二氧化氯处理煤焦油废水的研究

Study on treatment of coal tar waste water by chlorine dioxide

以某厂实际工程为对象,研究了二氧化氯对含煤焦油废水的去除效果,结果表明处理质量浓度为0 845mg/L的煤焦油水样,在pH=7,温度为45℃,反应时间为1h的条件下,煤焦油的最大去除率为42%.说明煤焦油中含有大量的难降解物质,特别是沥青成分.

Based on practice of the local factory, this paper studies the effect of applying chlorine dioxide to dispose of waste water that contains coal tar. When the coal tar concentration in the waste water is 0.548 mg/L, the results showed that the maximal removal efficiency is 42% worked with pH is at 7, temperature at 45 ℃and react time at 1 hour respectively. It is proved that there are a lot of materials that are difficult to degrade, especially asphaltum in the coal tar.