Diatomaceous earth filtration technology innovation caused by thinking – diatomite filter technology – filtration and separation industry
Experts said that diatomite has a large surface area and aluminum, iron, through flocculation, sorption purification of sewage, which is widely used in the beverage industry, such as Coca-Cola Pepsi-Cola, Wahaha and diatomaceous earth used in the beer industry and other special industrial wastewater, such as dyes and oilfield wastewater treatment, sewage plants and urban sewage water treatment plant in the secondary settling tank water depth of processing, these applications have a good description of diatomite filtering.
The recent conclusion of the "2009 Water Industry Advanced Technology Forum", Environmental Science and Engineering, Tsinghua University, Professor Wang Kaijun of new technologies and new processes in an objective, a wonderful speech, in which technology is an important statement of diatomite part, aroused great interest in peers. Diatomite technology as typical water treatment works on the Hai Baan Co., diatomite powder microfiltration membrane technologies What are the advantages? New technology enterprises in the innovation process in which they suffered embarrassment? Answers to these questions may reflect more a part of the technology companies in the innovation process in the different situation encountered.
Diatomaceous earth filter can be used alone or with other combination of biological treatment.
Diatomite powder form or anion exchange resin powder by hydraulic means, to evenly laid Filter Filter element as the filter medium surface to form a 1.5 ~ 3.0mm thick film, resulting in water retention of suspended matter particles and other micro-organisms / bacteria, so that the filtered water to meet drinking water standards, which is the technical forum on the Hai Baan on the introduction of the "powder microfiltration membrane filtration technology."
The Hai Baan Water Treatment Engineering Co., Ltd. Zhang Chunlin, general manager, summed up the technology mentioned several advantages: First, for low temperature, low turbidity water by diatomite powder microfiltration membrane technology, has not take the advantages of adding coagulant, can be considered a separate use of diatomite powder microfiltration membrane device instead of conventional coagulation, sedimentation, filtration technology portfolio. Effluent turbidity of less than 0.1NTU; Secondly, micro-polluted water, improved diatomite and anion resin powder microfiltration membrane technology can effectively remove the organic material, which reduces the water for the chlorination reaction as THMs with good results. Can be widely used in water contaminated waterworks. Water depth in the transformation of treatment, microfiltration and ultrafiltration membrane technology will be competing for market space; Finally, the powder particle size of micro-filtration membrane technology to remove particles larger than 2 m, and the combination of traditional technology and equipment can increase quality of drinking water.
Diatomite Given these advantages, then the process of technology to promote the existence of some "resistance" mean?
Diatomite extended to still exists controversy, Kai-Jun Wang said: "The understanding of new technologies must be realistic, and not to expand the application scope, and publicity methods should be taken to avoid" snake oil "type of boasting, to the user to learn to say "NO"; second, from an academic perspective, the process of developing weakness in the clarifier unit with hydraulic suspension technology parameters properly, biological process (diatomaceous earth) mechanism are not clearly defined. "
"Another problem is the unit to enlarge the problem, especially in urban sewage Amplification of limitations," Kai-Jun Wang added, "From this perspective, urban sewage, the unit mature later, bound to involve a complex operation problems in the application of large-scale amplification of the problem is bound to consider and resolve the problem. "
"Some new technology in the amplification some of the problems which have to face, mind to be calm," Kai-Jun Wang suggested, "the environmental protection industry has entered a mature stage, to use the data speak."
Diatomite sedimentation filtration technology is a new technology in the 2009 Water Industry Advanced Technology Forum careful to set this unit, through the tip of the iceberg may be to other companies are facing this problem or will be entered innovative new technology provide a valuable reference for enterprises to avoid detours, but also more and better new technology, application to open a new page.
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