人工快速渗滤系统处理温榆河原水试验研究

提出以天然河砂与沸石和火山岩混合的人工快速渗滤填料改进方式,考察了新型人工快速渗滤系统处理温榆河原水的可行性与净化效果。结果表明,相比单独天然河砂填料,混合填料下人工快速渗滤系统出水的CODCr、NH3—N和TN去除率得到显著提高。当天然河砂与沸石混合比为3:1时,系统出水CODCr、NH3—N、TN和TP的平均去除率分别达到了64.7%、97.1%、31.8%和44.9%。当天然河砂与火山岩混合比为3:1时,系统出水CODCr、NH3—N、TN和TP的平均去除率分别达到了58.2%、98.6%、40.8%和34.5%。运行稳定后,天然河砂与沸石混合填料的滤池平均水力负荷达到了4.1m/d和3.6m/d,分别是单独天然河砂的1.52倍和1.33倍。

Study of treatment of raw water from Wenyu River by constructed rapid infiltration system

In this paper,the mixture of natural river sand and volcanic rocks and zeolites was brought forward to be the improved filling in the constructed rapid infiltration(CRI),and the the feasibility and the effectiveness of CRI system for Wenyu River water purification was also investigated.Experimental results indicated that the average removals of CODCr,NH3-N and TN of CRI system was improved significantly,compared with natural river sand alone.In the case of the mixture natural river sand and zeolite with rat...