【摘要】 设置了23个采样井,分三层采集63个地下水样品。对原广州氮肥厂地块地下水三氮化合物的含量及分布状况进行了研究。结果表明,原厂区地块地下水三氮化合物平均含量远远高于背景点含量,83%的水样中的氨氮和80%的水样中的亚硝酸盐超过地下水Ⅲ类标准,氨氮和亚硝酸盐超标最为严重的地点位于硫酸车间为中心的区域、旧机制车间和安装车间,复肥车间、尿素车间。更多还原

【Abstract】 In order to research the concentration and distribution of 3N compound in the groundwater of the original Guangzhou Fertilizer Plant,23 well were set which divided into three layers to collect 63 samples of groundwater.The results showed that the average concentration of 3N compound of the samples was much higher than the background points.83% of the water samples’ concentration of ammonia-nitrogen exceeded the criteria of Class Ⅲ groundwater.Furthermore,80% of water samples’ concentration of nitrite also exceeded it.The serious areas,whose ammonia nitrogen and nitrite concentration exceeded the criteria more than the other parts,were the center of sulfuric acid plant,the old mechanisms plant,the installation plant,the compound fertilizer plant and the urea plant.更多还原