See Dongshan Street how to control the Whip Saddle River black odor

With the roar of machinery, the water is drained from the Hanoi, and the silt is pumped out of the channel and sealed in tanker cars... The city's 109 regulation of black and smelly river, Jiangning District Dongshan Street Whianhe River will be completed in this month 20 silt removal project. In addition to dredging, how to deal with black and smelly river system? How can comprehensive measures be taken to ensure better water quality? 7, the reporter visited the whip saddle River remediation site.

Whip Saddle River is located in Dongshan Street fork road community Jinsheng Road, about 1.2 kilometers long. In the afternoon, equipment was set up on the stone bridge, and construction workers connected hundreds of meters of suction pipe to the river below the bridge to prepare for the night. Reporters noted that only a small amount of water in the river, silt removal completed part of the bottom of the river has exposed yellow bottom mud.

Xiang Biliang, the head of Dongshan Street water Station, introduced that on January 10, the staff officially entered the operation and began to drain the silt. From the extracted silt, the average depth of the silt deposited in the river was about 1 meter, and the deepest was about 2 meters. "On February 20, the dredging work of the river will basically end and the rectification work will shift to the shore." 'he said.

The appearance of black and smelly river is in the river, but the root is on the shore. The Bianan River is located in the branch road area, and about 50,000 residents gather around it. Most of the domestic sewage is discharged directly into the Bianan River and other surrounding rivers. Root cure black odor, fouling is the key. To this end, Dongshan Street in the completion of Mingjiajiayuan, Tianshui Yaju and other 6 residential rain and pollution diversion projects.

This year, rain and pollution diversion projects will be launched in 15 residential areas, including Tiandi New City and Nanfang Garden. The project plans to invest more than 100 million yuan, now part of the residential area has been entered, will be in full swing in March, is expected to be completed by the end of June. After the completion of the project, the domestic sewage in the Chalu area will be incorporated into the urban sewage collection and treatment system, and will no longer be discharged into the river.

After the end of the pollution link, black smelly river regulation is completed the "first half". Whether the river can restore clear, water quality can be improved, it depends on the "second half" of the diversion, monitoring links.

"In the first half of this year, we focused on improving drainage outlets and dredging rivers, and completed the treatment of river sources. In the second half of this year, we will carry out onshore work such as water drainage and regulation of drainage behavior." Dongshan Street officials said that the street will be implemented according to the current status of the river diversion and ecological governance, using ecological floating island, aeration device to increase the oxygen content of the river, and gradually restore the self-purification capacity of the river. In order to achieve long-term management, the street will also carry out continuous online monitoring at some river outlet to promote long-term management of the river.

Reporters learned that Jiangning District this year a total of 68 black and smelly rivers, 17 located in Dongshan Street, including whianshan River, red light River, central river, turn over river 10 black and smelly rivers by Dongshan Street (R & D Park) responsible for the renovation, all the project is expected to be completed in July this year, it is a tight time, the task is heavy. In order to cure the black and smelly river, Dongshan Street will invest about 600 million yuan this year, comprehensive policy, systematic regulation of 10 rivers, promote the construction of drainage standard area, and promote the river on both sides of the landscape lighting project, to ensure that the river regulation eventually achieve clear water, bank green, beautiful scenery, smooth road, people satisfied with the regulation goal.

Source: A1 of Nanjing Daily, February 10, 2017