China's release 丨 Behind Erhai Sea Governance: Not only pollution control technology, but also the concept of environmental protection

China Net August 9th (Reporter Peng Yao) From the perspective of Li Zhixian, an administrator of Dali Town, the water quality of Erhai now has improved significantly compared with previous years. Fifteen years ago, Li Zhixian was often able to salvage the white garbage from the water. With the advancement of pollution and environmental propaganda in Erhai Lake, the white garbage disappeared. Now she needs to salvage. Water plants. "The tourists who have been here have come to avoid the summer, and they all say that they have changed a lot. I am a native resident here.

The Erhai Lake is the "mother lake" of the people of Dali and is also a protective place for Dali drinking water sources. It has encountered a crisis of pollution during the rapid development of socioeconomic and economy. In recent years, Dali has implemented a series of measures such as ecological relocation, pollution interception, and ecological restoration. As of the end of 2021, a total of 23 water quality of the lake rivers reached the Ⅱ water standards, and the concept of protecting Erhai Lake was deeply rooted in the local area.

Dali Erhai Lake protects the ecological relocation "1806" construction project silver bridge plot. China Net reporter Peng Yao Photo

Residents support ecological relocation projects

In 2018, Erhai Huan Lake delineated ecological environmental protection red, green, and blue "three lines". 1806 residents within the core area of ​​the Erhai Water Ecological Reserve need to retreat in an orderly manner. In order to better resettle the ecological relocation households, Dali City planned the implementation of Erhai Lake to protect the ecological relocation "1806" town construction project. According to different plots, we build five distinctive Bai Town. Among them, Yinqiao Town plot plans to place 138 households. At present, more than 120 households have been connected and 33 households have moved in.

Li Siyuan, deputy mayor of Yinqiao Town, told reporters that the resettlement houses of Yinqiao Town land designed three types of units, with the construction area of ​​about 450 square meters. "The resettlement house plus the house evaluation compensation, each household can get 400-5 million yuan per household. Before delivery, there will be a transition period for transitional subsidy until September 2021."

Most of the residents who retreated were originally fishing for fishing, and a small number of homestays were operated. Although the compensation of ecological relocation is considerable, it is not easy for the latter to demolish the "sea view house". Yang Kwai, a resident of Yinqiao Town, was a villager in Xixi Village. He operated two homestays at Erhai Lake, one of which was within the scope of retreat. "The dismantling homestay could have an annual income of 2 million yuan." Yang Kwai confessed that he was really reluctant to relocate at first, but after the staff's communication and persuasion, he still chose to support this project. "In order to protect Erhai Lake, he This is something that must be done. "

Li Siyuan said that considering that residents have made important contributions to the protection of Erhai Lake, ecological relocation households are uniformly resettled by state -owned land, and houses can be used for transactions. At the same time, through the overall planning, the environment of the town has its own characteristics. Residents can also use houses for rental operations. Property assisted the community at a relatively low price. In order to solve the employment problem after relocation, the relevant departments also carried out employment training such as catering, live broadcast, and service operations for residents, and planned to recommend employment to the factory parks and useful workers' needs for residents who did not settle.

The beach administrator clean up the lake. China Net reporter Peng Yao Photo

Standardize home sewage discharge

The improvement of the concept of environmental protection of residents is not only the prerequisite for ecological relocation, but also the guarantee of Erhai Lake's pollution and pollution. "In the past, the people by the lake were not strong in environmental protection, and often throwing domestic garbage into the water. Once I stopped the residents who threw the garbage," Don't throw it away, did you see me cleaning up here? I throw it to the place where the water is a little bit? '"According to Li Zhixian, in order to discourage the behavior of throwing garbage, she and her colleagues turned out the bills, fines and other bills in the garbage. Persuaded residents to love Erhai Lake. "Over the years, the people have gradually realized the importance of environmental protection. Every family threw the trash can and did not throw it into the water at all."

"The habit of digging the septic tank near Erhai Lake when building a house was built, but it was not standardized. The flowing sewage, kitchen sewage, washing sewage and bathroom sewage into the lake would pollute the water quality." From the beginning of the year, the above -mentioned "four water" was collected by the Erhai Lake area. The sewage must be entered into the septic tank first. During the investigation, if the construction is not standardized, but rectification does not involve the competent network, the villagers are repaired by themselves. If the pipeline is complicated, they can also apply for corresponding funds.

"The generations of each household have lived in 'sea', and they are very concerned about Erhai Lake, and now everyone's quality has also improved, so it cooperates with our work." Li Hongfang said.

Dazhuang sewage treatment plant. China Net reporter Peng Yao Photo

Turning off the stains around the lake to treat the stains and build a barrier

After the sewage flowed into the pipeline, it entered the "business scope" of Li Jianjun, deputy general manager of Dali Erhai Ecological Environmental Governance Co., Ltd. According to Li Jianjun, the pollution sources of rivers and lakes are mainly contaminated (home sewage), facial source pollution (agricultural sewage), and endogenous pollution (water stasis pollution). Dali treats the pollution and pollution control system in the Erhai Lake Basin in response to point source pollution treatment. Home sewage flows through septic tanks, village sewage pipes, and competent pipeline networks entering the sewage treatment plant. Purification can be used for farmland irrigation, and the remaining part is discharged into the Xili River along the tail water transport pipeline.

Since 2015, the accumulated investment in the sewage treatment system of Erhai Lake Basin has reached 5.77 billion yuan, 12 sewage treatment plants, 3,400 kilometers of pipeline networks, 30 villages and sewage treatment facilities, 100,000 farmers' septic tanks, and the city's sewage daily treatment of sewage daily treatment The ability is 211,500 cubic meters. Among them, through the new 231 kilometers of sewage pipes (canal), the village and town sewage is fully collected and covered. Erhai Huanhu Huanhu Drinking Project has built six sink -type regenerative water plants in Erhai Lake. "The middle layer of the sinking recycled water plant is the operating layer, and the personnel carry out daily inspection and patrol supervision; the lower layer is a biochemical pool for sewage treatment; the above -ground part is developed, including the construction of landscape parks and exhibition halls." There is no residential area within 200 meters around the sewage treatment plant. The sinking recycled water plant is friendly to the environment. The pollution is 20 million tons to achieve efficient use of water resources.

Thanks to the construction of the pollution and pollution control system in the Erhai Lake Basin, Erhai Water Quality has achieved 7 months II Water 5 months III Water from the previous 7 -month -old type III Water 5 months II. The water quality has improved year by year, and the sea cauliflower known as the "water vane" is re -opened in Erhai Lake.

The reporter learned that, in addition to the interception of pollution and ecological relocation of the lake, the protection and control of Erhai Lake also includes many measures such as mining, agricultural facial source pollution treatment, river governance, ecological restoration of the lake, improvement of water quality, and excessive development and construction governance. Do not let a drop of sewage flow into Erhai Lake. "

What is the effectiveness of the protection of Erhai Lake? In fact, there is no need to repeat it. As long as you walk into the Erhai Ecological Corridor, tourists can see the answer by themselves. Behind this Hongshui is the insistence of the Dali people for the green mountains and green mountains.

- END -