CAJ | 학술논문

本研究采用模拟实验对闽江流域氨氮的降解规律进行研究，降解系数采用稳态一维降解模型进行分析计算，闽江上游流域氨氮的平均降解系数为0.140～0.260 d -1，中下游流域氨氮的平均降解系数为0.099～0.203 d-1。结果表明，闽江上游流域氨氮自净能力比中下游流域的自净能力好，古田溪断面的氨氮平均降解系数低于全国的平均值，说明氨氮自净能力相对较弱，本研究为确定流域水环境容量和纳污能力及制定污染物总量控制提供科学依据。
본연구채용모의실험대민강류역안담적강해규률진행연구，강해계수채용은태일유강해모형진행분석계산，민강상유류역안담적평균강해계수위0.140～0.260 d -1，중하유류역안담적평균강해계수위0.099～0.203 d-1。결과표명，민강상유류역안담자정능력비중하유류역적자정능력호，고전계단면적안담평균강해계수저우전국적평균치，설명안담자정능력상대교약，본연구위학정류역수배경용량화납오능력급제정오염물총량공제제공과학의거。
Degradation coefficients of ammonia nitrogen in Minjiang Basin were studied by indoor simu-lation experiment .One-dimensional steady degradation model was used for analysis and evaluation , showing that the average ammonia nitrogen degradation coefficients of the upper Minjiang Basin ranges from 0.140 d-1 to 0.260 d -1 and the coefficients of the middle and lower reaches ranges from 0.099 d-1 to 0.203 d-1 .The investigation also indicated that ammonia self-purification ability of the upper basin was relatively high , comparing to low degradation rate in middle and lower reaches .The average degradation coefficients of Gutian section were lower than national average .This indicated that ammo-nia self-purification capability is weak .This study will help to determinate water environmental capaci-ty, pollutant carrying capacity and total amount control of pollutants .