Investigation And Study On Effect Of Chemical Deicing Salt For Environment

In the process of the struggle between man and snow, the origin and the development ofthe melting snow as well as its influence on the environment were elaborated in the paper. Thepaper, form the classification of the melting snow has successively at expounded the thawprinciple of the melting snow and its development survey, then draws out the main content:the influence of the melting snow on environment, including the corrosion and the reason ofthe chlorine salt thaw medicinal preparation (namely deicing salt) to the reinforced concrete,the corrosion to the metal as well as the harm to the plant, involving some disadvantagefactors of the deicing salt to water, the soil, atmosphere and basic building. Take freeze losses of melting experiment for example: weight the samples which is 10×10×10 cm. Compound the solution of deicing whose densities are 0%, 15%, 25%, 35%. Thenext step is to put the samples into solution with different density. After that, calculate the rateof losing weight. The rate can reflect the effect of the environment. In order to make sure thatdeicing salt harm for the plant, we did an experiment like this: Irrigating the lawn with thesolution of deicing whose density are 0.05mol/L.every 6 hours raise its density 0.05mol/L andgo to 0.2mol/L. Observe the appearance. On the other lawn, we irrigate with the solution ofdeicing whose density is 0.2mol/L.Observe the appearance. Carry the soil samples onphysics,chemical property analysis. In addition, the ingredient analysis and explanation to some so-called "the environmentalmelting snow" that appears in the present market were carried on in the paper, and the factthat some environmental protections melting snow cannot protect environment werepromulgated. Several kinds of the environmental protection about that has the environmentalprotection significance melting snow were introduced, and its ingredient and the performancewere narrated. However, this melting snow that has the true environmental significance hasdifficulty competing with the melting snow that contains Chlorine for a while. Therefore in avery long period of time, the chlorine salt melting snow also will be able to continue to playthe role in the later snow removal operation, in order to reduce its influence on theenvironment, we should pay attention to its application, its dusting way as well as its usedamount when using it.At last , the ingredient analysis the answer of experiments, we know that the influence ofthe melting snow for the building,the plant,the water and the atmosphere is harm. Meltingsnow also has the certain influence to the soil physical property,creates the soil moisturecontent to reduce,the soil temperature rises the higher phenomenon. The hard cover is not bigto the soil chemical property influence N,P,K content is not obvious change. The harm of themelting snow for environment is still existing,we only reduce its harm with technology. Andgive some suggestion for lower flues of melting snow.