摘要：

针对微污染水氨氮浓度高、有机物难降解等问题,进行了麦饭石及其改性处理微污染水的动态实验研究,探讨了不同改性方法处理的麦饭石对微污染水浊度、氨氮和COD的去除效果。结果表明,经Na₂SO₄改性的麦饭石对微污染水的处理效果较好,浊度、氨氮和COD的平均去除率分别为96.57%、67.25%、74.79%,出水浊度、氨氮和pH均可达到饮用水标准,出水COD可达到集中式生活饮用水的Ⅱ类标准。

关键词: 麦饭石, 改性, 微污染水, 动态实验

Abstract:

Aiming at the problems that micro-polluted water is characterized by high concentration of ammonia nitrogen,difficult degradation of organic substances,etc.,dynamic experimental study on the treatment of micro-polluted water by medical stone and its modification have been conducted. The removing effects on turbidity,ammonia-nitrogen and COD of micro-polluted water by different modification methods treated medical stone are discussed. The results show that the removing effect of the medical stone modified by Na₂SO₄ on micro-polluted water is better. The average removing rates of turbidity,ammonia-nitrogen and COD are 96.57%,67.25% and 74.79%,respectively. The turbidity,ammonia-nitrogen and pH of the effluent could reach the drinking water standard,and the COD of the effluent could reach the 2nd-level standard of centralized domestic drinking water.

Key words: medical stone, modification, micro-polluted water, dynamic experiment

中图分类号: 

• X703