钻井废水的生物强化处理简

从受钻井废水污染的土壤样品中筛选菌株进行生物处理实验，确定7株菌进行菌剂配伍。通过正交实验剔除可能有抑制作用的菌株，并确定菌剂各组成菌株的最佳配比，制成复合微生物菌剂。考察5种添加物对菌剂的影响，结果显示，当硫酸铵的添加量为20 mg/L时降解率为60%，高于其他添加物。生物强化实验结果显示，投加菌剂的反应器对钻井废水的平均降解率为42%，比未投加菌剂的对照实验的平均降解率（16%）高，而且耐冲击负荷性和降解性能稳定性优于对照实验。

Bioaugmentation treatment of drilling wastewater

Some strains that were used in biological treatment experiments were isolated from soil sample which was polluted by drilling wastewater and seven strains were selected as composing strains for microorganism agents.The strains which acted inhibition to other strains were rejected through orthogonal experiments and the proportions of these strains were determined by orthogonal experiments. The five additives' effects on microorganisms agent were tested, and it showed that when the dosage of (NH₄)₂SO₄ was 20 mg/L, the degradation was 60%, better than other additives. The bioaugmentation experiments showed that the average degradation of addition of microorganisms agent was 42%, which was higher than the control experiment (16%) without addition of microorganisms. And it also showed good resist load impact and stable biodegradation.