新型脱氮材料治理地下水源硝酸盐污染的试验研究  

Experimental Study on Treatment of Nitrate Pollution inGroundwater Sources Witnew Denitrification Materials

作　　者：盛化军 池俊杰 SHENG Huajun;CHI Junjie(Hefei Water Supply Group Co.,Ltd.,Anhui Hefei 230000;Hefei General Machinery Research Institute Co.,Ltd.,Anhui Hefei 230000,China)

机构地区：[1]合肥供水集团有限公司,安徽合肥230000 [2]合肥通用机械研究院有限公司,安徽合肥230000

出　　处：《广州化工》2025年第5期166-168,共3页GuangZhou Chemical Industry

摘　　要：地下水源是我国大部分城市目前主要的供水来源,目前部分区域仍存在不同程度的硝酸盐污染,如何绿色高效地针对低浓度硝酸盐污染进行深度脱氮是研究的关键问题之一。为了开发新型脱氮方法,本文利用微波改性后的硫铁矿和石灰石类材料制备一体化的新型自养反硝化脱氮材料,处理NO_(3)^(-)-N为20 mg/L,DO为4 mg/L,pH为7.5的模拟地下水源污水。在不同水力停留时间条件下对比新型脱氮材料的处理效果,实验结果表明在室温,水力停留时间1.5 h条件下,脱氮效率可达到90%以上,且没有亚硝酸盐的累积。本试验研究既提供了废弃尾矿资源化循环利用的思路,又为高效治理地下水低污染浓度的硝酸盐提供了工程应用的实际参考价值。Groundwater is currently the main source of water supply for most cities in China,and there are varying degrees of nitrate pollution.How to achieve green and efficient deep denitrification for low concentration nitrate pollution is one of the key issues in research.Microwave modified pyrite and limestone materials were used to prepare an integrated autotrophic denitrification material for simulated wastewater with NO_(3)^(-)-N 20 mg/L,DO_(4) mg/L,and pH 7.5.Treatment effects of new denitrification materials under different hydraulic retention time conditions were studied.When the hydraulic retention time was 1.5 h,the denitrification efficiency can reach over 90%at room temperature and without the accumulation of nitrite.This study not only provided ideas for the recycling and utilization of tailings resources,but also provided reference value for the treatment of low pollution concentration nitrate groundwater in engineering applications.

关 键 词：自养脱氮 硝酸盐 地下水源 

分 类 号：X52[环境科学与工程—环境工程]