【摘要】 将电气石粉应用于油田采出废水CODCr的处理中,实验表明处理效果主要受反应时间、电气石用量、电气石粒径和溶液pH值等因素的影响。通过正交实验得到处理的最佳条件为:溶液pH=9,反应时间60min,电气石用量200g/L,电气石粒径100μm,此时油田采出废水CODCr降至68.46mg/L,去除率达到了82.25%。结合紫外线、红外线、超声波等条件进行电气石粉的CODCr降解实验,结果表明,这3种方法是有效的,其中结合超声波处理使去除率达到了90%以上,结合紫外线使处理时间降低了83%。本实验的进行为电气石这种环境矿物材料拓宽了应用领域。更多还原

【Abstract】 This paper has studied the effect of tourmaline powder on the treatment of CODCr in oilfield waste water under different conditions.The result shows that the rate of CODcr degradation is mainly affected by such factors as processing time,quality,particle diameter and aqueous pH.Under the conditions of processing time 60 min,tourmaline powder quality 200 g/L,particle diameter 100μm and pH 9.0,the CODCr of oilfield waste water was reduced to 68.46 mg/L,and the cleaning rate reached 82.25%.For the purpose of finding the best treatment conditions,the effect of tourmaline powder on the CODCr in oilfield waste water was studied in combination with the means of ultraviolet ray,infrared ray and ultrasonic wave.The results show that these three methods are effective.The treatment rate exceeded 90% when the study was combined with ultrasonic wave,and the processing time was shortened by more than 83% when the study was combined with ultraviolet ray.This experiment has broadened the application field of this kind of environmental mineral material.更多还原