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AN EXPERIMENTAL-STUDY TO SUPPRESS SCUM FORMATION ACCOMPANYING THE ABNORMAL GROWTH OF NOCARDIA BY ADDING OZONE IN THE AERATION TANK
被引：4
作者：
GOI, M
NISHIMURA, T
KURIBAYASHI, S
OKOUCHI, T
MURAKAMI, T
机构：
[1] KAWASAKI CITY SEWAGE BUR,TODOROKI KANKYO CTR,KAWASAKI KU,KAWASAKI,KANAGAWA,JAPAN
[2] JAPAN INST WASTEWATER ENGN TECHNOL 228,TOSHIMA KU,TOKYO,JAPAN
关键词：
ACTINOMYCETES;
NOCARDIA;
SCUM;
OZONE;
NITRIFICATION;
SLUDGE SETTLEABILITY;
D O I：
10.2166/wst.1994.0563
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ;
0830 ;
摘要：
In order to suppress scum formation of activated sludge accompanying the abnormal growth of Nocardioform Actinomycetes (Nocardia sp.) in the final sedimentation tank, etc., an experimental study was made by adding ozone (at ozone consumption 2-6 ml/l) in the aeration tank. The abnormal growth of Nocardia almost disappeared, and foaming in the aeration tank and scum formation of activated sludge in the final sedimentation tank were not seen, showing that the scum suppression effect of ozone addition was obvious, The treated water quality was little affected except for accelerated nitrification by ozone addition, and the sludge settleability was improved.
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页码：231 / 234
页数：4
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