水环境中有机污染综合指标监测方法及其进展

Monitoring Methods and Progress of Organic Pollutants in Water Environment

  • 摘要: 化学需氧量是判断水体受到有机化合物污染的主要指标之一,也是我国水环境污染物排放总量的主要控制指标.经典的化学需氧量测定方法采用化学氧化剂氧化,将测定结果折成消耗氧的量,常用的化学氧化剂有重铬酸钾和高锰酸钾,也有采用紫外UV254 的吸收来判断水体的有机污染程度.这些方法简单易行,但费时、费力,目前通过现代科学技术和化学计量学发展在线监测和遥感反演法测定化学需氧量,可以综合海量监测数据,更有效、客观地评价水体受有机污染的程度和范围.

     

    Abstract: Chemical oxygen demand is one of the main indicators for judging organic compound pollution in water bodies and for controlling the total amount of pollutants discharged into the water environment in our country.The classic Chemical oxygen demand test uses chemical oxidants,such as potassium dichromate and potassium permanganate,to break down the results into the amount of oxygen consumed,ultraviolet UV254 is also used to determine the absorption of organic pollution of water.These methods are simple and easy to implement,but they are time-consuming and laborious.At present,through modern science and technology and the development of Chemometrics on-line monitoring and remote sensing inversion methods to measure COD,huge amounts of monitoring data can be integrated,more effective and objective assessment of the extent and scope of organic pollution of water bodies.

     

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