条子河四平段水污染特征及成因分析
Study on Water Pollution Characteristics and Causes in Siping Section of the Tiaozi River
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摘要: 通过对2001~2010年条子河流域水文水质和污染源数据的统计分析,掌握该流域水环境时空变化规律及其产生的原因。研究表明:ρ(COD)呈先升后降的变化趋势,而ρ(NH3-N)波动性较小,总体趋势为缓慢下降;二者都具有明显的季节性变化规律。此外,流域内点源有降低的趋势,而非点源却在逐年增加;降水对ρ(COD)有稀释作用,却增加了河水中NH3-N的量;污水处理厂的处理效率仍需提高。Abstract: Through the statistical analysis of hydrology and water quality data and pollution source data from 2001 to 2010, we master the temporal and spatial regularity of water environmental variation and its reasons. The results show that ρ(COD) presents the trend of first going up then going down, while ρ(NH3-N) is less volatility and the overall trend is slow drop. They have significant seasonal variation. In addition, pollutants concentration of point source has a trend of decrease in watershed, whereas that of non-point source is increasing year by year. Precipitation dilutes ρ(COD) in the river, instead, increases the amount of NH3-N in the river. The sewage treatment plant's treatment efficiency still needs to improve.
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Key words:
- Tiaozi River /
- Water Pollution /
- COD /
- NH3-N /
- Siping Section
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