The city's first "ecological purification" safety buffer passed the acceptance

On September 16th, Xuzhou's first composite tailwater artificial wetland purification project -the "ecological purification" safety buffer construction demonstration project in Longhu Wetland, Longgu Town, Pei County passed the acceptance project. The project can treat 10,000 tons of tail water every day, known as the "kidney" of Longgu.

In the coal mining area

Build a "kidney"

Where does the tail water from "kidney" come from? From the north of Zhaoyang Avenue, 7 kilometers north of "kidney", Yixi Shimizu is continuously flowing into the three -phase landscape park covering an area of ​​600 acres from the sources of the sewage treatment plant in Longgu Town.

This is a landscape park built on the barren grass lake in the coal mining area -the fish in the water in the water, the grass and wood on the shore, and the bend of the foot of the foot ... not only a beautiful landscape, but also a tail water purification line.

"This is the tail water. Although it looks very clear, the concentration of nitrogen and phosphorus is high, and the straight row rivers will cause the water to be rich in nutrition!" Under the sparkling, the "water factory" is continuing to process physical processing, which can be described as "the static water flows deeply."

"The water here is nearly 3 meters. It is covered with unparalleled pipestone, like a fine capillaries. The tail water purifies the aquatic plant, and the" flowing water is not rot "." Wang Tongliang said.

The trickle water all the way south, after 7 kilometers of diversion pipes, came to the "kidney" mentioned before. Looking down from a high place, this "kidney" is like a huge "banana leaf" falling on the east of the Dasha River. ", Flow into 15 units on both sides for further purification.

"These 15 units use large rocks 'bottom', covering gravel, sand, and soil from bottom to top, planting aquatic beauty banana, re -flower, yellow flower iris, and nagota. In the sand and gravel, absorb substances such as ammonia and phosphorus in the water, and gravel is responsible for filtering and adsorbing harmful substances in the tail water. "

After the tail water is filtered by wetland sand and gravel, the deep purification of microorganisms and aquatic plants, the water collection canal around the "Banana Leaf" is converged, and then the surface flow wetland of 120,000 square meters will be further accepted by the ecological purification. Longhu wetland and river water network supplement high -quality clean water.

4487 acres of Longhu Wetland

Become "Zhenxinhu"

The 4487 acres of Longhu Wetland that completed the ecological restoration has become the "town heart lake" of Longgu Town, and it is also the core point connecting the new and old town. Between the vast smoke, a group of wild ducks gathered and played. They are the best "spokesperson" for the results of the ecological restoration of Longgu Town.

"Make full use of natural degradation and recovery capabilities to achieve further degradation of the tail water of the sewage plant. While improving the overall quality of the water environment and the formation of a healthy water ecosystem, it also plays a buffering and protective role in the provincial ecological red line area." Hao Dawei, chairman of the Town People's Congress.

With the sewage treatment plant, why does it cost more than 200 million yuan to build a tail water artificial wetland tail water purification project? "The Dasha River passes through Longgu Town and flows into the South Four Lakes, and the Southern Four Lakes are not only the water source of 1.3 million people in Peixian, but also the place where the southwater is transferred." The model of the tailwater direct discharge, the construction of the ecological repair series of the unified water environment and the human environment is the additional questions, required questions, and answer questions to improve the overall water quality of Longgu Town and protect the water source.

Text | Zhu Rui

Picture | Bai Xue

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