Utilization of sewage to cultivate green algae has high economic value, and also produces high purification effect on sewage, thus reducing the cost of construction of sewage greatment works.

• 采用污水培养绿藻，一方面可以利用绿藻的经济价值，同时对污水的处理效果很高，可以节省污水处理建筑物的建筑费用。