农药草铵膦产污系数研究

产污系数的研究是第二次全国污染源普查的基础之一。本文选取了两家以格氏工艺生产草铵膦农药原药的企业进行采样和调查,基于废水实测法和废气物料衡算法进行个体产污系数与品种产污系数核算,分析了两家企业产污差异的影响因素。结果表明:企业A的个体产污系数为化学需氧量1.09×106g t-1、氨氮969g t-1、总氮2.10×103g t-1、总磷750g t-1、挥发性有机物1.59×103kg t-1;企业B的个体产污系数为化学需氧量2.34×106g t-1、氨氮53g t-1、总氮795g t-1、总磷124g t-1、挥发性有机物335 kg t-1;品种产污系数为化学需氧量1.73×106g t-1、氨氮499g t-1、总氮1.43×103g t-1、总磷429g t-1、挥发性有机物748kg t-1。通过对两家企业产污系数影响因素的深入分析,发现原辅料的使用与投用量、有机溶剂和设备的使用不同是导致产污水平差异的主要因素。

Study on pollutants producing coefficient of pesticide glufosinate

The research on pollutants producing coefficient is one of the bases of the Second National Pollution Source Survey. In this study, two factories that produce glufosinate pesticide using the Grignard technology were selected for sampling and investigation. Based on the experimental measurement method for waste water and the material balance algorithm for waste gas, the individual and whole pollutants producing coefficient were calculated, and we analyzed the difference in influencing factors of pollution production between the two factories. The results showed that the individual pollutants producing coefficient in Factory A were chemical oxygen demand 1.09×10₆ g·t^-1, ammonia nitrogen 969 g·t^-1, total nitrogen 2.10×10₃ g·t^-1, total phosphorus 750 g·t^-1, volatile organic matter 1.59×10₃ kg·t^-1; the individual pollutants producing coefficient in Factory B were chemical oxygen demand 2.34×10₆ g·t^-1, ammonia nitrogen 53 g·t^-1, total nitrogen 795 g· t^-1, total phosphorus 124 g·t^-1, volatile organic compounds 335 kg·t^-1. The whole pollutants producing coefficient of glufosinate were chemical oxygen demand 1.73×10₆ g·t^-1, ammonia nitrogen 499 g·t^-1, total nitrogen 1.43×10₃ g·t^-1, total phosphorus 429 g·t^-1, volatile organic matter 748 kg·t^-1. Through the in-depth analysis of the influencing factors of the pollutants producing coefficient in the two factories, it was found that the differences between the use of raw and auxiliary materials, organic solvents, and equipment were the main factors on the pollutants producing level.