Dongchu rejuvenation
The water of the magnetic lake is green
recently
Good news from the Municipal Bureau of Ecology and Environment
Water quality of the southern half of Cihu Lake
Noticeable improvement
For the first time, the main indicators were generally better than the overall average of the whole lake
There are 8 main outlets on the south bank of Cihu Lake in the Xisai Mountains. There are many residents along the coast, and the pipe network of houses along the mountain is seriously misconnected and missing, and there is also industrial wastewater mixed in, making it extremely difficult to restore water quality. It has always been a "pain point" and "difficulty" in improving the water quality of Cihu Lake.
How to implement comprehensive lake management in the Xisai Mountains?
Focus on long-term management and improve the "Hong Kong Governor System"
Relying on the "port chief system", adhere to the combination of discharge management and rectification along the line, the combination of scientific monitoring and precise policy, and the combination of daily management and engineering measures, establish and improve the three-level linkage management mechanism of "port chief office + port chief + section chief", adhere to the monthly trace, fortnight consultation, strengthen work scheduling and supervision, and find problems and rectify them in a timely manner. The management responsibility for each river and lake outlet and its line is compacted to the person, and the problems found in the daily management and maintenance of the outlet are coordinated and solved in a timely manner, and the long-term management problems of the river and lake outlets are solved. According to the flow direction of the receiving water body, by strengthening the construction of the urban rain and sewage diversion system, strengthening the management of the rain and sewage pipe network and the port canal, the setting of the port chief system and the long-term management of the lake outlet are closely combined, and a leading group for the long-term management of the lake outlet is established to improve the remediation management system, clarify the objectives, tasks and work content, and ensure that the water quality of the lake outlet is stable and up to standard.
Focus on the effectiveness of governance and implement the "four-character work method".
Start with the word "check" to find out the current situation of the base. Organize law enforcement personnel to conduct a comprehensive investigation of all sewage outlets that discharge wastewater directly into Cihu Lake through pipelines, ditches, canals, culverts, tunnels, etc., in the jurisdiction, so that the "number" is clear and the "check" is clear.
The word "test" comes first, and the data foundation is consolidated. In accordance with the principle of "all should be extracted, all water should be collected", the port canals along the line are continuously sampled and monitored for three days every month to ensure that the monitoring data is true and accurate.
The word "trace" is solved to promote the transformation of achievements. On the basis of comprehensive investigation, sort out the content of traceability work, improve the collection of traceability data, accurately determine the location of the discharge port, and pay attention to the analysis of traceability results. Through data traceability, investigation and traceability, etc., determine the responsible entity of the sewage outlet.
The word "governance" is important, and the policy is scientifically classified. Clarify the remediation objectives, tasks and measures, and take engineering measures to accurately implement the transformation of the flow section where the water quality declines due to the rupture of the sewage pipe network, misconnection and omission, failure to connect, and rain and sewage confluence, so as to ensure the normal operation of the urban rain and sewage pipe network.
Focus on joint efforts to tackle tough problems and strengthen cross-regional coordination and linkage
Adhere to the problem-oriented, through the early stage of the "investigation and measurement" work, for cross-regional problems that affect water quality, in accordance with the principle of overall coordination at the municipal level and sponsorship by the district supervisor, take the initiative to connect with the Municipal Pollution Prevention and Control Headquarters Office, and request coordination and resolution. In order to effectively and quickly solve the problems found in the early stage, the relevant departments of the Municipal Urban Management Committee, Xisaishan District, Huangshi Port District, and Xialu District went to the scene of the problem outlet, carried out a full line of investigation and arrangement of the outlet of the inlet port, comprehensively sorted out the list of problems, and carried out coordinated rectification in accordance with their respective responsibilities, formulated rectification measures and plans, and divided areas to carry out coordinated rectification, so as to accelerate the implementation of problem rectification and further improve water quality.
Focus on scientific policies to implement the comprehensive treatment of "three waters".
The problem is in the water, and the root is on the shore. In recent years, Xisaishan District has adhered to the "three water co-ordination" of water environment, water ecology and water security, and has invested more than 35 million yuan to implement comprehensive treatment of Hujiawan Port, Muyanghu Port and Lijiafang Port.
Hujiawan Port has built 2.5 kilometers of rainwater pipe network and sewage pipe network, and completed the transformation of domestic sewage collection in the surrounding areas along the port. At the same time, the port body was desilted, and the ecological slope protection project was implemented, and bitter grass, foxtail algae, sleeping canopy, etc. were planted at the bottom of the port canal, so as to give full play to the purification function of the port canal embankment ecosystem. Today, it has been built into an ecological, recreational, and vibrant landscape green corridor.
The construction and rehabilitation project of the sewage pipe network of Muyanghu Port is 10.56 kilometers long, and the well has renovated the inlet of the lake, and planted 12,000 bitter grass plants in the No. 8 discharge (Muyanghu Port outlet) for ecological restoration, further strengthening the self-purification function of water quality.
The shoreline of Lijiafang Port along the south side of Lake Road was fully restored, and the initial rainwater at the intersection of Dongdayang Road was collected and connected to the municipal sewage pipe network by intercepting sewage and intercepting troughs, and submerged plants were replanted to restore the self-purification capacity of the water body.
In the next step, Xisaishan District will continue to strengthen the comprehensive management of the river basin, promote the continuous improvement of the ecological environment of Cihu Lake, and make the water of Cihu Lake cleaner and more beautiful.