Six Gram(+) superiority bacteria were isolated from the active sludge of the Aeration Tank and from the outlet water of wastewater treatment process of coking-plants.

• 从焦化厂曝气池活性污泥和废水处理工艺出水中筛选出6株革兰氏阳性优势菌；根据菌株、菌落形态和大量生化实验将菌株鉴定到属.