Recently, news came from the "Rainwater and Sewage Diversion" project in Dachuan's old urban area, undertaken by Kaiquan. Since its operation in July 2023, the project has been running steadily, successfully solving the problems of sewage overflow in the old urban area and peak water inflow regulation of Dazhou sewage treatment plant. It has built an indestructible green barrier for the ecological environment along the Zhouhe River, a tributary of the upper reaches of the Yangtze River.

Background

This project is located on the banks of the Zhouhe River, a tributary of the upper reaches of the Yangtze River, and is an important project of the Central Environmental Protection Inspection Group of the Yangtze River Economic Belt. Faced with the urgent construction period and complex technical challenges in the early stages of the project, Kaiquan responded quickly with its profound industry experience and innovative capabilities, and tailored two integrated prefabricated pump stations with a diameter of up to 5 meters.

The pump station can process 80000 cubic meters of water per day, accurately distinguishing between rainwater and sewage, enabling rainwater to be directly discharged into the river, while sewage is efficiently transported to the Dazhou sewage treatment plant through a dedicated pipeline network for treatment, effectively avoiding pollution caused by direct discharge of sewage into the river. In addition, the project has also built 14 sets of vacuum flushing devices for storage tanks, with a storage capacity of 40000 cubic meters, and installed two sets of advanced biological deodorization equipment.

About Kaiquan Integrated Prefabricated Pump Station

Compared with traditional concrete structure pump stations, Kaiquan integrated prefabricated pump stations have obvious advantages:

☆ Smaller footprint, improving land utilization efficiency;

☆ Shorter construction period, shortening the construction period;

☆The project budget is lower, saving costs.

About the vacuum flushing device of Kaiquan storage tank

The vacuum flushing system consists of a water storage chamber, a vacuum valve, a vacuum pump, and an electronic control system. The regulating tank using a vacuum flushing system consists of a water storage chamber, a rainwater storage area, and a flushing water discharge area. Its advantages are as follows:

There are no rotating equipment in the pool, and maintenance of all components does not require entering the pool

☆ Good flushing effect (high flushing head)

☆ Less constrained by pool shape

☆ Low energy consumption

After the completion of the project, the problem of sewage overflow along the old urban area of Dachuan District was successfully solved, and the problem of delayed treatment by Dazhou Wastewater Treatment Plant during peak water use was effectively alleviated. The daily treatment capacity can reach the design water volume of 100000 cubic meters, significantly improving the quality of life of residents in Dachuan District and gaining high recognition from customers and the Housing and Urban Rural Development Bureau.