真人做人爱试看一

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          We are in an awkward situation in the process of sludge disposal We should have a good command of present situation

          Author: Taida machine       Release time:2016-08-20
          Reading guidance:In recent years, in the role of Chinas energy-saving emission reduction policies and positive financial, urban sewage treatment has been developing rapidly and water environmental governance has also m
              In recent years, in the role of China's energy-saving emission reduction policies and positive financial, urban sewage treatment has been developing rapidly and water environmental governance has also made remarkable achievements. But at the same time, sludge in sewage treatment produced has not been effective treatment and disposal, on the environment caused great harm, and seriously affect the implementation of strategic policies for energy saving and emission reduction in our country. Therefore, in the "Twelfth Five Year Plan" period, sludge disposal will become an important part of the urban pollution reduction work, it shall take necessary measures, technical measures and engineering measures and these measures to be implemented, in order to meet the requirements of the national energy-saving emission reduction strategy work.
             Until the end of 2011, our country to run the sewage treatment plant has reached more than 3100 seat designed to deal with the sewage capacity reached 139 million m3 / day, have a moisture content of 80% of the sludge more than 2000 tons / day, but only about 10% by composting technology to use land, and another 20% of the sanitary landfill and with small amount of incineration, by using the way of building materials for disposal, the remaining 70% are just random Sinotrans, simple landfill or piling up, on the environment caused serious influence.
             1, sludge treatment and disposal of the construction and operation of capital investment is not enough: (1) although in the "11th Five-Year" period, China's investment in the construction of sewage treatment plants and the progress of very large scale, pollutant emission reduction, especially to make a significant contribution to COD reduction, about 50% of the COD emission reduction task is completed by the sewage treatment plant, but "heavy water light mud" phenomenon is still very serious, sludge treatment and disposal facilities investment ratio is relatively low, only accounted for 20%-45% sewage treatment plant of the total investment in developed countries has accounted for the majority of 50%-70%. sewage treatment plant in the plant only completed sewage treatment facilities, sludge reduction treatment only preliminary, not completely stabilized. (2) of sludge treatment and disposal charges low fees, in the sewage treatment system, sludge treatment and disposal costs are not included in the inside, resulting in sludge treatment The operating cost is a serious problem.
            2. sludge treatment disposal lack of planning: at present, only Beijing, Tianjin, Shenzhen and other cities of sludge disposal has made a preliminary planning to attempt, in large parts of the country of the city, the township has not yet been initiatives in this area, the need to increase efforts in this aspect in the future.
            3. Sludge treatment and disposal standards system construction is lagging behind: the sludge treatment involves the construction, environmental protection, agriculture and other industries, and the relevant departments in the formulation of standards are just from the functions under the jurisdiction of the Department of, resulting in multiple industry convergence there is not complete asked.
            4. Sludge treatment and disposal technology remains to be further studied: at present, the sludge source reduction and pretreatment technology are still in the development stage; sludge digestion technology use is very common, but there are still further optimization of space; sludge composting technology such as long cycle and the smell in addition to; sludge together with the disposal and incineration technology to the secondary pollution of the environment problem also remains to be further solved.
           5. Sludge treatment and disposal regulation is not in place: the sludge in the transport, storage, disposal process there will be a certain degree of risk, such as sludge spill will pollute the environment, the sludge anaerobic treatment may cause a fire,. If the operation and management is not perfect, lack of supervision will be caused serious security risks.
            6. The industrial development policy system has not yet formed: in our country, with the sewage treatment plant construction and deal with the scale of rising, quantity of produced sludge increased substantially, until at the end of the "Eleventh Five Year" period, sludge treatment and disposal industry truly have the attention and concern of the general public. But the sludge treatment and disposal project investment, construction, operation, management, technology, equipment, etc. industrial system has not yet formed, there is no special charge, financial subsidies, special funds to support policy, there is no derivatives of sludge applied to other fields related to supporting policies. Therefore, sludge industrial development policy system needs to be further strengthened.
           

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          真人做人爱试看一

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