Sixteen bacterial strains which can produce flocculants were screened from oil field produced water and injection waste water, after repetitious sampling and separating.

• 通过多次采样,反复分离,从油田采出水和回注污水中分离得到16株产絮凝剂菌株,经复筛,得到1株具有较高絮凝活性的细菌。