【摘要】：針對Z市未來水源切換期間可能發(fā)生的黃水現(xiàn)象,通過建立小區(qū)試驗模型,研究了管網(wǎng)中總鐵、溶解氧和硫酸鹽等水質(zhì)參數(shù)在換水期間的變化規(guī)律。研究結(jié)果表明:硫酸鹽濃度可以作為整個水源切換過程的指示性指標,該市主要管網(wǎng)水源切換過程的終點時間約30h,小區(qū)管道在換水期間將發(fā)生鐵超標現(xiàn)象,通過增大管道內(nèi)余氯濃度至0.4mg/L以上,控制管網(wǎng)溶解氧水平在4.50mg/L以上,可在換水7d后有效緩解黃水現(xiàn)象。
[Abstract]:In view of the yellow water phenomenon which may occur during the future water source switching in Z city, the variation of total iron, dissolved oxygen and sulfate in the pipe network during the period of water exchange is studied by establishing the plot test model. The results show that the sulfate concentration can be used as an indicator for the whole process of water source switching. The end point of the water source switching process of the main pipe network in the city is about 30 hours, and the phenomenon of iron exceeding the standard will occur in the pipeline of the residential area during the period of water exchange. By increasing the residual chlorine concentration above 0.4mg/L and controlling the dissolved oxygen level of the pipe network above 4.50mg/L, the yellow water phenomenon can be effectively alleviated after 7 days of water exchange.
【作者單位】： 鄭州自來水投資控股有限公司;
【基金】：鄭州市技術(shù)研究與開發(fā)支持重點科技攻關項目(121PZDGG320) 鄭州市民生科技進步工程項目(131PZDGC143) 國家水體污染控制與治理科技重大專項(2012ZX07404-004)
【分類號】：TU991

【參考文獻】

相關期刊論文 前2條

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本文編號：2170090