In order to speed up the pace of water reform in central cities, improve the construction of water supply projects and promote the development of urban water supply, according to the March 2 municipal government? Urban construction, urban investment, water supply? According to the spirit of the special meeting, on March 16, Vice Mayor Wang Jiankang led the municipal housing and construction, water affairs, land, price, planning, environmental protection, urban investment, water affairs and other units to conduct a one-day investigation on urban water reform and construction with the heads of yongji city, Salt Lake District and Airport Management Committee, so as to understand the present situation of urban water supply and understand the water supply reform.

The revolutionary emergency. The relevant information is hereby notified as follows:

First, the status quo of public water supply in central cities

The public water supply system in Yuncheng city center consists of four water sources, six water plants and five independent urban water supply networks. It belongs to the management of water conservancy construction department and belongs to the leadership of two levels and four levels of government. The actual water supply capacity of four water sources is 55,000 m3/ day, the total water production capacity of six water plants is 65,438+100,000 m3/ day, and the total length of urban pipe network is about 160km. To sum up, the water supply capacity of the public water supply system in the central city is 55,000 cubic meters per day. The actual total water supply is 6.5438+0.633 million cubic meters, with an average daily water supply of 44,000 cubic meters and a maximum daily water supply of 54,000 cubic meters. According to the forecast, the daily water demand of central cities in 20 12 years is about 75,000 cubic meters.

The second is the outstanding problem of public water supply in central cities.

(A) the lack of overall planning of public water supply

With the rapid development of central city economy and the change of water supply and demand, water

The sustainable utilization of resources has become a key issue in the development of our city. Therefore, it is of great significance to strengthen the unified management of water resources development, utilization, allocation, conservation and protection and establish an authoritative, efficient and coordinated modern water management system that adapts to the development of market economy. For a long time, because the urban and rural water management in central cities involves water conservancy and urban construction, several water supply enterprises are fragmented and the overall planning is poor. As a result, water, surface water and groundwater in the sky cannot be unified, water quality and quantity management are separated, service standards are not unified, and water resources allocation is not connected with urban and rural water supply, which weakens the comprehensive function of urban water supply and restricts the economic and social development of central cities.

The specific questions are as follows:

1, there is no special plan for urban water supply. Over the years, the preparation of special water supply planning report is backward, which can not guide the unified construction of water supply projects.

2. The water supply source is excessively dependent on external water transfer. Our city is seriously short of water, but the water supply source lacks scientific and reasonable allocation, blindly considers external water transfer and water transfer, and fails to make full use of urban reclaimed water and rainwater resources.

3. Water supply enterprises are scattered, and the construction of water supply pipe network lags behind. Because several enterprises are responsible for the water supply business in the central city, a regional management model has been formed. Coupled with the lack of financial investment, the existing newly built and rebuilt streets can not be synchronized with the water supply network, which not only aggravates the city appearance? Zipper project? The problem is also caused by the disorderly exploitation of self-provided wells. By the end of the year, there were 6 newly-built streets in the urban area with a length of about 18km, but no water supply pipeline was provided, which involved new and expanded roads 12, and the supporting construction of water supply pipe network was not arranged.

(2) The construction of reclaimed water recycling system is lagging behind, and reclaimed water can't give full play to its role.

The construction of reclaimed water reuse pipe network in central cities is not included in the planning and construction of urban infrastructure, and the reclaimed water reuse system is not established in cities, which restricts the reclaimed water reuse and the rainwater utilization system is completely ignored.

(3) Water supply and drainage in the new airport area

1, too many self-prepared wells. The water supply source of the new airport area is deep groundwater, which is directly pumped into the water supply network. It is understood that individual enterprises are still building their own wells and even geothermal wells.

2. Rain and sewage are not separated. The urban drainage pipe network in the new airport area does not separate the rainwater pipe network from the domestic sewage pipe network, resulting in a large amount of rainwater entering the sewage pipe network. This directly leads to the increase of sewage treatment capacity, which not only wastes money, but also wastes water resources.

3. No sewage treatment fee will be levied. Due to reasons such as attracting investment, there is no sewage treatment fee in the Airport New Area.

Third, measures and methods to solve the problem

(A) water reform is imperative.

Implementing water conservancy reform is a systematic project. There are many problems and sticking points in the current urban water supply management system. If we don't change now, we will lose the opportunity if we miss it. Therefore, water reform is imperative. It is reported that Linyi county has taken a step in the integration of urban and rural water supply, citing external funds to engage in water supply projects, integrating the original four water supply units, and establishing a water supply system covering the urban and rural areas of the county by lease. Salt Lake District has taken the lead in realizing the integration of urban and rural water supply in the province, and the investment generally adopts the combination of special funds from water conservancy departments and loans from district governments.

Therefore, the water supply affairs in central cities should be managed as a whole, and the cross-management between industries should be minimized, and the authorization can be unified.

(B) actively advocate water conservation

Saving water is one of the main countermeasures to solve the water crisis. It can not only alleviate the contradiction of water shortage, but also reduce the discharge of sewage and reduce the cost of sewage treatment. Through a series of scientific means, planned water use is implemented to prevent water resources from being wasted.

Specific measures are:

1, reasonable diversion of surface water. On the premise of unified planning and strengthened management, external surface water sources such as Yongji Zhou Pu Water Source, Xiaxian Sijiao Water Source and Zuncun Yellow River Diversion Water Source should be rationally allocated.

2. Restrict the exploitation of groundwater. One of the hazards of over-exploitation of groundwater is to destroy the geological structure and ecological balance of the city. A 40-square-kilometer permanent landing funnel was formed in the urban area, which led to bad consequences such as foundation subsidence, water pollution and wall cracking. Second, the water quality as a drinking water source is very poor. Fluorine and total fluorine in fresh water below urban underground 100 meter

Hardness, sulfate, ammonia nitrogen, nitrite, etc. The average exceeds the national standard by more than 50%. Among them, the average ammonia nitrogen exceeded the standard by 300%, and the highest was 850%. The comprehensive evaluation results of groundwater in the whole province 10 city show that the groundwater quality in Yuncheng city is the worst, which is not suitable for human and livestock to drink. In addition, the destructive exploitation of geothermal resources will increase the pressure of urban sewage discharge and the difficulty of treatment, and increase the cost of treatment. Therefore, in addition to the necessary urban emergency wells and groundwater exploration wells, it is very restrictive to continue to implement the work of shut-in and pressure production in the central city.

It is forbidden to drill self-provided wells.

3. Make full use of reclaimed water and rainwater. At present, all two sewage treatment plants are put into operation. The municipal government should introduce relevant policies, support corresponding facilities and make full use of reclaimed water, especially for enterprises with large water consumption such as salinization and aluminum power plants. This can not only reduce the excessive dependence of central cities on external water sources, reduce external water transfer, and correspondingly reduce the investment in water transfer projects, but also give full play to the role of sewage treatment plants, increase the income of sewage treatment plants, reduce the financial burden, promote their normal operation and promote water conservation.

4, increase the collection of sewage treatment fees. It is necessary to increase the collection of sewage treatment fees for all units that use self-prepared wells, with the focus on units that use dual water sources (both urban public water supply and self-prepared well water sources).

5. Implement ladder water price as soon as possible. It is necessary to open the scale of water price, so that families and units that use less water can enjoy low water prices, and those that use more water must pay high water prices, and use price policies to promote water conservation. We predict that the water consumption of high-water consuming industries will plummet after the economic lever greatly increases the water price, so as to achieve the purpose of energy saving, emission reduction and water saving and avoid the waste of water resources.

(3) Achieve high-quality water supply as soon as possible.

In order to solve the problem of water shortage in central cities, we should open up new sources of water by using reclaimed water and rainwater, speed up the construction of reclaimed water reuse system and realize water supply in different quality as soon as possible. High-quality water (for example, the four corners of Yongji Zhou Pu and Xiaxian) is used as urban drinking water, while low-quality water is used as non-drinking water for landscaping, car washing, toilet flushing, road spraying, landscape water and industrial cooling. Specifically: under the premise of unified planning, accelerate the construction of urban reclaimed water reuse system.

1. The planning department immediately issued relevant plans for reclaimed water reuse, which were considered in a unified way and coordinated as a whole.

2. The municipal government has issued relevant policies on reclaimed water reuse. For the laying of the trunk pipe network of reclaimed water reuse system, the construction department will build it simultaneously in the process of building and rebuilding streets in the city. At the same time, the allocation of reclaimed water reuse pipeline facilities should be one of the mandatory examination and approval items. It is required that newly-built residential areas and centralized public buildings must reuse reclaimed water and be designed, constructed, accepted and used simultaneously with other projects.

3. If possible, the planning department will take the lead in formulating the urban rainwater utilization plan to achieve the purpose of saving water.

(4) Strengthen the management of airport water supply and drainage.

1. Restrict groundwater exploitation and speed up the construction of external water transfer projects.

2, rain and sewage diversion. The rain and sewage diversion of newly built roads will be put in place once, and the original rain and sewage confluence pipeline will be rebuilt within a time limit.

3. Start collecting sewage treatment fees immediately.

(V) Several problems that need to be clarified and solved urgently in the near future.

1, speed up urban water supply planning

Planning departments should arrange special funds to speed up the preparation of special plans for urban water supply, not only considering the current construction status, but also focusing on the long-term. The guiding ideology and principles of urban water supply planning and construction in the near future are: unified planning, overall deployment, division of labor, quality water supply and water conservation.

2. Water source construction

(1) Salt Lake District Government is responsible for the construction of urban and rural water supply projects in Salt Lake District. In the near future, the water source project will focus on ensuring the supply of raw water in the area north of the urban railway. In view of the shortage of water in some parts of last summer, Salt Lake District is required to speed up the construction of the project, strive to complete it by the end of June this year, and connect it with the pipe networks of Beicheng Waterworks, Dongjiaying Waterworks and Shunyuan Waterworks to ensure the supply of raw water within the water supply range of Salt Lake District Water Supply and Drainage Corporation and ensure the use of water in the summer peak period. At the same time, it is necessary to solve the supporting construction of water supply and urban pipe network in the new high-speed railway area.

(2) The Airport Management Committee is responsible for the construction of water supply project in the new airport area. The water source project will focus on ensuring the water supply in the new airport area in the near future and continue to operate according to the original idea.

(3) The water supply project of Salt Lake Ecological Construction Development Zone can be directly implemented by the municipal leading group for water reform and construction. The project focuses on ensuring water supply within Nanshan Development Zone, and the source of funds is planned to be financed by Chengtou Company.

(4) Yongji Zhou Pu Water Company is responsible for the implementation of Yongji Water Expansion Project. Specifically, there are three options for comparison:

① Water source expansion scheme. The original water source construction plan needs to invest 37 million yuan and increase the daily water supply by 40,000 tons. Its funds are solved by enterprise loans or market-oriented financing.

② Temporary emergency plan. Call 3 first? 4 wells, increasing the water supply scale by 6.5438+0.3 million tons, and restoring the water supply scale of Zhou Pu water source from less than 50,000 tons to the original design scale of 60,000 tons.

③ Water source replacement scheme. In other words, the water source of Yongji Zhou Pu was replaced by Zuncun Yellow River Diversion Source. Because the 20,000 tons of water supplied by Zhou Pu water source to Yuncheng is mainly industrial water, we can consider using replacement method to adjust all the 20,000 tons of industrial water to domestic water. Then, coordinated by the municipal government, the industrial water of Yongji will be solved with the source of Yellow River diversion from Zuncun village. If the operation is successful, Zhou Pu water source does not need to be expanded in the near future.

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