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What is the application of nano-materials? Introduction: mention the word 'nano,Many people may have heard of it,But what is nano,What is nano-material,It may not be clear to many people,This paper mainly introduces the research status and development prospects of nano-and nano-materials,I believe that with the development of science and technology,There will be more and more nano-materials coming into people's lives,For the benefit of mankind.Nano is the translation of English namometer,Is a unit of measure in physics,1 nano is one billion of 1 m;Equivalent to the length of 45 atoms arranged.Generally speaking,Equivalent to the thickness of one in ten hair.Like mm, Micron,Nano is a scale concept,There is no physical connotation.When the material reaches the nano scale,It's about 1-This range of 100 nm,The performance of the substance will change,Special performance appears.This one is different from the original atoms and molecules,Material that is also different from the special properties of m
Angel front filter household water purifier? Estimated can
Sewage purification treatment The so-called sewage purification treatment,The effluent quality of the treated sewage is very good,Its indicators should at least meet the above requirements for reuse,It is called sewage purification treatment.The traditional sewage treatment process is adopted,After the sewage is treated,To achieve the effect of purification treatment,The treatment process generally adopts a treatment process of three or more levels.The first-stage process is pretreatment,The second level is biochemical treatment,The third level is deep processing,Only in this way,In order to completely remove the pollutants in the sewage,The quality of the effluent reaches the level of purification.There are many pretreatment processes,Generally, depending on the water quality,The most commonly used methods are horizontal sand sink, vertical flow sand sink, Cyclone sand sink, aeration sand sink, horizontal flow sedimentation tank, vertical flow sedimentation tank, radial flow sed
