摘要
通过室内模拟试验,研究了不同含沙量、不同粒径的黄河泥沙对水中氨氮降解速率与过程的影响。结果表明:在0～10 g/L内,随着泥沙含量的增加,氨氮的降解速率变大;含沙量一定,泥沙粒径越小,氨氮的降解速率越快;相同泥沙含量下,原泥沙对氨氮降解的促进作用要优于清洗后的泥沙。
The influence of different concentrations and sizes of particle in the Yellow River on ammonia nitrogen degradation was investigated under laboratory conditions. The results indicated that the rate of ammonia nitrogen degradation would increase with the sediment concentration in a range of 0 to 10 g/L under the laboratory conditions. Under certain sediment concentrations, the rate of ammonia nitrogen degradation would increase with particulate sizes decreased. The ammonia nitrogen degradation of natural sediment would be superior to the sediment after cleaning under same sediment concentration
出处
《供水技术》
2011年第1期8-10,18,共4页
Water Technology
基金
中国科学院生态环境研究中心开放基金(2009-5)
关键词
泥沙
氨氮
降解
粒径
sediment
ammonia nitrogen
degradation
particle size
