of this ion, particularly when treatment procedures for nitrogenous pollution are of the nitritation-denitritation type. With this in mind, we have carried out a programme of research to check the main factors responsible for the accumulation of this ion, i.e. [NH4]O, T-degrees, pH, and dissolved O2. The main results highlight the key role played by the free form N-NH3 and by the temperature. This research thus provides answers to a number of practical questions and allows us to envisage setting up new procedures for the treatment of nitrogenous pollution by fixed cultures.
引用
收藏
页码:1017 / 1025
页数:9
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