AVIATION

Prospects Of China’s Water Treatment Industry

  1, water treatment industry, introduced the

      Water treatment in order to make the water meet specific environmental and recycling purposes, by physical, chemical and biological means, water quality control, remove or add water, simply put, water is meant to make the water meet specific environmental and recycling of use, through physical, chemical and biological means, water quality control, remove or add some water for the production, life and environment do not need or require material as a whole. The scope of water treatment into the production and supply of tap water, sewage treatment and recycling and other water treatment, use and distribution of three categories.

      From the water treatment industry, the actual operation point of view, we can be divided into circulating water system management, integrated water resources management and water supply and other special treatment in three categories. Circulating water system management sector include central air-conditioning cooling circulating water treatment, refrigeration cycle of water treatment, heating water, central heating circulating water treatment, industrial cooling, chilled water circulating few segments of equipment production and sales. Integrated water resources management sector mainly include wastewater treatment, landscape and environmental water treatment, rainwater use, urban sewage and waste utilization, general production of sewage and waste utilization of several market segments. Water supply and other mainly by the water supply and other water treatment industries pose.

  In 2008 the market scale of China’s water industry to reach 1,000 billion yuan, of which circulating water system management industry was 77.0 billion yuan, integrated water resources management industry as 45.34 billion yuan, and the rest totaled 46.96 billion yuan. This shows that China’s water market is huge, composition is a water circulation system of governance and integrated water resources management industry and water supply and half of each other.

      Note: Due to the breakdown of water supply and other technical requirements for water treatment industry, a low, all kinds of technology is more mature, below the water treatment industry, the main object of study for the circulating water system of governance and integrated water resources management industry.

      Second, the status quo of China’s water treatment industry, technology development

      Water treatment industry is a multi-disciplinary, knowledge-intensive high-tech industries, involving biological, chemical, machinery, electronics and other fields is the country’s environmental protection industry development level an important symbol. Since the 20th century, 90 years in the country to vigorously promote sustainable development, the establishment of environment-friendly conservation community, background, domestic water treatment business through the introduction of foreign advanced technology and constant innovation in technology has made considerable progress in have been gradually reduced with the advanced water treatment technology gap.

      1, circulating water system Development of Treatment Technology

      Circulating water treatment technology in the final analysis is to answer the questions under the premise of controlling water quality indicators, how to protect the system is stable and reliable operation and reduce processing costs; how to effectively improve the concentration ratio, saving water resources and secondary pollution and so on. At present, the circulating water system of governance as the main technology is the physical methods and chemical methods.

      1.1 Physical Water Treatment Technology Development

      Physical water treatment technology, the development process has gone through the magnetic treatment, high-voltage electrostatic processing, high-frequency radio-frequency electromagnetic treatment and the four stages of processing. Currently based on magnetic processing and high-voltage electrostatic technology products dealing with restrictions on the use of the conditions have gradually lost their competitive edge, high-frequency electromagnetic radio frequency treatment and processing technology to become mainstream technology.

      1.2 Chemical Water Treatment Technology

      Circulating water through the cycle of chemical water treatment technology dosing water stabilizer in the form of chemical products to solve the system scaling, corrosion and bacteria breeding algae problem. Due to easily lead to secondary pollution and control system to address such issues as the earlier restricted the chemical method to promote the use of water treatment technology.

      1.3 circulating water system treatment technology trends

      At present, the physical water treatment technology has been developed to a higher level of RF-type physical field water treatment technology, the technology at home and abroad a centralized air-conditioning and heating system of circulating water treatment areas to be widely used. In practical engineering applications, RF-style physical fields water treatment technology has been successfully applied to the Guangzhou University City district cooling and district heating projects, the majority of the Beijing Olympic Games venues, the National Grand Theater, as well as basic transportation infrastructure such as Beijing rail transportation, rail transportation in Tianjin , Nanjing rail transport projects.

     Chemical cycle of water treatment technology, along with the large-scale fertilizer petroleum, chemical, metallurgical equipment to introduce and develop. Application of chemical treatment longer, technology is more mature. However, chemical treatment equipment, mainly through the regular or periodic dosing dosing the water to control the water quality in quantitative pharmaceutical scaling, corrosion and bacteria breeding ground for algae and other issues, because of its high operating cost (subject to the system of continuity dosing chemical treatment agents ), likely to cause secondary pollution of water, resulting in circulating water unstable and subject to certain restrictions on scope of application.

      At present, surface water, groundwater and wastewater reuse and other dynamic replenishment water gradually applied to circulating water systems, dynamic and static quality of the replenishment cycle of water gave rise to conflicts between the requirements, therefore, in the physical law static treatment of recycled water on the basis of the main technical indicators, supplemented by dynamic chemical treatment solution replenishment dynamic changes of physico-chemical water treatment technology has solved the water quality fluctuations due to recharge of recycled water quality problems of instability, is the circulating water system technology, the future of the area of governance trends.

      2, integrated water resources management technology development

      The field of integrated water resources management has not yet formed a full-featured production process, a variety of technical methods are scattered sewage, landscape water, rainwater and other related water treatment.

      2.1 Wastewater Treatment Technology

      China’s current wastewater treatment technologies include the application of more oxidation ditch process, SBR method, CASS process, contact oxidation method, Biological Aerated Filter Technology (BAF), MBR method and speed sub-biological treatment technologies. These methods have advantages and disadvantages, select the main method described as follows:

      A, CASS process

      CASS (Cyclic Activated Sludge System) technology is internationally recognized in recent years, treatment of domestic sewage and wastewater is one of the advanced technology. The basic structure is: In the Sequencing Batch Reactor (SBR), based on the reactor pool length along the direction of the design into two parts, the front area of biological selection, also known as pre-reaction zone, the rear main reaction zone, its main reaction zone can be installed in the rear of the automatic charge-off of water lifting devices. The entire process of aeration, sedimentation, drainage and other processes within the cycle in the same pond to run, eliminating the conventional activated sludge secondary sedimentation tank and sludge return system; the same time, continuous water, intermittent drainage.

      B, MBR Process

      Membrane bioreactor (MBR) is a membrane separation unit and the bio-processing unit with a new water treatment technology, to get the rapid development in recent decades. The process replaces the application of hollow fiber membrane activated sludge in secondary sedimentation tank to carry out solid-liquid separation, effective separation of the mud to reach the objective. The role of high-performance membrane retention can be effectively retain nitrifying bacteria, so that it completely trapped in the bio-reactor, so that nitrification can be carried out smoothly, effectively remove ammonia nitrogen, to avoid the loss of sludge at the same time can be difficult to retain temporary degradation of macromolecular organic matter to extend their residence time in the reactor, so that to maximize the decomposition.

      However, there are still MBR process is as follows shortcomings: high cost film, membrane modules and short service life, 2 to 3 years that is required to be replaced; easily lead to membrane fouling; high energy consumption, in order to increase the membrane flux, to reduce membrane fouling, we must increase the velocity, scouring membrane surface, resulting in MBR power consumption than conventional biological treatment processes high. .

      C,-speed sub-biological treatment

      Speed sub-biological treatment technology is a new sewage treatment technology. The principle of this technique is the use of fluid dynamics in the “exile,” the principle of breaking the traditional biological treatment methods, so that the processing system into a single ever-changing biological environment biological environment in which the water body in a collection of repeated occurrence of anaerobic, oxygen reaction, and the process without sedimentation tanks, backwash and sludge treatment systems. Speed sub-biological treatment technology is the core of “sub-biochemical-speed ball”, as a biological carrier, filling the speed in the specially designed sub-biochemical pool, attached to the biofilm on which is the main role of the biological material handling systems. Sub-biochemical ball speed can be 30 years of normal use without having to replace, than the traditional bio-filler saving a lot of replacement and maintenance costs.

      2.2 Landscape Water Treatment Technology

      At present, the physical landscape of water treatment technology is relatively simple consisting mainly of the processing technology, point-source processing in order to change the water-based cutting pollution, point source to handle air flotation filtration mainly endogenous to handle oxygen dredging for Lord. For the landscape and environmental management of water bodies commonly used methods are: 1) to filtering and oxygenation as the main characteristics of the physical methods; 2) to put in drug control as the main characteristics of micro-chemical methods; 3) to increase the contact area with air the main features of the biological treatment method, and 4) to on a regular basis the role of microorganisms inoculated with water as the main features of the ecological approach.

      2.3 Rainwater Treatment Technology

      Rainwater rainwater that belong to micro-polluted water. Collection of links dealing with relatively simple technology, mainly to resolve the storage and water to maintain the problem, the part of the governance landscape water treatment technology and there is no essential difference.

      2.4 Technology Development Trend of Integrated Water Resources Management

      At present, a single processing technology can not meet the requirements of the field of integrated water resources management in order to bioremediation purification compound represented by a variety of techniques is an inevitable trend of development. Its core is the use of high-performance composite microbial or hydroponic cultivation of plants, the metabolic activity of aquatic animals and plants on the water environment in the ammonia nitrogen, nitrite, organic matter and other harmful substances, transfer, conversion and degradation, reducing COD concentration of pollutants in water value; the same time, photosynthetic bacteria can use light and type a simple inorganic substances in water for photosynthesis, fixed nitrogen and phosphorus in water and other elements at the same time, producing oxygen, increase the oxygen content of water, so that aerobic micro-organisms through its own role in the metabolism of organic pollutants in water and broken down into simple inorganic compounds to further absorb and use of the water ammonia nitrogen, total phosphorus and other nutrients and other soluble pollutants, reduce the degree of eutrophication, allowing water to be purified and restored, to reach a new the ecological balance. From a technical nature, such purification technology of bioremediation is a natural resilience and self-purification capacity of an enhanced.

      Third, China’s rapidly growing water treatment industry, market size

      1, the industry development of the overall market size

      2005 China circulating water system of governance and integrated water resources management industry, the market scale of 31.52 billion yuan in 2008 to reach 53.04 billion yuan, an increase of the speed continued to increase, now nearly 20%.

  The rapid growth of market size is a double-pull the inevitable result of demand factors: First, under the control of a rigid national policy needs, which is mainly manifested in the country promote the cause of water pollution control and promote the implementation of energy-saving emission reduction, emphasis on water recycling, to solve water shortage regional water policy issues arising needs; second is economic development and improved living standards resulting from internal demand, mainly in urban upgrading and real estate development in the upscale community building, people’s demands for improvement in their living environment led to the park green building aspects of the water caused by the demand. The first category is mainly to promote the demand for recycled water market, small and medium-scale industrial wastewater treatment market development, the second is the promotion of rainwater, landscape water treatment and wastewater treatment market.

      In November 2008 after the hit by the economic crisis, marked slowdown in China’s economic development, water downstream demand growth slowed. In response to the economic crisis, China began implementing the 4 trillion of investment plans to stimulate the economy in 2008, the central arranged 11 billion for environmental infrastructure, including pipeline construction, sewage treatment plants, waste treatment plant construction. In 2009, the Central is expected to arrange more than 200 billion yuan in environmental protection. Early in 2009 issued a “Circular Economy Promotion Law of The People’s Republic of China” to encourage re-use of resources. This series of measures to help prevent China’s economic development has been little impact on the economic crisis factors, GDP growth is expected to continue to be maintained at 7% above the pace of urbanization will continue to accelerate. Statistics show that in 2009 the Ministry of Construction, the National cities officially designated as 660, 338.05 million were urban, urban area of 399,000 square kilometers. According to the present 42% of urban sewage treatment capacity is no percentage calculations, there are 277 cities in China involving 140 million total population of 168,000 square kilometers need to build various types of wastewater treatment and water recycling facilities, this part of the market conservatively estimated at about 38.4 billion. In accordance with the release of the proportion of 20% per year of recycled water governance and integrated water resources management system, the new demand of the market size of up to 7.7 billion; the original cities and other geographical conservative estimate of the scale of new demand of up to one billion yuan. Can be expected to see in the next annual cycle of water governance and integrated water resources management system, new demands in the size of the market capacity of 87 billion yuan, 53.04 billion yuan with the 2008 compared to the scale growth rate reached 16.4%. This as the growth rate as a predictor of the baseline (below the level of the current growth rate) on the size of the market the next few years were rough estimate, is expected in 2009 circulating water system of governance and integrated water resources management market size of up to 61.74 billion yuan, to the 2013 there was an increased to RMB 113.34 billion.

  2, circulating water system management industry overview

      Circulating water system management sector include central air-conditioning cooling circulating water treatment, refrigeration cycle of water treatment, heating water, central heating circulating water treatment, industrial cooling, chilled water circulating few segments of equipment production and sales. Such equipment is mainly used in commercial construction, municipal engineering, industrial and mining enterprises, high-end residential and other projects. The last century, 80 years ago, almost no recycled water for processing, mainly to re-replenishment model. Later, the introduction of chemical treatment, but under the high cost of domestic pharmaceutical overseas pharmacy hard to limit compliance, physical law came into being, with the scarcity of water resources continue to appear, circulating water treatment method is also progress. After nearly 10 years of development, China has made recycled water market, rapid development, it is still at a very early stage.

      The past 30 years, the size of China’s economy continued to grow throughout the city to accelerate construction, particularly in urban construction, real estate as a key industry was growing rapidly, which contributed to circulating water system management market demand expansion. Along with the national launch of a number of investment incentives and industrial revitalization planning, industry use recycled water demand significantly. In 2005, China circulating water system of governance industry market scale reached 4.72 billion yuan, by 2008 it reached 7.7 billion yuan, the growth rate reached 17.7%.

  National investment incentive policies and urbanization process has led to circulating water system management market, growth in demand for guaranteed, expected future size of the market growth rate will be maintained at around 20%. In accordance with the overall market growth rate of 16.4% as the baseline forecast is expected in 2009 circulating water system management industry market size of up to 8.96 billion yuan by 2013 to reach 16.45 billion yuan.

  3, integrated water resources management industry overview

      Integrated water resources management sector mainly include wastewater treatment, landscape and environmental water treatment, rainwater use, urban sewage and waste utilization, general production of sewage and waste utilization of several market segments. Is mainly used in living areas, industrial and mining enterprises, scenic areas, large-scale venues such occasions. Abroad, such as France, Britain and other high level of urbanization and the environmental awareness of a strong country attaches great importance to sewage treatment, rainwater utilization, landscape water use management and production of issues such as domestic sewage, governance is as high as 80%. Late the development of this field in China, large-scale wastewater treatment market is almost a monopoly for foreign enterprise products, landscape water, rainwater utilization is just beginning.

      Into 2009, with plans to implement the revitalization of China’s various industries, as well as energy-saving emission reduction work carried out, gradually weakened the impact of the economic crisis. The market demand for comprehensive management of water resources directly related to the size of urban construction, tourism development and investment in areas such as industrial plants has developed steadily. Water treatment under the national policy to promote market demand for increasingly rigid in the “Eleventh Five-Year” end and “Shier Wu,” During the show, while the ever-increasing standard of living of the people even more is the addition of the urban upgrading, landscape water use, demand for such eco-level of water. These are conducive to the comprehensive management of water resources, expanding the size of the market demand.
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