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The prenatal history of sewage disposal equipment in China is still short of 20 years. In the early 1980s, Tianjin Jizhuangzi Daily Sewage Disposal Equipment Factory, the first large domestic daily sewage disposal equipment plant, was initially established. Its disposal plan is 260,000 m3/day, and more than 300 sets of equipment needed are all planned to be manufactured in China. Its successful operation has pushed China's daily sewage disposal equipment to a planned and industrialized road, which has inspired China's real urban sewage disposal industry, and laid the initial foundation for the planned manufacture of China's special sewage disposal equipment.

Since 1988, developed countries in Europe have loaned for the construction of municipal daily sewage disposal plant of deionized water treatment equipment in China. Most of these loans can only be used to purchase the technology and equipment of the borrowing country. It should be admitted that foreign government loans with preferential conditions have injected vitality into China's municipal sewage disposal industry and promoted the establishment of a large number of modern sewage disposal plants. However, the doubts are also outstanding: as about 90% of new sewage plants choose imported equipment, domestic equipment manufacturing industry has been seriously restrained, technology investment is seriously lacking, and companies with real "national team" strength rarely enter this field. On the whole, the technical quality and the planned manufacturing level of the manufacturers of daily sewage disposal equipment and equipment, especially special equipment, are still lagging behind other work, which is quite different from the contemporary international level.

In order to alleviate the increasing financial pressure, advance some government power and improve the quality of public services, the developed countries have initially and extensively used shopping malls in the construction and operation of environmental protection facilities, including municipal sewage disposal equipment. The typical feature is that private capital comes into being in the form of PPP. In the process of commercialization of operation and operation. PPP, short for Public-Private Partnership in English, is an innovative and flexible way in the creation and operation of public infrastructure equipment. It is a partnership between the public and private sectors to replace the traditional government and some to create operation modes to promote the establishment of municipal sewage disposal, including municipal sewage disposal facilities. The further development of urban environmental infrastructure equipment including equipment.

At present, China's sewage disposal equipment work is a thousand miles a day, the overall development is in a rapid growth period, the first manifestation is that the ability of sewage disposal is expanding sensitively, the rate of sewage disposal is steadily advancing, and the amount of sewage disposal is rapidly increasing. In 2010, the daily disposal capacity of municipal wastewater treatment plants reached 102.62 million cubic meters, 13.4% more than the end of 2009, and the disposal rate of municipal wastewater reached 76.9%. By the end of September 2011, 3 077 municipal wastewater treatment plants had been built in cities and counties nationwide, with disposal capacity reaching 136 million cubic meters per day.

The establishment of municipal wastewater and garbage disposal equipment promotes the development of environmental protection industry. By 2020, the rate of municipal wastewater disposal will not be less than 90%. There is a vast space for the business market of China's wastewater disposal equipment. In addition, the national policy of encouraging the use of reclaimed water will also provide vast commercial space for the deep disposal of sewage. The serious situation created by sewage disposal in China and the low rate of sewage disposal in counties and towns have brought infinite investment space for the establishment and operation of sewage disposal malls.

China has also promulgated a series of laws, regulations and policies related to the creation and operation of urban environmental infrastructure equipment. Legislative energy, policy intention and provisions themselves reflect the country's decision to encourage the operation of shopping malls. These rules, regulations and policies constitute a solid foundation for the operation of shopping malls at that time. Local governments According to the layout of the national macro-policy, some relevant administrative management has issued some implementing rules and teaching opinions to support and promote the marketization of urban sewage disposal.

External funds such as international financial institutions, foreign governments, international non-governmental organizations and domestic non-governmental organizations have also entered urban sewage disposal, and a multi-channel, multi-level and diversified financial system has gradually formed. The sewage disposal fee charging system has been gradually improved. At present, all provinces and municipalities have levied sewage disposal fees. Although the standard is low, the system has been established. As China's economy continues to increase, it is imperative to develop and utilize its capital, which will bring about new pressure on the environment and bring about many new environmental problems. However, it is necessary to coordinate the contacts between the environment, capital and personnel, and to support the social supply of more useful high-tech and capital investment, which will pollute the city. The harmless and cost-effective disposal of water puts forward new requirements, which objectively broadens the new space for the commercialization of sewage disposal.

Author: Hangzhou Water Shield Technology Co., Ltd.

Website: http://www.zjhzsd.com/

Key words: deionized water treatment equipment, coating water treatment equipment