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生物滤池处理微污染原水研究

Study on Mechanism and Purifying Function of Biological Pool in Treating Micro-polluted Raw Water

【作者】 徐志霞

【导师】 杨云龙;

【作者基本信息】 太原理工大学 , 市政工程, 2006, 硕士

【摘要】 鉴于我国大多数城市的饮用水水源污染的日益加重,传统的净水工艺在有效去除源水中的污染物质,包括溶解性有机物、NH4+-N、NO2--N、TOC、CODMn、Fe、Mn等方面显得越来越力不从心。饮用水水质不同程度地威胁着人们的健康和安全,因此必须改革现有水厂的常规净水处理系统以适应除污染的需要。为了实现这一目标,本论文提出以生物滤池工艺处理微污染源水,生物滤池除污效果显著,操作管理方便,是一种经济、有效和保障工艺出水饮用安全的方法。 本研究通过试验研究,深入探讨了生物滤池对滏阳河源水中的浊度、色度、NH4+-N、NO2--N、CODMn、TOC、Fe、Mn等指标的去除效果。在水温为8~20℃,在滤速8m/h,进水溶解氧在7mg/L以上,反冲洗1~2次/d的情况下,经过20~30天的自然挂膜培养,生物滤池的运行保持良好的处理效果。 实验结果表明:生物滤池净水系统对原水中的NH4+-N、NO2--N、CODMn、TOC、浊度、色度、铁、锰的去除率分别为80%~95%、70%~90%、20%~30%、20%~45%、70%~95%、40%、82%、85%左右。滤后水浊度能保持在1NTU以下,能达到国家生活饮用水标准。生物滤池净水工艺系统在去除原水污染物效果方面明显优于常规净水工艺系统。

【Abstract】 As the aggravation of source drinking-water pollution of most cities in our country, it is becoming more and more difficult for the conventional water purification system to remove contaminations efficiently, including the dissolved organic matter, ammonia-N, nitrite, total organic carbon, CODMn , Fe, Mn, etc. The drinking water quality menaces people’s health and safety in vary extent. Hence, we have to innovate the conventional water purification system in order to adapt to removing the contamination. In order to improve effectively the outlet water quality, the article examines the application of biological filter for micro-polluted source water. This process is an effective、 convenient and economical technology, ensure the outlet water quality safety.Further study has been conducted to evaluate the performance of biological filter water purification system removing turbidity, color, ammonia-N, nitrite, CODMn, total organic carbon, iron and manganese etc. index of the Fuyang River through pilot-plant. When water temperature is 8— 20℃, filtration rate of 8m/h, inlet water dissolved oxygen level remains more

  • 【分类号】TU991.2
  • 【被引频次】5
  • 【下载频次】365
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