一起河流砷污染事故的处置与监测分析

Emergency Monitoring & Treatment on the As Pollution Accident in a River

介绍了大沙河砷污染事故的处置和监测分析。多介质排查监测摸清了污染的范围和程度,为治理工作提供了科学依据,污染治理措施有效控制了污染的扩散;监测数据表明,治理措施将水中砷污染物沉降至河床使污染水质达标排放。吸附了大量砷化合物的底泥被清理并进一步处置,多介质跟踪监测应持续进行直至不存在潜在危害。

The paper indroduce the course of emergency monitoring treatment on the arsenic pollution accident in the Dasha river.In the early of the emergency,the pollution responds team took effective measures successfully to control the diffusion of pollution..In the meantime stopping the current,screening monitoring and treatment have been done.The area and concentration degree of pollution were clear through multi-media monitoring and the data offered fundamental support to treatment work.The determination results showed that precipitator and oxidizer made large of arsenide deposit dropping down to the riverbed and the polluted water in river became achieving the quality standard.The deposition including As will be cleaned up from the river and be treatmented deeply later.The multi-media determination of As in water,sedment,underground and plants will be continued until latent harm dispear.