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Pulse? Circulating fluidized bed technology of sewage treatment - pulse? Circulating fluidized bed, wastewater treatment technology - water industries by big tree
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Pulse? Circulating fluidized bed technology of sewage treatment - pulse? Circulating fluidized bed, wastewater treatment technology - water industries by BIG TREE
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| Article Posted: 06/22/2010 |
| Article Views: 73 |
| Articles Written: 1033 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 722 |
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Pulse? Circulating fluidized bed technology of sewage treatment - pulse? Circulating fluidized bed, wastewater treatment technology - water industries |
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Business,Business News,Business Opportunities
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Abstract: This paper introduces the pulse? Circulating fluidized bed technology and application of the principle, explains the advantages of the new water treatment process.
Keywords: fluidized bed; pulse? Cycle 1 Introduction Fluidized bed is to use the concept of mass or heat transfer operations of a class of reactors. It different from traditional fixed-bed reactor, the bed body is always solid particles suspended in liquid (gas) and strenuous exercise the body, which greatly enhanced the diffusion of material to improve the response speed, can handle per unit volume of liquid reaction volume increased from 2 to 10 times, which makes the fluidization can be widely used in industry.
Biological fluidized bed Sewage Processing technology for wastewater treatment study started in the 70s of the 20th century the United States. Domestic research and application of the bed began in the late 70s. Early research focused on exploring mode of operation, carrier characteristics, oxygenation method, biological Membrane Control and updating, in order to understand the law and to solve practical problems purification, and on this basis recommended design parameters. Into 80,90's, at home and abroad have been built many types of small and medium fluidized bed unit, and in some industrial wastewater and domestic sewage into use. Reported by home and abroad, because the water in the cloth, biological vectors and other aspects, the existing scale of biological fluidized bed treatment devices are mostly in a few hundred tons / day of the following is basically still in the research stage, has not been able to achieve industrialization in large scale, fluidized bed really play in the field of sewage purification great advantage.
In recent years Chemical industry Materials industry has achieved rapid development. Polyurethane material has a light weight, high porosity, good flexibility, corrosion resistance, and many other biological carrier must possess a special performance. And increasing production, prices lower and lower, which is fluidized bed technology Filler The development has provided strong support.
Pulse? Circulating fluidized-bed process generations, Central Department of engineers and technicians use several years of experience and years of research and development and completion of a patented technology. Dual fluidized bed system concentrated pool of biological activated sludge and biofilm dual advantages of the system to achieve highly stable and reliable operation, pollutant removal process several times greater than normal. Complete biological treatment of a major revolution.
2 Principle Pulse application of anaerobic fluidized bed unit is the reaction of the actual acidification reaction principle, the pulsed fluidized bed unit dosage of a certain amount of high biological affinity for packing, use of pulse Pulse Water Distributor role of water distribution , packed in the reactor to achieve "float? settlement" of the fluid state.
Pulsed fluidized bed (acidification) of both biological degradation, but also has the hydrolysis acidification. Ideal biological degradation depends primarily on the biological effects of sludge concentration and distribution of water, acidification tanks must be guaranteed a certain amount of filler content and biological sludge, mud pools at the same time make the full mix and to fill in the high biological affinity fluid state, makes the sludge absorbing pollutants in water, decomposition. If the filler and reach a certain concentration of sludge, mud mixed results are poor, anaerobic part of the treatment effect will be poor. Therefore, the uniformity of water distribution and concentration of anaerobic sludge acidification level will determine the effectiveness of good and bad.
Automatic and efficient pulse water distributor fluidized bed based on the flow pulse and the current state of the various requirements of the characteristics of water distributor out research and development is a more ideal energy efficient, reliable operation of water distribution systems. The water distributor has the following advantages: simple structure, does not require complicated equipment, water distribution throughout the breathing process automatically by water, convenient management and maintenance; low energy consumption, high efficiency, in addition to enhance the inflow of foreign power without the other; water distribution uniformity, water mixing effect is good; long life. I am a professional editor from China Product, and my work is to promote a free online trade platform. http://www.himfr.com/ contain a great deal of information about pto wood chipper , rotomolding welcome to visit!
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