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我厂是生产能力为 2 .0万ｔ/ａ合成氨的小氮肥厂。随着国家环保执法力度的加大 ,我厂被江苏省环保委员会列为 1 999年 6月底前必须达标排放水污染物的工业企业。我厂已实现造气污水闭路循环使用 ,且清水和污水全部分流 ,但是排放水中的氨氮含量仍严重超标 ( 1 998年排放废水中
I plant is a production capacity of 2. 0 Wan t / a ammonia nitrogen fertilizer plant. With the intensification of national environmental protection law enforcement, our factory was listed as Jiangsu Province Environmental Protection Committee by the end of June 1999 must reach the standard discharge of water pollutants in industrial enterprises. Our factory has realized closed-loop gas-making waste water use, and all the water and sewage diversion, but the discharge of ammonia nitrogen content is still seriously exceeded (in 1998 emissions of waste water