Friday, August 29, 2008

Activated carbon carving can only display, environmental effects of poor!

Under the name of environmental protection has become decorations of activated carbon, profiteering by various names listed! Spent over 10,000 yuan bought a beautifully carved activated carbon, "On the one hand, is able to clean up the air of environmentally friendly products, on the other hand is also decorations." It is this consumer sentiment led to speculative opportunities.

Thai activated carbon is a substance called activated carbon as raw materials, principle similar to gas mask, with strong use of activated carbon adsorption of the physical nature of the activated carbon air filter, toxic gases were elements of the activated carbon adsorption.

Environmental systems specialists said in an interview with this reporter, activated carbon is in a more environmentally friendly products in the application of toxic gas used in the filter, such as gas masks is dependent on the principle of the activated carbon adsorption function, in other areas also, such as pure Such as water purification.

But he said that although the activated carbon in the environmental protection industry in a wide range of applications, but this relatively new carbon Thai products is the first time heard. It is understood that the activated carbon used in environmentally friendly products in powder form for the majority, if activated carbon without a massive loss of the effectiveness of activated carbon is a very difficult technology.

Expert analysis:

  1. activated carbon Thai low surface area not suitable for addition to formaldehyde Decoration pollution control activated carbon to the high surface area 1500-2000 sq ft / g, and activated carbon Thai :700-800 sq ft / gram. Aperture Division to be reasonable, not all have a gas activated carbon absorption capacity, only a large aperture Lueda Yu poisonous gas molecules diameter of activated carbon, have very strong absorption capacity.
  2. activated carbon Thai Process not suitable for addition to formaldehyde Activated carbon adsorption of a gas needs of the contact area, is generally activated carbon Thai add molding or extrusion molding adhesives, in particular the adhesive will add block-effective part of activated carbon to the activated carbon adsorption properties decreased significantly, the results in general will decline 30 40 percent, carbon caused massive carved the surface is certainly smaller. 0.42 ~ 0.85mm size of granular activated carbon as the main vector of the best effect on the country's two indoor air quality standard GB50325 and GB/T18883 has made clear provisions for the absorption of harmful gases is the indoor 20 to 40 heads of activated carbon.
  3. the capacity of activated carbon Thai exaggerated Because the surface area of small, the decision of the small capacity, according to a high surface area 1500-2000 sq ft / grams, 50 grams per square foot of the amount, if formaldehyde and other harmful gases released faster, up to 5-8 months, the Thai activated carbon The capacity to exaggerate the use of 3-10 years is to deceive consumers. Activated carbon absorption of harmful gas as the principle of the same absorbent sponge, sponge the capacity of some, the greater leakage, the sponge saturated absorption capacity, activated carbon is a carbon-containing materials from the appearance of black, internal pore structure developed, Large surface area, the absorption ability of a class of carbon-ceramic materials. Because there are a large number of activated carbon in the porous naked eye can not see a grain of rice - the size of activated carbon particles in a porous, a large surface area equivalent to the size of the living room walls, and the large number of activated carbon surface molecules can produce a powerful gravitational force, Adsorption medium of the impurities and heavier elements, such as chlorine, benzene, ammonia, and so on, so at home, placing a certain amount of activated carbon to effectively "capture" all kinds of harmful toxic gases and impurities. But as the Billiard Checkers board, activated carbon to the absorption of harmful gases equivalent to one piece of Qianjin chessboard box. Activated carbon adsorption capacity will be filled with the porous gradually weaken and eventually reach saturation absorption. Therefore, if there are constantly new sources of the use of activated carbon to purify the air, for a period of time to time for activated carbon. Therefore such an unlimited number of absorption unrealistic.
  4. the existence of price profiteering Indoor air pollution as the general price of activated carbon for 50-60 yuan / kg, and carved a carbon to at least 100 pieces, you can reach the thousands of pieces, a 20-square foot room will be put on 3-5 is not necessarily what Significant results. But after a few months will not achieve enough suction to do with the air purification.
  5. what kind of fitness room full of activated carbon Thai pendulum No pollution of carbon placed in a room carved, decorated rooms, can also absorb part of the human smell, the smell of these elements is relatively small, not big volume, the use of carbon Thai time will be longer. Thai Carbon various decision only as a display.

Tips on the use of activated carbon

  1. Activated carbon adsorption capacity and the shape it has a lot. The smaller the particle, the greater surface area, the better the absorption effect. Instead, the duo into the worst effects of activated carbon adsorption. Therefore, if the use of the bulk of activated carbon, preferably under way into a face.
  2. Purifier on the use of activated carbon, the time for a long time, get a sun drying under the sun can continue to use it.
  3. Apart from the drawers and bookcases, activated carbon on Xiaozhu Kuang Li, Heating mask, or Chu Li will spend more convenient.
  4. The use of high-grade floor suitable for families with activated carbon, can be extended the life of the floor