發(fā)布時間：2018-02-10 17:16

  本文關(guān)鍵詞： 水質(zhì)模擬 MIKE 污水處理廠 錢塘江河口　出處：《人民長江》2016年24期 　論文類型：期刊論文

【摘要】：為分析七格污水處理廠提標(biāo)改造對錢塘江河口水質(zhì)的改善情況,利用MIKE21建立了錢塘江河口閘口至鹽官的平面二維潮流和水質(zhì)模擬分析模型。模型驗證后,選取90%保證率枯水年的實測河道地形和大潮期實測潮位過程,分析了七格污水處理廠提標(biāo)改造工程對錢塘江河口水質(zhì)變化的影響。結(jié)果表明:七格污水處理廠提標(biāo)改造后,錢塘江河口NH3-N劣于Ⅱ,Ⅲ,Ⅳ類限值的最大影響范圍分別減少了約22%,89%和50%,最大值和平均值分別降低了約21%和10%;TP劣于Ⅱ,Ⅲ,Ⅳ類限值的最大影響范圍分別減少了約19%,85%和33%,最大值和平均值分別降低了約22%和7%;而CODMn劣于Ⅱ,Ⅲ,Ⅳ類限值的最大影響范圍分別減少了約84%,0%和0%,最大值和平均值分別降低了約7%和3%。七格污水處理廠的提標(biāo)改造可有效削減排入錢塘江的污染物總量。
[Abstract]:In order to analyze the improvement of Qiantang River Estuary water quality by standard raising of seven sewage treatment plants, a two-dimensional tidal current and water quality simulation analysis model from the gate of Qiantang River Estuary to Yanguan was established by using MIKE21. In this paper, the influence of the upgrading project of seven sewage treatment plants on the change of water quality in Qiantang River estuary is analyzed by selecting the measured river channel topography in the year of 90% guarantee rate dry water and the process of observed tidal level in the spring tide period. The results show that after the improvement of the standard of seven sewage treatment plants, the change of water quality of Qiantang River estuary is analyzed. In Qiantang River Estuary, the maximum influence range of NH3-N inferior to class 鈪，

本文編號：1501031