Water treatment materials and technology development trends

2011-12-8   View:3621

  China's worsening water situation and water quality standards continue to improve the water treatment technology has set a higher requirement for this demand, Ministry of Science and Technology "863" Project Office on March 8 announced the field of water resources and environmental technology and application of new materials key technology and engineering focus on demonstration projects to apply guidelines. The project will be carried out bio-composite flocculant, a new type of biological vector, the new membrane material with the group, and high-performance absorption materials, and applied technology research and development of water treatment and eventually developed 10 kinds of high-performance water treatment material, the formation of five key technologies of water treatment, the establishment of five demonstration projects to upgrade the technological level of China's water pollution control.
In order to facilitate the assessment and management of the project under the 5 sub-topics, including bio-composite flocculant preparation and application of key technologies and demonstration projects will focus on traditional topics of inorganic and organic flocculants in the treatment of sewage and drinking water problems, through the development of efficient production and bio-composite flocculant compound key, application and industrialization of technologies with independent intellectual property rights to develop a new type of highly efficient bio-composite flocculant preparation technology and its industrialization, the achievement of the project application.
  Preparation of a new type of biological vector and application of key technology issues and engineering model, in view of the traditional biological wastewater treatment processes that exist in low COD removal efficiency, nitrification efficiency poor, focusing on choice of moving bed bio-technology, research vector moving bed biological preparation , the application of key technologies, the formation of large-scale production capacity and completion of sewage treatment demonstration project.
  New membrane materials and membrane group's preparation and application of key technology issues and engineering model, the main focus for sewage treatment and reuse of the membrane bioreactor (MBR) and other fields of micro / ultrafiltration membrane materials and membrane group's demand, R & D PVDF-based materials such as low-cost, high performance, high strength, durability Super / micro-filtration membrane materials and membrane group, and the realization of industrialization and modular preparation for China's water recycling to provide technical support.
High-efficiency adsorbent resin preparation and application of key technology issues and engineering model, the main solution to the low concentration of toxic organic waste water and the environment of fast-track incidents in a high concentration of organic pollutants in the emergency disposal of technical problems, the development of three kinds of toxic organic pollutants can be adsorbed adsorption resin, the establishment of a certain scale of production lines and scale of demonstration projects.
  In addition, the project will be efficient in addition to arsenic and fluoride application material as sub-topics, through the development of highly efficient adsorbents in addition to arsenic and fluoride preparation technology industry to address the presence of arsenic in drinking water in China fluoride pollution.
State "863" Project Preparation of new materials, water treatment and application engineering demonstration project specific assessment requirements: the subject of which the development of bio-composite flocculant new bio-composite flocculant purification the main indicators such as turbidity, COD, total phosphorus, such as efficiency than flocculant to increase the current market more than 20% of operating cost savings of more than 20%; the establishment of kiloton-scale industrialization of bio-composite flocculant production lines, as well as the application of bio-composite flocculants processing over 5000 tons of water the size of a demonstration project .
  Requirements of the new bio-carrier R & D issues for more than three kinds of different specifications for the purpose of sewage treatment in different biological suspension of the new carrier and technology industries; built an annual production capacity of 2000 cubic meters of new production lines of biological vector, as well as suspension 2000 cubic meters / day of sewage to deal with the application of a demonstration project.
   New type of membrane material subject specification calls for the development of three kinds of low-cost, high performance, such as new type of PVDF micro / ultrafiltration material; development for membrane bioreactor process, such as high-efficiency membrane group, and lower cost than foreign products more than 20%; the formation of 500,000 square meters / year of new microfiltration / ultrafiltration membrane material production capacity. Topics to be efficient adsorbents developed for the water for more than three kinds of hydrophilic, hydrophobic adsorption of toxic organic pollution in resin and its preparation method, the establishment of a certain scale of production lines and scale of demonstration projects.
   Efficient arsenic fluoride material issues in addition to requirements for more than three kinds of R & D cost-effective new materials in addition to arsenic fluoride, arsenic fluoride in addition to the performance of its current market than arsenic fluoride materials in addition to 30%, 30% more than low prices; the construction of two new fluoride in addition to arsenic Removal of arsenic or fluoride at the same time the demonstration project, demonstration project of the scale of not less than 500 cubic meters / day, integrated operating costs not more than 0.6 yuan / tons of water.

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