Case 2

A company's aeration transformation plan of the sewage plant in Chengdu 

Product performance + quick construction = winner

Overview of the sewage plant

The plant is the industrial sewage treatment plant, with a daily sewage treatment capacity of 150,000t.

GSD undertakes transformation of aeration basins.

Fan power required by every two groups of aeration basins before the replacement is 183.3KW.

Fan power required by every two groups of aeration basins after the replacement is 165.8KW.

Energy conservation comparison calculation:

Every two groups before the replacement:

      Monthly electric charge: 183.3kw.h×24h×30 days× RMB 0.8= RMB 105,580 

      Annual electric charge: RMB 105,580 ×12= RMB 1,266,960 

Every two groups after the replacement:

      Monthly electric charge: 165.8kw.h×24h×30 days× RMB 0.8= RMB 95,501 

      Annual electric charge: RMB 95,501 ×12= RMB 1,146,012

Annual cost savings for every two groups: RMB 1,266,960-RMB 1,146,012 =RMB 120,948 

Annual electric charge savings of the plant:  RMB 120,948  × 7 / 2 = RMB 423,318