The results showed that petrochemicalwaste water and the polluted deep ground water all had significant mutagenicity on TA98. When S9 is not added, the mutagenicity was more significant.
结果表明，废水及其污染地下深井水对TA98均有较强的致突变作用，不加S9时突变性更强。
2
Coulostatic method has been adopted to determine chemical OxygenDemand (COD) in the waste water of Petrochemical Plant of Daqing Petroleum Administration.
大庆油田化工总厂废水中化学需氧量(COD)的测定采用库仑法。
3
Biological contact oxidation method has been directly used to treat petrochemical organic wastewater with waste terylene silk as filling.