Aiming at the poor effect of amino nitrogendegradation in conventional refinery oil sewage treatment, the secondary biochemical test was carried with biological aeration filter pool.
The thermal degradation of Poly (phenylene sulfide sulfone) (PPSS) was studied by thermogravimetric analysis in both nitrogen and air to determine the thermal lifetime.
采用热分析的方法对高性能材料聚苯硫醚砜(PPSS)在氮气气氛和空气气氛中的热老化寿命进行了研究。
3
Zinc ion of different concentrations can inhibit the degradation of organic compounds and transformation of nitrogen.