亚磷酸项目环境风险评价实例分析

环境风险评价是化工项目环境影响评价的重点工作之一，结合对亚磷酸生产过程中工艺过程及产污环节进行分析，了解原辅料及主副产品的理化特性，通过对工程潜在的环境风险环节进行识别和风险类型确定，从而科学准确地进行风险源项分析，确定事故发生的最大概率，进而完成事故状态下的后果影响分析，并根据事故产生的后果，提出防范和减缓事故发生后的风险，从组织措施、技术措施等诸多方面提出风险管理方案和应急防范预案，来保障事故一旦发生对环境的影响降低到最小程度。

Example Analysis of Environmental Risk Assessment for Phosphorous Acid Project

Environmental risk assessment is one of major works for evaluating the environmental impacts of chemical industry. Based on the analysis of phosphorous acid production technological process and polluting links, this paper illustrated the physicochemical characteristic of the raw and auxiliary materials and the main products and byproducts. Through distinguishing the links of potential environmental risk and risk types, the risk source item analysis was studied scientifically and accurately to define the probability scale by trouble tree, and then proceed to complete the consequence affect analysis in the various accident states and advanced the prevention and postponement of accident＇ s consequence. This paper also put forward the risk administration plan and the emergency prevention plan from organization and technology measures and so on to minimize the environmental impacts once the accident is happened.