一个扑热息痛生产企业的环境影响评价

Environmental impact assessment for a paracetamol production enterprise

以原材料收集为起点,扑热息痛产品产出为终点,采用生命周期评价方法对天津某典型扑热息痛生产企业进行环境影响评价。结果表明,该企业每生产1t扑热息痛的酰化过程、脱色过程、结晶过程的综合环境影响对全过程的综合环境影响贡献率分别为94.14%、5.82%、0.04%,主要环境影响为海洋水生生态毒性、化石燃料消耗、水体富营养化和全球变暖。为减小扑热息痛生产过程的环境影响,提出扑热息痛生产工艺采用常温生产工艺、使用高效低耗设备、提高工艺水的重复利用率和增加蒸气的使用量、提高余热回收利用率等合理化建议。

Environmental impact assessment for a typical paracetamol production enterprise in Tianjin was conducted taking the raw materials of the drug as the starting,and the paracetamol output as the end using the life cycle evaluation method.Results showed that the comprehensive environmental impact of acylation,decolorization and crystallization processes accounted for 94.14%,5.82% and 0.04% of the whole process for 1 tparacetamol production,respectively.The main environmental impacts were marine aquatic ecotoxicity,fossil fuel consumption,water eutrophication and global warming.In order to diminish the environmental impacts of paracetamol production,some reasonable suggestions were given,such as production under normal temperature,use of high efficiency and low energy consumption equipment,and increase of the use of water recycling,steam and residual heat.