The water quality of collective bathing water in Ji'nan water source area is obviously improved.
Liu Wen
"this silting is the largest ever in Tianshan irrigation area. After the silting is completed, the water quality will have an obvious improvement." Yan Yunkun, director of the engineering section of Tianshan electric irrigation management office, Pingyin, Ji'nan, Shandong, told reporters. After more than 40 years of operation, Tianshan irrigation district began to concentrate on dredging. The dredging will last for two and a half months. Reporters at the project site saw that 4 excavators continued to clean up the river bed to bring nearly 2 meters of living space. The Yuqing lake reservoir and the Queshan reservoir were also dredged after the flood season ended last year.
as the first station created by Ji'nan water ecological civilization city, the water supply space of Tianshan irrigation area continues to extend, which makes the river bed silt up seriously. "The height of the dam is 36.2 meters from the original design to the present 38.3 meters, and the river bed has accumulated more than 2 meters of silt, especially the upper reaches of the river, which caused the water surface to be raised seriously and over flow energy." The capacity of the water supply has declined, and the cleaning work will continue until the beginning of the spring irrigation in March 16th, with a total of 100 thousand cubic meters of silt up, and the daily progress is about 4000 cubic meters, and it has been completed half. Yan Yunkun said. The dredging work in Tianshan irrigation area is a requirement for water ecological construction in Ji'nan. It not only relieves the pressure of sediment settling, but also improves the water quality.
in addition to the silting project being carried out in Tianshan irrigation area, the other two other important water sources magpie mountain reservoir and Yuqing lake water storehouse have also been dredged since the end of last year's flood season. Liu Guoqi, the head of the Engineering Department of the magpie reservoir management department, told reporters: "the magpie mountain reservoir has spent more than 10 years of sediment pool, and this silting up silting up 130 thousand cubic meters." It is reported that the Yuqing lake reservoir has also transformed the Yellow channel head of the North shop, and the ability of the sand settling basin to adjust the sand has increased significantly.