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Mechanochemistry refers to the application of mechanical energy to solids, liquids, and Other condensed matter by means of shearing, friction, impact, and extrusion to induce structural and physicochemical changes and induce chemical reactions. Different from common thermochemical reactions, the power of mechanochemical reaction is mechanical energy rather than thermal energy, so the reaction can be completed without harsh conditions such as high temperature and high pressure. Based on this, the mechanochemical method has now developed into a standard process for chemical synthesis, material preparation and modification.
POPs mechanical chemical treatment process has the following advantages:
The first is simple process flow, mild operating conditions, low energy consumption, and high efficiency. The use of mechanochemical processes to treat POPs contaminants eliminates the need for any special pretreatment of the waste materials. Material mixing, dispersion, and reaction are all accomplished in a single process within the ball mill. The process is simple; operations are performed at ambient temperature and pressure conditions, without the need for high temperature and pressure. Or harsh conditions such as vacuum, easy to implement, mechanical chemical reactor 2 ball mill capacity varies depending on the amount of pollutants, can be large or small, small unit energy consumption, low processing costs, high processing efficiency.
The second is a wide range of applications that can handle various types and forms of pollution. Wastes containing various POPs such as polychlorinated biphenyls, dioxins, insecticides, etc., regardless of the concentration level and the existing form, can be subjected to a harmless treatment using a mechanochemical process. The use of conventional processes to treat or dispose of high-cost pure PCB oils, high concentrations of pesticides, and solid wastes containing extremely low concentrations of dioxins is equally cost-effective with mechanochemical processes. In addition, for soils and building wastes that are contaminated with POPs, no enrichment pretreatment is required, and the mechanization process can be used in situ to achieve harmless purposes.
Third, the safety is good, the discharge of potential secondary pollutants is small, and the recycling of resources can be effectively realized. Because mechanical and chemical treatment operations are carried out in a closed system under normal temperature and pressure, there is no emission of gaseous pollutants and the regeneration of dioxin and other POPs during the treatment process, and the treatment of pollutants is very thorough, reducing the amount of potential secondary pollutants. The metal used for dehalogenation can be recovered.
New technologies for destroying POPs have three major advantages
The use of mechanochemical processing technology to destroy POPs pollution is now being recognized by more people.
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