In order to speed up the construction progress and improve completion quality of sewage treatment project and save project investment

the design leading EPC general contracting mode is adopted for sewage treatment project

allowing designers to participate in all stages of design

equipment procurement

construction and commissioning. The results show that the construction period can be shortened by 20%-30% and the project investment can be saved by 5%-10% under the condition of ensuring the feasibility of the process plan when the high-quality design team participates in the EPC work at each stage. By participating in procurement

equipment procurement costs can be saved by 2%-5%. By participating in the construction service

the rework cost of construction errors can be reduced by about 1%

and the debugging time can be saved by 20% by participating in the commissioning operation.