What has changed is not only water quality -- A Side note on Jiaowa River regulation in Jiangbei New District

"Before the water smelly ah, give me to pour vegetables I hate, now not only not smelly, beautiful environment, also can rest assured to pour." Uncle Li's private land is the closest to the Jiaowa River, only about 20 meters, and some daily vegetables are planted in the land. From being abandoned to being used for their own use, the Jiaowa River has not only changed the water quality, but also brought a real sense of gain to the surrounding people.

Jiangbei New District water rise Office relevant responsible person introduced, Jiaowa River in the Dachang street peace community, is agricultion-related area. Many residents' private land, is a "food", through the water environment regulation, the former black smelly river, now the water is green, the surrounding residents praise Qi Qi, bring visual enjoyment to everyone at the same time, but also to the residents along the river brought real benefits.

Face the problem, there are many sources of pollution

Jiaowa River is not long. It starts at Yaojiang Line and flows from west to east into Ma Cha River. The current river is 1.26 kilometers long, 3 to 6 meters wide and has a catchment area of 113.7 hectares. However, 300 meters upstream is Zhanzhuang community, an 800 meter tributary is surrounded by Tangguosi Formation and Tangguosi community, with more than 400 permanent residents, 300 meters in the middle is Shangyunchen demolition plot, 600 meters in the downstream is Yaozhuang demolition plot.

"There are many sources of pollution and it is quite difficult to clean up." The relevant person in charge of Jiangbei New District water promotion Office used such words to evaluate the Jiaowa River before the renovation. Because the shanty town within the catchment area is located in the unbuilt area, the sewage network is not perfect, and the domestic sewage goes directly into the river. There are some fields upstream, the field sewage mixed with fertilizer will also seep into the river; Surrounding small workshops, poultry, livestock raising and dry toilet sewage often flow into the river, a variety of reasons for Jiaowa River water turbidness, gray green, but also emit a foul smell.

In April this year, the Standing Committee of the provincial People's Congress also "named" Jiaowa River. Jiaowa river regulation work has been urgent. This is an uphill battle from which there is no turning back. It must be fought and won.

Comprehensive remediation, one move after another

In early May, Jiangbei New District started the river regulation work of Jiaowa River, held several special meetings to study and plan, and formulated relevant regulation measures based on the actual situation:

We will deepen internal governance. To solve the problem of sediment deposition in the river channel, Jiaowa River has been dredged twice, a total of 2,100 square meters of silt has been cleared and more than 3,000 tons of sewage has been treated, effectively improving the self-cleaning capacity of the river channel. At the same time, 180 tons of stones were laid at the bottom of the river to enhance the water filtration capacity.

Carry out environmental cleaning. Residents around the Jiaowa River have little awareness of environmental protection. There are piles of construction waste on both sides of the river, and vegetable fields, dry toilets, sheds and pig pens close to the river bank. To this end, the streets and communities were mobilized more than 90 sets of excavators, more than 300 cars of construction waste removal, removal of all weeds along the river, the eradication of 3 meters of vegetable fields around the river 3600 square meters, the removal of all kinds of dry toilets and shed 37, the newly laid lawn 5000 square meters, the environment on both sides of the river has been greatly improved.

Create a wetland landscape. In the original demolition site, 27,000 square meters of water surface excavation, 34,600 square meters of earth, planting all kinds of seedlings of 1146 strains, 15,000 square meters of turf, 8,800 square meters of lycogarlic opopogon, 4,700 square meters of aquatic plants, further purification of natural water quality.

Diversion of rain and pollution will be implemented. In view of the problem of direct discharge of sewage from residents along the line into the river, the New District has implemented the rain and sewage diversion project in Zhanzhuang and Tangguosi communities, laid 6,600 meters of sewage interception pipe, and incorporated all the domestic sewage from 280 households in four surrounding villages into the sewage collection device, and added 1000T/D integrated point source treatment device to ensure the sewage treatment standards before discharge, so that sewage does not go into the river in clear days.

One trick after another, one punch after another, the river management lets the people have a real sense of gain, happiness, security... Standing on the bank, looking at the clarified river, the surrounding residents are reluctant to go: "The smell is not bad, looking at the scenery is good, after the rectification, living much more comfortable. Hopefully it will last."

Long river control, management and protection should be long-term

After the renovation, the water quality of Jiaowa River and the overall environmental sanitation around it have been greatly improved, initially showing the effect of "clear river and green banks". However, there is still a lot of work to be done in order to achieve long-term reform and long-term clean-up.

According to the relevant person in charge of Jiangbei New District Water Promotion Office, in order to realize long-term management and protection, Jiangbei New District has established and improved a long-term mechanism. Considering that the overall awareness of environmental protection of residents around Jiaowa River is still weak, environmental remediation has been implemented in residential areas, including centralized collection of garbage, construction of public toilets, improvement of sewage treatment facilities, strengthening publicity and education, and reduction of domestic sewage discharge from the source. On the other hand, strictly implement the "river chief system" management, equipped with full-time management personnel, daily inspection of the river, timely treatment of bad behavior affecting the water environment, the river regulation to the end.

"River management is not only the responsibility of the government, we residents also need to take care of the river." Shen Jian, a folk river chief, patrols the river once a day. Sometimes when he sees residents dumping garbage and waste water into the river, he immediately becomes a propagandist to spread knowledge about river improvement and protection. "I have watched the Jowa River clean up day by day in the past few months."

Chen Jianlong, the river chief of the community, will also patrol the river once a day to check the water quality of the river, make project records and report the work according to the principle of assigning staff, assigning posts and assigning responsibilities. In terms of time, he diverts from the civil river chief to maximize the coverage of the inspection.

Municipal water promotion Office relevant person said, through the efforts of all parties in society, Nanjing water environment remediation work has achieved certain results. However, water control is a tough battle and cannot be achieved overnight. Next, each plate should firmly establish the idea of "systematic water control, scientific water control, precise water control and efficient water control", further strengthen the regional water environment regulation, grasp early, grasp fine, grasp often, and constantly promote the river management work to long-term, standardized and institutionalized development, and really fight and win the battle of clear water.

Article source: Nanjing Daily